New in version 3.2.
Content creation wizards¶
See the How-to section on wizards for an introduction to creating wizards.
Wizard classes are sub-classes of cms.wizards.wizard_base.Wizard
.
They need to be registered with the cms.wizards.wizard_pool.wizard_pool
:
wizard_pool.register(my_app_wizard)
Finally, a wizard needs to be instantiated, for example:
my_app_wizard = MyAppWizard(
title="New MyApp",
weight=200,
form=MyAppWizardForm,
description="Create a new MyApp instance",
)
When instantiating a Wizard object, use the keywords:
- title
The title of the wizard. This will appear in a large font size on the wizard “menu”
- weight
The “weight” of the wizard when determining the sort-order.
- form
The form to use for this wizard. This is mandatory, but can be sub-classed from django.forms.form or django.forms.ModelForm.
- model
If a Form is used above, this keyword argument must be supplied and should contain the model class. This is used to determine the unique wizard “signature” amongst other things.
- template_name
An optional template can be supplied.
- description
The description is optional, but if it is not supplied, the CMS will create one from the pattern: “Create a new «model.verbose_name» instance.”
- edit_mode_on_success
If set, the CMS will switch the user to edit-mode by adding an
edit
param to the query-string of the URL returned byget_success_url
. This isTrue
by default.
Base Wizard¶
All wizard classes should inherit from cms.wizards.wizard_base.Wizard
. This
class implements a number of methods that may be overridden as required.
Base Wizard methods¶
get_description¶
Simply returns the description
property assigned during instantiation or one
derived from the model if description is not provided during instantiation.
Override this method if this needs to be determined programmatically.
get_title¶
Simply returns the title
property assigned during instantiation. Override
this method if this needs to be determined programmatically.
get_success_url¶
Once the wizard has completed, the user will be redirected to the URL of the new
object that was created. By default, this is done by return the result of
calling the get_absolute_url
method on the object. This may then be modified
to force the user into edit mode if the wizard property edit_mode_on_success
is True.
In some cases, the created content will not implement get_absolute_url
or
that redirecting the user is undesirable. In these cases, simply override this
method. If get_success_url
returns None
, the CMS will just redirect to
the current page after the object is created.
This method is called by the CMS with the parameter:
- obj
The created object
- kwargs
Arbitrary keyword arguments
get_weight¶
Simply returns the weight
property assigned during instantiation. Override
this method if this needs to be determined programmatically.
user_has_add_permission¶
This should return a boolean reflecting whether the user has permission to create the underlying content for the wizard.
This method is called by the CMS with these parameters:
- user
The current user
- page
The current CMS page the user is viewing when invoking the wizard
wizard_pool
¶
wizard_pool
includes a read-only property discovered
which returns the
Boolean True
if wizard-discovery has already occurred and False
otherwise.
Wizard pool methods¶
is_registered¶
Sometimes, it may be necessary to check to see if a specific wizard has been registered. To do this, simply call:
value = wizard_pool.is_registered(«wizard»)
register¶
You may notice from the example above that the last line in the sample code is:
wizard_pool.register(my_app_wizard)
This sort of thing should look very familiar, as a similar approach is used for cms_apps, template tags and even Django’s admin.
Calling the wizard pool’s register
method will register the provided wizard
into the pool, unless there is already a wizard of the same module and class
name. In this case, the register method will raise a
cms.wizards.wizard_pool.AlreadyRegisteredException
.
unregister¶
It may be useful to unregister wizards that have already been registered with the pool. To do this, simply call:
value = wizard_pool.unregister(«wizard»)
The value returned will be a Boolean: True
if a wizard was successfully
unregistered or False
otherwise.
get_entry¶
If you would like to get a reference to a specific wizard in the pool, just call
get_entry()
as follows:
wizard = wizard_pool.get_entry(my_app_wizard)
get_entries¶
get_entries()
is useful if it is required to have a list of all registered
wizards. Typically, this is used to iterate over them all. Note that they will
be returned in the order of their weight
: smallest numbers for weight are
returned first.:
for wizard in wizard_pool.get_entries():
# do something with a wizard...