appypod-rattail/gen/model.py

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'''This file contains basic classes that will be added into any user
application for creating the basic structure of the application "Tool" which
is the set of web pages used for configuring the application.'''
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# ------------------------------------------------------------------------------
import types
import appy.gen as gen
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# Prototypical instances of every type -----------------------------------------
class Protos:
protos = {}
# List of attributes that can't be given to a Type constructor
notInit = ('id', 'type', 'pythonType', 'slaves', 'isSelect', 'hasLabel',
'hasDescr', 'hasHelp', 'required', 'filterable', 'validable',
'backd', 'isBack', 'sync', 'pageName', 'shownInfoWidths',
'masterName')
@classmethod
def get(self, appyType):
'''Returns a prototype instance for p_appyType.'''
className = appyType.__class__.__name__
isString = (className == 'String')
if isString:
# For Strings, we create one prototype per format, because default
# values may change according to format.
className += str(appyType.format)
if className in self.protos: return self.protos[className]
# The prototype does not exist yet: create it
if isString:
proto = appyType.__class__(format=appyType.format)
# Now, we fake to be able to detect default values
proto.format = 0
else:
proto = appyType.__class__()
self.protos[className] = proto
return proto
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# ------------------------------------------------------------------------------
class ModelClass:
'''This class is the abstract class of all predefined application classes
used in the Appy model: Tool, User, etc. All methods and attributes of
those classes are part of the Appy machinery and are prefixed with _appy_
in order to avoid name conflicts with user-defined parts of the
application model.'''
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_appy_attributes = [] # We need to keep track of attributes order.
folder = False
@classmethod
def _appy_getTypeBody(klass, appyType, wrapperName):
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'''This method returns the code declaration for p_appyType.'''
typeArgs = ''
proto = Protos.get(appyType)
for name, value in appyType.__dict__.iteritems():
# Some attrs can't be given to the constructor
if name in Protos.notInit: continue
# If the given value corresponds to the default value, don't give it
if value == getattr(proto, name): continue
if name == 'layouts':
# For Tool attributes we do not copy layout info. Indeed, most
# fields added to the Tool are config-related attributes whose
# layouts must be standard.
if klass.__name__ == 'Tool': continue
layouts = appyType.getInputLayouts()
# For the Translation class that has potentially thousands of
# attributes, the most used layout is cached in a global var in
# named "tfw" in wrappers.py.
if (klass.__name__ == 'Translation') and \
(layouts == '{"edit":"f","cell":"f","view":"f",}'):
value = 'tfw'
else:
value = appyType.getInputLayouts()
elif (name == 'klass') and value and (value == klass):
# This is a auto-Ref (a Ref that references the klass itself).
# At this time, we can't reference the class that is still being
# defined. So we initialize it to None. The post-init of the
# field must be done manually in wrappers.py.
value = 'None'
elif isinstance(value, basestring):
value = '"%s"' % value
elif isinstance(value, gen.Ref):
if not value.isBack: continue
value = klass._appy_getTypeBody(value, wrapperName)
elif type(value) == type(ModelClass):
moduleName = value.__module__
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if moduleName.startswith('appy.gen'):
value = value.__name__
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else:
value = '%s.%s' % (moduleName, value.__name__)
elif isinstance(value, gen.Selection):
value = 'Selection("%s")' % value.methodName
elif isinstance(value, gen.Group):
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value = 'Grp("%s")' % value.name
elif isinstance(value, gen.Page):
value = 'pges["%s"]' % value.name
elif callable(value):
className = wrapperName
if (appyType.type == 'Ref') and appyType.isBack:
className = value.im_class.__name__
value = '%s.%s' % (className, value.__name__)
typeArgs += '%s=%s,' % (name, value)
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return '%s(%s)' % (appyType.__class__.__name__, typeArgs)
@classmethod
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def _appy_getBody(klass):
'''This method returns the code declaration of this class. We will dump
this in wrappers.py in the Zope product.'''
className = klass.__name__
# Determine the name of the class and its wrapper. Because so much
# attributes can be generated on a TranslationWrapper, shortcutting it
# to 'TW' may reduce the generated file from several kilobytes.
if className == 'Translation': wrapperName = 'WT'
else: wrapperName = 'W%s' % className
res = 'class %s(%s):\n' % (className, wrapperName)
# Tool must be folderish
if klass.folder: res += ' folder=True\n'
# First, scan all attributes, determine all used pages and create a
# dict with it. It will prevent us from creating a new Page instance
# for every field.
pages = {}
layouts = []
for name in klass._appy_attributes:
exec 'appyType = klass.%s' % name
if appyType.page.name not in pages:
pages[appyType.page.name] = appyType.page
res += ' pges = {'
for page in pages.itervalues():
# Determine page show
pageShow = page.show
if isinstance(pageShow, basestring): pageShow='"%s"' % pageShow
elif callable(pageShow):
pageShow = '%s.%s' % (wrapperName, pageShow.__name__)
res += '"%s":Pge("%s", show=%s),'% (page.name, page.name, pageShow)
res += '}\n'
# Secondly, dump every attribute
for name in klass._appy_attributes:
exec 'appyType = klass.%s' % name
typeBody = klass._appy_getTypeBody(appyType, wrapperName)
res += ' %s=%s\n' % (name, typeBody)
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return res
# The User class ---------------------------------------------------------------
class User(ModelClass):
# In a ModelClass we need to declare attributes in the following list.
_appy_attributes = ['title', 'name', 'firstName', 'login', 'password1',
'password2', 'email', 'roles']
# All methods defined below are fake. Real versions are in the wrapper.
title = gen.String(show=False, indexed=True)
gm = {'group': 'main', 'width': 25}
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def showName(self): pass
name = gen.String(show=showName, **gm)
firstName = gen.String(show=showName, **gm)
def showEmail(self): pass
email = gen.String(show=showEmail)
gm['multiplicity'] = (1,1)
def showLogin(self): pass
def validateLogin(self): pass
login = gen.String(show=showLogin, validator=validateLogin,
indexed=True, **gm)
def showPassword(self): pass
def validatePassword(self): pass
password1 = gen.String(format=gen.String.PASSWORD, show=showPassword,
validator=validatePassword, **gm)
password2 = gen.String(format=gen.String.PASSWORD, show=showPassword, **gm)
gm['multiplicity'] = (0, None)
def showRoles(self): pass
roles = gen.String(show=showRoles, indexed=True,
validator=gen.Selection('getGrantableRoles'), **gm)
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# The Group class --------------------------------------------------------------
class Group(ModelClass):
# In a ModelClass we need to declare attributes in the following list.
_appy_attributes = ['title', 'login', 'roles', 'users']
# All methods defined below are fake. Real versions are in the wrapper.
m = {'group': 'main', 'width': 25, 'indexed': True}
title = gen.String(multiplicity=(1,1), **m)
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def showLogin(self): pass
def validateLogin(self): pass
login = gen.String(show=showLogin, validator=validateLogin,
multiplicity=(1,1), **m)
roles = gen.String(validator=gen.Selection('getGrantableRoles'),
multiplicity=(0,None), **m)
users = gen.Ref(User, multiplicity=(0,None), add=False, link=True,
back=gen.Ref(attribute='groups', show=User.showRoles,
multiplicity=(0,None)),
showHeaders=True, shownInfo=('title', 'login'))
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# The Translation class --------------------------------------------------------
class Translation(ModelClass):
_appy_attributes = ['po', 'title']
# All methods defined below are fake. Real versions are in the wrapper.
def getPoFile(self): pass
po = gen.Action(action=getPoFile, page=gen.Page('actions', show='view'),
result='filetmp')
title = gen.String(show=False, indexed=True)
def label(self): pass
def show(self, name): pass
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# The Page class ---------------------------------------------------------------
class Page(ModelClass):
_appy_attributes = ['title', 'content', 'pages']
folder = True
title = gen.String(show='edit', indexed=True)
content = gen.String(format=gen.String.XHTML, layouts='f', richText=True)
# Pages can contain other pages.
def showSubPages(self): pass
pages = gen.Ref(None, multiplicity=(0,None), add=True, link=False,
back=gen.Ref(attribute='parent', show=False),
show=showSubPages, navigable=True)
Page.pages.klass = Page
setattr(Page, Page.pages.back.attribute, Page.pages.back)
# The Tool class ---------------------------------------------------------------
# Prefixes of the fields generated on the Tool.
toolFieldPrefixes = ('defaultValue', 'podTemplate', 'formats', 'resultColumns',
'enableAdvancedSearch', 'numberOfSearchColumns',
'searchFields', 'optionalFields', 'showWorkflow',
'showAllStatesInPhase')
defaultToolFields = ('title', 'mailHost', 'mailEnabled', 'mailFrom',
'appyVersion', 'dateFormat', 'hourFormat', 'users',
'connectedUsers', 'groups', 'translations',
'loadTranslationsAtStartup', 'pages', 'unoEnabledPython',
'openOfficePort', 'numberOfResultsPerPage')
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class Tool(ModelClass):
# In a ModelClass we need to declare attributes in the following list.
_appy_attributes = list(defaultToolFields)
folder = True
# Tool attributes
def isManager(self): pass
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def isManagerEdit(self): pass
lf = {'layouts':'f'}
title = gen.String(show=False, page=gen.Page('main', show=False), **lf)
mailHost = gen.String(default='localhost:25', **lf)
mailEnabled = gen.Boolean(default=False, **lf)
mailFrom = gen.String(default='info@appyframework.org', **lf)
appyVersion = gen.String(**lf)
dateFormat = gen.String(default='%d/%m/%Y', **lf)
hourFormat = gen.String(default='%H:%M', **lf)
# Ref(User) will maybe be transformed into Ref(CustomUserClass).
userPage = gen.Page('users', show=isManager)
users = gen.Ref(User, multiplicity=(0,None), add=True, link=False,
back=gen.Ref(attribute='toTool', show=False), page=userPage,
queryable=True, queryFields=('title', 'login'),
showHeaders=True, shownInfo=('title', 'login', 'roles'))
def computeConnectedUsers(self): pass
connectedUsers = gen.Computed(method=computeConnectedUsers, page=userPage,
plainText=False)
groups = gen.Ref(Group, multiplicity=(0,None), add=True, link=False,
back=gen.Ref(attribute='toTool2', show=False),
page=gen.Page('groups', show=isManager),
queryable=True, queryFields=('title', 'login'),
showHeaders=True, shownInfo=('title', 'login', 'roles'))
pt = gen.Page('translations', show=isManager)
translations = gen.Ref(Translation, multiplicity=(0,None), add=False,
link=False, show='view', page=pt,
back=gen.Ref(attribute='trToTool', show=False))
loadTranslationsAtStartup = gen.Boolean(default=True, show=False, page=pt)
pages = gen.Ref(Page, multiplicity=(0,None), add=True, link=False,
show='view', back=gen.Ref(attribute='toTool3', show=False),
page=gen.Page('pages', show=isManager))
# Document generation page
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dgp = {'page': gen.Page('documentGeneration', show=isManagerEdit)}
def validPythonWithUno(self, value): pass # Real method in the wrapper
unoEnabledPython = gen.String(show=False,validator=validPythonWithUno,**dgp)
openOfficePort = gen.Integer(default=2002, show=False, **dgp)
# User interface page
numberOfResultsPerPage = gen.Integer(default=30,
page=gen.Page('userInterface', show=False))
@classmethod
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def _appy_clean(klass):
toClean = []
for k, v in klass.__dict__.iteritems():
if not k.startswith('__') and (not k.startswith('_appy_')):
if k not in defaultToolFields:
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toClean.append(k)
for k in toClean:
exec 'del klass.%s' % k
klass._appy_attributes = list(defaultToolFields)
klass.folder = True
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# ------------------------------------------------------------------------------