Author: batiste.bieler
Date: Sun May 10 06:58:24 2009
New Revision: 520
Modified:
trunk/pages/templatetags/pages_tags.py
Log:
Code cleaning in template tags and add a load_pages tag
Modified: trunk/pages/templatetags/pages_tags.py
==============================================================================
--- trunk/pages/templatetags/pages_tags.py (original)
+++ trunk/pages/templatetags/pages_tags.py Sun May 10 06:58:24 2009
@@ -14,6 +14,44 @@
PLACEHOLDER_ERROR = _("[Placeholder %(name)s had syntax error: %(error)s]")
+def get_content(context, page, content_type, lang, fallback=True):
+ """Helper function used by placeholder nodes"""
+ request = context.get('request', False)
+ if not request or not page:
+ return ''
+ if lang is None:
+ if 'lang' in context:
+ lang = context['lang']
+ else:
+ lang = get_language_from_request(context['request'], page)
+
+ # if the page is a SafeUnicode, try to use it like a slug
+ if isinstance(page, SafeUnicode):
+ c = Content.objects.filter(type='slug', lang=lang, body=page)
+ if len(c):
+ page = c[0].page
+ else:
+ ''
+ c = Content.objects.get_content(page, lang, content_type, fallback)
+ if c:
+ return c
+ return ''
+
+"""Fitlers"""
+
+def has_content_in(page, language):
+ """Tell if the page has any content in a particular language"""
+ return Content.objects.filter(page=page, language=language).count() > 0
+register.filter(has_content_in)
+
+def has_permission(page, request):
+ """Tell if a user has permissions on the page according to the request
+ object"""
+ return page.has_page_permission(request)
+register.filter(has_permission)
+
+"""Inclusion tags"""
+
def pages_menu(context, page, url='/'):
"""render a nested list of all children of the pages"""
request = context['request']
@@ -55,33 +93,6 @@
pages_admin_menu = register.inclusion_tag('admin/pages/page/menu.html',
takes_context=True)(pages_admin_menu)
-def has_permission(page, request):
- return page.has_page_permission(request)
-register.filter(has_permission)
-
-
-
-def get_content(context, page, content_type, lang, fallback=True):
- request = context.get('request', False)
- if not request or not page:
- return ''
- if lang is None:
- if 'lang' in context:
- lang = context['lang']
- else:
- lang = get_language_from_request(context['request'], page)
-
- # if the page is a SafeUnicode, try to use it like a slug
- if isinstance(page, SafeUnicode):
- c = Content.objects.filter(type='slug', lang=lang, body=page)
- if len(c):
- page = c[0].page
- else:
- ''
- c = Content.objects.get_content(page, lang, content_type, fallback)
- if c:
- return c
- return ''
def show_content(context, page, content_type, lang=None, fallback=True):
"""Display a content type from a page.
@@ -102,6 +113,52 @@
show_content = register.inclusion_tag('pages/content.html',
takes_context=True)(show_content)
+def show_absolute_url(context, page, lang=None):
+ """Show the url of a page in the right language
+
+ eg: {% show_absolute_url page_object %}
+
+ You can also use the slug of a page
+
+ eg: {% show_absolute_url "my-page-slug" %}
+
+ Keyword arguments:
+ page -- the page object or a slug string
+ lang -- the wanted language (defaults to None, uses request object
else)
+ """
+ request = context.get('request', False)
+ # if the page is a SafeUnicode, try to use it like a slug
+ if isinstance(page, SafeUnicode) or isinstance(page, unicode):
+ page = get_page_from_slug(page, request)
+ if not request or not page:
+ return {'content':''}
+ if lang is None:
+ if 'lang' in context:
+ lang = context['lang']
+ else:
+ lang = get_language_from_request(context['request'], page)
+ url = page.get_absolute_url(language=lang)
+ if url:
+ return {'content':url}
+ return {'content':''}
+show_absolute_url = register.inclusion_tag('pages/content.html',
+
takes_context=True)(show_absolute_url)
+
+def show_revisions(context, page, content_type, lang=None):
+ """Render the last 10 revisions of a page content with a list using
+ the pages/revisions.html template"""
+ if not settings.PAGE_CONTENT_REVISION:
+ return {'revisions':None}
+ revisions = Content.objects.filter(page=page, language=lang,
+
type=content_type).order_by('-creation_date')
+ if len(revisions) < 2:
+ return {'revisions':None}
+ return {'revisions':revisions[0:10]}
+show_revisions = register.inclusion_tag('pages/revisions.html',
+ takes_context=True)(show_revisions)
+
+"""Tags"""
+
class GetContentNode(template.Node):
def __init__(self, page, content_type, varname, lang):
self.page = page
@@ -149,80 +206,29 @@
lang = parser.compile_filter(bits[3])
return GetContentNode(page, content_type, varname, lang)
do_get_content = register.tag('get_content', do_get_content)
-
-def show_absolute_url(context, page, lang=None):
- """Show the url of a page in the right language
-
- eg: {% show_absolute_url page_object %}
-
- You can also use the slug of a page
-
- eg: {% show_absolute_url "my-page-slug" %}
-
- Keyword arguments:
- page -- the page object or a slug string
- lang -- the wanted language (defaults to None, uses request object
else)
- """
- request = context.get('request', False)
- # if the page is a SafeUnicode, try to use it like a slug
- if isinstance(page, SafeUnicode) or isinstance(page, unicode):
- page = get_page_from_slug(page, request)
- if not request or not page:
- return {'content':''}
- if lang is None:
- if 'lang' in context:
- lang = context['lang']
- else:
- lang = get_language_from_request(context['request'], page)
- url = page.get_absolute_url(language=lang)
- if url:
- return {'content':url}
- return {'content':''}
-show_absolute_url = register.inclusion_tag('pages/content.html',
-
takes_context=True)(show_absolute_url)
-
-def show_revisions(context, page, content_type, lang=None):
- """Render the last 10 revisions of a page content with a list"""
- if not settings.PAGE_CONTENT_REVISION:
- return {'revisions':None}
- revisions = Content.objects.filter(page=page, language=lang,
-
type=content_type).order_by('-creation_date')
- if len(revisions) < 2:
- return {'revisions':None}
- return {'revisions':revisions[0:10]}
-show_revisions = register.inclusion_tag('pages/revisions.html',
- takes_context=True)(show_revisions)
+class LoadPagesNode(template.Node):
+ def render(self, context):
+ if (not context.has_key('pages')):
+ context['pages'] = Page.objects.navigation()
+ return ''
+def do_load_pages(parser, token):
+ """Load the navigation pages into the current context
-def has_content_in(page,language):
- return Content.objects.filter(page=page,language=language).count() > 0
-register.filter(has_content_in)
+ eg:
+ <ul>
+ {% load_pages %}
+ {% for page in pages %}
+ {% pages_menu page %}
+ {% endfor %}
+ </ul>
-def do_placeholder(parser, token):
"""
- Syntax::
-
- {% placeholder [name] %}
- {% placeholder [name] parsed %}
-
- {% placeholder [name] on [page] %}
- {% placeholder [name] with [widget] %}
- {% placeholder [name] on [page] with [widget] %}
+ return LoadPagesNode()
+do_load_pages = register.tag('load_pages', do_load_pages)
- {% placeholder [name] on [page] parsed %}
- {% placeholder [name] with [widget] parsed %}
- {% placeholder [name] on [page] with [widget] parsed %}
-
- Example usage::
-
- {% placeholder about %}
- {% placeholder body with TextArea as body_text %}
- {% placeholder welcome with TextArea parsed as welcome_text %}
- {% placeholder teaser on next_page with TextArea parsed %}
- """
- return PlaceholderNode.handle_token(parser, token)
class PlaceholderNode(template.Node):
"""This template node is used to output page content and
@@ -371,5 +377,29 @@
def __repr__(self):
return "<Placeholder Node: %s>" % self.name
+
+def do_placeholder(parser, token):
+ """
+ Syntax::
+
+ {% placeholder [name] %}
+ {% placeholder [name] parsed %}
+
+ {% placeholder [name] on [page] %}
+ {% placeholder [name] with [widget] %}
+ {% placeholder [name] on [page] with [widget] %}
+
+ {% placeholder [name] on [page] parsed %}
+ {% placeholder [name] with [widget] parsed %}
+ {% placeholder [name] on [page] with [widget] parsed %}
+
+ Example usage::
+
+ {% placeholder about %}
+ {% placeholder body with TextArea as body_text %}
+ {% placeholder welcome with TextArea parsed as welcome_text %}
+ {% placeholder teaser on next_page with TextArea parsed %}
+ """
+ return PlaceholderNode.handle_token(parser, token)
register.tag('placeholder', do_placeholder)
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