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[Autowiring] - Rephrase aliasing when multiple classes with same interface #9755

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[Autowiring] - Rephrase aliasing when multiple classes with same interface #9755

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Autowiring - Rephrase aliasing when multiple classes implement same i…
Plopix May 10, 2018
a93995d
Fixed formatting
javiereguiluz May 16, 2018
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8 changes: 5 additions & 3 deletions service_container/autowiring.rst
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Expand Up @@ -358,9 +358,11 @@ Suppose you create a second class - ``UppercaseTransformer`` that implements
}

If you register this as a service, you now have *two* services that implement the
``App\Util\TransformerInterface`` type. Symfony doesn't know which one should
be used for autowiring, so you need to choose one by creating an alias from the type
to the correct service id (see :ref:`autowiring-interface-alias`).
``App\Util\TransformerInterface`` type. Autowiring subsystem can not decide which
one to use. Remember, Autowiring isn't magic: it simply
looks for a service whose id matches the type-hint. So you need to choose one by
creating an alias from the type to the correct service id
(see :ref:`autowiring-interface-alias`).

If you want ``Rot13Transformer`` to be the service that's used for autowiring, create
that alias:
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