kopia lustrzana https://github.com/wagtail/wagtail
243 wiersze
5.6 KiB
ReStructuredText
243 wiersze
5.6 KiB
ReStructuredText
=======================
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Page QuerySet reference
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=======================
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All models that inherit from :class:`~wagtail.wagtailcore.models.Page` are given some extra QuerySet methods accessible from their ``.objects`` attribute.
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Examples
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========
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- Selecting only live pages
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.. code-block:: python
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live_pages = Page.objects.live()
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- Selecting published EventPages that are descendants of events_index
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.. code-block:: python
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events = EventPage.objects.live().descendant_of(events_index)
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- Getting a list of menu items
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.. code-block:: python
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# This gets a QuerySet of live children of the homepage with ``show_in_menus`` set
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menu_items = homepage.get_children().live().in_menu()
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Reference
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=========
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.. automodule:: wagtail.wagtailcore.query
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.. autoclass:: PageQuerySet
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.. automethod:: live
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Example:
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.. code-block:: python
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published_pages = Page.objects.live()
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.. automethod:: not_live
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Example:
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.. code-block:: python
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unpublished_pages = Page.objects.not_live()
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.. automethod:: in_menu
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Example:
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.. code-block:: python
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# Build a menu from live pages that are children of the homepage
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menu_items = homepage.get_children().live().in_menu()
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.. note::
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To put your page in menus, set the show_in_menus flag to true:
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.. code-block:: python
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# Add 'my_page' to the menu
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my_page.show_in_menus = True
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.. automethod:: not_in_menu
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.. automethod:: page
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Example:
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.. code-block:: python
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# Append an extra page to a QuerySet
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new_queryset = old_queryset | Page.objects.page(page_to_add)
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.. automethod:: not_page
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Example:
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.. code-block:: python
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# Remove a page from a QuerySet
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new_queryset = old_queryset & Page.objects.not_page(page_to_remove)
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.. automethod:: descendant_of
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Example:
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.. code-block:: python
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# Get EventPages that are under the special_events Page
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special_events = EventPage.objects.descendant_of(special_events_index)
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# Alternative way
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special_events = special_events_index.get_descendants()
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.. automethod:: not_descendant_of
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Example:
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.. code-block:: python
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# Get EventPages that are not under the archived_events Page
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non_archived_events = EventPage.objects.not_descendant_of(archived_events_index)
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.. automethod:: child_of
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Example:
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.. code-block:: python
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# Get a list of sections
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sections = Page.objects.child_of(homepage)
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# Alternative way
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sections = homepage.get_children()
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.. automethod:: not_child_of
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.. automethod:: ancestor_of
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Example:
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.. code-block:: python
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# Get the current section
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current_section = Page.objects.ancestor_of(current_page).child_of(homepage).first()
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# Alternative way
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current_section = current_page.get_ancestors().child_of(homepage).first()
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.. automethod:: not_ancestor_of
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Example:
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.. code-block:: python
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# Get the other sections
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other_sections = Page.objects.not_ancestor_of(current_page).child_of(homepage)
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.. automethod:: parent_of
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.. automethod:: not_parent_of
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.. automethod:: sibling_of
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Example:
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.. code-block:: python
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# Get list of siblings
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siblings = Page.objects.sibling_of(current_page)
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# Alternative way
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siblings = current_page.get_siblings()
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.. automethod:: not_sibling_of
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.. automethod:: public
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See: :ref:`private_pages`
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.. note::
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This doesn't filter out unpublished pages. If you want to only have published public pages, use ``.live().public()``
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Example:
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.. code-block:: python
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# Find all the pages that are viewable by the public
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all_pages = Page.objects.live().public()
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.. automethod:: not_public
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.. automethod:: search
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See: :ref:`wagtailsearch_searching_pages`
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Example:
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.. code-block:: python
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# Search future events
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results = EventPage.objects.live().filter(date__gt=timezone.now()).search("Hello")
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.. automethod:: type
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Example:
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.. code-block:: python
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# Find all pages that are of type AbstractEmailForm, or a descendant of it
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form_pages = Page.objects.type(AbstractEmailForm)
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.. automethod:: not_type
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.. automethod:: exact_type
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Example:
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.. code-block:: python
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# Find all pages that are of the exact type EventPage
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event_pages = Page.objects.exact_type(EventPage)
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.. automethod:: not_exact_type
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Example:
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.. code-block:: python
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# Find all pages that are not of the exact type EventPage (but may be a subclass)
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non_event_pages = Page.objects.not_exact_type(EventPage)
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.. automethod:: unpublish
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Example:
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.. code-block:: python
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# Unpublish current_page and all of its children
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Page.objects.descendant_of(current_page, inclusive=True).unpublish()
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.. automethod:: specific
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Example:
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.. code-block:: python
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# Get the specific instance of all children of the hompage,
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# in a minimum number of database queries.
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homepage.get_children().specific()
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See also: :py:attr:`Page.specific <wagtail.wagtailcore.models.Page.specific>`
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