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Fabien Potencier
40 lines
1.2 KiB
ReStructuredText
40 lines
1.2 KiB
ReStructuredText
``attribute``
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=============
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The ``attribute`` function lets you access an attribute, method, or property of
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an object or array when the name of that attribute, method, or property is stored
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in a variable or dynamically generated with an expression:
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.. code-block:: twig
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{# method_name is a variable that stores the method to call #}
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{{ attribute(object, method_name) }}
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{# you can also pass arguments when calling a method #}
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{{ attribute(object, method_name, arguments) }}
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{# the method/property name can be the result of evaluating an expression #}
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{{ attribute(object, 'some_property_' ~ user.type) }}
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{# in addition to objects, this function works with plain arrays as well #}
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{{ attribute(array, item_name) }}
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In addition, the ``defined`` test can check for the existence of a dynamic
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attribute:
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.. code-block:: twig
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{{ attribute(object, method) is defined ? 'Method exists' : 'Method does not exist' }}
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.. note::
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The resolution algorithm is the same as the one used for the ``.``
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operator.
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Arguments
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---------
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* ``variable``: The variable
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* ``attribute``: The attribute name
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* ``arguments``: An array of arguments to pass to the call
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