Reformatted docs/templates.txt to put headings in filter and tag references, so each tag/filter gets a permalink
git-svn-id: http://code.djangoproject.com/svn/django/trunk@1110 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Adrian Holovaty
parent
5defabca11
commit
92241e21b8
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@ -289,18 +289,23 @@ available, and what they do.
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Built-in tag reference
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----------------------
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``block``
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Define a block that can be overridden by child templates. See `Template
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inheritance`_ for more information.
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block
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~~~~~
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``comment``
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Ignore everything between ``{% comment %}`` and ``{% endcomment %}``
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Define a block that can be overridden by child templates. See
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`Template inheritance`_ for more information.
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``cycle``
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Cycle among the given strings each time this tag is encountered.
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comment
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~~~~~~~
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Within a loop, cycles among the given strings each time through
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the loop::
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Ignore everything between ``{% comment %}`` and ``{% endcomment %}``
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cycle
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~~~~~
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Cycle among the given strings each time this tag is encountered.
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Within a loop, cycles among the given strings each time through the loop::
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{% for o in some_list %}
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<tr class="{% cycle row1,row2 %}">
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@ -308,51 +313,59 @@ Built-in tag reference
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</tr>
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{% endfor %}
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Outside of a loop, give the values a unique name the first time you call it,
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then use that name each successive time through::
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Outside of a loop, give the values a unique name the first time you call it,
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then use that name each successive time through::
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<tr class="{% cycle row1,row2,row3 as rowcolors %}">...</tr>
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<tr class="{% cycle rowcolors %}">...</tr>
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<tr class="{% cycle rowcolors %}">...</tr>
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You can use any number of values, separated by commas. Make sure not to put
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spaces between the values -- only commas.
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You can use any number of values, separated by commas. Make sure not to put
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spaces between the values -- only commas.
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``debug``
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Output a whole load of debugging information, including the current context and
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imported modules.
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debug
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~~~~~
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``extends``
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Signal that this template extends a parent template.
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Output a whole load of debugging information, including the current context and
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imported modules.
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This tag may be used in two ways: ``{% extends "base" %}`` (with quotes) uses
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the literal value "base" as the name of the parent template to extend, or ``{%
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extends variable %}`` uses the value of ``variable`` as the name of the parent
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template to extend.
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extends
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~~~~~~~
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See `Template inheritance`_ for more information.
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Signal that this template extends a parent template.
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``filter``
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Filter the contents of the variable through variable filters.
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This tag may be used in two ways: ``{% extends "base" %}`` (with quotes) uses
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the literal value "base" as the name of the parent template to extend, or ``{%
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extends variable %}`` uses the value of ``variable`` as the name of the parent
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template to extend.
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Filters can also be piped through each other, and they can have arguments --
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just like in variable syntax.
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See `Template inheritance`_ for more information.
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Sample usage::
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filter
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~~~~~~
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Filter the contents of the variable through variable filters.
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Filters can also be piped through each other, and they can have arguments --
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just like in variable syntax.
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Sample usage::
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{% filter escape|lower %}
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This text will be HTML-escaped, and will appear in all lowercase.
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{% endfilter %}
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``firstof``
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Outputs the first variable passed that is not False. Outputs nothing if all the
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passed variables are False.
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firstof
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~~~~~~~
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Sample usage::
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Outputs the first variable passed that is not False. Outputs nothing if all the
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passed variables are False.
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Sample usage::
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{% firstof var1 var2 var3 %}
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This is equivalent to::
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This is equivalent to::
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{% if var1 %}
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{{ var1 }}
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@ -362,11 +375,11 @@ Built-in tag reference
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{{ var3 }}
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{% endif %}{% endif %}{% endif %}
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but obviously much cleaner!
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for
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~~~
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``for``
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Loop over each item in an array. For example, to display a list of athletes
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given ``athlete_list``::
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Loop over each item in an array. For example, to display a list of athletes
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given ``athlete_list``::
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<ul>
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{% for athlete in athlete_list %}
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@ -374,9 +387,9 @@ Built-in tag reference
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{% endfor %}
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</ul>
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You can also loop over a list in reverse by using ``{% for obj in list reversed %}``.
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You can also loop over a list in reverse by using ``{% for obj in list reversed %}``.
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The for loop sets a number of variables available within the loop:
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The for loop sets a number of variables available within the loop:
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========================== ================================================
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Variable Description
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@ -393,10 +406,12 @@ Built-in tag reference
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current one
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========================== ================================================
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``if``
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The ``{% if %}`` tag evaluates a variable, and if that variable is "true" (i.e.
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exists, is not empty, and is not a false boolean value) the contents of the
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block are output::
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if
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~~
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The ``{% if %}`` tag evaluates a variable, and if that variable is "true" (i.e.
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exists, is not empty, and is not a false boolean value) the contents of the
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block are output::
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{% if athlete_list %}
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Number of athletes: {{ athlete_list|length }}
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@ -404,14 +419,14 @@ Built-in tag reference
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No athletes.
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{% endif %}
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In the above, if ``athlete_list`` is not empty, the number of athletes will be
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displayed by the ``{{ athlete_list|length }}`` variable.
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In the above, if ``athlete_list`` is not empty, the number of athletes will be
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displayed by the ``{{ athlete_list|length }}`` variable.
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As you can see, the ``if`` tag can take an option ``{% else %}`` clause that
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will be displayed if the test fails.
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As you can see, the ``if`` tag can take an option ``{% else %}`` clause that
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will be displayed if the test fails.
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``if`` tags may use ``or`` or ``not`` to test a number of variables or to negate
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a given variable::
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``if`` tags may use ``or`` or ``not`` to test a number of variables or to negate
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a given variable::
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{% if not athlete_list %}
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There are no athletes.
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@ -427,8 +442,8 @@ Built-in tag reference
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stupid; it's not my fault).
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{% endif %}
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For simplicity, ``if`` tags do not allow ``and`` clauses; use nested ``if``
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tags instead::
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For simplicity, ``if`` tags do not allow ``and`` clauses; use nested ``if``
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tags instead::
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{% if athlete_list %}
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{% if coach_list %}
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@ -437,12 +452,14 @@ Built-in tag reference
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{% endif %}
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{% endif %}
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``ifchanged``
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Check if a value has changed from the last iteration of a loop.
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ifchanged
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~~~~~~~~~
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The 'ifchanged' block tag is used within a loop. It checks its own rendered
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contents against its previous state and only displays its content if the value
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has changed::
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Check if a value has changed from the last iteration of a loop.
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The 'ifchanged' block tag is used within a loop. It checks its own rendered
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contents against its previous state and only displays its content if the value
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has changed::
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<h1>Archive for {{ year }}</h1>
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@ -451,117 +468,127 @@ Built-in tag reference
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<a href="{{ day|date:"M/d"|lower }}/">{{ day|date:"j" }}</a>
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{% endfor %}
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``ifequal``
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Output the contents of the block if the two arguments equal each other.
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ifequal
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~~~~~~~
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Example::
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Output the contents of the block if the two arguments equal each other.
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Example::
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{% ifequal user.id comment.user_id %}
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...
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{% endifequal %}
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As in the ``{% if %}`` tag, an ``{% else %}`` clause is optional.
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As in the ``{% if %}`` tag, an ``{% else %}`` clause is optional.
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The arguments can be hard-coded strings, so the following is valid::
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The arguments can be hard-coded strings, so the following is valid::
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{% ifequal user.username "adrian" %}
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...
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{% endifequal %}
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``ifnotequal``
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Just like ``ifequal``, except it tests that the two arguments are not equal.
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ifnotequal
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~~~~~~~~~~
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``load``
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Load a custom template tag set.
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Just like ``ifequal``, except it tests that the two arguments are not equal.
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See `Custom tag and filter libraries`_ for more information.
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load
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~~~~
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``now``
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Display the date, formatted according to the given string.
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Load a custom template tag set.
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Uses the same format as PHP's ``date()`` function (http://php.net/date)
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with some custom extensions.
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See `Custom tag and filter libraries`_ for more information.
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Available format strings:
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now
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~~~
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================ ====================================== =====================
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Format character Description Example output
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================ ====================================== =====================
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a ``'a.m.'`` or ``'p.m.'`` (Note that ``'a.m.'``
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Display the date, formatted according to the given string.
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Uses the same format as PHP's ``date()`` function (http://php.net/date)
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with some custom extensions.
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Available format strings:
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================ ====================================== =====================
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Format character Description Example output
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================ ====================================== =====================
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a ``'a.m.'`` or ``'p.m.'`` (Note that ``'a.m.'``
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this is slightly different than PHP's
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output, because this includes periods
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to match Associated Press style.)
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A ``'AM'`` or ``'PM'``. ``'AM'``
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B Not implemented.
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d Day of the month, 2 digits with ``'01'`` to ``'31'``
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A ``'AM'`` or ``'PM'``. ``'AM'``
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B Not implemented.
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d Day of the month, 2 digits with ``'01'`` to ``'31'``
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leading zeros.
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D Day of the week, textual, 3 letters. ``'Fri'``
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f Time, in 12-hour hours and minutes, ``'1'``, ``'1:30'``
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D Day of the week, textual, 3 letters. ``'Fri'``
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f Time, in 12-hour hours and minutes, ``'1'``, ``'1:30'``
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with minutes left off if they're zero.
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Proprietary extension.
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F Month, textual, long. ``'January'``
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g Hour, 12-hour format without leading ``'1'`` to ``'12'``
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F Month, textual, long. ``'January'``
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g Hour, 12-hour format without leading ``'1'`` to ``'12'``
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zeros.
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G Hour, 24-hour format without leading ``'0'`` to ``'23'``
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G Hour, 24-hour format without leading ``'0'`` to ``'23'``
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zeros.
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h Hour, 12-hour format. ``'01'`` to ``'12'``
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H Hour, 24-hour format. ``'00'`` to ``'23'``
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i Minutes. ``'00'`` to ``'59'``
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I Not implemented.
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j Day of the month without leading ``'1'`` to ``'31'``
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h Hour, 12-hour format. ``'01'`` to ``'12'``
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H Hour, 24-hour format. ``'00'`` to ``'23'``
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i Minutes. ``'00'`` to ``'59'``
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I Not implemented.
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j Day of the month without leading ``'1'`` to ``'31'``
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zeros.
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l Day of the week, textual, long. ``'Friday'``
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L Boolean for whether it's a leap year. ``True`` or ``False``
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m Month, 2 digits with leading zeros. ``'01'`` to ``'12'``
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M Month, textual, 3 letters. ``'Jan'``
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n Month without leading zeros. ``'1'`` to ``'12'``
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N Month abbreviation in Associated Press ``'Jan.'``, ``'Feb.'``, ``'March'``, ``'May'``
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l Day of the week, textual, long. ``'Friday'``
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L Boolean for whether it's a leap year. ``True`` or ``False``
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m Month, 2 digits with leading zeros. ``'01'`` to ``'12'``
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M Month, textual, 3 letters. ``'Jan'``
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n Month without leading zeros. ``'1'`` to ``'12'``
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N Month abbreviation in Associated Press ``'Jan.'``, ``'Feb.'``, ``'March'``, ``'May'``
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style. Proprietary extension.
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O Difference to Greenwich time in hours. ``'+0200'``
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P Time, in 12-hour hours, minutes and ``'1 a.m.'``, ``'1:30 p.m.'``, ``'midnight'``, ``'noon'``, ``'12:30 p.m.'``
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O Difference to Greenwich time in hours. ``'+0200'``
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P Time, in 12-hour hours, minutes and ``'1 a.m.'``, ``'1:30 p.m.'``, ``'midnight'``, ``'noon'``, ``'12:30 p.m.'``
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'a.m.'/'p.m.', with minutes left off
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if they're zero and the special-case
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strings 'midnight' and 'noon' if
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appropriate. Proprietary extension.
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r RFC 822 formatted date. ``'Thu, 21 Dec 2000 16:01:07 +0200'``
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s Seconds, 2 digits with leading zeros. ``'00'`` to ``'59'``
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S English ordinal suffix for day of the ``'st'``, ``'nd'``, ``'rd'`` or ``'th'``
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r RFC 822 formatted date. ``'Thu, 21 Dec 2000 16:01:07 +0200'``
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s Seconds, 2 digits with leading zeros. ``'00'`` to ``'59'``
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S English ordinal suffix for day of the ``'st'``, ``'nd'``, ``'rd'`` or ``'th'``
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month, 2 characters.
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t Not implemented.
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T Time zone of this machine. ``'EST'``, ``'MDT'``
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U Not implemented.
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w Day of the week, digits without ``'0'`` (Sunday) to ``'6'`` (Saturday)
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t Not implemented.
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T Time zone of this machine. ``'EST'``, ``'MDT'``
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U Not implemented.
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w Day of the week, digits without ``'0'`` (Sunday) to ``'6'`` (Saturday)
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leading zeros.
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W ISO-8601 week number of year, with ``1``, ``23``
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W ISO-8601 week number of year, with ``1``, ``23``
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weeks starting on Monday.
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y Year, 2 digits. ``'99'``
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Y Year, 4 digits. ``'1999'``
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z Day of the year. ``0`` to ``365``
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Z Time zone offset in seconds. The ``-43200`` to ``43200``
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y Year, 2 digits. ``'99'``
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Y Year, 4 digits. ``'1999'``
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z Day of the year. ``0`` to ``365``
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Z Time zone offset in seconds. The ``-43200`` to ``43200``
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offset for timezones west of UTC is
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always negative, and for those east of
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UTC is always positive.
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================ ====================================== =====================
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================ ====================================== =====================
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Example::
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Example::
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It is {% now "jS F Y H:i" %}
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Note that you can backslash-escape a format string if you want to use the
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"raw" value. In this example, "f" is backslash-escaped, because otherwise
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"f" is a format string that displays the time. The "o" doesn't need to be
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escaped, because it's not a format character.::
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Note that you can backslash-escape a format string if you want to use the
|
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"raw" value. In this example, "f" is backslash-escaped, because otherwise
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"f" is a format string that displays the time. The "o" doesn't need to be
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escaped, because it's not a format character.::
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It is the {% "jS o\f F" %}
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(Displays "It is the 4th of September" %}
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(Displays "It is the 4th of September" %}
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``regroup``
|
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Regroup a list of alike objects by a common attribute.
|
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regroup
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~~~~~~~
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This complex tag is best illustrated by use of an example: say that ``people``
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is a list of ``Person`` objects that have ``first_name``, ``last_name``, and
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``gender`` attributes, and you'd like to display a list that looks like:
|
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Regroup a list of alike objects by a common attribute.
|
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This complex tag is best illustrated by use of an example: say that ``people``
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is a list of ``Person`` objects that have ``first_name``, ``last_name``, and
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``gender`` attributes, and you'd like to display a list that looks like:
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* Male:
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* George Bush
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|
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@ -572,7 +599,7 @@ Built-in tag reference
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* Unknown:
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* Pat Smith
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The following snippet of template code would accomplish this dubious task::
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The following snippet of template code would accomplish this dubious task::
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{% regroup people by gender as grouped %}
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<ul>
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|
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@ -586,45 +613,49 @@ Built-in tag reference
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{% endfor %}
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</ul>
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As you can see, ``{% regroup %}`` populates a variable with a list of objects
|
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with ``grouper`` and ``list`` attributes. ``grouper`` contains the item that
|
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was grouped by; ``list`` contains the list of objects that share that
|
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``grouper``. In this case, ``grouper`` would be ``Male``, ``Female`` and
|
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``Unknown``, and ``list`` is the list of people with those genders.
|
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As you can see, ``{% regroup %}`` populates a variable with a list of objects
|
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with ``grouper`` and ``list`` attributes. ``grouper`` contains the item that
|
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was grouped by; ``list`` contains the list of objects that share that
|
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``grouper``. In this case, ``grouper`` would be ``Male``, ``Female`` and
|
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``Unknown``, and ``list`` is the list of people with those genders.
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|
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Note that ``{% regroup %}`` does not work when the list to be grouped is not
|
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sorted by the key you are grouping by! This means that if your list of people
|
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was not sorted by gender, you'd need to make sure it is sorted before using it,
|
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i.e.::
|
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Note that ``{% regroup %}`` does not work when the list to be grouped is not
|
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sorted by the key you are grouping by! This means that if your list of people
|
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was not sorted by gender, you'd need to make sure it is sorted before using it,
|
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i.e.::
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{% regroup people|dictsort:"gender" by gender as grouped %}
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``ssi``
|
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Output the contents of a given file into the page.
|
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ssi
|
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~~~
|
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Like a simple "include" tag, ``{% ssi %}`` includes the contents of another
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file -- which must be specified using an absolute path -- in the current
|
||||
page::
|
||||
Output the contents of a given file into the page.
|
||||
|
||||
Like a simple "include" tag, ``{% ssi %}`` includes the contents of another
|
||||
file -- which must be specified using an absolute path -- in the current
|
||||
page::
|
||||
|
||||
{% ssi /home/html/ljworld.com/includes/right_generic.html %}
|
||||
|
||||
If the optional "parsed" parameter is given, the contents of the included
|
||||
file are evaluated as template code, within the current context::
|
||||
If the optional "parsed" parameter is given, the contents of the included
|
||||
file are evaluated as template code, within the current context::
|
||||
|
||||
{% ssi /home/html/ljworld.com/includes/right_generic.html parsed %}
|
||||
|
||||
Note that if you use ``{% ssi %}``, you'll need to define
|
||||
`ALLOWED_INCLUDE_ROOTS`_ in your Django settings, as a security measure.
|
||||
Note that if you use ``{% ssi %}``, you'll need to define
|
||||
`ALLOWED_INCLUDE_ROOTS`_ in your Django settings, as a security measure.
|
||||
|
||||
.. _ALLOWED_INCLUDE_ROOTS: http://www.djangoproject.com/documentation/settings/#allowed-include-roots
|
||||
|
||||
``templatetag``
|
||||
Output one of the bits used to compose template tags.
|
||||
templatetag
|
||||
~~~~~~~~~~~
|
||||
|
||||
Since the template system has no concept of "escaping", to display one of the
|
||||
bits used in template tags, you must use the ``{% templatetag %}`` tag.
|
||||
Output one of the syntax characters used to compose template tags.
|
||||
|
||||
The argument tells which template bit to output:
|
||||
Since the template system has no concept of "escaping", to display one of the
|
||||
bits used in template tags, you must use the ``{% templatetag %}`` tag.
|
||||
|
||||
The argument tells which template bit to output:
|
||||
|
||||
================== =======
|
||||
Argument Outputs
|
||||
|
|
@ -635,175 +666,264 @@ Built-in tag reference
|
|||
``closevariable`` ``}}``
|
||||
================== =======
|
||||
|
||||
``widthratio``
|
||||
For creating bar charts and such, this tag calculates the ratio of a given value
|
||||
to a maximum value, and then applies that ratio to a constant.
|
||||
widthratio
|
||||
~~~~~~~~~~
|
||||
|
||||
For example::
|
||||
For creating bar charts and such, this tag calculates the ratio of a given value
|
||||
to a maximum value, and then applies that ratio to a constant.
|
||||
|
||||
For example::
|
||||
|
||||
<img src='bar.gif' height='10' width='{% widthratio this_value max_value 100 %}' />
|
||||
|
||||
Above, if ``this_value`` is 175 and ``max_value`` is 200, the the image in the
|
||||
above example will be 88 pixels wide (because 175/200 = .875; .875 * 100 = 87.5
|
||||
which is rounded up to 88).
|
||||
Above, if ``this_value`` is 175 and ``max_value`` is 200, the the image in the
|
||||
above example will be 88 pixels wide (because 175/200 = .875; .875 * 100 = 87.5
|
||||
which is rounded up to 88).
|
||||
|
||||
Built-in filter reference
|
||||
-------------------------
|
||||
|
||||
``add``
|
||||
Adds the arg to the value.
|
||||
add
|
||||
~~~
|
||||
|
||||
``addslashes``
|
||||
Adds slashes. Useful for passing strings to JavaScript, for example.
|
||||
Adds the arg to the value.
|
||||
|
||||
``capfirst``
|
||||
Capitalizes the first character of the value.
|
||||
addslashes
|
||||
~~~~~~~~~~
|
||||
|
||||
``center``
|
||||
Centers the value in a field of a given width.
|
||||
Adds slashes. Useful for passing strings to JavaScript, for example.
|
||||
|
||||
``cut``
|
||||
Removes all values of arg from the given string.
|
||||
|
||||
``date``
|
||||
Formats a date according to the given format (same as the ``now`` tag).
|
||||
capfirst
|
||||
~~~~~~~~
|
||||
|
||||
``default``
|
||||
If value is unavailable, use given default.
|
||||
Capitalizes the first character of the value.
|
||||
|
||||
``default_if_none``
|
||||
If value is ``None``, use given default.
|
||||
center
|
||||
~~~~~~
|
||||
|
||||
``dictsort``
|
||||
Takes a list of dicts, returns that list sorted by the property given in the
|
||||
argument.
|
||||
Centers the value in a field of a given width.
|
||||
|
||||
``dictsortreversed``
|
||||
Takes a list of dicts, returns that list sorted in reverse order by the property
|
||||
given in the argument.
|
||||
cut
|
||||
~~~
|
||||
|
||||
``divisibleby``
|
||||
Returns true if the value is divisible by the argument.
|
||||
Removes all values of arg from the given string.
|
||||
|
||||
``escape``
|
||||
Escapes a string's HTML.
|
||||
date
|
||||
~~~~
|
||||
|
||||
``filesizeformat``
|
||||
Format the value like a 'human-readable' file size (i.e. 13 KB, 4.1 MB, 102
|
||||
bytes, etc).
|
||||
Formats a date according to the given format (same as the ``now`` tag).
|
||||
|
||||
``first``
|
||||
Returns the first item in a list.
|
||||
default
|
||||
~~~~~~~
|
||||
|
||||
``fix_ampersands``
|
||||
Replaces ampersands with ``&`` entities.
|
||||
If value is unavailable, use given default.
|
||||
|
||||
``floatformat``
|
||||
Displays a floating point number as 34.2 (with one decimal places) - but
|
||||
only if there's a point to be displayed.
|
||||
default_if_none
|
||||
~~~~~~~~~~~~~~~
|
||||
|
||||
``get_digit``
|
||||
Given a whole number, returns the requested digit of it, where 1 is the
|
||||
right-most digit, 2 is the second-right-most digit, etc. Returns the
|
||||
original value for invalid input (if input or argument is not an integer,
|
||||
or if argument is less than 1). Otherwise, output is always an integer.
|
||||
If value is ``None``, use given default.
|
||||
|
||||
``join``
|
||||
Joins a list with a string, like Python's ``str.join(list)``.
|
||||
dictsort
|
||||
~~~~~~~~
|
||||
|
||||
``length``
|
||||
Returns the length of the value. Useful for lists.
|
||||
Takes a list of dicts, returns that list sorted by the property given in the
|
||||
argument.
|
||||
|
||||
``length_is``
|
||||
Returns a boolean of whether the value's length is the argument.
|
||||
dictsortreversed
|
||||
~~~~~~~~~~~~~~~~
|
||||
|
||||
``linebreaks``
|
||||
Converts newlines into <p> and <br />s.
|
||||
Takes a list of dicts, returns that list sorted in reverse order by the
|
||||
property given in the argument.
|
||||
|
||||
``linebreaksbr``
|
||||
Converts newlines into <br />s.
|
||||
divisibleby
|
||||
~~~~~~~~~~~
|
||||
|
||||
``linenumbers``
|
||||
Displays text with line numbers.
|
||||
Returns true if the value is divisible by the argument.
|
||||
|
||||
``ljust``
|
||||
Left-aligns the value in a field of a given width.
|
||||
escape
|
||||
~~~~~~
|
||||
|
||||
**Argument:** field size
|
||||
Escapes a string's HTML. Specifically, it makes these replacements:
|
||||
|
||||
``lower``
|
||||
Converts a string into all lowercase.
|
||||
* ``"&"`` to ``"&"``
|
||||
* ``<`` to ``"<"``
|
||||
* ``>`` to ``">"``
|
||||
* ``'"'`` (double quote) to ``"""``
|
||||
|
||||
``make_list``
|
||||
Returns the value turned into a list. For an integer, it's a list of
|
||||
digits. For a string, it's a list of characters.
|
||||
filesizeformat
|
||||
~~~~~~~~~~~~~~
|
||||
|
||||
``phone2numeric``
|
||||
Takes a phone number and converts it in to its numerical equivalent.
|
||||
Format the value like a 'human-readable' file size (i.e. 13 KB, 4.1 MB, 102
|
||||
bytes, etc).
|
||||
|
||||
``pluralize``
|
||||
Returns 's' if the value is not 1, for '1 vote' vs. '2 votes'.
|
||||
first
|
||||
~~~~~
|
||||
|
||||
``pprint``
|
||||
A wrapper around pprint.pprint -- for debugging, really.
|
||||
Returns the first item in a list.
|
||||
|
||||
``random``
|
||||
Returns a random item from the list.
|
||||
fix_ampersands
|
||||
~~~~~~~~~~~~~~
|
||||
|
||||
``removetags``
|
||||
Removes a space separated list of [X]HTML tags from the output.
|
||||
Replaces ampersands with ``&`` entities.
|
||||
|
||||
``rjust``
|
||||
Right-aligns the value in a field of a given width.
|
||||
floatformat
|
||||
|
||||
**Argument:** field size
|
||||
Displays a floating point number as 34.2 (with one decimal places) -- but only
|
||||
if there's a point to be displayed.
|
||||
|
||||
``slice``
|
||||
Returns a slice of the list.
|
||||
get_digit
|
||||
~~~~~~~~~
|
||||
|
||||
Uses the same syntax as Python's list slicing; see
|
||||
http://diveintopython.org/native_data_types/lists.html#odbchelper.list.slice
|
||||
for an introduction.
|
||||
Given a whole number, returns the requested digit of it, where 1 is the
|
||||
right-most digit, 2 is the second-right-most digit, etc. Returns the original
|
||||
value for invalid input (if input or argument is not an integer, or if argument
|
||||
is less than 1). Otherwise, output is always an integer.
|
||||
|
||||
Example: ``{{ some_list|slice:":2" }}``
|
||||
join
|
||||
~~~~
|
||||
|
||||
``slugify``
|
||||
Converts to lowercase, removes non-word characters (alphanumerics and
|
||||
underscores) and converts spaces to hyphens. Also strips leading and
|
||||
trailing whitespace.
|
||||
Joins a list with a string, like Python's ``str.join(list)``.
|
||||
|
||||
``stringformat``
|
||||
Formats the variable according to the argument, a string formatting specifier.
|
||||
This specifier uses Python string formating syntax, with the exception that
|
||||
the leading "%" is dropped.
|
||||
length
|
||||
~~~~~~
|
||||
|
||||
See http://docs.python.org/lib/typesseq-strings.html for documentation
|
||||
of Python string formatting
|
||||
Returns the length of the value. Useful for lists.
|
||||
|
||||
``striptags``
|
||||
Strips all [X]HTML tags.
|
||||
length_is
|
||||
~~~~~~~~~
|
||||
|
||||
``time``
|
||||
Formats a time according to the given format (same as the ``now`` tag).
|
||||
Returns a boolean of whether the value's length is the argument.
|
||||
|
||||
``timesince``
|
||||
Formats a date as the time since that date (i.e. "4 days, 6 hours").
|
||||
linebreaks
|
||||
~~~~~~~~~~
|
||||
|
||||
``title``
|
||||
Converts a string into titlecase.
|
||||
Converts newlines into <p> and <br />s.
|
||||
|
||||
``truncatewords``
|
||||
Truncates a string after a certain number of words.
|
||||
linebreaksbr
|
||||
~~~~~~~~~~~~
|
||||
|
||||
**Argument:** Number of words to truncate after
|
||||
Converts newlines into <br />s.
|
||||
|
||||
``unordered_list``
|
||||
Recursively takes a self-nested list and returns an HTML unordered list --
|
||||
WITHOUT opening and closing <ul> tags.
|
||||
linenumbers
|
||||
~~~~~~~~~~~
|
||||
|
||||
The list is assumed to be in the proper format. For example, if ``var`` contains
|
||||
``['States', [['Kansas', [['Lawrence', []], ['Topeka', []]]], ['Illinois', []]]]``,
|
||||
then ``{{ var|unordered_list }}`` would return::
|
||||
Displays text with line numbers.
|
||||
|
||||
ljust
|
||||
~~~~~
|
||||
|
||||
Left-aligns the value in a field of a given width.
|
||||
|
||||
**Argument:** field size
|
||||
|
||||
lower
|
||||
~~~~~
|
||||
|
||||
Converts a string into all lowercase.
|
||||
|
||||
make_list
|
||||
~~~~~~~~~
|
||||
|
||||
Returns the value turned into a list. For an integer, it's a list of
|
||||
digits. For a string, it's a list of characters.
|
||||
|
||||
phone2numeric
|
||||
~~~~~~~~~~~~~
|
||||
|
||||
Converts a phone number to its numerical equivalent.
|
||||
|
||||
pluralize
|
||||
~~~~~~~~~
|
||||
|
||||
Returns 's' if the value is not 1, for '1 vote' vs. '2 votes'.
|
||||
|
||||
pprint
|
||||
~~~~~~
|
||||
|
||||
A wrapper around pprint.pprint -- for debugging, really.
|
||||
|
||||
random
|
||||
~~~~~~
|
||||
|
||||
Returns a random item from the list.
|
||||
|
||||
removetags
|
||||
~~~~~~~~~~
|
||||
|
||||
Removes a space separated list of [X]HTML tags from the output.
|
||||
|
||||
rjust
|
||||
~~~~~
|
||||
|
||||
Right-aligns the value in a field of a given width.
|
||||
|
||||
**Argument:** field size
|
||||
|
||||
slice
|
||||
~~~~~
|
||||
|
||||
Returns a slice of the list.
|
||||
|
||||
Uses the same syntax as Python's list slicing. See
|
||||
http://diveintopython.org/native_data_types/lists.html#odbchelper.list.slice
|
||||
for an introduction.
|
||||
|
||||
Example: ``{{ some_list|slice:":2" }}``
|
||||
|
||||
slugify
|
||||
~~~~~~~
|
||||
|
||||
Converts to lowercase, removes non-word characters (alphanumerics and
|
||||
underscores) and converts spaces to hyphens. Also strips leading and trailing
|
||||
whitespace.
|
||||
|
||||
stringformat
|
||||
~~~~~~~~~~~~
|
||||
|
||||
Formats the variable according to the argument, a string formatting specifier.
|
||||
This specifier uses Python string formating syntax, with the exception that
|
||||
the leading "%" is dropped.
|
||||
|
||||
See http://docs.python.org/lib/typesseq-strings.html for documentation of
|
||||
Python string formatting
|
||||
|
||||
striptags
|
||||
~~~~~~~~~
|
||||
|
||||
Strips all [X]HTML tags.
|
||||
|
||||
time
|
||||
~~~~
|
||||
|
||||
Formats a time according to the given format (same as the ``now`` tag).
|
||||
|
||||
timesince
|
||||
~~~~~~~~~
|
||||
|
||||
Formats a date as the time since that date (i.e. "4 days, 6 hours").
|
||||
|
||||
title
|
||||
~~~~~
|
||||
|
||||
Converts a string into titlecase.
|
||||
|
||||
truncatewords
|
||||
~~~~~~~~~~~~~
|
||||
|
||||
Truncates a string after a certain number of words.
|
||||
|
||||
**Argument:** Number of words to truncate after
|
||||
|
||||
unordered_list
|
||||
~~~~~~~~~~~~~~
|
||||
|
||||
Recursively takes a self-nested list and returns an HTML unordered list --
|
||||
WITHOUT opening and closing <ul> tags.
|
||||
|
||||
The list is assumed to be in the proper format. For example, if ``var`` contains
|
||||
``['States', [['Kansas', [['Lawrence', []], ['Topeka', []]]], ['Illinois', []]]]``,
|
||||
then ``{{ var|unordered_list }}`` would return::
|
||||
|
||||
<li>States
|
||||
<ul>
|
||||
|
|
@ -817,39 +937,52 @@ Built-in filter reference
|
|||
</ul>
|
||||
</li>
|
||||
|
||||
``upper``
|
||||
Converts a string into all uppercase.
|
||||
upper
|
||||
~~~~~
|
||||
|
||||
``urlencode``
|
||||
Escapes a value for use in a URL.
|
||||
Converts a string into all uppercase.
|
||||
|
||||
``urlize``
|
||||
Converts URLs in plain text into clickable links.
|
||||
urlencode
|
||||
~~~~~~~~~
|
||||
|
||||
``urlizetrunc``
|
||||
Converts URLs into clickable links, truncating URLs to the given character
|
||||
limit.
|
||||
Escapes a value for use in a URL.
|
||||
|
||||
**Argument:** Length to truncate URLs to
|
||||
urlize
|
||||
~~~~~~
|
||||
|
||||
``wordcount``
|
||||
Returns the number of words.
|
||||
Converts URLs in plain text into clickable links.
|
||||
|
||||
``wordwrap``
|
||||
Wraps words at specified line length.
|
||||
urlizetrunc
|
||||
~~~~~~~~~~~
|
||||
|
||||
**Argument:** number of words at which to wrap the text
|
||||
Converts URLs into clickable links, truncating URLs to the given character limit.
|
||||
|
||||
``yesno``
|
||||
Given a string mapping values for true, false and (optionally) None,
|
||||
returns one of those strings according to the value:
|
||||
**Argument:** Length to truncate URLs to
|
||||
|
||||
========== ====================== ==================================
|
||||
Value Argument Outputs
|
||||
========== ====================== ==================================
|
||||
``True`` ``"yeah,no,maybe"`` ``yeah``
|
||||
``False`` ``"yeah,no,maybe"`` ``no``
|
||||
``None`` ``"yeah,no,maybe"`` ``maybe``
|
||||
``None`` ``"yeah,no"`` ``"no"`` (converts None to False
|
||||
wordcount
|
||||
~~~~~~~~~
|
||||
|
||||
Returns the number of words.
|
||||
|
||||
wordwrap
|
||||
~~~~~~~~
|
||||
|
||||
Wraps words at specified line length.
|
||||
|
||||
**Argument:** number of words at which to wrap the text
|
||||
|
||||
yesno
|
||||
~~~~~
|
||||
|
||||
Given a string mapping values for true, false and (optionally) None,
|
||||
returns one of those strings according to the value:
|
||||
|
||||
========== ====================== ==================================
|
||||
Value Argument Outputs
|
||||
========== ====================== ==================================
|
||||
``True`` ``"yeah,no,maybe"`` ``yeah``
|
||||
``False`` ``"yeah,no,maybe"`` ``no``
|
||||
``None`` ``"yeah,no,maybe"`` ``maybe``
|
||||
``None`` ``"yeah,no"`` ``"no"`` (converts None to False
|
||||
if no mapping for None is given)
|
||||
========== ====================== ==================================
|
||||
========== ====================== ==================================
|
||||
|
|
|
|||
Loading…
Reference in New Issue