class ViewModel(object):
__metaclass__ = ViewModelMeta
def __init__(self, **kwargs):
self._fieldindex = OrderedDict() # mapping tussen ids en veldnamen
self._fltr = None
# voor elke instantie van ViewModel krijgen de
# veldnamen een uniek id
for fieldname, classfield in self._fieldattrs.items():
idx = counter.inc()
field = classfield.__class__(name=fieldname, config=classfield)
field._idx = idx
field.set_model(self)
object.__setattr__(self, fieldname, field)
self._fieldindex[idx] = fieldname
def __getattribute__(self, name):
if name.startswith("__"):
return object.__getattribute__(self, name)
attr = object.__getattribute__(self, name)
if attr:
if isinstance(attr, ViewField):
return attr.get_value()
else:
return attr
return object.__getattribute__(self, name)
def __setattr__(self, name, value):
attr = self.__dict__.get(name)
if attr and isinstance(attr, ViewField):
attr.set_value(value)
else:
object.__setattr__(self, name, value)
def get_field(self, id_or_name):
if str(id_or_name).isdigit():
field_id = int(id_or_name)
if field_id in self._fieldindex.keys():
return object.__getattribute__(self, self._fieldindex[field_id])
for fieldname, fieldtype in self.get_field_attributes().items():
item = getattr(self, fieldname, None)
if item:
if isinstance(fieldtype, OneToOne):
field = item.get_field(id_or_name)
if field:
return field
elif isinstance(fieldtype, OneToMany):
for subitem in item:
field = subitem.get_field(id_or_name)
if field:
return field
else:
field = self.__dict__.get(id_or_name)
if field:
return field
def __del__(self):
pass
def save(self):
"""
Wijzigingen doorvoeren in de database
"""
def get_value_by_id(self, field_id):
if field_id in self._fieldindex.keys():
return getattr(self, self._fieldindex[field_id], None)
for fieldname, fieldtype in self.get_field_attributes().items():
item = getattr(self, fieldname, None)
if item:
if isinstance(fieldtype, OneToOne):
value = item.get_value_by_id(field_id)
if value:
return value
elif isinstance(fieldtype, OneToMany):
for subitem in item:
value = subitem.get_value_by_id(field_id)
if value:
return value
def set_value_by_id(self, field_id, value):
if field_id in self._fieldindex.keys():
setattr(self, self._fieldindex[field_id], value)
return True
for fieldname, fieldtype in self.get_field_attributes().items():
item = getattr(self, fieldname, None)
if item:
if isinstance(fieldtype, OneToOne):
result = item.set_value_by_id(field_id, value)
if result:
return result
elif isinstance(fieldtype, OneToMany):
for subitem in item:
result = subitem.set_value_by_id(field_id, value)
if result:
return result
return False
def get_field_attributes(self):
"""
Geeft veldattributen terug in de juiste volgorde: de volgorde
waarin ze zijn gedeclareerd.
"""
return self._fieldattrs
def undo(self):
self.select(fltr=self._fltr)
class ViewModel(object):
__metaclass__ = ViewModelMeta
def __init__(self, **kwargs):
self._fieldindex = OrderedDict() # mapping tussen ids en veldnamen
self._fltr = None
# voor elke instantie van ViewModel krijgen de
# veldnamen een uniek id
for fieldname, classfield in self._fieldattrs.items():
idx = counter.inc()
field = classfield.__class__(name=fieldname, config=classfield)
field._idx = idx
field.set_model(self)
object.__setattr__(self, fieldname, field)
self._fieldindex[idx] = fieldname
def __getattribute__(self, name):
if name.startswith("__"):
return object.__getattribute__(self, name)
attr = object.__getattribute__(self, name)
if attr:
if isinstance(attr, ViewField):
return attr.get_value()
else:
return attr
return object.__getattribute__(self, name)
def __setattr__(self, name, value):
attr = self.__dict__.get(name)
if attr and isinstance(attr, ViewField):
attr.set_value(value)
else:
object.__setattr__(self, name, value)
def get_field(self, id_or_name):
if str(id_or_name).isdigit():
field_id = int(id_or_name)
if field_id in self._fieldindex.keys():
return object.__getattribute__(self,
self._fieldindex[field_id])
for fieldname, fieldtype in self.get_field_attributes().items():
item = getattr(self, fieldname, None)
if item:
if isinstance(fieldtype, OneToOne):
field = item.get_field(id_or_name)
if field:
return field
elif isinstance(fieldtype, OneToMany):
for subitem in item:
field = subitem.get_field(id_or_name)
if field:
return field
else:
field = self.__dict__.get(id_or_name)
if field:
return field
def __del__(self):
pass
def save(self):
"""
Wijzigingen doorvoeren in de database
"""
def get_value_by_id(self, field_id):
if field_id in self._fieldindex.keys():
return getattr(self, self._fieldindex[field_id], None)
for fieldname, fieldtype in self.get_field_attributes().items():
item = getattr(self, fieldname, None)
if item:
if isinstance(fieldtype, OneToOne):
value = item.get_value_by_id(field_id)
if value:
return value
elif isinstance(fieldtype, OneToMany):
for subitem in item:
value = subitem.get_value_by_id(field_id)
if value:
return value
def set_value_by_id(self, field_id, value):
if field_id in self._fieldindex.keys():
setattr(self, self._fieldindex[field_id], value)
return True
for fieldname, fieldtype in self.get_field_attributes().items():
item = getattr(self, fieldname, None)
if item:
if isinstance(fieldtype, OneToOne):
result = item.set_value_by_id(field_id, value)
if result:
return result
elif isinstance(fieldtype, OneToMany):
for subitem in item:
result = subitem.set_value_by_id(field_id, value)
if result:
return result
return False
def get_field_attributes(self):
"""
Geeft veldattributen terug in de juiste volgorde: de volgorde
waarin ze zijn gedeclareerd.
"""
return self._fieldattrs
def undo(self):
self.select(fltr=self._fltr)
