def update(self):
"""See z3c.form.interfaces.IWidget."""
# Step 1: Determine the value.
value = interfaces.NO_VALUE
lookForDefault = False
# Step 1.1: If possible, get a value from the request
if not self.ignoreRequest:
#at this turn we do not need errors to be set on widgets
#errors will be set when extract gets called from form.extractData
self.setErrors = False
widget_value = self.extract()
if widget_value is not interfaces.NO_VALUE:
# Once we found the value in the request, it takes precendence
# over everything and nothing else has to be done.
self.value = widget_value
value = PLACEHOLDER
# Step 1.2: If we have a widget with a field and we have no value yet,
# we have some more possible locations to get the value
if (interfaces.IFieldWidget.providedBy(self) and
value is interfaces.NO_VALUE and
value is not PLACEHOLDER):
# Step 1.2.1: If the widget knows about its context and the
# context is to be used to extract a value, get
# it now via a data manager.
if (interfaces.IContextAware.providedBy(self) and
not self.ignoreContext):
value = zope.component.getMultiAdapter(
(self.context, self.field),
interfaces.IDataManager).query()
# Step 1.2.2: If we still do not have a value, we can always use
# the default value of the field, id set
# NOTE: It should check field.default is not missing_value, but
# that requires fixing zope.schema first
if ((value is self.field.missing_value or
value is interfaces.NO_VALUE) and
self.field.default is not None):
value = self.field.default
lookForDefault = True
# Step 1.3: If we still have not found a value, then we try to get it
# from an attribute value
if value is interfaces.NO_VALUE or lookForDefault:
adapter = zope.component.queryMultiAdapter(
(self.context, self.request, self.form, self.field, self),
interfaces.IValue, name='default')
if adapter:
value = adapter.get()
# Step 1.4: Convert the value to one that the widget can understand
if value not in (interfaces.NO_VALUE, PLACEHOLDER):
converter = interfaces.IDataConverter(self)
self.value = converter.toWidgetValue(value)
# Step 2: Update selected attributes
for attrName in self._adapterValueAttributes:
# only allow to set values for known attributes
if hasattr(self, attrName):
value = zope.component.queryMultiAdapter(
(self.context, self.request, self.form, self.field, self),
interfaces.IValue, name=attrName)
if value is not None:
setattr(self, attrName, value.get())
def update(self):
value = zope.component.queryMultiAdapter(
(self.context, self.request, self.widget,
self.field, self.form, self.content),
interfaces.IValue, name='message')
if value is not None:
self.message = value.get()
else:
self.message = self.createMessage()
def update(self):
value = zope.component.queryMultiAdapter(
(self.context, self.request, self.widget, self.field, self.form,
self.content),
interfaces.IValue,
name='message')
if value is not None:
self.message = value.get()
else:
self.message = self.createMessage()
def update(self):
"""See z3c.form.interfaces.IWidget."""
# Step 1: Determine the value.
value = interfaces.NOVALUE
lookForDefault = False
# Step 1.1: If possible, get a value from the request
if not self.ignoreRequest:
widget_value = self.extract()
if widget_value is not interfaces.NOVALUE:
# Once we found the value in the request, it takes precendence
# over everything and nothing else has to be done.
self.value = widget_value
value = PLACEHOLDER
# Step 1.2: If we have a widget with a field and we have no value yet,
# we have some more possible locations to get the value
if (interfaces.IFieldWidget.providedBy(self)
and value is interfaces.NOVALUE and value is not PLACEHOLDER):
# Step 1.2.1: If the widget knows about its context and the
# context is to be used to extract a value, get
# it now via a data manager.
if (interfaces.IContextAware.providedBy(self)
and not self.ignoreContext and self.context is not None):
value = zope.component.getMultiAdapter(
(self.context, self.field), interfaces.IDataManager).get()
# Step 1.2.2: If we still do not have a value, we can always use
# the default value of the field, id set
# NOTE: It should check field.default is not missing_value, but
# that requires fixing zope.schema first
if ((value is self.field.missing_value
or value is interfaces.NOVALUE)
and self.field.default is not None):
value = self.field.default
lookForDefault = True
# Step 1.3: If we still have not found a value, then we try to get it
# from an attribute value
if value is interfaces.NOVALUE or lookForDefault:
adapter = zope.component.queryMultiAdapter(
(self.context, self.request, self.form, self.field, self),
interfaces.IValue,
name='default')
if adapter:
value = adapter.get()
# Step 1.4: Convert the value to one that the widget can understand
if value not in (interfaces.NOVALUE, PLACEHOLDER):
converter = interfaces.IDataConverter(self)
self.value = converter.toWidgetValue(value)
# Step 2: Update selected attributes
for attrName in self._adapterValueAttributes:
value = zope.component.queryMultiAdapter(
(self.context, self.request, self.form, self.field, self),
interfaces.IValue,
name=attrName)
if value is not None:
setattr(self, attrName, value.get())
