Update catalogs overriding docs

dependency_injector/catalogs.py

@@ -220,7 +220,7 @@ class DynamicCatalog(object):
 
     @property
     def is_overridden(self):
-        """Read-only property that is set to True if catalog is overridden.
+        """Read-only property that is set to ``True`` if catalog is overridden.
 
         :rtype: bool
         """
@@ -464,7 +464,7 @@ class DeclarativeCatalogMetaClass(type):
 
     @property
     def is_overridden(cls):
-        """Read-only property that is set to True if catalog is overridden.
+        """Read-only property that is set to ``True`` if catalog is overridden.
 
         :rtype: bool
         """
@@ -585,7 +585,7 @@ class DeclarativeCatalog(object):
     """
 
     is_overridden = bool
-    """Read-only property that is set to True if catalog is overridden.
+    """Read-only property that is set to ``True`` if catalog is overridden.
 
     :type: bool
     """
@@ -798,7 +798,7 @@ AbstractCatalog = DeclarativeCatalog
 
 
 def override(catalog):
-    """Catalog overriding decorator.
+    """:py:class:`DeclarativeCatalog` overriding decorator.
 
     :param catalog: Catalog that should be overridden by decorated catalog.
     :type catalog: :py:class:`dependency_injector.catalogs.DeclarativeCatalog`

docs/catalogs/overriding.rst

@@ -1,35 +1,49 @@
 Overriding of catalogs
 ----------------------
 
+.. module:: dependency_injector.catalogs
+
 Catalogs can be overridden by other catalogs. This, actually, means that 
 all of the providers from overriding catalog will override providers with the 
 same names in overridden catalog.
 
-There are two ways to override catalog by another catalog:
+There are two ways to override :py:class:`DeclarativeCatalog` with another 
+catalog:
 
-- Use ``di.DeclarativeCatalog.override(AnotherCatalog)`` method.
-- Use ``@di.override(AnotherCatalog)`` class decorator.
+- Use :py:meth:`DeclarativeCatalog.override` method.
+- Use :py:func:`override` class decorator.
 
-Example of overriding catalog using ``di.DeclarativeCatalog.override()`` 
+Example of overriding catalog using :py:meth:`DeclarativeCatalog.override` 
 method:
 
-.. literalinclude:: ../../examples/catalogs/override.py
+.. literalinclude:: ../../examples/catalogs/override_declarative.py
    :language: python
 
-Example of overriding catalog using ``@di.override()`` decorator:
+Example of overriding catalog using :py:func:`override` decorator:
 
-.. literalinclude:: ../../examples/catalogs/override_decorator.py
+.. literalinclude:: ../../examples/catalogs/override_declarative_decorator.py
    :language: python
 
-Also there are several useful methods and properties that help to work with 
-catalog overridings:
+Also there are several useful :py:class:`DeclarativeCatalog`  methods and 
+properties that help to work with catalog overridings:
 
-- ``di.DeclarativeCatalog.is_overridden`` - read-only, evaluated in runtime, 
-  property that is set to True if catalog is overridden.
-- ``di.DeclarativeCatalog.last_overriding`` - reference to the last overriding 
-  catalog, if any.
-- ``di.DeclarativeCatalog.overridden_by`` - tuple of all overriding catalogs.
-- ``di.DeclarativeCatalog.reset_last_overriding()`` - reset last overriding 
-  catalog.
-- ``di.DeclarativeCatalog.reset_override()`` - reset all overridings for all 
-  catalog providers. 
+- :py:attr:`DeclarativeCatalog.is_overridden` - read-only property that is set 
+  to ``True`` if catalog is overridden.
+- :py:attr:`DeclarativeCatalog.last_overriding` - read-only reference to 
+  the last overriding catalog, if any.
+- :py:attr:`DeclarativeCatalog.overridden_by` - tuple of all overriding 
+  catalogs.
+- :py:meth:`DeclarativeCatalog.reset_last_overriding()` - reset last 
+  overriding catalog.
+- :py:meth:`DeclarativeCatalog.reset_override()` - reset all overridings for 
+  all catalog providers. 
+
+:py:class:`DynamicCatalog` has exactly the same functionality, except of 
+:py:func:`override` decorator. Also :py:class:`DynamicCatalog` can override 
+:py:class:`DeclarativeCatalog` and vise versa.
+
+Example of overriding :py:class:`DeclarativeCatalog` by 
+:py:class:`DynamicCatalog`:
+
+.. literalinclude:: ../../examples/catalogs/override_declarative_by_dynamic.py
+   :language: python

examples/catalogs/override.py

@@ -1,44 +0,0 @@
-"""Catalog overriding example."""
-
-import collections
-import dependency_injector as di
-
-
-# Creating some example classes:
-Object1 = collections.namedtuple('Object1', ['arg1', 'arg2'])
-Object2 = collections.namedtuple('Object2', ['object1'])
-ExtendedObject2 = collections.namedtuple('ExtendedObject2', [])
-
-
-class Catalog(di.DeclarativeCatalog):
-    """Providers catalog."""
-
-    object1_factory = di.Factory(Object1,
-                                 arg1=1,
-                                 arg2=2)
-    """:type: di.Provider -> Object1"""
-
-    object2_factory = di.Factory(Object2,
-                                 object1=object1_factory)
-    """:type: di.Provider -> Object2"""
-
-
-class AnotherCatalog(di.DeclarativeCatalog):
-    """Another providers catalog."""
-
-    object2_factory = di.Factory(ExtendedObject2)
-    """:type: di.Provider -> ExtendedObject2"""
-
-
-# Overriding `Catalog` with `AnotherCatalog`:
-Catalog.override(AnotherCatalog)
-
-# Creating some objects using overridden catalog:
-object2_1 = Catalog.object2_factory()
-object2_2 = Catalog.object2_factory()
-
-# Making some asserts:
-assert object2_1 is not object2_2
-
-assert isinstance(object2_1, ExtendedObject2)
-assert isinstance(object2_2, ExtendedObject2)

examples/catalogs/override_declarative.py

@@ -0,0 +1,48 @@
+"""Declarative catalog overriding example."""
+
+import collections
+
+from dependency_injector import catalogs
+from dependency_injector import providers
+
+
+# Creating some example classes:
+Object1 = collections.namedtuple('Object1', ['arg1', 'arg2'])
+Object2 = collections.namedtuple('Object2', ['object1'])
+ExtendedObject2 = collections.namedtuple('ExtendedObject2', [])
+
+
+class Catalog(catalogs.DeclarativeCatalog):
+    """Catalog of some providers."""
+
+    object1_factory = providers.Factory(Object1,
+                                        arg1=1,
+                                        arg2=2)
+    """:type: providers.Provider -> Object1"""
+
+    object2_factory = providers.Factory(Object2,
+                                        object1=object1_factory)
+    """:type: providers.Provider -> Object2"""
+
+
+class AnotherCatalog(catalogs.DeclarativeCatalog):
+    """Overriding catalog."""
+
+    object2_factory = providers.Factory(ExtendedObject2)
+    """:type: providers.Provider -> ExtendedObject2"""
+
+
+# Overriding `Catalog` with `AnotherCatalog`:
+Catalog.override(AnotherCatalog)
+
+# Creating some objects using overridden catalog:
+object2_1 = Catalog.object2_factory()
+object2_2 = Catalog.object2_factory()
+
+# Making some asserts:
+assert Catalog.is_overridden
+
+assert object2_1 is not object2_2
+
+assert isinstance(object2_1, ExtendedObject2)
+assert isinstance(object2_2, ExtendedObject2)

examples/catalogs/override_declarative_by_dynamic.py

@@ -0,0 +1,43 @@
+"""Declarative catalog overriding by dynamic catalog example."""
+
+import collections
+
+from dependency_injector import catalogs
+from dependency_injector import providers
+
+
+# Creating some example classes:
+Object1 = collections.namedtuple('Object1', ['arg1', 'arg2'])
+Object2 = collections.namedtuple('Object2', ['object1'])
+ExtendedObject2 = collections.namedtuple('ExtendedObject2', [])
+
+
+class Catalog(catalogs.DeclarativeCatalog):
+    """Catalog of some providers."""
+
+    object1_factory = providers.Factory(Object1,
+                                        arg1=1,
+                                        arg2=2)
+    """:type: providers.Provider -> Object1"""
+
+    object2_factory = providers.Factory(Object2,
+                                        object1=object1_factory)
+    """:type: providers.Provider -> Object2"""
+
+
+# Overriding `Catalog` with some `DynamicCatalog` instance:
+overriding_catalog = catalogs.DynamicCatalog(
+    object2_factory=providers.Factory(ExtendedObject2))
+Catalog.override(overriding_catalog)
+
+# Creating some objects using overridden catalog:
+object2_1 = Catalog.object2_factory()
+object2_2 = Catalog.object2_factory()
+
+# Making some asserts:
+assert Catalog.is_overridden
+
+assert object2_1 is not object2_2
+
+assert isinstance(object2_1, ExtendedObject2)
+assert isinstance(object2_2, ExtendedObject2)

examples/catalogs/override_declarative_decorator.py

@@ -0,0 +1,46 @@
+"""Declarative catalog overriding using `@override()` decorator example."""
+
+import collections
+
+from dependency_injector import catalogs
+from dependency_injector import providers
+
+# Creating some example classes:
+Object1 = collections.namedtuple('Object1', ['arg1', 'arg2'])
+Object2 = collections.namedtuple('Object2', ['object1'])
+ExtendedObject2 = collections.namedtuple('ExtendedObject2', [])
+
+
+class Catalog(catalogs.DeclarativeCatalog):
+    """Catalog of some providers."""
+
+    object1_factory = providers.Factory(Object1,
+                                        arg1=1,
+                                        arg2=2)
+    """:type: providers.Provider -> Object1"""
+
+    object2_factory = providers.Factory(Object2,
+                                        object1=object1_factory)
+    """:type: providers.Provider -> Object2"""
+
+
+# Overriding `Catalog` with `AnotherCatalog`:
+@catalogs.override(Catalog)
+class AnotherCatalog(catalogs.DeclarativeCatalog):
+    """Overriding catalog."""
+
+    object2_factory = providers.Factory(ExtendedObject2)
+    """:type: providers.Provider -> ExtendedObject2"""
+
+
+# Creating some objects using overridden catalog:
+object2_1 = Catalog.object2_factory()
+object2_2 = Catalog.object2_factory()
+
+# Making some asserts:
+assert Catalog.is_overridden
+
+assert object2_1 is not object2_2
+
+assert isinstance(object2_1, ExtendedObject2)
+assert isinstance(object2_2, ExtendedObject2)

examples/catalogs/override_decorator.py

@@ -1,43 +0,0 @@
-"""Catalog overriding using `@di.override()` decorator example."""
-
-import collections
-import dependency_injector as di
-
-
-# Creating some example classes:
-Object1 = collections.namedtuple('Object1', ['arg1', 'arg2'])
-Object2 = collections.namedtuple('Object2', ['object1'])
-ExtendedObject2 = collections.namedtuple('ExtendedObject2', [])
-
-
-class Catalog(di.DeclarativeCatalog):
-    """Providers catalog."""
-
-    object1_factory = di.Factory(Object1,
-                                 arg1=1,
-                                 arg2=2)
-    """:type: di.Provider -> Object1"""
-
-    object2_factory = di.Factory(Object2,
-                                 object1=object1_factory)
-    """:type: di.Provider -> Object2"""
-
-
-# Overriding `Catalog` with `AnotherCatalog`:
-@di.override(Catalog)
-class AnotherCatalog(di.DeclarativeCatalog):
-    """Another providers catalog."""
-
-    object2_factory = di.Factory(ExtendedObject2)
-    """:type: di.Provider -> ExtendedObject2"""
-
-
-# Creating some objects using overridden catalog:
-object2_1 = Catalog.object2_factory()
-object2_2 = Catalog.object2_factory()
-
-# Making some asserts:
-assert object2_1 is not object2_2
-
-assert isinstance(object2_1, ExtendedObject2)
-assert isinstance(object2_2, ExtendedObject2)