Join Jon Peck for an in-depth discussion in this video Extending templates and decoration, part of Up and Running with Symfony2 for PHP (2014).
Twig takes a unique approach to templating.…In addition to sharing elements like a header…or footer, elements can be decorated…with a system of extending and overriding.…Frankly, it's really similar to object-oriented…inheritance, where children can selectively…pick and choose what to customize.…Parent templates are made up of html and blocks,…which define common elements.…A block is defined with a tag containing…the word block, then a unique name.…A block can have optional default content…
- Installing Symfony
- Creating a bundle from the console
- Customizing and generating database tables
- Generating controllers
- Creating, editing, and debugging entities
- Displaying and debugging a form
- Rendering content with templates
Skill Level Intermediate
Q: When trying to access the application, I receive an error stating "This script is only accessible from localhost." How can I get around this restriction?
A: The development front controller and configuration scripts are protected by default to only allow access from the localhost. Refer to the video titled “Exploring the Symfony layout” to see how to disable this security.
Q: I specified the wrong database credentials and got an "Access denied for user" error from doctrine. How can I fix the database configuration?
<div>A: The most likely cause is a typo or misconfiguration in the Symfony parameters file, which you can find at ./symfony/app/config/parameters.yml. This file is typically generated during installation using an interactive wizard.</div><div> </div><div>Symfony requires read and write access to a MySQL database, and needs to know how to connect to the database. Therefore, you'll need to specify a username, password, port (if nonstandard), host, and database name. The credentials to your individual development environment are likely different than the ones used in the course; please use your best judgment in determining the correct values. After making a change, verify the configuration by using a web browser to navigate to /symfony/web/config.php, then click “Configure your Symfony Application online” at the bottom of the page.</div>
Q: How can I configure PHP's time zone?
<div>A: You'll need to edit PHP's configuration to specify a time zone. The <em></em><a href="http://www.lynda.com/Apache-tutorials/Up-Running-Linux-PHP-Developers/158372-2.html"><em>Up and Running with Linux for PHP</em> <em>Developers</em></a> PHP configuration can be modified by editing the custom configuration:</div><div> </div><div>sudoedit /etc/php5/mods-available/custom.ini</div><div> </div><div> If you have a different development environment, determine the location of your php.ini configuration file. Specify a date.timezone, such as: </div><div> </div><div>date.timezone = America/Los_Angeles</div><div> </div><div>Then restart the server using: </div><div> </div><div>sudo service apache2 restart</div><div> </div><div>A full list of supported timezones can be found at <a target="_blank" href="http://php.net/manual/en/timezones.php">http://php.net/manual/en/timezones.php</a>.</div><div> </div>