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* 2.8: Rewrite utf8mb4 cautions, add comment into sample configuration Add backticks for code-styling Indenting caution block to nest it inside the sidebar Revert "Fix example name to avoid breaking collision with standard data-collectors" Revert "Add a cautionary note telling users where the "standard" data-collector names can be found." Add a cautionary note telling users where the "standard" data-collector names can be found. Fix example name to avoid breaking collision with standard data-collectors Change MySQL UTF-8 examples to use utf8mb4, which is closer to the standard most people would expect [Cookbook] Custom compile steps on Heroku Added information about the Symfony Demo application Renamed precision option to scale
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‎best_practices/introduction.rst‎

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The Application
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---------------
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In addition to this guide, you'll find a sample application developed with
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all these best practices in mind. **The application is a simple blog engine**,
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because that will allow us to focus on the Symfony concepts and features without
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getting buried in difficult details.
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In addition to this guide, a sample application has been developed with all these
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best practices in mind. This project, called the Symfony Demo application, can
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be obtained through the Symfony Installer. First, `download and install`_ the
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installer and then execute this command to download the demo application:
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Instead of developing the application step by step in this guide, you'll find
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selected snippets of code through the chapters. Please refer to the last chapter
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of this guide to find more details about this application and the instructions
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to install it.
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.. code-block:: bash
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# Linux and Mac OS X
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$ symfony demo
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# Windows
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c:\> php symfony demo
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**The demo application is a simple blog engine**, because that will allow us to
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focus on the Symfony concepts and features without getting buried in difficult
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implementation details. Instead of developing the application step by step in
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this guide, you'll find selected snippets of code through the chapters.
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Don't Update Your Existing Applications
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---------------------------------------
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your tests or adding features that provide real value to the end users.
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.. _`Fabien Potencier`: https://connect.sensiolabs.com/profile/fabpot
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.. _`download and install`: http://symfony.com/download

‎book/doctrine.rst‎

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.. code-block:: ini
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[mysqld]
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collation-server = utf8_general_ci
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character-set-server = utf8
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# Version 5.5.3 introduced "utf8mb4", which is recommended
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collation-server = utf8mb4_general_ci # Replaces utf8_general_ci
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character-set-server = utf8mb4 # Replaces utf8
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We recommend against MySQL's ``utf8`` character set, since it does not
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support 4-byte unicode characters, and strings containing them will be
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truncated. This is fixed by the `newer utf8mb4 character set`_.
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.. note::
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.. _`migrations`: http://symfony.com/doc/current/bundles/DoctrineMigrationsBundle/index.html
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.. _`DoctrineFixturesBundle`: http://symfony.com/doc/current/bundles/DoctrineFixturesBundle/index.html
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.. _`FrameworkExtraBundle documentation`: http://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/converters.html
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.. _`newer utf8mb4 character set`: https://dev.mysql.com/doc/refman/5.5/en/charset-unicode-utf8mb4.html

‎cookbook/deployment/heroku.rst‎

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AcmeDemoBundle is only loaded in the dev environment (check out your
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``AppKernel`` class). Try opening ``/app/example`` from the AppBundle.
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Custom Compile Steps
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~~~~~~~~~~~~~~~~~~~~
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If you wish to execute additional custom commands during a build, you can leverage
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Heroku's `custom compile steps`_. Imagine you want to remove the ``dev`` front controller
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from your production environment on Heroku in order to avoid a potential vulnerability.
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Adding a command to remove ``web/app_dev.php`` to Composer's `post-install-commands`_ would
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work, but it also removes the controller in your local development environment on each
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``composer install`` or ``composer update`` respectively. Instead, you can add a
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`custom Composer command`_ named ``compile`` (this key name is a Heroku convention) to the
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``scripts`` section of your ``composer.json``. The listed commands hook into Heroku's deploy
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process:
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.. code-block:: json
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{
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"scripts": {
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"compile": [
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"rm web/app_dev.php"
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]
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}
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}
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This is also very useful to build assets on the production system, e.g. with Assetic:
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.. code-block:: json
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{
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"scripts": {
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"compile": [
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"app/console assetic:dump"
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]
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}
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}
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.. sidebar:: Node.js Dependencies
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Building assets may depend on node packages, e.g. ``uglifyjs`` or ``uglifycss``
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for asset minification. Installing node packages during the deploy requires a node
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installation. But currently, Heroku compiles your app using the PHP buildpack, which
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is auto-detected by the presence of a ``composer.json`` file, and does not include a
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node installation. Because the Node.js buildpack has a higher precedence than the PHP
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buildpack (see `Heroku buildpacks`_), adding a ``package.json`` listing your node
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dependencies makes Heroku opt for the Node.js buildpack instead:
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.. code-block:: json
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{
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"name": "myApp",
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"engines": {
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"node": "0.12.x"
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},
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"dependencies": {
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"uglifycss": "*",
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"uglify-js": "*"
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}
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}
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With the next deploy, Heroku compiles your app using the Node.js buildpack and
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your npm packages become installed. On the other hand, your ``composer.json`` is
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now ignored. To compile your app with both buildpacks, Node.js *and* PHP, you can
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use a special `multiple buildpack`_. To override buildpack auto-detection, you
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need to explicitly set the buildpack URL:
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.. code-block:: bash
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$ heroku buildpack:set https://github.com/ddollar/heroku-buildpack-multi.git
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Next, add a ``.buildpacks`` file to your project, listing the buildpacks you need:
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.. code-block:: text
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https://github.com/heroku/heroku-buildpack-nodejs.git
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https://github.com/heroku/heroku-buildpack-php.git
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With the next deploy, you can benefit from both buildpacks. This setup also enables
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your Heroku environment to make use of node based automatic build tools like
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`Grunt`_ or `gulp`_.
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.. _`the original article`: https://devcenter.heroku.com/articles/getting-started-with-symfony2
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.. _`signup with Heroku`: https://signup.heroku.com/signup/dc
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.. _`Heroku Toolbelt`: https://devcenter.heroku.com/articles/getting-started-with-php#local-workstation-setup
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.. _`verified that the RSA key fingerprint is correct`: https://devcenter.heroku.com/articles/git-repository-ssh-fingerprints
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.. _`post-install-commands`: https://getcomposer.org/doc/articles/scripts.md
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.. _`config vars`: https://devcenter.heroku.com/articles/config-vars
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.. _`custom compile steps`: https://devcenter.heroku.com/articles/php-support#custom-compile-step
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.. _`custom Composer command`: https://getcomposer.org/doc/articles/scripts.md#writing-custom-commands
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.. _`Heroku buildpacks`: https://devcenter.heroku.com/articles/buildpacks
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.. _`multiple buildpack`: https://github.com/ddollar/heroku-buildpack-multi.git
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.. _`Grunt`: http://gruntjs.com
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.. _`gulp`: http://gulpjs.com

‎reference/forms/types/integer.rst‎

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| Rendered as | ``input`` ``number`` field |
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| Options | - `grouping`_ |
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| | - `scale`_ |
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.. include:: /reference/forms/types/options/grouping.rst.inc
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.. include:: /reference/forms/types/options/precision.rst.inc
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rounding_mode
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~~~~~~~~~~~~~

‎reference/forms/types/money.rst‎

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| Options | - `currency`_ |
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.. include:: /reference/forms/types/options/grouping.rst.inc
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precision
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scale
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~~~~~
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.. versionadded:: 2.7
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The ``scale`` option was introduced in Symfony 2.7. Prior to Symfony 2.7,
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it was known as ``precision``.
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**type**: ``integer`` **default**: ``2``
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For some reason, if you need some precision other than 2 decimal places,
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you can modify this value. You probably won't need to do this unless,
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for example, you want to round to the nearest dollar (set the scale
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Inherited Options

‎reference/forms/types/number.rst‎

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=================
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type offers different options for the scale, rounding and grouping that you
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If a submitted number needs to be rounded (based on the `scale`_
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‎reference/forms/types/options/precision.rst.inc‎

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‎reference/forms/types/options/scale.rst.inc‎

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scale
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~~~~~
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.. versionadded:: 2.7
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it was known as ``precision``.
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**type**: ``integer`` **default**: Locale-specific (usually around ``3``)
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This specifies how many decimals will be allowed until the field rounds
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the submitted value (via ``rounding_mode``). For example, if ``scale`` is set
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to ``2``, a submitted value of ``20.123`` will be rounded to, for example,
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``20.12`` (depending on your `rounding_mode`_).

‎reference/forms/types/percent.rst‎

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~~~~~
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.. versionadded:: 2.7
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type
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~~~~

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