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| author | Michael Merickel <michael@merickel.org> | 2015-11-12 12:56:27 -0600 |
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| committer | Michael Merickel <michael@merickel.org> | 2015-11-12 12:56:46 -0600 |
| commit | 414b67b45bab156b9738105e180908c4eee8600a (patch) | |
| tree | 6a9ee22d939c88f35786da0f06ff32b98102e374 /docs/tutorials/wiki2/basiclayout.rst | |
| parent | b4c96d2892d8271b300b1920e3ce5d2c0eae588b (diff) | |
| download | pyramid-414b67b45bab156b9738105e180908c4eee8600a.tar.gz pyramid-414b67b45bab156b9738105e180908c4eee8600a.tar.bz2 pyramid-414b67b45bab156b9738105e180908c4eee8600a.zip | |
Restore progress after backing changes out of master.
This reverts commit 049e670aef9ea5611561546fd5c0e2dd6152b9b7.
Diffstat (limited to 'docs/tutorials/wiki2/basiclayout.rst')
| -rw-r--r-- | docs/tutorials/wiki2/basiclayout.rst | 98 |
1 files changed, 55 insertions, 43 deletions
diff --git a/docs/tutorials/wiki2/basiclayout.rst b/docs/tutorials/wiki2/basiclayout.rst index 649c11e85..abe9e4202 100644 --- a/docs/tutorials/wiki2/basiclayout.rst +++ b/docs/tutorials/wiki2/basiclayout.rst @@ -12,12 +12,12 @@ Application configuration with ``__init__.py`` A directory on disk can be turned into a Python :term:`package` by containing an ``__init__.py`` file. Even if empty, this marks a directory as a Python -package. We use ``__init__.py`` both as a marker, indicating the directory -in which it's contained is a package, and to contain application configuration +package. We use ``__init__.py`` both as a marker, indicating the directory in +which it's contained is a package, and to contain application configuration code. -Open ``tutorial/tutorial/__init__.py``. It should already contain -the following: +Open ``tutorial/tutorial/__init__.py``. It should already contain the +following: .. literalinclude:: src/basiclayout/tutorial/__init__.py :linenos: @@ -43,58 +43,37 @@ When you invoke the ``pserve development.ini`` command, the ``main`` function above is executed. It accepts some settings and returns a :term:`WSGI` application. (See :ref:`startup_chapter` for more about ``pserve``.) -The main function first creates a :term:`SQLAlchemy` database engine using -:func:`sqlalchemy.engine_from_config` from the ``sqlalchemy.`` prefixed -settings in the ``development.ini`` file's ``[app:main]`` section. -This will be a URI (something like ``sqlite://``): - - .. literalinclude:: src/basiclayout/tutorial/__init__.py - :lines: 13 - :language: py - -``main`` then initializes our SQLAlchemy session object, passing it the -engine: - - .. literalinclude:: src/basiclayout/tutorial/__init__.py - :lines: 14 - :language: py - -``main`` subsequently initializes our SQLAlchemy declarative ``Base`` object, -assigning the engine we created to the ``bind`` attribute of it's -``metadata`` object. This allows table definitions done imperatively -(instead of declaratively, via a class statement) to work. We won't use any -such tables in our application, but if you add one later, long after you've -forgotten about this tutorial, you won't be left scratching your head when it -doesn't work. - - .. literalinclude:: src/basiclayout/tutorial/__init__.py - :lines: 15 - :language: py - The next step of ``main`` is to construct a :term:`Configurator` object: .. literalinclude:: src/basiclayout/tutorial/__init__.py - :lines: 16 + :lines: 7 :language: py ``settings`` is passed to the Configurator as a keyword argument with the dictionary values passed as the ``**settings`` argument. This will be a dictionary of settings parsed from the ``.ini`` file, which contains deployment-related values such as ``pyramid.reload_templates``, -``db_string``, etc. +``sqlalchemy.url``, and so on. -Next, include :term:`Chameleon` templating bindings so that we can use -renderers with the ``.pt`` extension within our project. +Next include :term:`Jinja2` templating bindings so that we can use renderers +with the ``.jinja2`` extension within our project. .. literalinclude:: src/basiclayout/tutorial/__init__.py - :lines: 17 + :lines: 8 + :language: py + +Next include the module ``meta`` from the package ``models`` using a dotted +Python path. + + .. literalinclude:: src/basiclayout/tutorial/__init__.py + :lines: 9 :language: py ``main`` now calls :meth:`pyramid.config.Configurator.add_static_view` with two arguments: ``static`` (the name), and ``static`` (the path): .. literalinclude:: src/basiclayout/tutorial/__init__.py - :lines: 18 + :lines: 10 :language: py This registers a static resource view which will match any URL that starts @@ -112,11 +91,11 @@ via the :meth:`pyramid.config.Configurator.add_route` method that will be used when the URL is ``/``: .. literalinclude:: src/basiclayout/tutorial/__init__.py - :lines: 19 + :lines: 11 :language: py -Since this route has a ``pattern`` equaling ``/`` it is the route that will -be matched when the URL ``/`` is visited, e.g. ``http://localhost:6543/``. +Since this route has a ``pattern`` equaling ``/``, it is the route that will +be matched when the URL ``/`` is visited, e.g., ``http://localhost:6543/``. ``main`` next calls the ``scan`` method of the configurator (:meth:`pyramid.config.Configurator.scan`), which will recursively scan our @@ -126,10 +105,10 @@ view configuration will be registered, which will allow one of our application URLs to be mapped to some code. .. literalinclude:: src/basiclayout/tutorial/__init__.py - :lines: 20 + :lines: 12 :language: py -Finally, ``main`` is finished configuring things, so it uses the +Finally ``main`` is finished configuring things, so it uses the :meth:`pyramid.config.Configurator.make_wsgi_app` method to return a :term:`WSGI` application: @@ -187,6 +166,39 @@ to inform the user about possible actions to take to solve the problem. Content models with the ``models`` package ------------------------------------------ +.. START moved from Application configuration with ``__init__.py``. This + section is a WIP, and needs to be updated using the new models package. + +The main function first creates a :term:`SQLAlchemy` database engine using +:func:`sqlalchemy.engine_from_config` from the ``sqlalchemy.`` prefixed +settings in the ``development.ini`` file's ``[app:main]`` section. +This will be a URI (something like ``sqlite://``): + + .. literalinclude:: src/basiclayout/tutorial/__init__.py + :lines: 13 + :language: py + +``main`` then initializes our SQLAlchemy session object, passing it the +engine: + + .. literalinclude:: src/basiclayout/tutorial/__init__.py + :lines: 14 + :language: py + +``main`` subsequently initializes our SQLAlchemy declarative ``Base`` object, +assigning the engine we created to the ``bind`` attribute of it's +``metadata`` object. This allows table definitions done imperatively +(instead of declaratively, via a class statement) to work. We won't use any +such tables in our application, but if you add one later, long after you've +forgotten about this tutorial, you won't be left scratching your head when it +doesn't work. + + .. literalinclude:: src/basiclayout/tutorial/__init__.py + :lines: 15 + :language: py + +.. END moved from Application configuration with ``__init__.py`` + In a SQLAlchemy-based application, a *model* object is an object composed by querying the SQL database. The ``models`` package is where the ``alchemy`` scaffold put the classes that implement our models. |
