def _cast(self, value):
if value is None or value == '': return None
if isinstance( value, reference ): return value
if isinstance( value, self.referred_table ):
return reference( value.id, self.referred_table )
#value is an id that refers to an item in a table
ret = reference( value, self.referred_table )
return ret
def _cast(self, value):
if value is None or value == '': return None
if isinstance(value, reference): return value
if isinstance(value, self.referred_table):
return reference(value.id, self.referred_table)
#value is an id that refers to an item in a table
ret = reference(value, self.referred_table)
return ret
def _cast(self, value):
if not value: return None
if isinstance( value, reference ): return value
if isinstance( value, self.referred_table ):
return reference( value.id, self.referred_table )
#value is the id of a row in the referred table
if isinstance(value, int) or isinstance(value, long) or isinstance(value, basestring):
return reference( value, self.referred_table )
raise ValueError, "%s(%s)" % (type(value), value)
def _cast(self, value):
if value is None: return None
if isinstance( value, reference ):
return value
if isinstance( value, basestring ):
return self._reference_from_str( value )
if isinstance( value, Table ):
return self._cast( (value.__class__, value.id) )
if isinstance( value, tuple):
if len(value) != 2:
raise ValueError, "don't know how to cast %s to a reference" % ( value, )
table, id = value
if isinstance(table, basestring):
table = self.tableRegistry.get( table )
return reference( id, table )
if not isinstance(value, reference):
raise ValueError, "don't know how to cast %s to a reference" % (value,)
return reference
def _cast(self, value):
if value is None: return None
if isinstance(value, reference):
return value
if isinstance(value, basestring):
return self._reference_from_str(value)
if isinstance(value, Table):
return self._cast((value.__class__, value.id))
if isinstance(value, tuple):
if len(value) != 2:
raise ValueError, "don't know how to cast %s to a reference" % (
value, )
table, id = value
if isinstance(table, basestring):
table = self.tableRegistry.get(table)
return reference(id, table)
if not isinstance(value, reference):
raise ValueError, "don't know how to cast %s to a reference" % (
value, )
return reference
