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-.. _tutorial-templates:
-
-Step 6: The Templates
-=====================
-
-Now we should start working on the templates. If we request the URLs now
-we would only get an exception that Flask cannot find the templates. The
-templates are using `Jinja2`_ syntax and have autoescaping enabled by
-default. This means that unless you mark a value in the code with
-:class:`~flask.Markup` or with the ``|safe`` filter in the template,
-Jinja2 will ensure that special characters such as ``<`` or ``>`` are
-escaped with their XML equivalents.
-
-We are also using template inheritance which makes it possible to reuse
-the layout of the website in all pages.
-
-Put the following templates into the `templates` folder:
-
-.. _Jinja2: http://jinja.pocoo.org/2/documentation/templates
-
-layout.html
------------
-
-This template contains the HTML skeleton, the header and a link to log in
-(or log out if the user was already logged in). It also displays the
-flashed messages if there are any. The ``{% block body %}`` block can be
-replaced by a block of the same name (``body``) in a child template.
-
-The :class:`~flask.session` dict is available in the template as well and
-you can use that to check if the user is logged in or not. Note that in
-Jinja you can access missing attributes and items of objects / dicts which
-makes the following code work, even if there is no ``'logged_in'`` key in
-the session:
-
-.. sourcecode:: html+jinja
-
- <!doctype html>
- <title>Flaskr</title>
- <link rel=stylesheet type=text/css href="{{ url_for('static', filename='style.css') }}">
- <div class=page>
- <h1>Flaskr</h1>
- <div class=metanav>
- {% if not session.logged_in %}
- <a href="{{ url_for('login') }}">log in</a>
- {% else %}
- <a href="{{ url_for('logout') }}">log out</a>
- {% endif %}
- </div>
- {% for message in get_flashed_messages() %}
- <div class=flash>{{ message }}</div>
- {% endfor %}
- {% block body %}{% endblock %}
- </div>
-
-show_entries.html
------------------
-
-This template extends the `layout.html` template from above to display the
-messages. Note that the `for` loop iterates over the messages we passed
-in with the :func:`~flask.render_template` function. We also tell the
-form to submit to your `add_entry` function and use `POST` as `HTTP`
-method:
-
-.. sourcecode:: html+jinja
-
- {% extends "layout.html" %}
- {% block body %}
- {% if session.logged_in %}
- <form action="{{ url_for('add_entry') }}" method=post class=add-entry>
- <dl>
- <dt>Title:
- <dd><input type=text size=30 name=title>
- <dt>Text:
- <dd><textarea name=text rows=5 cols=40></textarea>
- <dd><input type=submit value=Share>
- </dl>
- </form>
- {% endif %}
- <ul class=entries>
- {% for entry in entries %}
- <li><h2>{{ entry.title }}</h2>{{ entry.text|safe }}
- {% else %}
- <li><em>Unbelievable. No entries here so far</em>
- {% endfor %}
- </ul>
- {% endblock %}
-
-login.html
-----------
-
-Finally the login template which basically just displays a form to allow
-the user to login:
-
-.. sourcecode:: html+jinja
-
- {% extends "layout.html" %}
- {% block body %}
- <h2>Login</h2>
- {% if error %}<p class=error><strong>Error:</strong> {{ error }}{% endif %}
- <form action="{{ url_for('login') }}" method=post>
- <dl>
- <dt>Username:
- <dd><input type=text name=username>
- <dt>Password:
- <dd><input type=password name=password>
- <dd><input type=submit value=Login>
- </dl>
- </form>
- {% endblock %}
-
-Continue with :ref:`tutorial-css`.