1728 lines
78 KiB
Python
1728 lines
78 KiB
Python
'''This package contains mixin classes that are mixed in with generated classes:
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- mixins/BaseMixin is mixed in with standard Zope classes;
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- mixins/ToolMixin is mixed in with the generated application Tool class.'''
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# ------------------------------------------------------------------------------
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import os, os.path, re, sys, types, urllib, cgi
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from appy import Object
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from appy.px import Px
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from appy.fields.workflow import UiTransition
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import appy.gen as gen
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from appy.gen.utils import *
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from appy.gen.layout import Table
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from appy.gen.descriptors import WorkflowDescriptor, ClassDescriptor
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from appy.shared import utils as sutils
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from appy.shared.data import rtlLanguages
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from appy.shared.xml_parser import XmlMarshaller, XmlUnmarshaller
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from appy.shared.diff import HtmlDiff
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# ------------------------------------------------------------------------------
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NUMBERED_ID = re.compile('.+\d{4}$')
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# ------------------------------------------------------------------------------
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class BaseMixin:
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'''Every Zope class generated by appy.gen inherits from this class or a
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subclass of it.'''
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_appy_meta_type = 'Class'
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def get_o(self):
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'''In some cases, we want the Zope object, we don't know if the current
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object is a Zope or Appy object. By defining this property,
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"someObject.o" produces always the Zope object, be someObject an Appy
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or Zope object.'''
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return self
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o = property(get_o)
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def getInitiatorInfo(self, appy=False):
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'''Gets information about a potential initiator object from the request.
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Returns a 2-tuple (initiator, field):
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* initiator is the initiator (Zope or Appy) object;
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* field is the Ref instance.
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'''
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rq = self.REQUEST
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if not rq.get('nav', '').startswith('ref.'): return None, None
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splitted = rq['nav'].split('.')
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initiator = self.getTool().getObject(splitted[1])
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field = initiator.getAppyType(splitted[2])
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if appy: initiator = initiator.appy()
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return initiator, field
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def createOrUpdate(self, created, values,
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initiator=None, initiatorField=None):
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'''This method creates (if p_created is True) or updates an object.
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p_values are manipulated versions of those from the HTTP request.
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In the case of an object creation from the web (p_created is True
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and a REQUEST object is present), p_self is a temporary object
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created in /temp_folder, and this method moves it at its "final"
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place. In the case of an update, this method simply updates fields
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of p_self.'''
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rq = getattr(self, 'REQUEST', None)
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obj = self
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if created and rq:
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# Create the final object and put it at the right place.
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tool = self.getTool()
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# The app may define a method klass.generateUid for producing an UID
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# for instance of this class. If no such method is found, we use the
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# standard Appy method to produce an UID.
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id = None
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klass = tool.getAppyClass(obj.portal_type)
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if hasattr(klass, 'generateUid'):
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id = klass.generateUid(obj.REQUEST)
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if not id:
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id = tool.generateUid(obj.portal_type)
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if not initiator:
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folder = tool.getPath('/data')
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else:
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folder = initiator.getCreateFolder()
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# Check that the user can add objects through this Ref.
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initiatorField.checkAdd(initiator)
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obj = createObject(folder, id, obj.portal_type, tool.getAppName())
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# Get the fields on the current page
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fields = None
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if rq: fields = self.getAppyTypes('edit', rq.get('page'))
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# Remember the previous values of fields, for potential historization
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previousData = None
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if not created and fields:
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previousData = obj.rememberPreviousData(fields)
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# Perform the change on the object
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if fields:
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# Store in the database the new value coming from the form
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for field in fields:
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value = getattr(values, field.name, None)
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field.store(obj, value)
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if previousData:
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# Keep in history potential changes on historized fields
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obj.historizeData(previousData)
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# Call the custom "onEditEarly" if available. This method is called
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# *before* potentially linking the object to its initiator.
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appyObject = obj.appy()
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if created and hasattr(appyObject, 'onEditEarly'):
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appyObject.onEditEarly()
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# Manage potential link with an initiator object
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if created and initiator:
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initiator.appy().link(initiatorField.name, appyObject)
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# Call the custom "onEdit" if available
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msg = None # The message to display to the user. It can be set by onEdit
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if hasattr(appyObject, 'onEdit'): msg = appyObject.onEdit(created)
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# Update last modification date
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if not created:
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from DateTime import DateTime
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obj.modified = DateTime()
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# Unlock the currently saved page on the object
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if rq: self.removeLock(rq['page'])
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obj.reindex()
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return obj, msg
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def updateField(self, name, value):
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'''Updates a single field p_name with new p_value.'''
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field = self.getAppyType(name)
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# Remember previous value if the field is historized.
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previousData = self.rememberPreviousData([field])
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# Store the new value into the database
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field.store(self, value)
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# Update the object history when relevant
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if previousData: self.historizeData(previousData)
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# Update last modification date
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from DateTime import DateTime
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self.modified = DateTime()
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def delete(self):
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'''This method is self's suicide.'''
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# Call a custom "onDelete" if it exists
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appyObj = self.appy()
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if hasattr(appyObj, 'onDelete'): appyObj.onDelete()
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# Any people referencing me must forget me now
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for field in self.getAllAppyTypes():
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if field.type != 'Ref': continue
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for obj in field.getValue(self):
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field.back.unlinkObject(obj, appyObj, back=True)
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# Uncatalog the object
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self.reindex(unindex=True)
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# Delete the filesystem folder corresponding to this object
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folder = os.path.join(*self.getFsFolder())
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if os.path.exists(folder):
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sutils.FolderDeleter.delete(folder)
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sutils.FolderDeleter.deleteEmpty(os.path.dirname(folder))
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# Delete the object
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self.getParentNode().manage_delObjects([self.id])
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def onDelete(self):
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'''Called when an object deletion is triggered from the ui.'''
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rq = self.REQUEST
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self.delete()
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if self.getUrl(rq['HTTP_REFERER'],mode='raw') ==self.getUrl(mode='raw'):
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# We were consulting the object that has been deleted. Go back to
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# the main page.
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urlBack = self.getTool().getSiteUrl()
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else:
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urlBack = self.getUrl(rq['HTTP_REFERER'])
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self.say(self.translate('action_done'))
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self.goto(urlBack)
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def onDeleteEvent(self):
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'''Called when an event (from object history) deletion is triggered
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from the ui.'''
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rq = self.REQUEST
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# Re-create object history, but without the event corresponding to
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# rq['eventTime']
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history = []
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from DateTime import DateTime
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eventToDelete = DateTime(rq['eventTime'])
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for event in self.workflow_history['appy']:
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if (event['action'] != '_datachange_') or \
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(event['time'] != eventToDelete):
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history.append(event)
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self.workflow_history['appy'] = tuple(history)
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appy = self.appy()
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self.log('data change event deleted for %s.' % appy.uid)
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self.goto(self.getUrl(rq['HTTP_REFERER']))
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def onLink(self):
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'''Called when object (un)linking is triggered from the ui.'''
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rq = self.REQUEST
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tool = self.getTool()
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sourceObject = tool.getObject(rq['sourceUid'])
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field = sourceObject.getAppyType(rq['fieldName'])
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return field.onUiRequest(sourceObject, rq)
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def onCreate(self):
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'''This method is called when a user wants to create a root object in
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the "data" folder or an object through a reference field. A temporary
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object is created in /temp_folder and the edit page to it is
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returned.'''
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rq = self.REQUEST
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className = rq.get('className')
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# Create the params to add to the URL we will redirect the user to
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# create the object.
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urlParams = {'mode':'edit', 'page':'main', 'nav':'',
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'inPopup':rq.get('popup') == '1'}
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initiator, initiatorField = self.getInitiatorInfo()
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if initiator:
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# The object to create will be linked to an initiator object through
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# a Ref field. We create here a new navigation string with one more
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# item, that will be the currently created item.
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splitted = rq.get('nav').split('.')
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splitted[-1] = splitted[-2] = str(int(splitted[-1])+1)
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urlParams['nav'] = '.'.join(splitted)
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# Check that the user can add objects through this Ref field
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initiatorField.checkAdd(initiator)
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# Create a temp object in /temp_folder
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tool = self.getTool()
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id = tool.generateUid(className)
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appName = tool.getAppName()
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obj = createObject(tool.getPath('/temp_folder'), id, className, appName)
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return self.goto(obj.getUrl(**urlParams))
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def getDbFolder(self):
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'''Gets the folder, on the filesystem, where the database (Data.fs and
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sub-folders) lies.'''
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return os.path.dirname(self.getTool().getApp()._p_jar.db().getName())
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def getFsFolder(self, create=False):
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'''Gets the folder where binary files tied to this object will be stored
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on the filesystem. If p_create is True and the folder does not exist,
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it is created (together with potentially missing parent folders).
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This folder is returned as a tuple (s_baseDbFolder, s_subPath).'''
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objId = self.id
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# Get the root folder where Data.fs lies.
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dbFolder = self.getDbFolder()
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# Build the list of path elements within this db folder.
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path = []
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inConfig = False
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for elem in self.getPhysicalPath():
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if not elem: continue
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if elem == 'data': continue
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if elem == 'config': inConfig = True
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if not path or ((len(path) == 1) and inConfig):
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# This object is at the root of the filesystem.
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if NUMBERED_ID.match(elem):
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path.append(elem[-4:])
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path.append(elem)
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# We are done if elem corresponds to the object id.
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if elem == objId: break
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path = os.sep.join(path)
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if create:
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fullPath = os.path.join(dbFolder, path)
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if not os.path.exists(fullPath): os.makedirs(fullPath)
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return dbFolder, path
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def view(self):
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'''Returns the view PX.'''
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obj = self.appy()
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return obj.pxView({'obj': obj, 'tool': obj.tool})
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def edit(self):
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'''Returns the edit PX.'''
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obj = self.appy()
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return obj.pxEdit({'obj': obj, 'tool': obj.tool})
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def ajax(self):
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'''Called via an Ajax request to render some PX whose name is in the
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request.'''
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obj = self.appy()
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return obj.pxAjax({'obj': obj, 'tool': obj.tool})
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def setLock(self, user, page):
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'''A p_user edits a given p_page on this object: we will set a lock, to
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prevent other users to edit this page at the same time.'''
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if not hasattr(self.aq_base, 'locks'):
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# Create the persistent mapping that will store the lock
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# ~{s_page: (s_userId, DateTime_lockDate)}~
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from persistent.mapping import PersistentMapping
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self.locks = PersistentMapping()
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# Raise an error is the page is already locked by someone else. If the
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# page is already locked by the same user, we don't mind: he could have
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# used back/forward buttons of its browser...
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userId = user.login
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if (page in self.locks) and (userId != self.locks[page][0]):
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self.raiseUnauthorized('This page is locked.')
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# Set the lock
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from DateTime import DateTime
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self.locks[page] = (userId, DateTime())
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def isLocked(self, user, page):
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'''Is this page locked? If the page is locked by the same user, we don't
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mind and consider the page as unlocked. If the page is locked, this
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method returns the tuple (userId, lockDate).'''
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if hasattr(self.aq_base, 'locks') and (page in self.locks):
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if (user.login != self.locks[page][0]): return self.locks[page]
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def removeLock(self, page, force=False):
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'''Removes the lock on the current page. This happens:
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- after the page has been saved: the lock must be released;
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- or when an admin wants to force the deletion of a lock that was
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left on p_page for too long (p_force=True).
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'''
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if page not in self.locks: return
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# Raise an error if the user that saves changes is not the one that
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# has locked the page (excepted if p_force is True)
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if not force:
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userId = self.getTool().getUser().login
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if self.locks[page][0] != userId:
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self.raiseUnauthorized('This page was locked by someone else.')
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# Remove the lock
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del self.locks[page]
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def removeMyLock(self, user, page):
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'''If p_user has set a lock on p_page, this method removes it. This
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method is called when the user that locked a page consults
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pxView for this page. In this case, we consider that the user has
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left the edit page in an unexpected way and we remove the lock.'''
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if hasattr(self.aq_base, 'locks') and (page in self.locks) and \
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(user.login == self.locks[page][0]):
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del self.locks[page]
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def onUnlock(self):
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'''Called when an admin wants to remove a lock that was left for too
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long by some user.'''
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rq = self.REQUEST
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tool = self.getTool()
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obj = tool.getObject(rq['objectUid'])
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obj.removeLock(rq['pageName'], force=True)
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urlBack = self.getUrl(rq['HTTP_REFERER'])
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self.say(self.translate('action_done'))
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self.goto(urlBack)
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def intraFieldValidation(self, errors, values):
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'''This method performs field-specific validation for every field from
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the page that is being created or edited. For every field whose
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validation generates an error, we add an entry in p_errors. For every
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field, we add in p_values an entry with the "ready-to-store" field
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value.'''
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rq = self.REQUEST
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for field in self.getAppyTypes('edit', rq.form.get('page')):
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if not field.validable or not field.isClientVisible(self): continue
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value = field.getRequestValue(self)
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message = field.validate(self, value)
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if message:
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setattr(errors, field.name, message)
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else:
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setattr(values, field.name, field.getStorableValue(self, value))
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# Validate sub-fields within Lists
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if field.type != 'List': continue
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i = -1
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for row in value:
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i += 1
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for name, subField in field.fields:
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message = subField.validate(self, getattr(row,name,None))
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if message:
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setattr(errors, '%s*%d' % (subField.name, i), message)
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def interFieldValidation(self, errors, values):
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'''This method is called when individual validation of all fields
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succeed (when editing or creating an object). Then, this method
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performs inter-field validation. This way, the user must first
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correct individual fields before being confronted to potential
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inter-field validation errors.'''
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obj = self.appy()
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if not hasattr(obj, 'validate'): return
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msg = obj.validate(values, errors)
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# Those custom validation methods may have added fields in the given
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# p_errors object. Within this object, for every error message that is
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# not a string, we replace it with the standard validation error for the
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# corresponding field.
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for key, value in errors.__dict__.iteritems():
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resValue = value
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if not isinstance(resValue, basestring):
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resValue = self.translate('field_invalid')
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setattr(errors, key, resValue)
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return msg
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def onUpdate(self):
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'''This method is executed when a user wants to update an object.
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The object may be a temporary object created in /temp_folder.
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In this case, the update consists in moving it to its "final" place.
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If the object is not a temporary one, this method updates its
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fields in the database.'''
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rq = self.REQUEST
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tool = self.getTool()
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errorMessage = self.translate('validation_error')
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isNew = self.isTemporary()
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inPopup = rq.get('popup') == '1'
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# If this object is created from an initiator, get info about him
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initiator, initiatorField = self.getInitiatorInfo()
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initiatorPage = initiatorField and initiatorField.pageName or None
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# If the user clicked on 'Cancel', go back to the previous page
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buttonClicked = rq.get('button')
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if buttonClicked == 'cancel':
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if inPopup: back = tool.backFromPopup()
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elif initiator: # Go back to the initiator page
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urlBack = initiator.getUrl(page=initiatorPage, nav='')
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else:
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if isNew: urlBack = tool.getHomePage() # Go back to home page
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else:
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# Return to the same page, excepted if unshowable on view.
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phaseObj = self.getAppyPhases(True, 'view')
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pageInfo = phaseObj.getPageInfo(rq['page'], 'view')
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if not pageInfo: urlBack = tool.getHomePage()
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else: urlBack = self.getUrl(page=pageInfo.page.name)
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self.say(self.translate('object_canceled'))
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self.removeLock(rq['page'])
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if inPopup: return back
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return self.goto(urlBack)
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# Object for storing validation errors
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errors = Object()
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# Object for storing the (converted) values from the request
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values = Object()
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# Trigger field-specific validation
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self.intraFieldValidation(errors, values)
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if errors.__dict__:
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for k,v in errors.__dict__.iteritems(): rq.set('%s_error' % k, v)
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self.say(errorMessage)
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return self.gotoEdit()
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# Trigger inter-field validation
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msg = self.interFieldValidation(errors, values)
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if not msg: msg = errorMessage
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if errors.__dict__:
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for k,v in errors.__dict__.iteritems(): rq.set('%s_error' % k, v)
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self.say(msg)
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return self.gotoEdit()
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# Before saving data, must we ask a confirmation by the user ?
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appyObj = self.appy()
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saveConfirmed = rq.get('confirmed') == 'True'
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if hasattr(appyObj, 'confirm') and not saveConfirmed:
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msg = appyObj.confirm(values)
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if msg:
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rq.set('confirmMsg', msg.replace("'", "\\'"))
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return self.gotoEdit()
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# Create or update the object in the database
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obj, msg = self.createOrUpdate(isNew, values, initiator, initiatorField)
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# Redirect the user to the appropriate page
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if not msg: msg = self.translate('object_saved')
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# If the object has already been deleted (ie, it is a kind of transient
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# object like a one-shot form and has already been deleted in method
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# onEdit) or if the user can't access the object anymore, redirect him
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# to the user's home page.
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if not getattr(obj.getParentNode().aq_base, obj.id, None) or \
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not obj.mayView():
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if inPopup: return tool.backFromPopup()
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return self.goto(tool.getHomePage(), msg)
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if (buttonClicked == 'save') or saveConfirmed:
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obj.say(msg)
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if inPopup: return tool.backFromPopup()
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if isNew and initiator:
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return self.goto(initiator.getUrl(page=initiatorPage, nav=''))
|
|
# Return to the same page, if showable on view
|
|
phaseObj = self.getAppyPhases(True, 'view')
|
|
pageInfo = phaseObj.getPageInfo(rq['page'], 'view')
|
|
if not pageInfo: return self.goto(tool.getHomePage(), msg)
|
|
return self.goto(obj.getUrl(page=pageInfo.page.name))
|
|
# Get the current page name. We keep it in "pageName" because rq['page']
|
|
# can be changed by m_getAppyPhases called below.
|
|
pageName = rq['page']
|
|
if buttonClicked in ('previous', 'next'):
|
|
# Go to the previous or next page for this object. We recompute the
|
|
# list of phases and pages because things may have changed since the
|
|
# object has been updated (ie, additional pages may be shown or
|
|
# hidden now, so the next and previous pages may have changed).
|
|
# Moreover, previous and next pages may not be available in "edit"
|
|
# mode, so we return the edit or view pages depending on page.show.
|
|
phaseObj = self.getAppyPhases(True, 'edit')
|
|
methodName = 'get%sPage' % buttonClicked.capitalize()
|
|
pageName, pageInfo = getattr(phaseObj, methodName)(pageName)
|
|
if pageName:
|
|
# Return to the edit or view page?
|
|
if pageInfo.showOnEdit:
|
|
# I do not use gotoEdit here because I really need to
|
|
# redirect the user to the edit page. Indeed, the object
|
|
# edit URL may have moved from temp_folder to another place.
|
|
return self.goto(obj.getUrl(mode='edit', page=pageName,
|
|
inPopup=inPopup))
|
|
else:
|
|
return self.goto(obj.getUrl(page=pageName, inPopup=inPopup))
|
|
else:
|
|
obj.say(msg)
|
|
return self.goto(obj.getUrl(inPopup=inPopup))
|
|
return obj.gotoEdit()
|
|
|
|
def reindex(self, indexes=None, unindex=False):
|
|
'''Reindexes this object the catalog. If names of indexes are specified
|
|
in p_indexes, recataloging is limited to those indexes. If p_unindex
|
|
is True, instead of cataloguing the object, it uncatalogs it.'''
|
|
path = '/'.join(self.getPhysicalPath())
|
|
catalog = self.getPhysicalRoot().catalog
|
|
if unindex:
|
|
catalog.uncatalog_object(path)
|
|
else:
|
|
if indexes:
|
|
catalog.catalog_object(self, path, idxs=indexes)
|
|
else:
|
|
# Get the list of indexes that apply on this object. Else, Zope
|
|
# will reindex all indexes defined in the catalog, and through
|
|
# acquisition, wrong methods can be called on wrong objects.
|
|
iNames = self.wrapperClass.getIndexes().keys()
|
|
catalog.catalog_object(self, path, idxs=iNames)
|
|
|
|
def xml(self, action=None):
|
|
'''If no p_action is defined, this method returns the XML version of
|
|
this object. Else, it calls method named p_action on the
|
|
corresponding Appy wrapper and returns, as XML, its result.'''
|
|
self.REQUEST.RESPONSE.setHeader('Content-Type','text/xml;charset=utf-8')
|
|
# Check if the user is allowed to consult this object
|
|
if not self.mayView(): return XmlMarshaller().marshall('Unauthorized')
|
|
if not action:
|
|
marshaller = XmlMarshaller(rootTag=self.getClass().__name__,
|
|
dumpUnicode=True)
|
|
res = marshaller.marshall(self, objectType='appy')
|
|
else:
|
|
appyObj = self.appy()
|
|
try:
|
|
methodRes = getattr(appyObj, action)()
|
|
if isinstance(methodRes, Px):
|
|
res = methodRes({'self': self.appy()})
|
|
elif isinstance(methodRes, file):
|
|
res = methodRes.read()
|
|
methodRes.close()
|
|
elif isinstance(methodRes, basestring) and \
|
|
methodRes.startswith('<?xml'): # Already XML
|
|
return methodRes
|
|
else:
|
|
res = XmlMarshaller().marshall(methodRes, objectType='appy')
|
|
except Exception, e:
|
|
tb = sutils.Traceback.get()
|
|
res = XmlMarshaller(rootTag='exception').marshall(tb)
|
|
return res
|
|
|
|
def say(self, msg, type='info'):
|
|
'''Prints a p_msg in the user interface. p_logLevel may be "info",
|
|
"warning" or "error".'''
|
|
rq = self.REQUEST
|
|
if 'messages' not in rq.SESSION.keys():
|
|
plist = self.getProductConfig().PersistentList
|
|
messages = rq.SESSION['messages'] = plist()
|
|
else:
|
|
messages = rq.SESSION['messages']
|
|
messages.append( (type, msg) )
|
|
|
|
def log(self, msg, type='info'):
|
|
'''Logs a p_msg in the log file. p_logLevel may be "info", "warning"
|
|
or "error".'''
|
|
logger = self.getProductConfig().logger
|
|
if type == 'warning': logMethod = logger.warn
|
|
elif type == 'error': logMethod = logger.error
|
|
else: logMethod = logger.info
|
|
user = self.getTool().getUser()
|
|
# There could be not user at all (even not "anon") if we are trying to
|
|
# authenticate an inexistent user for example.
|
|
login = user and user.login or 'anon'
|
|
logMethod('%s: %s' % (login, msg))
|
|
|
|
def do(self):
|
|
'''Performs some action from the user interface.'''
|
|
rq = self.REQUEST
|
|
action = rq['action']
|
|
if rq.get('objectUid', None):
|
|
obj = self.getTool().getObject(rq['objectUid'])
|
|
else:
|
|
obj = self
|
|
if rq.get('appy', None) == '1': obj = obj.appy()
|
|
return getattr(obj, 'on'+action)()
|
|
|
|
def raiseUnauthorized(self, msg=None):
|
|
'''Raise an error "Unauthorized access".'''
|
|
from AccessControl import Unauthorized
|
|
if msg: raise Unauthorized(msg)
|
|
raise Unauthorized()
|
|
|
|
def rememberPreviousData(self, fields):
|
|
'''This method is called before updating an object and remembers, for
|
|
every historized field, the previous value. Result is a dict
|
|
~{s_fieldName: previousFieldValue}~'''
|
|
res = {}
|
|
for field in fields:
|
|
if not field.getAttribute(self, 'historized'): continue
|
|
res[field.name] = field.getValue(self)
|
|
return res
|
|
|
|
def addHistoryEvent(self, action, **kw):
|
|
'''Adds an event in the object history.'''
|
|
user = self.getTool().getUser()
|
|
userId = user and user.login or 'system'
|
|
from DateTime import DateTime
|
|
event = {'action': action, 'actor': userId, 'time': DateTime(),
|
|
'comments': ''}
|
|
event.update(kw)
|
|
if 'review_state' not in event: event['review_state'] = self.State()
|
|
# Add the event to the history
|
|
self.workflow_history['appy'] += (event,)
|
|
|
|
def addDataChange(self, changes, notForPreviouslyEmptyValues=False):
|
|
'''This method allows to add "manually" a data change into the objet's
|
|
history. Indeed, data changes are "automatically" recorded only when
|
|
a HTTP form is uploaded, not if, in the code, a setter is called on
|
|
a field. The method is also called by m_historizeData below, that
|
|
performs "automatic" recording when a HTTP form is uploaded. Field
|
|
changes for which the previous value was empty are not recorded into
|
|
the history if p_notForPreviouslyEmptyValues is True.
|
|
|
|
For a multilingual string field, p_changes can contain a key for
|
|
every language, of the form <field name>-<language>.'''
|
|
# Add to the p_changes dict the field labels
|
|
for name in changes.keys():
|
|
# "name" can contain the language for multilingual fields.
|
|
if '-' in name:
|
|
fieldName, lg = name.split('-')
|
|
else:
|
|
fieldName = name
|
|
lg = None
|
|
field = self.getAppyType(fieldName)
|
|
if notForPreviouslyEmptyValues:
|
|
# Check if the previous field value was empty
|
|
if lg:
|
|
isEmpty = not changes[name] or not changes[name].get(lg)
|
|
else:
|
|
isEmpty = field.isEmptyValue(self, changes[name])
|
|
if isEmpty:
|
|
del changes[name]
|
|
else:
|
|
changes[name] = (changes[name], field.labelId)
|
|
# Add an event in the history
|
|
self.addHistoryEvent('_datachange_', changes=changes)
|
|
|
|
def historizeData(self, previousData):
|
|
'''Records in the object history potential changes on historized fields.
|
|
p_previousData contains the values, before an update, of the
|
|
historized fields, while p_self already contains the (potentially)
|
|
modified values.'''
|
|
# Remove from previousData all values that were not changed
|
|
for name in previousData.keys():
|
|
field = self.getAppyType(name)
|
|
prev = previousData[name]
|
|
curr = field.getValue(self)
|
|
try:
|
|
if (prev == curr) or ((prev == None) and (curr == '')) or \
|
|
((prev == '') and (curr == None)):
|
|
del previousData[name]
|
|
continue
|
|
except UnicodeDecodeError, ude:
|
|
# The string comparisons above may imply silent encoding-related
|
|
# conversions that may produce this exception.
|
|
continue
|
|
# In some cases the old value must be formatted.
|
|
if field.type == 'Ref':
|
|
previousData[name] = [r.o.getShownValue('title') \
|
|
for r in previousData[name]]
|
|
elif field.type == 'String':
|
|
languages = field.getAttribute(self, 'languages')
|
|
if len(languages) > 1:
|
|
# Consider every language-specific value as a first-class
|
|
# value.
|
|
del previousData[name]
|
|
for lg in languages:
|
|
lgPrev = prev and prev.get(lg) or None
|
|
lgCurr = curr and curr.get(lg) or None
|
|
if lgPrev == lgCurr: continue
|
|
previousData['%s-%s' % (name, lg)] = lgPrev
|
|
if previousData:
|
|
self.addDataChange(previousData)
|
|
|
|
def goto(self, url, msg=None):
|
|
'''Brings the user to some p_url after an action has been executed.'''
|
|
if msg: self.say(msg)
|
|
return self.REQUEST.RESPONSE.redirect(url)
|
|
|
|
def gotoEdit(self):
|
|
'''Brings the user to the edit page for this object. This method takes
|
|
care of not carrying any password value. Unlike m_goto above, there
|
|
is no HTTP redirect here: we execute directly PX "edit" and we
|
|
return the result.'''
|
|
page = self.REQUEST.get('page', 'main')
|
|
for field in self.getAppyTypes('edit', page):
|
|
if (field.type == 'String') and (field.format in (3,4)):
|
|
self.REQUEST.set(field.name, '')
|
|
return self.edit()
|
|
|
|
def gotoTied(self):
|
|
'''Redirects the user to an object tied to this one.'''
|
|
return self.getAppyType(self.REQUEST['field']).onGotoTied(self)
|
|
|
|
def getCreateFolder(self):
|
|
'''When an object must be created from this one through a Ref field, we
|
|
must know where to put the newly create object: within this one if it
|
|
is folderish, besides this one in its parent else.
|
|
'''
|
|
if self.isPrincipiaFolderish: return self
|
|
return self.getParentNode()
|
|
|
|
def getFieldValue(self, name, layoutType=None, outerValue=None):
|
|
'''Returns the database value of field named p_name for p_self.'''
|
|
if layoutType == 'search': return # No object in search screens.
|
|
field = self.getAppyType(name)
|
|
if field.type == 'Pod': return
|
|
if '*' not in name: return field.getValue(self)
|
|
# The field is an inner field from a List.
|
|
listName, name, i = name.split('*')
|
|
listType = self.getAppyType(listName)
|
|
return listType.getInnerValue(self, outerValue, name, int(i))
|
|
|
|
def getRequestFieldValue(self, name):
|
|
'''Gets the value of field p_name as may be present in the request.'''
|
|
# Return the request value for standard fields.
|
|
if '*' not in name:
|
|
return self.getAppyType(name).getRequestValue(self)
|
|
# For sub-fields within Lists, the corresponding request values have
|
|
# already been computed in the request key corresponding to the whole
|
|
# List.
|
|
listName, name, rowIndex = name.split('*')
|
|
rowIndex = int(rowIndex)
|
|
if rowIndex == -1: return ''
|
|
allValues = self.REQUEST.get(listName)
|
|
if not allValues: return ''
|
|
return getattr(allValues[rowIndex], name, '')
|
|
|
|
def isDebug(self):
|
|
'''Are we in debug mode ?'''
|
|
for arg in sys.argv:
|
|
if arg == 'debug-mode=on': return True
|
|
|
|
def getClass(self, reloaded=False):
|
|
'''Returns the Appy class that dictates self's behaviour.'''
|
|
if not reloaded:
|
|
return self.getTool().getAppyClass(self.__class__.__name__)
|
|
else:
|
|
klass = self.appy().klass
|
|
moduleName = klass.__module__
|
|
exec 'import %s' % moduleName
|
|
exec 'reload(%s)' % moduleName
|
|
exec 'res = %s.%s' % (moduleName, klass.__name__)
|
|
# More manipulations may have occurred in m_update
|
|
if hasattr(res, 'update'):
|
|
parentName= res.__bases__[-1].__name__
|
|
moduleName= 'Products.%s.wrappers' % self.getTool().getAppName()
|
|
exec 'import %s' % moduleName
|
|
exec 'parent = %s.%s' % (moduleName, parentName)
|
|
res.update(parent)
|
|
return res
|
|
|
|
def getAppyType(self, name, className=None):
|
|
'''Returns the Appy type named p_name. If no p_className is defined, the
|
|
field is supposed to belong to self's class.'''
|
|
isInnerType = '*' in name # An inner type lies within a List type.
|
|
subName = None
|
|
if isInnerType:
|
|
elems = name.split('*')
|
|
if len(elems) == 2: name, subName = elems
|
|
else: name, subName, i = elems
|
|
if not className:
|
|
klass = self.__class__.wrapperClass
|
|
else:
|
|
klass = self.getTool().getAppyClass(className, wrapper=True)
|
|
res = getattr(klass, name, None)
|
|
if res and isInnerType: res = res.getField(subName)
|
|
return res
|
|
|
|
def getAllAppyTypes(self, className=None):
|
|
'''Returns the ordered list of all Appy types for self's class if
|
|
p_className is not specified, or for p_className else.'''
|
|
if not className:
|
|
klass = self.__class__.wrapperClass
|
|
else:
|
|
klass = self.getTool().getAppyClass(className, wrapper=True)
|
|
return klass.__fields__
|
|
|
|
def getGroupedFields(self, layoutType, pageName, cssJs=None):
|
|
'''Returns the fields sorted by group. If a dict is given in p_cssJs,
|
|
we will add it in the css and js files required by the fields.'''
|
|
res = []
|
|
groups = {} # The already encountered groups.
|
|
# If a dict is given in p_cssJs, we must fill it with the CSS and JS
|
|
# files required for every returned field.
|
|
collectCssJs = isinstance(cssJs, dict)
|
|
css = js = None
|
|
# If param "refresh" is there, we must reload the Python class
|
|
refresh = ('refresh' in self.REQUEST)
|
|
if refresh:
|
|
klass = self.getClass(reloaded=True)
|
|
for field in self.getAllAppyTypes():
|
|
if refresh: field = field.reload(klass, self)
|
|
if field.page.name != pageName: continue
|
|
if not field.isShowable(self, layoutType): continue
|
|
if collectCssJs:
|
|
if css == None: css = []
|
|
field.getCss(layoutType, css)
|
|
if js == None: js = []
|
|
field.getJs(layoutType, js)
|
|
if not field.group:
|
|
res.append(field)
|
|
else:
|
|
# Insert the UiGroup instance corresponding to field.group.
|
|
uiGroup = field.group.insertInto(res, groups, field.page,
|
|
self.meta_type)
|
|
uiGroup.addElement(field)
|
|
if collectCssJs:
|
|
cssJs['css'] = css or ()
|
|
cssJs['js'] = js or ()
|
|
return res
|
|
|
|
def getAppyTypes(self, layoutType, pageName, type=None):
|
|
'''Returns the list of fields that belong to a given page (p_pageName)
|
|
for a given p_layoutType. If p_pageName is None, fields of all pages
|
|
are returned. If p_type is defined, only fields of this p_type are
|
|
returned. '''
|
|
res = []
|
|
for field in self.getAllAppyTypes():
|
|
if pageName and (field.page.name != pageName): continue
|
|
if type and (field.type != type): continue
|
|
if not field.isShowable(self, layoutType): continue
|
|
res.append(field)
|
|
return res
|
|
|
|
def getSlavesRequestInfo(self, pageName):
|
|
'''When slave fields must be updated via Ajax requests, we must carry
|
|
some information from the global request object to the ajax requests:
|
|
- the selected values in slave fields;
|
|
- validation errors.'''
|
|
requestValues = {}
|
|
errors = {}
|
|
req = self.REQUEST
|
|
for field in self.getAllAppyTypes():
|
|
if field.page.name != pageName: continue
|
|
if field.masterValue and callable(field.masterValue):
|
|
# We have a slave field that is updated via ajax requests.
|
|
name = field.name
|
|
# Remember the request value for this field if present.
|
|
if req.has_key(name) and req[name]:
|
|
requestValues[name] = req[name]
|
|
# Remember the validation error for this field if present.
|
|
errorKey = '%s_error' % name
|
|
if req.has_key(errorKey):
|
|
errors[name] = req[errorKey]
|
|
return sutils.getStringDict(requestValues), sutils.getStringDict(errors)
|
|
|
|
def getCssJs(self, fields, layoutType, res):
|
|
'''Gets, in p_res ~{'css':[s_css], 'js':[s_js]}~ the lists of
|
|
Javascript and CSS files required by Appy types p_fields when shown
|
|
on p_layoutType.'''
|
|
# Lists css and js below are not sets, because order of Javascript
|
|
# inclusion can be important, and this could be losed by using sets.
|
|
css = []
|
|
js = []
|
|
for field in fields:
|
|
field.getCss(layoutType, css)
|
|
field.getJs(layoutType, js)
|
|
res['css'] = css
|
|
res['js'] = js
|
|
|
|
def getCssFor(self, elem):
|
|
'''Gets the name of the CSS class to use for styling some p_elem. If
|
|
self's class does not define a dict "styles", the defaut CSS class
|
|
to use will be named p_elem.'''
|
|
klass = self.getClass()
|
|
if hasattr(klass, 'styles') and (elem in klass.styles):
|
|
return klass.styles[elem]
|
|
return elem
|
|
|
|
def getAppyPhases(self, currentOnly=False, layoutType='view'):
|
|
'''Gets the list of phases that are defined for this content type. If
|
|
p_currentOnly is True, the search is limited to the phase where the
|
|
current page (as defined in the request) lies.'''
|
|
# Get the list of phases
|
|
res = [] # Ordered list of phases
|
|
phases = {} # Dict of phases
|
|
for field in self.getAllAppyTypes():
|
|
fieldPhase = field.page.phase
|
|
if fieldPhase not in phases:
|
|
phase = gen.Phase(fieldPhase, self)
|
|
res.append(phase)
|
|
phases[fieldPhase] = phase
|
|
else:
|
|
phase = phases[fieldPhase]
|
|
phase.addPage(field, self, layoutType)
|
|
if (field.type == 'Ref') and field.navigable:
|
|
phase.addPageLinks(field, self)
|
|
# Remove phases that have no visible page
|
|
for i in range(len(res)-1, -1, -1):
|
|
if not res[i].pages:
|
|
del phases[res[i].name]
|
|
del res[i]
|
|
# Compute next/previous phases of every phase
|
|
for ph in phases.itervalues():
|
|
ph.computeNextPrevious(res)
|
|
ph.totalNbOfPhases = len(res)
|
|
# Restrict the result to the current phase if required
|
|
if currentOnly:
|
|
rq = self.REQUEST
|
|
page = rq.get('page', None)
|
|
if not page:
|
|
if layoutType == 'edit': page = self.getDefaultEditPage()
|
|
else: page = self.getDefaultViewPage()
|
|
for phase in res:
|
|
if page in phase.pages:
|
|
return phase
|
|
# If I am here, it means that the page as defined in the request,
|
|
# or the default page, is not existing nor visible in any phase.
|
|
# In this case I find the first visible page among all phases.
|
|
viewAttr = 'showOn%s' % layoutType.capitalize()
|
|
for phase in res:
|
|
for page in phase.pages:
|
|
if getattr(phase.pagesInfo[page], viewAttr):
|
|
rq.set('page', page)
|
|
pageFound = True
|
|
break
|
|
return phase
|
|
else:
|
|
# Return an empty list if we have a single, link-free page within
|
|
# a single phase.
|
|
if (len(res) == 1) and (len(res[0].pages) == 1) and \
|
|
not res[0].pagesInfo[res[0].pages[0]].links:
|
|
return
|
|
return res
|
|
|
|
def getSupTitle(self, navInfo=''):
|
|
'''Gets the html code (icons,...) that can be shown besides the title
|
|
of an object.'''
|
|
obj = self.appy()
|
|
if hasattr(obj, 'getSupTitle'): return obj.getSupTitle(navInfo)
|
|
return ''
|
|
|
|
def getSubTitle(self):
|
|
'''Gets the content that must appear below the title of an object.'''
|
|
obj = self.appy()
|
|
if hasattr(obj, 'getSubTitle'): return obj.getSubTitle()
|
|
return ''
|
|
|
|
def getSupBreadCrumb(self):
|
|
'''Gets the html code that can be shown besides the title of an object
|
|
in the breadcrumb.'''
|
|
obj = self.appy()
|
|
if hasattr(obj, 'getSupBreadCrumb'): return obj.getSupBreadCrumb()
|
|
return ''
|
|
|
|
def getSubBreadCrumb(self):
|
|
'''Gets the content that must appear below the title of an object in the
|
|
breadcrumb.'''
|
|
obj = self.appy()
|
|
if hasattr(obj, 'getSubBreadCrumb'): return obj.getSubBreadCrumb()
|
|
return ''
|
|
|
|
def getListTitle(self, mode='link', nav='', target=None, page='main',
|
|
inPopup=False, selectJs=None):
|
|
'''Gets the title as it must appear in lists of objects (ie in lists of
|
|
tied objects in a Ref, in query results...).
|
|
|
|
In most cases, a title must appear as a link that leads to the object
|
|
view layout. In this case (p_mode == "link"):
|
|
* p_nav is the navigation parameter allowing navigation between
|
|
this object and others;
|
|
* p_target specifies if the link must be opened in the popup or not;
|
|
* p_page specifies which page to show on the target object view;
|
|
* p_inPopup indicates if we are already in the popup or not.
|
|
|
|
Another p_mode is "select". In this case, we are in a popup for
|
|
selecting objects: every title must not be a link, but clicking on it
|
|
must trigger Javascript code (in p_selectJs) that will select this
|
|
object.
|
|
|
|
The last p_mode is "text". In this case, we simply show the object
|
|
title but with no tied action (link, select).
|
|
'''
|
|
# Compute common parts
|
|
cssClass = self.getCssFor('title')
|
|
title = self.getShownValue('title')
|
|
if mode == 'link':
|
|
inPopup = inPopup or (target.target != '_self')
|
|
url = self.getUrl(page=page, nav=nav, inPopup=inPopup)
|
|
onClick = target.openPopup and \
|
|
(' onclick="%s"' % target.openPopup) or ''
|
|
res = '<a href="%s" class="%s" target="%s"%s>%s</a>' % \
|
|
(url, cssClass, target.target, onClick, title)
|
|
elif mode == 'select':
|
|
res = '<span class="%s clickable" onclick="%s">%s</span>' % \
|
|
(cssClass, selectJs, title)
|
|
elif mode == 'text':
|
|
res = '<span class="%s">%s</span>' % (cssClass, title)
|
|
return res
|
|
|
|
# Workflow methods ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
def initializeWorkflow(self):
|
|
'''Called when an object is created, be it temp or not, for initializing
|
|
workflow-related data on the object.'''
|
|
wf = self.getWorkflow()
|
|
# Get the initial workflow state
|
|
initialState = self.State(name=False)
|
|
# Create a Transition instance representing the initial transition.
|
|
initialTransition = gen.Transition((initialState, initialState))
|
|
initialTransition.trigger('_init_', self, wf, '')
|
|
|
|
def getWorkflow(self, name=False, className=None):
|
|
'''Returns the workflow applicable for p_self (or for any instance of
|
|
p_className if given), or its name, if p_name is True.'''
|
|
if not className:
|
|
wrapperClass = self.wrapperClass
|
|
else:
|
|
wrapperClass = self.getTool().getAppyClass(className, wrapper=True)
|
|
wf = wrapperClass.getWorkflow()
|
|
if not name: return wf
|
|
return WorkflowDescriptor.getWorkflowName(wf)
|
|
|
|
def getWorkflowLabel(self, name=None):
|
|
'''Gets the i18n label for p_name (which can denote a state or a
|
|
transition), or for the current object state if p_name is None.'''
|
|
name = name or self.State()
|
|
return '%s_%s' % (self.getWorkflow(name=True), name)
|
|
|
|
def getTransitions(self, includeFake=True, includeNotShowable=False,
|
|
grouped=True):
|
|
'''This method returns info about transitions (as UiTransition
|
|
instances) that one can trigger from the user interface.
|
|
* if p_includeFake is True, it retrieves transitions that the user
|
|
can't trigger, but for which he needs to know for what reason he
|
|
can't trigger it;
|
|
* if p_includeNotShowable is True, it includes transitions for which
|
|
show=False. Indeed, because "showability" is only a UI concern,
|
|
and not a security concern, in some cases it has sense to set
|
|
includeNotShowable=True, because those transitions are triggerable
|
|
from a security point of view.
|
|
* If p_grouped is True, transitions are grouped according to their
|
|
"group" attribute, in a similar way to fields or searches.
|
|
'''
|
|
res = []
|
|
groups = {} # The already encountered groups of transitions.
|
|
wfPage = gen.Page('workflow')
|
|
wf = self.getWorkflow()
|
|
currentState = self.State(name=False)
|
|
# Loop on every transition
|
|
for name in dir(wf):
|
|
transition = getattr(wf, name)
|
|
if (transition.__class__.__name__ != 'Transition'): continue
|
|
# Filter transitions that do not have currentState as start state
|
|
if not transition.hasState(currentState, True): continue
|
|
# Check if the transition can be triggered
|
|
mayTrigger = transition.isTriggerable(self, wf)
|
|
# Compute the condition that will lead to including or not this
|
|
# transition
|
|
if not includeFake:
|
|
includeIt = mayTrigger
|
|
else:
|
|
includeIt = mayTrigger or isinstance(mayTrigger, gen.No)
|
|
if not includeNotShowable:
|
|
includeIt = includeIt and transition.isShowable(wf, self)
|
|
if not includeIt: continue
|
|
# Create the UiTransition instance.
|
|
info = UiTransition(name, transition, self, mayTrigger)
|
|
# Add the transition into the result.
|
|
if not transition.group or not grouped:
|
|
res.append(info)
|
|
else:
|
|
# Insert the UiGroup instance corresponding to transition.group.
|
|
uiGroup = transition.group.insertInto(res, groups, wfPage,
|
|
self.__class__.__name__, content='transitions')
|
|
uiGroup.addElement(info)
|
|
return res
|
|
|
|
def applyUserIdChange(self, oldId, newId):
|
|
'''A user whose ID was p_oldId has now p_newId. If the old ID was
|
|
mentioned in self's local roles, update it to the new ID. This
|
|
method returns 1 if a change occurred, 0 else.'''
|
|
if oldId in self.__ac_local_roles__:
|
|
localRoles = self.__ac_local_roles__.copy()
|
|
localRoles[newId] = localRoles[oldId]
|
|
del localRoles[oldId]
|
|
self.__ac_local_roles__ = localRoles
|
|
self.reindex()
|
|
return 1
|
|
return 0
|
|
|
|
def findNewValue(self, field, language, history, stopIndex):
|
|
'''This function tries to find a more recent version of value of p_field
|
|
on p_self. In the case of a multilingual field, p_language is
|
|
specified. The method first tries to find it in
|
|
history[:stopIndex+1]. If it does not find it there, it returns the
|
|
current value on p_obj.'''
|
|
i = stopIndex + 1
|
|
name = language and ('%s-%s' % (field.name, language)) or field.name
|
|
while (i-1) >= 0:
|
|
i -= 1
|
|
if history[i]['action'] != '_datachange_': continue
|
|
if name not in history[i]['changes']: continue
|
|
# We have found it!
|
|
return history[i]['changes'][name][0] or ''
|
|
# A most recent version was not found in the history: return the current
|
|
# field value.
|
|
val = field.getValue(self)
|
|
if not language: return val or ''
|
|
return val and val.get(language) or ''
|
|
|
|
def getHistoryTexts(self, event):
|
|
'''Returns a tuple (insertText, deleteText) containing texts to show on,
|
|
respectively, inserted and deleted chunks of text in a XHTML diff.'''
|
|
tool = self.getTool()
|
|
mapping = {'userName': tool.getUserName(event['actor'])}
|
|
res = []
|
|
for type in ('insert', 'delete'):
|
|
msg = self.translate('history_%s' % type, mapping=mapping)
|
|
date = tool.formatDate(event['time'], withHour=True)
|
|
msg = '%s: %s' % (date, msg)
|
|
res.append(msg)
|
|
return res
|
|
|
|
def hasHistory(self, name=None):
|
|
'''Has this object an history? If p_name is specified, the question
|
|
becomes: has this object an history for field p_name?'''
|
|
if not hasattr(self.aq_base, 'workflow_history') or \
|
|
not self.workflow_history: return
|
|
# Return False if the user can't consult the object history
|
|
klass = self.getClass()
|
|
if hasattr(klass, 'showHistory'):
|
|
show = klass.showHistory
|
|
if callable(show): show = klass.showHistory(self.appy())
|
|
if not show: return
|
|
# Get the object history
|
|
history = self.workflow_history['appy']
|
|
if not name:
|
|
for event in history:
|
|
if event['action'] and (event['comments'] != '_invisible_'):
|
|
return True
|
|
else:
|
|
field = self.getAppyType(name)
|
|
# Is this field a multilingual field ?
|
|
languages = None
|
|
if field.type == 'String':
|
|
languages = field.getAttribute(self, 'languages')
|
|
multilingual = len(languages) > 1
|
|
for event in history:
|
|
if event['action'] != '_datachange_': continue
|
|
# Is there a value present for this field in this data change?
|
|
if not multilingual:
|
|
if (name in event['changes']) and \
|
|
(event['changes'][name][0]):
|
|
return True
|
|
else:
|
|
# At least one language-specific value must be present
|
|
for lg in languages:
|
|
lgName = '%s-%s' % (field.name, lg)
|
|
if (lgName in event['changes']) and \
|
|
event['changes'][lgName][0]:
|
|
return True
|
|
|
|
def getHistory(self, startNumber=0, reverse=True, includeInvisible=False,
|
|
batchSize=5):
|
|
'''Returns a copy of the history for this object, sorted in p_reverse
|
|
order if specified (most recent change first), whose invisible events
|
|
have been removed if p_includeInvisible is True.'''
|
|
history = list(self.workflow_history['appy'][1:])
|
|
if not includeInvisible:
|
|
history = [e for e in history if e['comments'] != '_invisible_']
|
|
if reverse: history.reverse()
|
|
# Keep only events which are within the batch.
|
|
res = []
|
|
stopIndex = startNumber + batchSize - 1
|
|
i = -1
|
|
while (i+1) < len(history):
|
|
i += 1
|
|
# Ignore events outside range startNumber:startNumber+batchSize
|
|
if i < startNumber: continue
|
|
if i > stopIndex: break
|
|
if history[i]['action'] == '_datachange_':
|
|
# Take a copy of the event: we will modify it and replace
|
|
# fields' old values by their formatted counterparts.
|
|
event = history[i].copy()
|
|
event['changes'] = {}
|
|
for name, oldValue in history[i]['changes'].iteritems():
|
|
# "name" can specify a language-specific part in a
|
|
# multilingual field. "oldValue" is a tuple
|
|
# (value, fieldName).
|
|
if '-' in name:
|
|
fieldName, lg = name.split('-')
|
|
else:
|
|
fieldName = name
|
|
lg = None
|
|
field = self.getAppyType(fieldName)
|
|
# Field 'name' may not exist, if the history has been
|
|
# transferred from another site. In this case we can't show
|
|
# this data change.
|
|
if not field: continue
|
|
if (field.type == 'String') and \
|
|
(field.format == gen.String.XHTML):
|
|
# For rich text fields, instead of simply showing the
|
|
# previous value, we propose a diff with the next
|
|
# version, excepted if the previous value is empty.
|
|
if lg: isEmpty = not oldValue[0]
|
|
else: isEmpty = field.isEmptyValue(self, oldValue[0])
|
|
if isEmpty:
|
|
val = '-'
|
|
else:
|
|
newValue= self.findNewValue(field, lg, history, i-1)
|
|
# Compute the diff between oldValue and newValue
|
|
iMsg, dMsg = self.getHistoryTexts(event)
|
|
comparator= HtmlDiff(oldValue[0],newValue,iMsg,dMsg)
|
|
val = comparator.get()
|
|
else:
|
|
fmt = lg and 'getUnilingualFormattedValue' or \
|
|
'getFormattedValue'
|
|
val = getattr(field, fmt)(self, oldValue[0]) or '-'
|
|
if isinstance(val, list) or isinstance(val, tuple):
|
|
val = '<ul>%s</ul>' % \
|
|
''.join(['<li>%s</li>' % v for v in val])
|
|
event['changes'][name] = (val, oldValue[1])
|
|
else:
|
|
event = history[i]
|
|
res.append(event)
|
|
return Object(events=res, totalNumber=len(history))
|
|
|
|
def mayNavigate(self):
|
|
'''May the currently logged user see the navigation panel linked to
|
|
this object?'''
|
|
appyObj = self.appy()
|
|
if hasattr(appyObj, 'mayNavigate'): return appyObj.mayNavigate()
|
|
return True
|
|
|
|
def getDefaultViewPage(self):
|
|
'''Which view page must be shown by default?'''
|
|
appyObj = self.appy()
|
|
if hasattr(appyObj, 'getDefaultViewPage'):
|
|
return appyObj.getDefaultViewPage()
|
|
return 'main'
|
|
|
|
def getDefaultEditPage(self):
|
|
'''Which edit page must be shown by default?'''
|
|
appyObj = self.appy()
|
|
if hasattr(appyObj, 'getDefaultEditPage'):
|
|
return appyObj.getDefaultEditPage()
|
|
return 'main'
|
|
|
|
def mayAct(self):
|
|
'''m_mayAct allows to hide the whole set of actions for an object.
|
|
Indeed, beyond workflow security, it can be useful to hide controls
|
|
like "edit" icons/buttons. For example, if a user may only edit some
|
|
Ref fields with add=True on an object, when clicking on "edit", he
|
|
will see an empty edit form.'''
|
|
appyObj = self.appy()
|
|
if hasattr(appyObj, 'mayAct'): return appyObj.mayAct()
|
|
return True
|
|
|
|
def mayDelete(self):
|
|
'''May the currently logged user delete this object?'''
|
|
res = self.allows('delete')
|
|
if not res: return
|
|
# An additional, user-defined condition, may refine the base permission.
|
|
appyObj = self.appy()
|
|
if hasattr(appyObj, 'mayDelete'): return appyObj.mayDelete()
|
|
return True
|
|
|
|
def mayEdit(self, permission='write', permOnly=False, raiseError=False):
|
|
'''May the currently logged user edit this object? p_permission can be a
|
|
field-specific permission. If p_permOnly is True, the specific
|
|
user-defined condition is not evaluated. If p_raiseError is True, if
|
|
the user may not edit p_self, an error is raised.'''
|
|
res = self.allows(permission, raiseError=raiseError)
|
|
if not res: return
|
|
if permOnly: return res
|
|
# An additional, user-defined condition, may refine the base permission.
|
|
appyObj = self.appy()
|
|
if hasattr(appyObj, 'mayEdit'):
|
|
res = appyObj.mayEdit()
|
|
if not res and raiseError: self.raiseUnauthorized()
|
|
return res
|
|
return True
|
|
|
|
def mayView(self, permission='read', raiseError=False):
|
|
'''May the currently logged user view this object? p_permission can be a
|
|
field-specific permission. If p_raiseError is True, if the user may
|
|
not view p_self, an error is raised.'''
|
|
res = self.allows(permission, raiseError=raiseError)
|
|
if not res: return
|
|
# An additional, user-defined condition, may refine the base permission.
|
|
appyObj = self.appy()
|
|
if hasattr(appyObj, 'mayView'):
|
|
res = appyObj.mayView()
|
|
if not res and raiseError: self.raiseUnauthorized()
|
|
return res
|
|
return True
|
|
|
|
def onExecuteAction(self):
|
|
'''Called when a user wants to execute an Appy action on an object.'''
|
|
rq = self.REQUEST
|
|
return self.getAppyType(rq['fieldName']).onUiRequest(self, rq)
|
|
|
|
def onTrigger(self):
|
|
'''Called when a user wants to trigger a transition on an object.'''
|
|
rq = self.REQUEST
|
|
wf = self.getWorkflow()
|
|
# Get the transition
|
|
name = rq['transition']
|
|
transition = getattr(wf, name, None)
|
|
if not transition or (transition.__class__.__name__ != 'Transition'):
|
|
raise Exception('Transition "%s" not found.' % name)
|
|
return transition.onUiRequest(self, wf, name, rq)
|
|
|
|
def getRolesFor(self, permission):
|
|
'''Gets, according to the workflow, the roles that are currently granted
|
|
p_permission on this object.'''
|
|
state = self.State(name=False)
|
|
if permission not in state.permissions:
|
|
wf = self.getWorkflow().__name__
|
|
raise Exception('Permission "%s" not in permissions dict for ' \
|
|
'state %s.%s' % \
|
|
(permission, wf, self.State(name=True)))
|
|
roles = state.permissions[permission]
|
|
if roles: return [role.name for role in roles]
|
|
return ()
|
|
|
|
def appy(self):
|
|
'''Returns a wrapper object allowing to manipulate p_self the Appy
|
|
way.'''
|
|
# Create the dict for storing Appy wrapper on the REQUEST if needed.
|
|
rq = getattr(self, 'REQUEST', None)
|
|
if not rq:
|
|
# We are in test mode or Zope is starting. Use static variable
|
|
# config.fakeRequest instead.
|
|
rq = self.getProductConfig().fakeRequest
|
|
if not hasattr(rq, 'wrappers'): rq.wrappers = {}
|
|
# Return the Appy wrapper if already present in the cache
|
|
uid = self.id
|
|
if uid in rq.wrappers: return rq.wrappers[uid]
|
|
# Create the Appy wrapper, cache it in rq.wrappers and return it
|
|
wrapper = self.wrapperClass(self)
|
|
rq.wrappers[uid] = wrapper
|
|
return wrapper
|
|
|
|
# --------------------------------------------------------------------------
|
|
# Methods for computing values of standard Appy indexes
|
|
# --------------------------------------------------------------------------
|
|
def UID(self):
|
|
'''Returns the unique identifier for this object.'''
|
|
return self.id
|
|
|
|
def Title(self):
|
|
'''Returns the title for this object.'''
|
|
title = self.getAppyType('title')
|
|
if title: return title.getIndexValue(self)
|
|
return self.id
|
|
|
|
def SortableTitle(self):
|
|
'''Returns the title as must be stored in index "SortableTitle".'''
|
|
return sutils.normalizeText(self.Title())
|
|
|
|
def SearchableText(self):
|
|
'''This method concatenates the content of every field with
|
|
searchable=True for indexing purposes.'''
|
|
res = []
|
|
for field in self.getAllAppyTypes():
|
|
if not field.searchable: continue
|
|
res.append(field.getIndexValue(self, forSearch=True))
|
|
return res
|
|
|
|
def Creator(self):
|
|
'''Who create this object?'''
|
|
return self.creator
|
|
|
|
def Created(self):
|
|
'''When was this object created ?'''
|
|
return self.created
|
|
|
|
def Modified(self):
|
|
'''When was this object last modified ?'''
|
|
if hasattr(self.aq_base, 'modified'): return self.modified
|
|
return self.created
|
|
|
|
def State(self, name=True, initial=False):
|
|
'''Returns information about the current object state. If p_name is
|
|
True, the returned info is the state name. Else, it is the State
|
|
instance. If p_initial is True, instead of returning info about the
|
|
current state, it returns info about the workflow initial state.'''
|
|
wf = self.getWorkflow()
|
|
if initial or not hasattr(self.aq_base, 'workflow_history'):
|
|
# No workflow information is available (yet) on this object, or
|
|
# initial state is asked. In both cases, return info about this
|
|
# initial state.
|
|
res = 'active'
|
|
for elem in dir(wf):
|
|
attr = getattr(wf, elem)
|
|
if (attr.__class__.__name__ == 'State') and attr.initial:
|
|
res = elem
|
|
break
|
|
else:
|
|
# Return info about the current object state
|
|
res = self.workflow_history['appy'][-1]['review_state']
|
|
# Return state name or state definition?
|
|
if name: return res
|
|
else: return getattr(wf, res)
|
|
|
|
def ClassName(self):
|
|
'''Returns the name of the (Zope) class for self.'''
|
|
return self.portal_type
|
|
|
|
def Allowed(self):
|
|
'''Returns the list of roles and users that are allowed to view this
|
|
object. This index value will be used within catalog queries for
|
|
filtering objects the user is allowed to see.'''
|
|
# Get, from the workflow, roles having permission 'read'.
|
|
res = self.getRolesFor('read')
|
|
# Add users or groups having, locally, this role on this object.
|
|
localRoles = getattr(self.aq_base, '__ac_local_roles__', None)
|
|
if not localRoles: return res
|
|
for id, roles in localRoles.iteritems():
|
|
for role in roles:
|
|
if role in res:
|
|
usr = 'user:%s' % id
|
|
if usr not in res: res.append(usr)
|
|
return res
|
|
|
|
def showState(self):
|
|
'''Must I show self's current state ?'''
|
|
stateShow = self.State(name=False).show
|
|
if callable(stateShow):
|
|
return stateShow(self.getWorkflow(), self.appy())
|
|
return stateShow
|
|
|
|
def showTransitions(self, layoutType):
|
|
'''Must we show the buttons/icons for triggering transitions on
|
|
p_layoutType?'''
|
|
# Never show transitions on edit pages.
|
|
if layoutType == 'edit': return
|
|
# Use the default value if self's class does not specify it.
|
|
klass = self.getClass()
|
|
if not hasattr(klass, 'showTransitions'): return (layoutType=='view')
|
|
showValue = klass.showTransitions
|
|
# This value can be a single value or a tuple/list of values.
|
|
if isinstance(showValue, basestring): return layoutType == showValue
|
|
return layoutType in showValue
|
|
|
|
getUrlDefaults = {'page':True, 'nav':True}
|
|
def getUrl(self, base=None, mode='view', inPopup=False, relative=False,
|
|
**kwargs):
|
|
'''Returns an URL for this object.
|
|
* If p_base is None, it will be the base URL for this object
|
|
(ie, Zope self.absolute_url() or an URL this is relative to the
|
|
root site if p_relative is True).
|
|
* p_mode can be "edit", "view" or "raw" (a non-param, base URL)
|
|
* If p_inPopup is True, the link will be opened in the Appy iframe.
|
|
An additional param "popup=1" will be added to URL params, in order
|
|
to tell Appy that the link target will be shown in a popup, in a
|
|
minimalistic way (no portlet...).
|
|
* p_kwargs can store additional parameters to add to the URL.
|
|
In this dict, every value that is a string will be added to the
|
|
URL as-is. Every value that is True will be replaced by the value
|
|
in the request for the corresponding key (if existing; else, the
|
|
param will not be included in the URL at all).'''
|
|
# Define the URL suffix
|
|
suffix = ''
|
|
if mode != 'raw': suffix = '/%s' % mode
|
|
# Define the base URL if omitted
|
|
if not base:
|
|
base = relative and self.absolute_url_path() or self.absolute_url()
|
|
base += suffix
|
|
existingParams = ''
|
|
else:
|
|
existingParams = urllib.splitquery(base)[1]
|
|
# If a raw URL is asked, remove any param and suffix
|
|
if mode == 'raw':
|
|
if '?' in base: base = base[:base.index('?')]
|
|
base = base.rstrip('/')
|
|
for mode in ('view', 'edit'):
|
|
if base.endswith(mode):
|
|
base = base[:-len(mode)].rstrip('/')
|
|
break
|
|
return base
|
|
# Manage default args
|
|
if not kwargs: kwargs = self.getUrlDefaults
|
|
if 'page' not in kwargs: kwargs['page'] = True
|
|
if 'nav' not in kwargs: kwargs['nav'] = True
|
|
# Create URL parameters from kwargs
|
|
params = []
|
|
for name, value in kwargs.iteritems():
|
|
if isinstance(value, basestring):
|
|
params.append('%s=%s' % (name, value))
|
|
elif self.REQUEST.get(name, ''):
|
|
params.append('%s=%s' % (name, self.REQUEST[name]))
|
|
# Manage inPopup
|
|
if inPopup and ('popup=' not in existingParams):
|
|
params.append('popup=1')
|
|
if params:
|
|
params = '&'.join(params)
|
|
if base.find('?') != -1: params = '&' + params
|
|
else: params = '?' + params
|
|
else:
|
|
params = ''
|
|
return '%s%s' % (base, params)
|
|
|
|
def getTool(self):
|
|
'''Returns the application tool.'''
|
|
return self.getPhysicalRoot().config
|
|
|
|
def getProductConfig(self, app=False):
|
|
'''Returns a reference to the config module. If p_app is True, it
|
|
returns the application config.'''
|
|
res = self.__class__.config
|
|
if app: res = res.appConfig
|
|
return res
|
|
|
|
def getParent(self):
|
|
'''If this object is stored within another one, this method returns it.
|
|
Else (if the object is stored directly within the tool or the root
|
|
data folder) it returns None.'''
|
|
parent = self.getParentNode()
|
|
# Not-Managers can't navigate back to the tool
|
|
if (parent.id == 'config') and \
|
|
not self.getTool().getUser().has_role('Manager'):
|
|
return False
|
|
if parent.meta_type not in ('Folder', 'Temporary Folder'): return parent
|
|
|
|
def getShownValue(self, name):
|
|
'''Call field.getShownValue on field named p_name.'''
|
|
field = self.getAppyType('title')
|
|
return field.getShownValue(self, field.getValue(self))
|
|
|
|
def getBreadCrumb(self, inPopup=False):
|
|
'''Gets breadcrumb info about this object and its parents (if it must
|
|
be shown).'''
|
|
# Return an empty breadcrumb if it must not be shown.
|
|
klass = self.getClass()
|
|
if hasattr(klass, 'breadcrumb') and not klass.breadcrumb: return ()
|
|
# Compute the breadcrumb
|
|
title = self.getAppyType('title')
|
|
res = [Object(url=self.getUrl(inPopup=inPopup),
|
|
title=title.getShownValue(self, title.getValue(self)))]
|
|
# In a popup: limit the breadcrumb to the current object.
|
|
if inPopup: return res
|
|
parent = self.getParent()
|
|
if parent: res = parent.getBreadCrumb() + res
|
|
return res
|
|
|
|
def index_html(self):
|
|
'''Base method called when hitting this object.
|
|
- The standard behaviour is to redirect to /view.
|
|
- If a parameter named "do" is present in the request, it is supposed
|
|
to contain the name of a method to call on this object. In this
|
|
case, we call this method and return its result as XML.
|
|
- If method is POST, we consider the request to be XML data, that we
|
|
marshall to Python, and we call the method in param "do" with, as
|
|
arg, this marshalled Python object. While this could sound strange
|
|
to expect a query string containing a param "do" in a HTTP POST,
|
|
the HTTP spec does not prevent to do it.'''
|
|
rq = self.REQUEST
|
|
if (rq.REQUEST_METHOD == 'POST') and rq.QUERY_STRING:
|
|
# A POST method containing XML data.
|
|
rq.args = XmlUnmarshaller().parse(rq.stdin.getvalue())
|
|
# Find the name of the method to call.
|
|
methodName = rq.QUERY_STRING.split('=')[1]
|
|
return self.xml(action=methodName)
|
|
elif rq.has_key('do'):
|
|
# The user wants to call a method on this object and get its result
|
|
# as XML.
|
|
return self.xml(action=rq['do'])
|
|
else:
|
|
# The user wants to consult the view page for this object
|
|
return rq.RESPONSE.redirect(self.getUrl())
|
|
|
|
def getUserLanguage(self):
|
|
'''Gets the language (code) of the current user.'''
|
|
if not hasattr(self, 'REQUEST'):
|
|
return self.getProductConfig().appConfig.languages[0]
|
|
# Return the cached value on the request object if present
|
|
rq = self.REQUEST
|
|
if hasattr(rq, 'userLanguage'): return rq.userLanguage
|
|
# Try the value which comes from the cookie. Indeed, if such a cookie is
|
|
# present, it means that the user has explicitly chosen this language
|
|
# via the language selector.
|
|
if '_ZopeLg' in rq.cookies:
|
|
res = rq.cookies['_ZopeLg']
|
|
else:
|
|
# Try the LANGUAGE key from the request: it corresponds to the
|
|
# language as configured in the user's browser.
|
|
res = rq.get('LANGUAGE', None)
|
|
if not res:
|
|
# Try the HTTP_ACCEPT_LANGUAGE key from the request, which
|
|
# stores language preferences as defined in the user's browser.
|
|
# Several languages can be listed, from most to less wanted.
|
|
res = rq.get('HTTP_ACCEPT_LANGUAGE', None)
|
|
if res:
|
|
if ',' in res: res = res[:res.find(',')]
|
|
if '-' in res: res = res[:res.find('-')]
|
|
else:
|
|
res = self.getProductConfig().appConfig.languages[0]
|
|
# Cache this result
|
|
rq.userLanguage = res
|
|
return res
|
|
|
|
def getLanguageDirection(self, lang):
|
|
'''Determines if p_lang is a LTR or RTL language.'''
|
|
if lang in rtlLanguages: return 'rtl'
|
|
return 'ltr'
|
|
|
|
def formatText(self, text, format='html'):
|
|
'''Produces a representation of p_text into the desired p_format, which
|
|
is "html" by default.'''
|
|
if 'html' in format:
|
|
if format == 'html_from_text': text = cgi.escape(text)
|
|
res = text.replace('\r\n', '<br/>').replace('\n', '<br/>')
|
|
elif format == 'text':
|
|
res = text.replace('<br/>', '\n')
|
|
else:
|
|
res = text
|
|
return res
|
|
|
|
def translate(self, label, mapping={}, domain=None, default=None,
|
|
language=None, format='html', field=None):
|
|
'''Translates a given p_label into p_domain with p_mapping.
|
|
|
|
If p_field is given, p_label does not correspond to a full label
|
|
name, but to a label type linked to p_field: "label", "descr"
|
|
or "help". Indeed, in this case, a specific i18n mapping may be
|
|
available on the field, so we must merge this mapping into
|
|
p_mapping.'''
|
|
cfg = self.getProductConfig()
|
|
if not domain: domain = cfg.PROJECTNAME
|
|
# Get the label name, and the field-specific mapping if any.
|
|
if field:
|
|
if field.type != 'group':
|
|
fieldMapping = field.mapping[label]
|
|
if fieldMapping:
|
|
if callable(fieldMapping):
|
|
fieldMapping = field.callMethod(self, fieldMapping)
|
|
mapping.update(fieldMapping)
|
|
label = getattr(field, '%sId' % label)
|
|
# We will get the translation from a Translation object.
|
|
# In what language must we get the translation?
|
|
if not language: language = self.getUserLanguage()
|
|
tool = self.getTool()
|
|
try:
|
|
translation = getattr(tool, language).appy()
|
|
except AttributeError:
|
|
# We have no translation for this language. Fallback to 'en'.
|
|
translation = getattr(tool, 'en').appy()
|
|
res = getattr(translation, label, '')
|
|
if not res:
|
|
# Fallback to 'en'.
|
|
translation = getattr(tool, 'en').appy()
|
|
res = getattr(translation, label, '')
|
|
# If still no result, put a nice name derived from the label instead of
|
|
# a translated message.
|
|
if not res: res = produceNiceMessage(label.rsplit('_', 1)[-1])
|
|
else:
|
|
# Perform replacements, according to p_format.
|
|
res = self.formatText(res, format)
|
|
# Perform variable replacements
|
|
for name, repl in mapping.iteritems():
|
|
if not isinstance(repl, basestring): repl = str(repl)
|
|
res = res.replace('${%s}' % name, repl)
|
|
return res
|
|
|
|
def getPageLayout(self, layoutType):
|
|
'''Returns the layout corresponding to p_layoutType for p_self.'''
|
|
res = self.wrapperClass.getPageLayouts()[layoutType]
|
|
if isinstance(res, basestring): res = Table(res)
|
|
return res
|
|
|
|
def download(self, name=None):
|
|
'''Downloads the content of the file that is in the File field whose
|
|
name is in the request. This name can also represent an attribute
|
|
storing an image within a rich text field. If p_name is not given, it
|
|
is retrieved from the request.'''
|
|
name = self.REQUEST.get('name')
|
|
if not name: return
|
|
# Security check
|
|
if '_img_' not in name:
|
|
field = self.getAppyType(name)
|
|
else:
|
|
field = self.getAppyType(name.split('_img_')[0])
|
|
self.mayView(field.readPermission, raiseError=True)
|
|
info = getattr(self.aq_base, name, None)
|
|
if info:
|
|
# Write the file in the HTTP response.
|
|
info.writeResponse(self.REQUEST.RESPONSE, self.getDbFolder())
|
|
|
|
def upload(self):
|
|
'''Receives an image uploaded by the user via ckeditor and stores it in
|
|
a special field on this object.'''
|
|
# Get the name of the rich text field for which an image must be stored.
|
|
params = self.REQUEST['QUERY_STRING'].split('&')
|
|
fieldName = params[0].split('=')[1]
|
|
ckNum = params[1].split('=')[1]
|
|
# We will store the image in a field named [fieldName]_img_[nb].
|
|
i = 1
|
|
attrName = '%s_img_%d' % (fieldName, i)
|
|
while True:
|
|
if not hasattr(self.aq_base, attrName):
|
|
break
|
|
else:
|
|
i += 1
|
|
attrName = '%s_img_%d' % (fieldName, i)
|
|
# Store the image. Create a fake File instance for doing the job.
|
|
fakeFile = gen.File(isImage=True)
|
|
fakeFile.name = attrName
|
|
fakeFile.store(self, self.REQUEST['upload'])
|
|
# Return the URL of the image.
|
|
url = '%s/download?name=%s' % (self.absolute_url(), attrName)
|
|
response = self.REQUEST.RESPONSE
|
|
response.setHeader('Content-Type', 'text/html')
|
|
resp = "<script type='text/javascript'>window.parent.CKEDITOR.tools" \
|
|
".callFunction(%s, '%s');</script>" % (ckNum, url)
|
|
response.write(resp)
|
|
|
|
def allows(self, permission, raiseError=False):
|
|
'''Has the logged user p_permission on p_self ?'''
|
|
res = self.getTool().getUser().has_permission(permission, self)
|
|
if not res and raiseError: self.raiseUnauthorized()
|
|
return res
|
|
|
|
def isTemporary(self):
|
|
'''Is this object temporary ?'''
|
|
parent = self.getParentNode()
|
|
if not parent: return # Is probably being created through code
|
|
return parent.getId() == 'temp_folder'
|
|
|
|
def onProcess(self):
|
|
'''This method is a general hook for transfering processing of a request
|
|
to a given field, whose name must be in the request.'''
|
|
return self.getAppyType(self.REQUEST['name']).process(self)
|
|
|
|
def onCall(self):
|
|
'''Calls a specific method on the corresponding wrapper.'''
|
|
self.mayView(raiseError=True)
|
|
method = self.REQUEST['method']
|
|
obj = self.appy()
|
|
return getattr(obj, method)()
|
|
# ------------------------------------------------------------------------------
|