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28 lines
780 B
ReStructuredText
28 lines
780 B
ReStructuredText
Catalogs
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========
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Catalogs are collections of providers. Main purpose of catalogs is to group
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providers.
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There are, actually, several popular cases of catalogs usage:
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- Grouping of providers from the same architectural layer (for example,
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``Services``, ``Models`` and ``Forms`` catalogs).
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- Grouping of providers from the same functional groups (for example,
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catalog ``Users``, that contains all functional parts of ``Users``
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component).
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Also, for both of these and some other cases, it might be useful to attach
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some init / shutdown functionality or something else, that deals with group
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of providers.
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Catalogs module API docs - :py:mod:`dependency_injector.catalogs`.
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.. toctree::
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:maxdepth: 2
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declarative
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dynamic
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specialization
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overriding
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