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39 lines
1.3 KiB
ReStructuredText
39 lines
1.3 KiB
ReStructuredText
.. _provided-instance:
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Injecting provided object attributes, items, or call its methods
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================================================================
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.. meta::
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:keywords: Python,DI,Dependency injection,IoC,Inversion of Control,Attribute,Method,Call
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:description: This page demonstrates how to inject attributes, items or call method of the
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provided instance.
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.. currentmodule:: dependency_injector.providers
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You can inject provided object attribute, item or result of its method call.
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.. literalinclude:: ../../examples/providers/provided_instance.py
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:language: python
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:emphasize-lines: 28-34
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:lines: 3-
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To use the feature you should use the ``.provided`` attribute of the injected provider. This
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attribute helps to specify what happens with the provided instance before the injection. You can
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use any combination of the following:
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- an attribute of the provided object
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- an item of the provided object
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- a call of the provided object method
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When you use a call of the provided instance method you can specify the injections for this
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method like you do with any other provider.
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You can do nested constructions:
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.. literalinclude:: ../../examples/providers/provided_instance_complex.py
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:language: python
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:emphasize-lines: 26-32
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:lines: 3-
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.. disqus::
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