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Fixed documentation links to Query Expression API.
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@ -15,7 +15,7 @@ the ``WHERE`` clause of a database query. To learn how to *use* lookups, see
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:doc:`/howto/custom-lookups`.
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The lookup API has two components: a :class:`~lookups.RegisterLookupMixin` class
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that registers lookups, and the `Query Expression API <query-expression>`_, a
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that registers lookups, and the :ref:`Query Expression API <query-expression>`, a
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set of methods that a class has to implement to be registrable as a lookup.
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Django has two base classes that follow the query expression API and from where
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@ -65,8 +65,8 @@ register lookups on itself. The two prominent examples are
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has the registered transform named ``transform_name``, returning the first
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match.
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For a class to be a lookup, it must follow the `Query Expression API
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<query-expression>`_. :class:`~Lookup` and :class:`~Transform` naturally
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For a class to be a lookup, it must follow the :ref:`Query Expression API
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<query-expression>`. :class:`~Lookup` and :class:`~Transform` naturally
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follow this API.
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.. _query-expression:
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@ -126,13 +126,13 @@ Transform reference
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The notation to use a ``Transform`` in an lookup expression is
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``<expression>__<transformation>`` (e.g. ``date__year``).
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This class follows the `Query Expression API <query-expression>`_, which
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This class follows the :ref:`Query Expression API <query-expression>`, which
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implies that you can use ``<expression>__<transform1>__<transform2>``.
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.. attribute:: lhs
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The left-hand side - what is being transformed. It must follow the
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`Query Expression API <query-expression>`_.
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:ref:`Query Expression API <query-expression>`.
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.. attribute:: lookup_name
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@ -171,14 +171,14 @@ Lookup reference
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The notation to use a lookup in an expression is
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``<lhs>__<lookup_name>=<rhs>``.
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This class doesn't follow the `Query Expression API <query-expression>`_
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This class doesn't follow the :ref:`Query Expression API <query-expression>`
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since it has ``=<rhs>`` on its construction: lookups are always the end of
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a lookup expression.
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.. attribute:: lhs
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The left-hand side - what is being looked up. The object must follow
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the `Query Expression API <query-expression>`_.
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the :ref:`Query Expression API <query-expression>`.
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.. attribute:: rhs
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