227 lines
11 KiB
Python
227 lines
11 KiB
Python
'''This file contains basic classes that will be added into any user
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application for creating the basic structure of the application "Tool" which
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is the set of web pages used for configuring the application. The "Tool" is
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available to administrators under the standard Plone link "site setup". Plone
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itself is shipped with several tools used for conguring the various parts of
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Plone (content types, catalogs, workflows, etc.)'''
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# ------------------------------------------------------------------------------
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import copy, types
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from appy.gen import Type, Integer, String, File, Ref, Boolean
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# ------------------------------------------------------------------------------
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class ModelClass:
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'''This class is the abstract class of all predefined application classes
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used in the Appy model: Tool, Flavour, PodTemplate, etc. All methods and
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attributes of those classes are part of the Appy machinery and are
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prefixed with _appy_ in order to avoid name conflicts with user-defined
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parts of the application model.'''
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_appy_attributes = [] # We need to keep track of attributes order.
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_appy_notinit = ('id', 'type', 'pythonType', 'slaves', 'selfClass',
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'phase', 'pageShow') # When creating a new instance of a
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# ModelClass, those attributes must not be given in the
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# constructor.
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def _appy_addField(klass, fieldName, fieldType, classDescr):
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exec "klass.%s = fieldType" % fieldName
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klass._appy_attributes.append(fieldName)
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if hasattr(klass, '_appy_classes'):
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klass._appy_classes[fieldName] = classDescr.name
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_appy_addField = classmethod(_appy_addField)
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def _appy_getTypeBody(klass, appyType):
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'''This method returns the code declaration for p_appyType.'''
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typeArgs = ''
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for attrName, attrValue in appyType.__dict__.iteritems():
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if attrName in ModelClass._appy_notinit:
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continue
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if isinstance(attrValue, basestring):
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attrValue = '"%s"' % attrValue
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elif isinstance(attrValue, Type):
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attrValue = klass._appy_getTypeBody(attrValue)
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elif type(attrValue) == type(ModelClass):
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moduleName = attrValue.__module__
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if moduleName.startswith('appy.gen'):
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attrValue = attrValue.__name__
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else:
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attrValue = '%s.%s' % (moduleName, attrValue.__name__)
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typeArgs += '%s=%s,' % (attrName, attrValue)
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return '%s(%s)' % (appyType.__class__.__name__, typeArgs)
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_appy_getTypeBody = classmethod(_appy_getTypeBody)
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def _appy_getBody(klass):
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'''This method returns the code declaration of this class. We will dump
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this in appyWrappers.py in the resulting product.'''
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res = ''
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for attrName in klass._appy_attributes:
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exec 'appyType = klass.%s' % attrName
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res += ' %s=%s\n' % (attrName, klass._appy_getTypeBody(appyType))
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return res
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_appy_getBody = classmethod(_appy_getBody)
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class PodTemplate(ModelClass):
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description = String(format=String.TEXT)
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podTemplate = File(multiplicity=(1,1))
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podFormat = String(validator=['odt', 'pdf', 'rtf', 'doc'],
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multiplicity=(1,1), default='odt')
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phase = String(default='main')
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_appy_attributes = ['description', 'podTemplate', 'podFormat', 'phase']
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defaultFlavourAttrs = ('number', 'enableNotifications')
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flavourAttributePrefixes = ('optionalFieldsFor', 'defaultValueFor',
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'podTemplatesFor', 'podMaxShownTemplatesFor', 'resultColumnsFor',
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'showWorkflowFor', 'showWorkflowCommentFieldFor', 'showAllStatesInPhaseFor')
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# Attribute prefixes of the fields generated on the Flavour for configuring
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# the application classes.
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class Flavour(ModelClass):
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'''For every application, the Flavour may be different (it depends on the
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fields declared as optional, etc). Instead of creating a new way to
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generate the Archetypes Flavour class, we create a silly
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FlavourStub instance and we will use the standard Archetypes
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generator that generates classes from the application to generate the
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flavour class.'''
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number = Integer(default=1, show=False)
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enableNotifications = Boolean(default=True, page='notifications')
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_appy_classes = {} # ~{s_attributeName: s_className}~
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# We need to remember the original classes related to the flavour attributes
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_appy_attributes = list(defaultFlavourAttrs)
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def _appy_clean(klass):
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toClean = []
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for k, v in klass.__dict__.iteritems():
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if not k.startswith('__') and (not k.startswith('_appy_')):
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if k not in defaultFlavourAttrs:
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toClean.append(k)
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for k in toClean:
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exec 'del klass.%s' % k
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klass._appy_attributes = list(defaultFlavourAttrs)
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klass._appy_classes = {}
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_appy_clean = classmethod(_appy_clean)
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def _appy_copyField(klass, appyType):
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'''From a given p_appyType, produce a type definition suitable for
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storing the default value for this field.'''
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res = copy.copy(appyType)
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res.editDefault = False
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res.optional = False
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res.show = True
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res.phase = 'main'
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res.specificReadPermission = False
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res.specificWritePermission = False
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res.multiplicity = (0, appyType.multiplicity[1])
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if type(res.validator) == types.FunctionType:
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# We will not be able to call this function from the flavour.
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res.validator = None
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if isinstance(appyType, Ref):
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res.link = True
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res.add = False
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res.back = copy.copy(appyType.back)
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res.back.attribute += 'DefaultValue'
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res.back.show = False
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res.select = None # Not callable from flavour
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return res
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_appy_copyField = classmethod(_appy_copyField)
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def _appy_addOptionalField(klass, fieldDescr):
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className = fieldDescr.classDescr.name
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fieldName = 'optionalFieldsFor%s' % className
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fieldType = getattr(klass, fieldName, None)
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if not fieldType:
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fieldType = String(multiplicity=(0,None))
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fieldType.validator = []
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klass._appy_addField(fieldName, fieldType, fieldDescr.classDescr)
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fieldType.validator.append(fieldDescr.fieldName)
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fieldType.page = 'data'
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fieldType.group = fieldDescr.classDescr.klass.__name__
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_appy_addOptionalField = classmethod(_appy_addOptionalField)
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def _appy_addDefaultField(klass, fieldDescr):
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className = fieldDescr.classDescr.name
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fieldName = 'defaultValueFor%s_%s' % (className, fieldDescr.fieldName)
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fieldType = klass._appy_copyField(fieldDescr.appyType)
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klass._appy_addField(fieldName, fieldType, fieldDescr.classDescr)
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fieldType.page = 'data'
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fieldType.group = fieldDescr.classDescr.klass.__name__
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_appy_addDefaultField = classmethod(_appy_addDefaultField)
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def _appy_addPodField(klass, classDescr):
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'''Adds a POD field to the flavour and also an integer field that will
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determine the maximum number of documents to show at once on consult
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views. If this number is reached, a list is displayed.'''
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# First, add the POD field that will hold PodTemplates.
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fieldType = Ref(PodTemplate, multiplicity=(0,None), add=True,
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link=False, back = Ref(attribute='flavour'),
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page="documentGeneration",
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group=classDescr.klass.__name__)
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fieldName = 'podTemplatesFor%s' % classDescr.name
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klass._appy_addField(fieldName, fieldType, classDescr)
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# Then, add the integer field
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fieldType = Integer(default=1, page='userInterface',
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group=classDescr.klass.__name__)
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fieldName = 'podMaxShownTemplatesFor%s' % classDescr.name
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klass._appy_addField(fieldName, fieldType, classDescr)
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classDescr.flavourFieldsToPropagate.append(
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('podMaxShownTemplatesFor%s', copy.copy(fieldType)) )
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_appy_addPodField = classmethod(_appy_addPodField)
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def _appy_addQueryResultColumns(klass, classDescr):
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className = classDescr.name
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fieldName = 'resultColumnsFor%s' % className
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attrNames = [a[0] for a in classDescr.getOrderedAppyAttributes()]
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attrNames.append('workflowState') # Object state from workflow
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if 'title' in attrNames:
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attrNames.remove('title') # Included by default.
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fieldType = String(multiplicity=(0,None), validator=attrNames,
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page='userInterface',
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group=classDescr.klass.__name__)
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klass._appy_addField(fieldName, fieldType, classDescr)
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_appy_addQueryResultColumns = classmethod(_appy_addQueryResultColumns)
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def _appy_addWorkflowFields(klass, classDescr):
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'''Adds, for a given p_classDescr, the workflow-related fields.'''
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className = classDescr.name
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groupName = classDescr.klass.__name__
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# Adds a field allowing to show/hide completely any workflow-related
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# information for a given class.
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defaultValue = False
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if classDescr.isRoot() or issubclass(classDescr.klass, ModelClass):
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defaultValue = True
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fieldName = 'showWorkflowFor%s' % className
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fieldType = Boolean(default=defaultValue, page='userInterface',
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group=groupName)
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klass._appy_addField(fieldName, fieldType, classDescr)
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# Adds the boolean field for showing or not the field "enter comments".
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fieldName = 'showWorkflowCommentFieldFor%s' % className
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fieldType = Boolean(default=defaultValue, page='userInterface',
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group=groupName)
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klass._appy_addField(fieldName, fieldType, classDescr)
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# Adds the boolean field for showing all states in current state or not.
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# If this boolean is True but the current phase counts only one state,
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# we will not show the state at all: the fact of knowing in what phase
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# we are is sufficient. If this boolean is False, we simply show the
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# current state.
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defaultValue = False
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if len(classDescr.getPhases()) > 1:
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defaultValue = True
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fieldName = 'showAllStatesInPhaseFor%s' % className
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fieldType = Boolean(default=defaultValue, page='userInterface',
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group=groupName)
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klass._appy_addField(fieldName, fieldType, classDescr)
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_appy_addWorkflowFields = classmethod(_appy_addWorkflowFields)
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class Tool(ModelClass):
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flavours = Ref(None, multiplicity=(1,None), add=True, link=False,
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back=Ref(attribute='tool'))
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# First arg is None because we don't know yet if it will link
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# to the predefined Flavour class or a custom class defined
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# in the application.
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unoEnabledPython = String(group="connectionToOpenOffice")
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openOfficePort = Integer(default=2002, group="connectionToOpenOffice")
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numberOfResultsPerPage = Integer(default=30)
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listBoxesMaximumWidth = Integer(default=100)
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_appy_attributes = ['flavours', 'unoEnabledPython', 'openOfficePort',
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'numberOfResultsPerPage', 'listBoxesMaximumWidth']
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# ------------------------------------------------------------------------------
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