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Fixed #153 -- Changed docs to use new ordering syntax
git-svn-id: http://code.djangoproject.com/svn/django/trunk@299 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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@ -107,14 +107,15 @@ provided by the ``order_by`` argument to a lookup::
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polls.get_list(
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pub_date__year=2005,
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pub_date__month=1,
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order_by=(("pub_date", "DESC"), ("question", "ASC")),
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order_by=('-pub_date', 'question'),
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)
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The result set above will be ordered by ``pub_date`` (descending), then
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by ``question`` (ascending). Just like in models, the ``order_by`` clause
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is a list of ordering tuples where the first element is the field and the
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second is "ASC" (ascending) or "DESC" (descending). You can also
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use the tuple ``(None, "RANDOM")`` to order the result set randomly.
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The result set above will be ordered by ``pub_date`` descending, then
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by ``question`` ascending. The negative sign in front of "-pub_date" indicates
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descending order. Ascending order is implied. To order randomly, use "?", like
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so::
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polls.get_list(order_by=['?'])
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Relationships (joins)
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=====================
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@ -76,11 +76,11 @@ wide array of options, only ``fields`` is required.
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``ordering``
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The default ordering for the object, for use by ``get_list`` and the admin::
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ordering = (('order_date', 'DESC'),)
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ordering = ['-order_date']
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This is a tuple of 2-tuples. Each 2-tuple is ``(field_name, ordering_type)``
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where ordering_type is either ``"ASC"`` or ``"DESC"``. You can also use the
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``(None, "RANDOM")`` for random ordering.
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This is a tuple or list of strings. Each string is a field name with an
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optional "-" (indicating descending order). Or, you can use the string "?"
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to order randomly.
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``permissions``
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Extra permissions to enter into the permissions table when creating this
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@ -662,7 +662,7 @@ object, which has the following options. All are optional.
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(This example also has ``search_fields`` defined; see below).
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``ordering``
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An ordering tuple (see the `Options for models`_, above) that gives a
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A list or tuple (see the `Options for models`_, above) that gives a
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different ordering for the admin change list. If this isn't given, the
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model's default ordering will be used.
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@ -14,25 +14,25 @@ application and will focus on creating the public interface -- "views."
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A view is a "type" of Web page in your Django application that generally
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serves a specific function and has a specific template. For example, in a
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weblog application, you might have the following views:
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* Blog homepage -- displays the latest few entries.
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* Entry "detail" page -- permalink page for a single entry.
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* Year-based archive page -- displays all months with entries in the
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* Year-based archive page -- displays all months with entries in the
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given year.
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* Month-based archive page -- displays all days with entries in the
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* Month-based archive page -- displays all days with entries in the
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given month.
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* Day-based archive page -- displays all entries in the given day.
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* Comment action -- handles posting comments to a given entry.
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In our poll application, we'll have the following four views:
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* Poll "archive" page -- displays the latest few polls.
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* Poll "detail" page -- displays a poll question, with no results but
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with a form to vote.
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* Poll "results" page -- displays results for a particular poll.
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* Vote action -- handles voting for a particular choice in a particular
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poll.
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In Django, each view is represented by a simple Python function.
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Design your URLs
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@ -174,8 +174,7 @@ publication date::
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from django.utils.httpwrappers import HttpResponse
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def index(request):
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latest_poll_list = polls.get_list(order_by=[('pub_date', 'DESC')],
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limit=5)
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latest_poll_list = polls.get_list(order_by=['-pub_date'], limit=5)
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output = ', '.join([p.question for p in latest_poll_list])
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return HttpResponse(output)
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@ -189,8 +188,7 @@ So let's use Django's template system to separate the design from Python::
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from django.utils.httpwrappers import HttpResponse
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def index(request):
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latest_poll_list = polls.get_list(order_by=[('pub_date', 'DESC')],
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limit=5)
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latest_poll_list = polls.get_list(order_by=['-pub_date'], limit=5)
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t = template_loader.get_template('polls/index')
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c = Context(request, {
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'latest_poll_list': latest_poll_list,
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@ -278,7 +276,7 @@ Two more things to note about 404 views:
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* The 404 view is also called if Django doesn't find a match after checking
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every regular expression in the URLconf.
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* If you don't define your own 404 view -- and simply use the default,
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* If you don't define your own 404 view -- and simply use the default,
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which is recommended -- you still have one obligation: To create a
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``404.html`` template in the root of your template directory. The default
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404 view will use that template for all 404 errors.
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