Update movie lister example

dependency_injector/containers.py

@@ -91,14 +91,46 @@ class DeclarativeContainer(object):
 def override(container):
     """:py:class:`DeclarativeContainer` overriding decorator.
 
-    :param catalog: Container that should be overridden by decorated container.
+    :param container: Container that should be overridden by decorated
-    :type catalog: :py:class:`DeclarativeContainer`
+                      container.
+    :type container: :py:class:`DeclarativeContainer`
 
     :return: Declarative container's overriding decorator.
     :rtype: callable(:py:class:`DeclarativeContainer`)
     """
-    def decorator(overriding_container):
+    def _decorator(overriding_container):
         """Overriding decorator."""
         container.override(overriding_container)
         return overriding_container
-    return decorator
+    return _decorator
+
+
+def copy(container):
+    """:py:class:`DeclarativeContainer` copying decorator.
+
+    This decorator copy all providers from provided container to decorated one.
+    If one of the decorated container providers matches to source container
+    providers by name, it would be replaced by reference.
+
+    :param container: Container that should be copied by decorated container.
+    :type container :py:class:`DeclarativeContainer`
+
+    :return: Declarative container's copying decorator.
+    :rtype: callable(:py:class:`DeclarativeContainer`)
+    """
+    def _decorator(copied_container):
+        memo = dict()
+        for name, provider in six.iteritems(copied_container.cls_providers):
+            try:
+                source_provider = getattr(container, name)
+            except AttributeError:
+                pass
+            else:
+                memo[id(source_provider)] = provider
+
+        providers_copy = utils._copy_providers(container.providers, memo)
+        for name, provider in six.iteritems(providers_copy):
+            setattr(copied_container, name, provider)
+
+        return copied_container
+    return _decorator

examples/miniapps/movie_lister/app_csv.py

@@ -24,9 +24,9 @@ class MyMoviesModule(containers.DeclarativeContainer):
     """IoC container for overriding movies module component providers."""
 
     movie_finder = providers.Factory(finders.CsvMovieFinder,
-                                     movie_model=MoviesModule.movie_model,
                                      csv_file=MOVIES_CSV_PATH,
-                                     delimeter=',')
+                                     delimeter=',',
+                                     **MoviesModule.movie_finder.kwargs)
 
 
 @injections.inject(MoviesModule.movie_lister)

examples/miniapps/movie_lister/app_db.py

@@ -32,8 +32,8 @@ class MyMoviesModule(containers.DeclarativeContainer):
     """IoC container for overriding movies module component providers."""
 
     movie_finder = providers.Factory(finders.SqliteMovieFinder,
-                                     movie_model=MoviesModule.movie_model,
+                                     database=ApplicationModule.database,
-                                     database=ApplicationModule.database)
+                                     **MoviesModule.movie_finder.kwargs)
 
 
 @injections.inject(MoviesModule.movie_lister)

examples/miniapps/movie_lister/app_db_csv.py

@@ -33,8 +33,8 @@ class DbMoviesModule(MoviesModule):
     """IoC container for overriding movies module component providers."""
 
     movie_finder = providers.Factory(finders.SqliteMovieFinder,
-                                     movie_model=MoviesModule.movie_model,
+                                     database=ApplicationModule.database,
-                                     database=ApplicationModule.database)
+                                     **MoviesModule.movie_finder.kwargs)
 
 
 @containers.copy(MoviesModule)
@@ -42,9 +42,9 @@ class CsvMoviesModule(MoviesModule):
     """IoC container for overriding movies module component providers."""
 
     movie_finder = providers.Factory(finders.CsvMovieFinder,
-                                     movie_model=MoviesModule.movie_model,
                                      csv_file=MOVIES_CSV_PATH,
-                                     delimeter=',')
+                                     delimeter=',',
+                                     **MoviesModule.movie_finder.kwargs)
 
 
 @injections.inject(db_movie_lister=DbMoviesModule.movie_lister)