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Update provider docs
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@ -30,7 +30,6 @@ injections:
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.. literalinclude:: ../../examples/providers/callable_args.py
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:language: python
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:linenos:
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Next one example shows usage of :py:class:`Callable` with keyword argument
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injections:
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@ -41,7 +40,6 @@ injections:
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.. literalinclude:: ../../examples/providers/callable_kwargs.py
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:language: python
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:linenos:
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.. _callable_providers_delegation:
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@ -9,7 +9,6 @@ Configuration providers
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:language: python
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:emphasize-lines: 4,9-10
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:lines: 4-14
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:linenos:
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It implements "use first, define later" principle.
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@ -23,13 +22,11 @@ Loading from ``ini`` file
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:language: python
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:lines: 3-5,6-
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:emphasize-lines: 6
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:linenos:
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where ``examples/providers/configuration/config.ini`` is:
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.. literalinclude:: ../../examples/providers/configuration/config.ini
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:language: ini
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:linenos:
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:py:meth:`Configuration.from_ini` supports environment variables interpolation. Use
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``${ENV_NAME}`` format in the configuration file to substitute value of environment
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@ -45,13 +42,11 @@ Loading from ``yaml`` file
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:language: python
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:lines: 3-5,6-
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:emphasize-lines: 6
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:linenos:
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where ``examples/providers/configuration/config.yml`` is:
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.. literalinclude:: ../../examples/providers/configuration/config.yml
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:language: ini
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:linenos:
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:py:meth:`Configuration.from_yaml` supports environment variables interpolation. Use
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``${ENV_NAME}`` format in the configuration file to substitute value of environment
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@ -73,7 +68,6 @@ Loading from ``dict``
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:language: python
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:lines: 3-5,6-
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:emphasize-lines: 6-13
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:linenos:
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Loading from environment variable
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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@ -85,7 +79,6 @@ Loading from environment variable
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:language: python
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:lines: 5-7,13-21
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:emphasize-lines: 6-8
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:linenos:
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Loading from multiple sources
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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@ -97,12 +90,10 @@ configuration is merged recursively over existing configuration.
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:language: python
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:lines: 3-5,6-14
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:emphasize-lines: 6-7
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:linenos:
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where ``examples/providers/configuration/config.local.yml`` is:
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.. literalinclude:: ../../examples/providers/configuration/config.local.yml
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:language: ini
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:linenos:
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.. disqus::
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@ -18,7 +18,6 @@ coroutine:
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.. literalinclude:: ../../examples/providers/coroutine_async_await.py
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:language: python
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:linenos:
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Coroutine providers and injections
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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@ -30,7 +30,6 @@ Example:
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.. literalinclude:: ../../examples/providers/custom_factory.py
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:language: python
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:linenos:
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.. disqus::
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@ -39,6 +39,5 @@ Example:
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.. literalinclude:: ../../examples/providers/dependency.py
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:language: python
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:linenos:
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.. disqus::
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@ -14,7 +14,6 @@ Nothing could be better than brief example:
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.. literalinclude:: ../../examples/providers/factory.py
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:language: python
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:linenos:
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Factory providers and __init__ injections
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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@ -48,7 +47,6 @@ injectable values are also provided by another factories:
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.. literalinclude:: ../../examples/providers/factory_init_injections.py
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:language: python
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:linenos:
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.. _factory_providers_delegation:
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@ -92,7 +90,6 @@ Example:
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.. literalinclude:: ../../examples/providers/factory_delegation.py
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:language: python
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:linenos:
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.. _factory_providers_specialization:
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@ -107,7 +104,6 @@ provided type:
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.. literalinclude:: ../../examples/providers/factory_provided_type.py
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:language: python
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:linenos:
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.. _abstract_factory_providers:
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@ -142,13 +138,11 @@ Listing of ``cache.py``:
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.. literalinclude:: ../../examples/providers/abstract_factory/cache.py
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:language: python
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:linenos:
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Listing of ``example.py``:
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.. literalinclude:: ../../examples/providers/abstract_factory/example.py
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:language: python
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:linenos:
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Factory aggregate providers
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~~~~~~~~~~~~~~~~~~~~~~~~~~~
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@ -167,7 +161,6 @@ Next prototype might be the best demonstration of
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.. literalinclude:: ../../examples/providers/factory_aggregate/prototype.py
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:language: python
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:linenos:
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Example below shows one of the :py:class:`FactoryAggregate` use cases, when
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concrete implementation (game) must be selected based on dynamic input (CLI).
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@ -176,12 +169,10 @@ Listing of ``games.py``:
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.. literalinclude:: ../../examples/providers/factory_aggregate/games.py
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:language: python
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:linenos:
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Listing of ``example.py``:
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.. literalinclude:: ../../examples/providers/factory_aggregate/example.py
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:language: python
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:linenos:
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.. disqus::
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@ -9,7 +9,6 @@ List providers
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:language: python
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:emphasize-lines: 6-9
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:lines: 6-8, 23-29
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:linenos:
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:py:class:`List` provider is needed for injecting a list of dependencies. It handles
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positional argument injections the same way as :py:class:`Factory` provider:
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@ -27,7 +26,6 @@ Full example:
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:language: python
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:emphasize-lines: 23-26
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:lines: 3-
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:linenos:
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.. note::
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@ -9,7 +9,6 @@ Example:
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.. literalinclude:: ../../examples/providers/object.py
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:language: python
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:linenos:
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.. disqus::
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@ -33,7 +33,6 @@ Example:
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.. literalinclude:: ../../examples/providers/overriding_simple.py
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:language: python
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:linenos:
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Example:
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@ -43,7 +42,6 @@ Example:
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.. literalinclude:: ../../examples/providers/overriding_users_model.py
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:language: python
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:linenos:
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.. disqus::
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@ -9,7 +9,6 @@ Selector providers
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:language: python
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:emphasize-lines: 6-10
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:lines: 3-5,14-20
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:linenos:
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:py:class:`Selector` provider has a callable called ``selector`` and a dictionary of providers.
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@ -26,6 +25,5 @@ Full example:
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:language: python
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:emphasize-lines: 14-18
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:lines: 3-
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:linenos:
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.. disqus::
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@ -14,7 +14,6 @@ Example:
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.. literalinclude:: ../../examples/providers/singleton.py
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:language: python
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:linenos:
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Singleton providers resetting
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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@ -28,7 +27,6 @@ Example:
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.. literalinclude:: ../../examples/providers/singleton_resetting.py
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:language: python
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:linenos:
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Singleton providers and injections
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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@ -108,7 +106,6 @@ Example:
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.. literalinclude:: ../../examples/providers/singleton_thread_locals.py
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:language: python
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:linenos:
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.. disqus::
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@ -10,19 +10,27 @@ cache_client_factory = providers.AbstractFactory(cache.AbstractCacheClient)
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if __name__ == '__main__':
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# Override abstract factory with redis client factory:
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cache_client_factory.override(providers.Factory(cache.RedisCacheClient,
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host='localhost',
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port=6379,
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db=0))
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cache_client_factory.override(
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providers.Factory(
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cache.RedisCacheClient,
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host='localhost',
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port=6379,
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db=0,
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),
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)
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redis_cache = cache_client_factory()
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print(redis_cache) # <cache.RedisCacheClient object at 0x10975bc50>
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print(redis_cache)
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# <cache.RedisCacheClient object at 0x10975bc50>
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# Override abstract factory with memcache client factory:
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cache_client_factory.override(providers.Factory(cache.MemcacheCacheClient,
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hosts=['10.0.1.1',
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'10.0.1.2',
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'10.0.1.3'],
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port=11211,
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prefix='my_app'))
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cache_client_factory.override(
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providers.Factory(
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cache.MemcacheCacheClient,
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hosts=['10.0.1.1', '10.0.1.2', '10.0.1.3'],
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port=11211,
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prefix='my_app',
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),
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)
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memcache_cache = cache_client_factory()
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print(memcache_cache) # <cache.MemcacheCacheClient object at 0x10975bc90>
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print(memcache_cache)
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# <cache.MemcacheCacheClient object at 0x10975bc90>
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@ -7,9 +7,11 @@ import dependency_injector.providers as providers
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from games import Chess, Checkers, Ludo
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game_factory = providers.FactoryAggregate(chess=providers.Factory(Chess),
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checkers=providers.Factory(Checkers),
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ludo=providers.Factory(Ludo))
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game_factory = providers.FactoryAggregate(
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chess=providers.Factory(Chess),
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checkers=providers.Factory(Checkers),
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ludo=providers.Factory(Ludo),
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)
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if __name__ == '__main__':
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game_type = sys.argv[1].lower()
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@ -26,27 +26,36 @@ class User:
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# Defining User and Photo factories using DelegatedFactory provider:
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photos_factory = providers.DelegatedFactory(Photo)
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users_factory = providers.DelegatedFactory(User,
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photos_factory=photos_factory)
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users_factory = providers.DelegatedFactory(
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User,
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photos_factory=photos_factory,
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)
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# or using Delegate(Factory(...))
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photos_factory = providers.Factory(Photo)
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users_factory = providers.Factory(User,
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photos_factory=providers.Delegate(
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photos_factory))
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users_factory = providers.Factory(
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User,
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photos_factory=providers.Delegate(photos_factory),
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)
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# or using Factory(...).delegate()
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photos_factory = providers.Factory(Photo)
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users_factory = providers.Factory(User,
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photos_factory=photos_factory.delegate())
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users_factory = providers.Factory(
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User,
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photos_factory=photos_factory.delegate(),
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)
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# Creating several User objects:
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user1 = users_factory() # Same as: user1 = User(photos_factory=photos_factory)
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user2 = users_factory() # Same as: user2 = User(photos_factory=photos_factory)
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user1 = users_factory()
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user2 = users_factory()
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# Same as:
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# user1 = User(photos_factory=photos_factory)
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# user2 = User(photos_factory=photos_factory)
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# Making some asserts:
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assert isinstance(user1.main_photo, Photo)
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@ -55,13 +64,18 @@ assert isinstance(user2.main_photo, Photo)
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# or using Factory(...).provider
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photos_factory = providers.Factory(Photo)
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users_factory = providers.Factory(User,
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photos_factory=photos_factory.provider)
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users_factory = providers.Factory(
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User,
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photos_factory=photos_factory.provider,
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)
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# Creating several User objects:
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user1 = users_factory() # Same as: user1 = User(photos_factory=photos_factory)
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user2 = users_factory() # Same as: user2 = User(photos_factory=photos_factory)
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user1 = users_factory()
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user2 = users_factory()
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# Same as:
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# user1 = User(photos_factory=photos_factory)
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# user2 = User(photos_factory=photos_factory)
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# Making some asserts:
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assert isinstance(user1.main_photo, Photo)
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@ -7,8 +7,8 @@ import dependency_injector.providers as providers
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UsersService = collections.namedtuple('UsersService', [])
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# Singleton provider creates new instance of specified class on first call and
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# returns same instance on every next call.
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# Singleton provider creates new instance of specified class on first call
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# and returns same instance on every next call.
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users_service_provider = providers.Singleton(UsersService)
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# Retrieving several UserService objects:
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@ -18,19 +18,22 @@ thread_local_object = providers.ThreadLocalSingleton(object)
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queue_factory = providers.ThreadSafeSingleton(queue.Queue)
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# Create callable provider for example(), inject dependencies:
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example = providers.DelegatedCallable(example,
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example_object=thread_local_object,
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queue_object=queue_factory)
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example = providers.DelegatedCallable(
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example,
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example_object=thread_local_object,
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queue_object=queue_factory,
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)
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# Create factory provider for threads that are targeted to execute example():
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thread_factory = providers.Factory(threading.Thread,
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target=example)
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# Create factory for threads that are targeted to execute example():
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thread_factory = providers.Factory(threading.Thread, target=example)
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if __name__ == '__main__':
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# Create 10 threads for concurrent execution of example():
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threads = []
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for thread_number in range(10):
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threads.append(thread_factory(name='Thread{0}'.format(thread_number)))
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threads.append(
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thread_factory(name='Thread{0}'.format(thread_number)),
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)
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# Start execution of all created threads:
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for thread in threads:
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