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Update readme with new concept example

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Roman Mogilatov 2015-09-01 00:36:02 +03:00
parent 01970dba27
commit 234e5cb3fc
1 changed files with 16 additions and 25 deletions
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41
README.rst
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@ -65,16 +65,8 @@ Examples
"""Concept example of `Dependency Injector`."""
from dependency_injector.catalog import AbstractCatalog
from dependency_injector.providers import Factory
from dependency_injector.providers import Singleton
from dependency_injector.injections import KwArg
from dependency_injector.injections import Attribute
from dependency_injector.injections import inject
import sqlite3
import dependency_injector as di
class ObjectA(object):
@ -96,23 +88,22 @@ Examples
self.db = db
class Catalog(AbstractCatalog):
class Catalog(di.AbstractCatalog):
"""Catalog of dependency_injector providers."""
"""Catalog of providers."""
database = Singleton(sqlite3.Connection,
KwArg('database', ':memory:'),
Attribute('row_factory', sqlite3.Row))
""":type: (dependency_injector.Provider) -> sqlite3.Connection"""
database = di.Singleton(sqlite3.Connection,
database=':memory:')
""":type: (di.Provider) -> sqlite3.Connection"""
object_a_factory = Factory(ObjectA,
KwArg('db', database))
""":type: (dependency_injector.Provider) -> ObjectA"""
object_a_factory = di.Factory(ObjectA,
db=database)
""":type: (di.Provider) -> ObjectA"""
object_b_factory = Factory(ObjectB,
KwArg('a', object_a_factory),
KwArg('db', database))
""":type: (dependency_injector.Provider) -> ObjectB"""
object_b_factory = di.Factory(ObjectB,
a=object_a_factory,
db=database)
""":type: (di.Provider) -> ObjectB"""
# Catalog static provides.
@ -125,9 +116,9 @@ Examples
# Example of inline injections.
@inject(KwArg('a', Catalog.object_a_factory))
@inject(KwArg('b', Catalog.object_b_factory))
@inject(KwArg('database', Catalog.database))
@di.inject(a=Catalog.object_a_factory)
@di.inject(b=Catalog.object_b_factory)
@di.inject(database=Catalog.database)
def example(a, b, database):
"""Example callback."""
assert a.db is b.db is database is Catalog.database()