wagtail/docs/reference/contrib/modeladmin/create_edit_delete_views.md

Customising CreateView, EditView and DeleteView

**NOTE:** `modeladmin` only provides 'create', 'edit' and 'delete' functionality for non page type models (models that do not extend `wagtailcore.models.Page`). If your model is a 'page type' model, customising any of the following will not have any effect:

(modeladmin_edit_handler_customisation)=

Changing which fields appear in CreateView & EditView

edit_handler can be used on any Django models.Model class, just like it can be used for Page models or other models registered as Snippets in Wagtail.

To change the way your MyPageModel is displayed in the CreateView and the EditView, simply define an edit_handler or panels attribute on your model class.

class MyPageModel(models.Model):
    first_name = models.CharField(max_length=100)
    last_name = models.CharField(max_length=100)
    address = models.TextField()

    panels = [
        MultiFieldPanel([
            FieldRowPanel([
                FieldPanel('first_name', classname='fn'),
                FieldPanel('last_name', classname='ln'),
            ]),
            FieldPanel('address', classname='custom1',)
        ])
    ]

Or alternatively:

class MyPageModel(models.Model):
    first_name = models.CharField(max_length=100)
    last_name = models.CharField(max_length=100)
    address = models.TextField()

    custom_panels = [
        MultiFieldPanel([
            FieldRowPanel([
                FieldPanel('first_name', classname='fn'),
                FieldPanel('last_name', classname='ln'),
            ]),
            FieldPanel('address', classname='custom1',)
        ])
    ]
    edit_handler = ObjectList(custom_panels)
    # or
    edit_handler = TabbedInterface([
        ObjectList(custom_panels, heading='First Tab'),
        ObjectList(...)
    ])

edit_handler and panels can alternatively be defined on a ModelAdmin definition. This feature is especially useful for use cases where you have to work with models that are 'out of reach' (due to being part of a third-party package, for example).

class BookAdmin(ModelAdmin):
    model = Book

    panels = [
        FieldPanel('title'),
        FieldPanel('author'),
    ]

Or alternatively:

class BookAdmin(ModelAdmin):
    model = Book

    custom_panels = [
        FieldPanel('title'),
        FieldPanel('author'),
    ]
    edit_handler = ObjectList(custom_panels)

(modeladmin_form_view_extra_css)=

ModelAdmin.form_view_extra_css

Expected value: A list of path names of additional stylesheets to be added to CreateView and EditView

See the following part of the docs to find out more:

(modeladmin_form_view_extra_js)=

ModelAdmin.form_view_extra_js

Expected value: A list of path names of additional js files to be added to CreateView and EditView

See the following part of the docs to find out more:

(modeladmin_create_template_name)=

ModelAdmin.create_template_name

Expected value: The path to a custom template to use for CreateView

See the following part of the docs to find out more:

(modeladmin_create_view_class)=

ModelAdmin.create_view_class

Expected value: A custom view class to replace modeladmin.views.CreateView

See the following part of the docs to find out more:

(modeladmin_edit_template_name)=

ModelAdmin.edit_template_name

Expected value: The path to a custom template to use for EditView

See the following part of the docs to find out more:

(modeladmin_edit_view_class)=

ModelAdmin.edit_view_class

Expected value: A custom view class to replace modeladmin.views.EditView

See the following part of the docs to find out more:

(modeladmin_delete_template_name)=

ModelAdmin.delete_template_name

Expected value: The path to a custom template to use for DeleteView

See the following part of the docs to find out more:

(modeladmin_delete_view_class)=

ModelAdmin.delete_view_class

Expected value: A custom view class to replace modeladmin.views.DeleteView

See the following part of the docs to find out more:

(modeladmin_form_fields_exclude)=

ModelAdmin.form_fields_exclude

Expected value: A list or tuple of fields names

When using CreateView or EditView to create or update model instances, this value will be passed to the edit form, so that any named fields will be excluded from the form. This is particularly useful when registering ModelAdmin classes for models from third-party apps, where defining panel configurations on the Model itself is more complicated.

(modeladmin_prepopulated_fields)=

ModelAdmin.prepopulated_fields

Expected value: A dict mapping prepopulated fields to a tuple of fields to prepopulate from

When using CreateView or EditView to create or update model instances, the fields corresponding to the keys in the dict are prepopulated using the fields in the corresponding tuple. The main use for this functionality is to automatically generate the value for SlugField fields from one or more other fields. The generated value is produced by concatenating the values of the source fields, and then by transforming that result into a valid slug (for example substituting dashes for spaces; lowercasing ASCII letters; and removing various English stop words such as ‘a’, ‘an’, ‘as’, and similar).

Prepopulated fields aren’t modified by JavaScript after a value has been saved. It’s usually undesired that slugs change (which would cause an object’s URL to change if the slug is used in it).

prepopulated_fields doesn’t accept DateTimeField, ForeignKey, OneToOneField, and ManyToManyField fields.

ModelAdmin.get_edit_handler()

Must return: An instance of wagtail.admin.panels.ObjectList

Returns the appropriate edit_handler for the modeladmin class. edit_handlers can be defined either on the model itself or on the modeladmin (as property edit_handler or panels). Falls back to extracting panel / edit handler definitions from the model class.