615 lines
30 KiB
Python
Executable file
615 lines
30 KiB
Python
Executable file
# ------------------------------------------------------------------------------
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import re, time
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from appy.gen.utils import sequenceTypes, PageDescr
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from appy.shared.data import countries
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# Default Appy permissions -----------------------------------------------------
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r, w, d = ('read', 'write', 'delete')
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digit = re.compile('[0-9]')
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alpha = re.compile('[a-zA-Z0-9]')
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letter = re.compile('[a-zA-Z]')
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# Descriptor classes used for refining descriptions of elements in types
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# (pages, groups,...) ----------------------------------------------------------
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class Page:
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'''Used for describing a page, its related phase, show condition, etc.'''
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def __init__(self, name, phase='main', show=True):
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self.name = name
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self.phase = phase
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self.show = show
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class Import:
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'''Used for describing the place where to find the data to use for creating
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an object.'''
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def __init__(self, path, columnMethod=None, columnHeaders=(),
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sortMethod=None):
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self.id = 'import'
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self.path = path
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self.columnMethod = columnMethod
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# This method allows to split every element into subElements that can
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# be shown as column values in a table.
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self.columnHeaders = columnHeaders
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self.sortMethod = sortMethod
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class Search:
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'''Used for specifying a search for a given type.'''
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def __init__(self, name, group=None, sortBy='', limit=None, **fields):
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self.name = name
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self.group = group # Searches may be visually grouped in the portlet
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self.sortBy = sortBy
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self.limit = limit
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self.fields = fields # This is a dict whose keys are indexed field
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# names and whose values are search values.
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# ------------------------------------------------------------------------------
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class Type:
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'''Basic abstract class for defining any appy type.'''
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def __init__(self, validator, multiplicity, index, default, optional,
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editDefault, show, page, group, move, indexed, searchable,
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specificReadPermission, specificWritePermission, width,
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height, master, masterValue, focus, historized):
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# The validator restricts which values may be defined. It can be an
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# interval (1,None), a list of string values ['choice1', 'choice2'],
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# a regular expression, a custom function, a Selection instance, etc.
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self.validator = validator
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# Multiplicity is a tuple indicating the minimum and maximum
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# occurrences of values.
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self.multiplicity = multiplicity
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# Type of the index on the values. If you want to represent a simple
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# (ordered) list of values, specify None. If you want to
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# index your values with unordered integers or with other types like
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# strings (thus creating a dictionary of values instead of a list),
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# specify a type specification for the index, like Integer() or
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# String(). Note that this concept of "index" has nothing to do with
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# the concept of "database index" (see fields "indexed" and
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# "searchable" below). self.index is not yet used.
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self.index = index
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# Default value
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self.default = default
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# Is the field optional or not ?
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self.optional = optional
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# May the user configure a default value ?
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self.editDefault = editDefault
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# Must the field be visible or not?
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self.show = show
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# When displaying/editing the whole object, on what page and phase must
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# this field value appear? Default is ('main', 'main'). pageShow
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# indicates if the page must be shown or not.
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self.page, self.phase, self.pageShow = PageDescr.getPageInfo(page, Page)
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# Within self.page, in what group of fields must this field value
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# appear?
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self.group = group
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# The following attribute allows to move a field back to a previous
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# position (useful for content types that inherit from others).
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self.move = move
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# If indexed is True, a database index will be set on the field for
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# fast access.
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self.indexed = indexed
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# If specified "searchable", the field will be added to some global
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# index allowing to perform application-wide, keyword searches.
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self.searchable = searchable
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# Normally, permissions to read or write every attribute in a type are
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# granted if the user has the global permission to read or
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# create/edit instances of the whole type. If you want a given attribute
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# to be protected by specific permissions, set one or the 2 next boolean
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# values to "True".
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self.specificReadPermission = specificReadPermission
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self.specificWritePermission = specificWritePermission
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# Widget width and height
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self.width = width
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self.height = height
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# The behaviour of this field may depend on another, "master" field
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self.master = master
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if master:
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self.master.slaves.append(self)
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# When master has some value(s), there is impact on this field.
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self.masterValue = masterValue
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# If a field must retain attention in a particular way, set focus=True.
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# It will be rendered in a special way.
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self.focus = focus
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# If we must keep track of changes performed on a field, "historized"
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# must be set to True.
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self.historized = historized
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self.id = id(self)
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self.type = self.__class__.__name__
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self.pythonType = None # The True corresponding Python type
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self.slaves = [] # The list of slaves of this field
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self.selfClass = None # The Python class to which this Type definition
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# is linked. This will be computed at runtime.
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def isMultiValued(self):
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'''Does this type definition allow to define multiple values?'''
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res = False
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maxOccurs = self.multiplicity[1]
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if (maxOccurs == None) or (maxOccurs > 1):
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res = True
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return res
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class Integer(Type):
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def __init__(self, validator=None, multiplicity=(0,1), index=None,
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default=None, optional=False, editDefault=False, show=True,
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page='main', group=None, move=0, indexed=False,
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searchable=False, specificReadPermission=False,
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specificWritePermission=False, width=None, height=None,
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master=None, masterValue=None, focus=False, historized=False):
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Type.__init__(self, validator, multiplicity, index, default, optional,
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editDefault, show, page, group, move, indexed, searchable,
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specificReadPermission, specificWritePermission, width,
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height, master, masterValue, focus, historized)
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self.pythonType = long
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class Float(Type):
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def __init__(self, validator=None, multiplicity=(0,1), index=None,
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default=None, optional=False, editDefault=False, show=True,
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page='main', group=None, move=0, indexed=False,
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searchable=False, specificReadPermission=False,
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specificWritePermission=False, width=None, height=None,
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master=None, masterValue=None, focus=False, historized=False):
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Type.__init__(self, validator, multiplicity, index, default, optional,
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editDefault, show, page, group, move, indexed, False,
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specificReadPermission, specificWritePermission, width,
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height, master, masterValue, focus, historized)
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self.pythonType = float
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class String(Type):
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# Some predefined regular expressions that may be used as validators
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c = re.compile
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EMAIL = c('[a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.' \
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'[a-zA-Z][a-zA-Z\.]*[a-zA-Z]')
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ALPHANUMERIC = c('[\w-]+')
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URL = c('(http|https):\/\/[a-z0-9]+([\-\.]{1}[a-z0-9]+)*(\.[a-z]{2,5})?' \
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'(([0-9]{1,5})?\/.*)?')
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# Some predefined functions that may also be used as validators
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@staticmethod
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def _MODULO_97(obj, value, complement=False):
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'''p_value must be a string representing a number, like a bank account.
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this function checks that the 2 last digits are the result of
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computing the modulo 97 of the previous digits. Any non-digit
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character is ignored. If p_complement is True, it does compute the
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complement of modulo 97 instead of modulo 97. p_obj is not used;
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it will be given by the Appy validation machinery, so it must be
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specified as parameter. The function returns True if the check is
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successful.'''
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if not value: return True # Plone calls me erroneously for
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# non-mandatory fields.
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# First, remove any non-digit char
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v = ''
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for c in value:
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if digit.match(c): v += c
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# There must be at least 3 digits for performing the check
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if len(v) < 3: return False
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# Separate the real number from the check digits
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number = int(v[:-2])
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checkNumber = int(v[-2:])
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# Perform the check
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if complement:
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return (97 - (number % 97)) == checkNumber
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else:
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return (number % 97) == checkNumber
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@staticmethod
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def MODULO_97(obj, value): return String._MODULO_97(obj, value)
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@staticmethod
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def MODULO_97_COMPLEMENT(obj, value):
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return String._MODULO_97(obj, value, True)
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@staticmethod
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def IBAN(obj, value):
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'''Checks that p_value corresponds to a valid IBAN number. IBAN stands
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for International Bank Account Number (ISO 13616). If the number is
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valid, the method returns True.'''
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if not value: return True # Plone calls me erroneously for
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# non-mandatory fields.
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# First, remove any non-digit or non-letter char
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v = ''
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for c in value:
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if alpha.match(c): v += c
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# Maximum size is 34 chars
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if (len(v) < 8) or (len(v) > 34): return False
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# 2 first chars must be a valid country code
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if not countries.exists(v[:2].lower()): return False
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# 2 next chars are a control code whose value must be between 0 and 96.
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try:
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code = int(v[2:4])
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if (code < 0) or (code > 96): return False
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except ValueError:
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return False
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# Perform the checksum
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vv = v[4:] + v[:4] # Put the 4 first chars at the end.
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nv = ''
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for c in vv:
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# Convert each letter into a number (A=10, B=11, etc)
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# Ascii code for a is 65, so A=10 if we perform "minus 55"
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if letter.match(c): nv += str(ord(c.upper()) - 55)
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else: nv += c
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return int(nv) % 97 == 1
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@staticmethod
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def BIC(obj, value):
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'''Checks that p_value corresponds to a valid BIC number. BIC stands
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for Bank Identifier Code (ISO 9362). If the number is valid, the
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method returns True.'''
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if not value: return True # Plone calls me erroneously for
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# non-mandatory fields.
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# BIC number must be 8 or 11 chars
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if len(value) not in (8, 11): return False
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# 4 first chars, representing bank name, must be letters
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for c in value[:4]:
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if not letter.match(c): return False
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# 2 next chars must be a valid country code
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if not countries.exists(value[4:6].lower()): return False
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# Last chars represent some location within a country (a city, a
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# province...). They can only be letters or figures.
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for c in value[6:]:
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if not alpha.match(c): return False
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return True
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# Possible values for "format"
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LINE = 0
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TEXT = 1
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XHTML = 2
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PASSWORD = 3
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def __init__(self, validator=None, multiplicity=(0,1), index=None,
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default=None, optional=False, editDefault=False, format=LINE,
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show=True, page='main', group=None, move=0, indexed=False,
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searchable=False, specificReadPermission=False,
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specificWritePermission=False, width=None, height=None,
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master=None, masterValue=None, focus=False, historized=False):
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Type.__init__(self, validator, multiplicity, index, default, optional,
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editDefault, show, page, group, move, indexed, searchable,
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specificReadPermission, specificWritePermission, width,
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height, master, masterValue, focus, historized)
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self.format = format
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self.isSelect = self.isSelection()
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def isSelection(self):
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'''Does the validator of this type definition define a list of values
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into which the user must select one or more values?'''
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res = True
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if type(self.validator) in (list, tuple):
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for elem in self.validator:
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if not isinstance(elem, basestring):
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res = False
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break
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else:
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if not isinstance(self.validator, Selection):
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res = False
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return res
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class Boolean(Type):
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def __init__(self, validator=None, multiplicity=(0,1), index=None,
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default=None, optional=False, editDefault=False, show=True,
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page='main', group=None, move=0, indexed=False,
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searchable=False, specificReadPermission=False,
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specificWritePermission=False, width=None, height=None,
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master=None, masterValue=None, focus=False, historized=False):
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Type.__init__(self, validator, multiplicity, index, default, optional,
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editDefault, show, page, group, move, indexed, searchable,
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specificReadPermission, specificWritePermission, width,
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height, master, masterValue, focus, historized)
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self.pythonType = bool
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class Date(Type):
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# Possible values for "format"
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WITH_HOUR = 0
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WITHOUT_HOUR = 1
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def __init__(self, validator=None, multiplicity=(0,1), index=None,
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default=None, optional=False, editDefault=False,
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format=WITH_HOUR, startYear=time.localtime()[0]-10,
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endYear=time.localtime()[0]+10, show=True, page='main',
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group=None, move=0, indexed=False, searchable=False,
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specificReadPermission=False, specificWritePermission=False,
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width=None, height=None, master=None, masterValue=None,
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focus=False, historized=False):
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Type.__init__(self, validator, multiplicity, index, default, optional,
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editDefault, show, page, group, move, indexed, searchable,
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specificReadPermission, specificWritePermission, width,
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height, master, masterValue, focus, historized)
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self.format = format
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self.startYear = startYear
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self.endYear = endYear
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class File(Type):
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def __init__(self, validator=None, multiplicity=(0,1), index=None,
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default=None, optional=False, editDefault=False, show=True,
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page='main', group=None, move=0, indexed=False,
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searchable=False, specificReadPermission=False,
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specificWritePermission=False, width=None, height=None,
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master=None, masterValue=None, focus=False, historized=False,
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isImage=False):
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Type.__init__(self, validator, multiplicity, index, default, optional,
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editDefault, show, page, group, move, indexed, False,
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specificReadPermission, specificWritePermission, width,
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height, master, masterValue, focus, historized)
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self.isImage = isImage
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class Ref(Type):
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def __init__(self, klass=None, attribute=None, validator=None,
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multiplicity=(0,1), index=None, default=None, optional=False,
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editDefault=False, add=False, link=True, unlink=False,
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back=None, isBack=False, show=True, page='main', group=None,
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showHeaders=False, shownInfo=(), wide=False, select=None,
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maxPerPage=30, move=0, indexed=False, searchable=False,
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specificReadPermission=False, specificWritePermission=False,
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width=None, height=None, master=None, masterValue=None,
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focus=False, historized=False):
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Type.__init__(self, validator, multiplicity, index, default, optional,
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editDefault, show, page, group, move, indexed, False,
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specificReadPermission, specificWritePermission, width,
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height, master, masterValue, focus, historized)
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self.klass = klass
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self.attribute = attribute
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self.add = add # May the user add new objects through this ref ?
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self.link = link # May the user link existing objects through this ref?
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self.unlink = unlink # May the user unlink existing objects?
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self.back = back
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self.isBack = isBack # Should always be False
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self.showHeaders = showHeaders # When displaying a tabular list of
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# referenced objects, must we show the table headers?
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self.shownInfo = shownInfo # When displaying referenced object(s),
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# we will display its title + all other fields whose names are listed
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# in this attribute.
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self.wide = wide # If True, the table of references will be as wide
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# as possible
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self.select = select # If a method is defined here, it will be used to
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# filter the list of available tied objects.
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self.maxPerPage = maxPerPage # Maximum number of referenced objects
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# shown at once.
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class Computed(Type):
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def __init__(self, validator=None, multiplicity=(0,1), index=None,
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default=None, optional=False, editDefault=False, show=True,
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page='main', group=None, move=0, indexed=False,
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searchable=False, specificReadPermission=False,
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specificWritePermission=False, width=None, height=None,
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method=None, plainText=True, master=None, masterValue=None,
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focus=False, historized=False):
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Type.__init__(self, None, multiplicity, index, default, optional,
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False, show, page, group, move, indexed, False,
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specificReadPermission, specificWritePermission, width,
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height, master, masterValue, focus, historized)
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self.method = method # The method used for computing the field value
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self.plainText = plainText # Does field computation produce pain text
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# or XHTML?
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class Action(Type):
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'''An action is a workflow-independent Python method that can be triggered
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by the user on a given gen-class. For example, the custom installation
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procedure of a gen-application is implemented by an action on the custom
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tool class. An action is rendered as a button.'''
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def __init__(self, validator=None, multiplicity=(1,1), index=None,
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default=None, optional=False, editDefault=False, show=True,
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page='main', group=None, move=0, indexed=False,
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searchable=False, specificReadPermission=False,
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specificWritePermission=False, width=None, height=None,
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action=None, result='computation', master=None,
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masterValue=None, focus=False, historized=False):
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Type.__init__(self, None, (0,1), index, default, optional,
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False, show, page, group, move, indexed, False,
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specificReadPermission, specificWritePermission, width,
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height, master, masterValue, focus, historized)
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self.action = action # Can be a single method or a list/tuple of methods
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self.result = result # 'computation' means that the action will simply
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# compute things and redirect the user to the same page, with some
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# status message about execution of the action. 'file' means that the
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# result is the binary content of a file that the user will download.
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def __call__(self, obj):
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'''Calls the action on p_obj.'''
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try:
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if type(self.action) in sequenceTypes:
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# There are multiple Python methods
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res = [True, '']
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for act in self.action:
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actRes = act(obj)
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if type(actRes) in sequenceTypes:
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res[0] = res[0] and actRes[0]
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if self.result == 'file':
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res[1] = res[1] + actRes[1]
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else:
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res[1] = res[1] + '\n' + actRes[1]
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else:
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res[0] = res[0] and actRes
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else:
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# There is only one Python method
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actRes = self.action(obj)
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if type(actRes) in sequenceTypes:
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res = list(actRes)
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else:
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res = [actRes, '']
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# If res is None (ie the user-defined action did not return
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# anything), we consider the action as successfull.
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if res[0] == None: res[0] = True
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except Exception, e:
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res = (False, str(e))
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return res
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class Info(Type):
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'''An info is a field whose purpose is to present information
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(text, html...) to the user.'''
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def __init__(self, validator=None, multiplicity=(1,1), index=None,
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default=None, optional=False, editDefault=False, show=True,
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page='main', group=None, move=0, indexed=False,
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searchable=False, specificReadPermission=False,
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specificWritePermission=False, width=None, height=None,
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master=None, masterValue=None, focus=False, historized=False):
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Type.__init__(self, None, (0,1), index, default, optional,
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False, show, page, group, move, indexed, False,
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specificReadPermission, specificWritePermission, width,
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height, master, masterValue, focus, historized)
|
|
|
|
# Workflow-specific types ------------------------------------------------------
|
|
class State:
|
|
def __init__(self, permissions, initial=False, phase='main', show=True):
|
|
self.permissions = permissions #~{s_permissionName:[s_roleName]}~ This
|
|
# dict gives, for every permission managed by a workflow, the list of
|
|
# roles for which the permission is granted in this state.
|
|
# Standard permissions are 'read', 'write' and 'delete'.
|
|
self.initial = initial
|
|
self.phase = phase
|
|
self.show = show
|
|
def getUsedRoles(self):
|
|
res = set()
|
|
for roleValue in self.permissions.itervalues():
|
|
if isinstance(roleValue, basestring):
|
|
res.add(roleValue)
|
|
elif roleValue:
|
|
for role in roleValue:
|
|
res.add(role)
|
|
return list(res)
|
|
def getTransitions(self, transitions, selfIsFromState=True):
|
|
'''Among p_transitions, returns those whose fromState is p_self (if
|
|
p_selfIsFromState is True) or those whose toState is p_self (if
|
|
p_selfIsFromState is False).'''
|
|
res = []
|
|
for t in transitions:
|
|
if self in t.getStates(selfIsFromState):
|
|
res.append(t)
|
|
return res
|
|
def getPermissions(self):
|
|
'''If you get the permissions mapping through self.permissions, dict
|
|
values may be of different types (a list of roles, a single role or
|
|
None). Iy you call this method, you will always get a list which
|
|
may be empty.'''
|
|
res = {}
|
|
for permission, roleValue in self.permissions.iteritems():
|
|
if roleValue == None:
|
|
res[permission] = []
|
|
elif isinstance(roleValue, basestring):
|
|
res[permission] = [roleValue]
|
|
else:
|
|
res[permission] = roleValue
|
|
return res
|
|
|
|
class Transition:
|
|
def __init__(self, states, condition=True, action=None, notify=None,
|
|
show=True):
|
|
self.states = states # In its simpler form, it is a tuple with 2
|
|
# states: (fromState, toState). But it can also be a tuple of several
|
|
# (fromState, toState) sub-tuples. This way, you may define only 1
|
|
# transition at several places in the state-transition diagram. It may
|
|
# be useful for "undo" transitions, for example.
|
|
self.condition = condition
|
|
self.action = action
|
|
self.notify = notify # If not None, it is a method telling who must be
|
|
# notified by email after the transition has been executed.
|
|
self.show = show # If False, the end user will not be able to trigger
|
|
# the transition. It will only be possible by code.
|
|
|
|
def getUsedRoles(self):
|
|
'''If self.condition is specifies a role.'''
|
|
res = []
|
|
if isinstance(self.condition, basestring):
|
|
res = [self.condition]
|
|
return res
|
|
|
|
def isSingle(self):
|
|
'''If this transitions is only define between 2 states, returns True.
|
|
Else, returns False.'''
|
|
return isinstance(self.states[0], State)
|
|
|
|
def getStates(self, fromStates=True):
|
|
'''Returns the fromState(s) if p_fromStates is True, the toState(s)
|
|
else. If you want to get the states grouped in tuples
|
|
(fromState, toState), simply use self.states.'''
|
|
res = []
|
|
stateIndex = 1
|
|
if fromStates:
|
|
stateIndex = 0
|
|
if self.isSingle():
|
|
res.append(self.states[stateIndex])
|
|
else:
|
|
for states in self.states:
|
|
theState = states[stateIndex]
|
|
if theState not in res:
|
|
res.append(theState)
|
|
return res
|
|
|
|
def hasState(self, state, isFrom):
|
|
'''If p_isFrom is True, this method returns True if p_state is a
|
|
starting state for p_self. If p_isFrom is False, this method returns
|
|
True if p_state is an ending state for p_self.'''
|
|
stateIndex = 1
|
|
if isFrom:
|
|
stateIndex = 0
|
|
if self.isSingle():
|
|
res = state == self.states[stateIndex]
|
|
else:
|
|
res = False
|
|
for states in self.states:
|
|
if states[stateIndex] == state:
|
|
res = True
|
|
break
|
|
return res
|
|
|
|
class Permission:
|
|
'''If you need to define a specific read or write permission of a given
|
|
attribute of an Appy type, you use the specific boolean parameters
|
|
"specificReadPermission" or "specificWritePermission" for this attribute.
|
|
When you want to refer to those specific read or write permissions when
|
|
defining a workflow, for example, you need to use instances of
|
|
"ReadPermission" and "WritePermission", the 2 children classes of this
|
|
class. For example, if you need to refer to write permission of
|
|
attribute "t1" of class A, write: "WritePermission("A.t1") or
|
|
WritePermission("x.y.A.t1") if class A is not in the same module as
|
|
where you instantiate the class.'''
|
|
def __init__(self, fieldDescriptor):
|
|
self.fieldDescriptor = fieldDescriptor
|
|
|
|
class ReadPermission(Permission): pass
|
|
class WritePermission(Permission): pass
|
|
|
|
# ------------------------------------------------------------------------------
|
|
class Selection:
|
|
'''Instances of this class may be given as validator of a String, in order
|
|
to tell Appy that the validator is a selection that will be computed
|
|
dynamically.'''
|
|
pass
|
|
|
|
# ------------------------------------------------------------------------------
|
|
class Tool:
|
|
'''If you want so define a custom tool class, she must inherit from this
|
|
class.'''
|
|
class Flavour:
|
|
'''A flavour represents a given group of configuration options. If you want
|
|
to define a custom flavour class, she must inherit from this class.'''
|
|
def __init__(self, name): self.name = name
|
|
|
|
# ------------------------------------------------------------------------------
|
|
class Config:
|
|
'''If you want to specify some configuration parameters for appy.gen and
|
|
your application, please create an instance of this class and modify its
|
|
attributes. You may put your instance anywhere in your application
|
|
(main package, sub-package, etc).'''
|
|
|
|
# The default Config instance, used if the application does not give one.
|
|
defaultConfig = None
|
|
def getDefault():
|
|
if not Config.defaultConfig:
|
|
Config.defaultConfig = Config()
|
|
return Config.defaultConfig
|
|
getDefault = staticmethod(getDefault)
|
|
|
|
def __init__(self):
|
|
# For every language code that you specify in this list, appy.gen will
|
|
# produce and maintain translation files.
|
|
self.languages = ['en']
|
|
# People having one of these roles will be able to create instances
|
|
# of classes defined in your application.
|
|
self.defaultCreators = ['Manager', 'Owner']
|
|
# If True, the following flag will produce a minimalist Plone, where
|
|
# some actions, portlets or other stuff less relevant for building
|
|
# web applications, are removed or hidden. Using this produces
|
|
# effects on your whole Plone site!
|
|
self.minimalistPlone = False
|
|
# If you want to replace the Plone front page with a page coming from
|
|
# your application, use the following parameter. Setting
|
|
# frontPage = True will replace the Plone front page with a page
|
|
# whose content will come fron i18n label "front_page_text".
|
|
self.frontPage = False
|
|
# If you don't need the portlet that appy.gen has generated for your
|
|
# application, set the following parameter to False.
|
|
self.showPortlet = True
|
|
# Default number of flavours. It will be used for generating i18n labels
|
|
# for classes in every flavour. Indeed, every flavour can name its
|
|
# concepts differently. For example, class Thing in flavour 2 may have
|
|
# i18n label "MyProject_Thing_2".
|
|
self.numberOfFlavours = 2
|
|
# ------------------------------------------------------------------------------
|