250 lines
10 KiB
Python
250 lines
10 KiB
Python
# ------------------------------------------------------------------------------
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import re
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sequenceTypes = (list, tuple)
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# Classes used by edit/view templates for accessing information ----------------
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class Descr:
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'''Abstract class for description classes.'''
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def get(self): return self.__dict__
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class FieldDescr(Descr):
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def __init__(self, atField, appyType, fieldRel):
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self.atField = atField # The corresponding Archetypes field (may be None
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# in the case of backward references)
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self.appyType = appyType # The corresponding Appy type
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self.fieldRel = fieldRel # The field relatonship, needed when the field
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# description is a backward reference.
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if fieldRel:
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self.widgetType = 'backField'
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self.group = appyType['backd']['group']
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self.show = appyType['backd']['show']
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self.page = appyType['backd']['page']
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else:
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self.widgetType = 'field'
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self.group = appyType['group']
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self.show = appyType['show']
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self.page = appyType['page']
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class GroupDescr(Descr):
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def __init__(self, name, cols, page):
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self.name = name
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self.cols = cols # The nb of columns for placing fields into the group
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self.rows = None # The number of rows
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self.page = page
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self.fields = []
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self.widgetType = 'group'
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def computeRows(groupDict):
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'''Computes self.rows. But because at this time the object has already
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been converted to a dict (for being maniputated within ZPTs, this
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method is a static method that takes the dict as arg.'''
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groupDict['rows'] = len(groupDict['fields']) / groupDict['cols']
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if len(groupDict['fields']) % groupDict['cols']:
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groupDict['rows'] += 1
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computeRows = staticmethod(computeRows)
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def getGroupInfo(groupName):
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'''In the group name, the user may optionally specify at the end the
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number of columns for placing fields into the group. This method
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returns the real group name and the number of columns.'''
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res = groupName.rsplit('_', 1)
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if len(res) == 1:
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res.append(1) # Append the default numer of columns
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else:
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try:
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res[1] = int(res[1])
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except ValueError:
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res[1] = 1
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return res
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getGroupInfo = staticmethod(getGroupInfo)
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class PageDescr(Descr):
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def getPageInfo(pageOrName, pageKlass):
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'''pageOrName can be:
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- a string containing the name of the page
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- a string containing <pageName>_<phaseName>
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- a appy.gen.Page instance for a more detailed page description.
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This method returns a normalized tuple containing page-related
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information.'''
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if isinstance(pageOrName, pageKlass):
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res = [pageOrName.name, pageOrName.phase, pageOrName.show]
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else:
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res = pageOrName.rsplit('_', 1)
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if len(res) == 1:
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res.append('main')
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res.append(True)
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return res
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getPageInfo = staticmethod(getPageInfo)
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class PhaseDescr(Descr):
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def __init__(self, name, states, forPlone, ploneObj):
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self.name = name
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self.states = states
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self.forPlone = forPlone
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self.ploneObj = ploneObj
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self.phaseStatus = None
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self.pages = [] # The list of pages in this phase
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self.totalNbOfPhases = None
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def addPage(self, appyType, obj):
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toAdd = appyType['page']
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if (toAdd == 'main') and self.forPlone:
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toAdd = 'default'
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if (toAdd not in self.pages) and \
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obj._appy_showPage(appyType['page'], appyType['pageShow']):
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self.pages.append(toAdd)
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def computeStatus(self):
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'''Compute status of whole phase based on individual status of states
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in this phase. If this phase includes no state, the concept of phase
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is simply used as a tab, and its status depends on the page currently
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shown.'''
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res = 'Current'
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if self.states:
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# Compute status base on states
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res = self.states[0]['stateStatus']
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if len(self.states) > 1:
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for state in self.states[1:]:
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if res != state['stateStatus']:
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res = 'Current'
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break
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else:
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# Compute status based on current page
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rq = self.ploneObj.REQUEST
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if rq.has_key('fieldset'):
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pageName = rq['fieldset']
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if not self.forPlone and (pageName == 'default'):
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pageName = 'main'
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else:
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pageName = rq.get('pageName', 'main')
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if pageName in self.pages:
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res = 'Current'
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else:
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res = 'Deselected'
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self.phaseStatus = res
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class StateDescr(Descr):
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def __init__(self, name, stateStatus):
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self.name = name
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self.stateStatus = stateStatus.capitalize()
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# ------------------------------------------------------------------------------
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upperLetter = re.compile('[A-Z]')
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def produceNiceMessage(msg):
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'''Transforms p_msg into a nice msg.'''
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res = ''
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if msg:
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res = msg[0].upper()
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for c in msg[1:]:
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if c == '_':
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res += ' '
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elif upperLetter.match(c):
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res += ' ' + c.lower()
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else:
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res += c
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return res
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# ------------------------------------------------------------------------------
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class ValidationErrors: pass
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class AppyRequest:
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def __init__(self, zopeRequest, appyObj=None):
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self.zopeRequest = zopeRequest
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self.appyObj = appyObj
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def __str__(self): return '<AppyRequest object>'
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def __repr__(self): return '<AppyRequest object>'
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def __getattr__(self, attr):
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res = None
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if self.appyObj:
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# I can retrieve type information from the ploneObj.
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appyType = self.appyObj.o.getAppyType(attr)
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if appyType['type'] == 'Ref':
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res = self.zopeRequest.get('appy_ref_%s' % attr, None)
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else:
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res = self.zopeRequest.get(attr, None)
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if appyType['pythonType']:
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try:
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exec 'res = %s' % res # bool('False') gives True, so we
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# can't write: res = appyType['pythonType'](res)
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except SyntaxError, se:
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# Can happen when for example, an Integer value is empty
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res = None
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else:
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res = self.zopeRequest.get(attr, None)
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return res
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# ------------------------------------------------------------------------------
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class SomeObjects:
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'''Represents a bunch of objects retrieved from a reference or a query in
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portal_catalog.'''
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def __init__(self, objects=None, batchSize=None, startNumber=0,
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noSecurity=False):
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self.objects = objects or [] # The objects
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self.totalNumber = len(self.objects) # self.objects may only represent a
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# part of all available objects.
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self.batchSize = batchSize or self.totalNumber # The max length of
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# self.objects.
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self.startNumber = startNumber # The index of first object in
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# self.objects in the whole list.
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self.noSecurity = noSecurity
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def brainsToObjects(self):
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'''self.objects has been populated from brains from the portal_catalog,
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not from True objects. This method turns them (or some of them
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depending on batchSize and startNumber) into real objects.
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If self.noSecurity is True, it gets the objects even if the logged
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user does not have the right to get them.'''
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start = self.startNumber
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brains = self.objects[start:start + self.batchSize]
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if self.noSecurity: getMethod = '_unrestrictedGetObject'
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else: getMethod = 'getObject'
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self.objects = [getattr(b, getMethod)() for b in brains]
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# ------------------------------------------------------------------------------
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class Keywords:
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'''This class allows to handle keywords that a user enters and that will be
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used as basis for performing requests in a Zope ZCTextIndex.'''
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toRemove = '?-+*()'
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def __init__(self, keywords, operator='AND'):
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# Clean the p_keywords that the user has entered.
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words = keywords.strip()
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if words == '*': words = ''
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for c in self.toRemove: words = words.replace(c, ' ')
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self.keywords = words.split()
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# Store the operator to apply to the keywords (AND or OR)
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self.operator = operator
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def merge(self, other, append=False):
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'''Merges our keywords with those from p_other. If p_append is True,
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p_other keywords are appended at the end; else, keywords are appended
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at the begin.'''
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for word in other.keywords:
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if word not in self.keywords:
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if append:
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self.keywords.append(word)
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else:
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self.keywords.insert(0, word)
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def get(self):
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'''Returns the keywords as needed by the ZCTextIndex.'''
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if self.keywords:
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op = ' %s ' % self.operator
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return op.join(self.keywords)+'*'
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return ''
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# ------------------------------------------------------------------------------
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class FakeBrain:
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'''This class behaves like a brain retrieved from a query to a ZCatalog. It
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is used for representing a fake brain that was generated from a search in
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a distant portal_catalog.'''
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Creator = None
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created = None
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modified = None
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review_state = None
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def has_key(self, key): return hasattr(self, key)
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def getPath(self): return self.path
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def getURL(self, relative=0): return self.url
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def _unrestrictedGetObject(self): return self
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def pretty_title_or_id(self): return self.Title
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def getObject(self, REQUEST=None): return self
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def getRID(self): return self.url
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# ------------------------------------------------------------------------------
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