Merge branch '2.7' into 2.8

* 2.7:
  Added a short section about registering commands
  Explain which branch to select for Pull Requests
  Missing the obvious <?php
  Update email field length in annotation
  Removed a duplicated content
  Clarify Symfony Console option conventions

Author: javiereguiluz

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,9 @@
+<!--
+
+If your pull request fixes a BUG, use the oldest maintained branch that contains
+the bug (see https://symfony.com/roadmap for the list of maintained branches).
+
+If your pull request documents a NEW FEATURE, use the same Symfony branch where
+the feature was introduced (and `master` for features of unreleased versions).
+
+-->

console.rst

@@ -61,10 +61,18 @@ method. Then you can optionally define a help message and the
         ;
     }
 
+Registering the Command
+-----------------------
+
+Symfony commands must be registered as services and :doc:`tagged </service_container/tags>`
+with the ``console.command`` tag. If the PHP class of your command extends from
+:class:`Symfony\\Component\\Console\\Command\\Command`, Symfony does this for
+you automatically.
+
 Executing the Command
 ---------------------
 
-After configuring the command, you can execute it in the terminal:
+After configuring and registering the command, you can execute it in the terminal:
 
 .. code-block:: terminal
 

console/input.rst

@@ -174,6 +174,11 @@ flag:
                 1
             );
 
+Note that to comply with the `docopt standard`_, long options can specify their
+values after a white space or an ``=`` sign (e.g. ``--iterations 5`` or
+``--iterations=5``), but short options can only use white spaces or no
+separation at all (e.g. ``-i 5`` or ``-i5``).
+
 There are four option variants you can use:
 
 ``InputOption::VALUE_IS_ARRAY``
@@ -184,8 +189,8 @@ There are four option variants you can use:
     behavior of options;
 
 ``InputOption::VALUE_REQUIRED``
-    This value is required (e.g. ``--iterations=5``), the option itself is
-    still optional;
+    This value is required (e.g. ``--iterations=5`` or ``-i5``), the option
+    itself is still optional;
 
 ``InputOption::VALUE_OPTIONAL``
     This option may or may not have a value (e.g. ``--yell`` or
@@ -215,3 +220,14 @@ You can combine ``VALUE_IS_ARRAY`` with ``VALUE_REQUIRED`` or
     Similarly, due to a PHP limitation, there is no way to pass an empty string
     as the value of an option. In ``command --prefix`` and ``command --prefix=''``
     cases, the value of the ``prefix`` option will be ``null``.
+
+.. caution::
+
+    While it is possible to separate an option from its value with a white space,
+    using this form leads to an ambiguity should the option appear before the
+    command name. For example, ``php bin/console --iterations 5 app:greet Fabien``
+    is ambiguous; Symfony would interpret ``5`` as the command name. To avoid
+    this situation, always place options after the command name, or avoid using
+    a space to separate the option name from its value.
+
+.. _`docopt standard`: http://docopt.org/

page_creation.rst

@@ -39,6 +39,7 @@ random) number and prints it. To do that, create a "Controller class" and a
 "controller" method inside of it that will be executed when someone goes to
 ``/lucky/number``::
 
+    <?php
     // src/AppBundle/Controller/LuckyController.php
     namespace AppBundle\Controller;
 

security/entity_provider.rst

@@ -70,7 +70,7 @@ For this entry, suppose that you already have a ``User`` entity inside an
         private $password;
 
         /**
-         * @ORM\Column(type="string", length=60, unique=true)
+         * @ORM\Column(type="string", length=254, unique=true)
          */
         private $email;