If you liked what you've learned so far, dive in!
Subscribe to get access to this tutorial plus
video, code and script downloads.
Let's look at a couple of things that are hiding in those new template files
I created. Open up index.html.twig
and notice the for
tag, which
loops over the entities
variable we're passing to the template:
{# src/Yoda/EventBundle/Resources/views/Event/index.html.twig #}
{# ... #}
{% for entity in entities %}
<article>...</article>
{% endfor %}
You're going to loop over a lot of things in your Twig days, so take a close look at the syntax.
Further down, check out how we link to the "show" page for each event. Instead of hardcoding the URL, Symfony generates the URL based on the route:
{# src/Yoda/EventBundle/Resources/views/Event/index.html.twig #}
{# ... #}
<a href="{{ path('event_show', {'id': entity.id}) }}">
{{ entity.name }}
</a>
Look at the event routes that were generated earlier and find one called
event_show
:
# src/Yoda/EventBundle/Resources/config/routing/event.yml
# ...
event_show:
pattern: /{id}/show
defaults: { _controller: "EventBundle:Event:show" }
To generate a URL in Twig, we use the Twig path
function.
Its first argument is the name of the route we're linking to, like event_show
.
The second is an array of wildcards in the route. We pass in the actual value
we want for the id
wildcard.
<a href="{{ path('event_show', {'id': entity.id}) }}">
{{ entity.name }}
</a>
In the browser, you can see how each link generates almost the same URL, but with a different id portion.
One more hidden trick. The Event class's time
field is represented
internally by a PHP DateTime object. We saw this in our play.php
file
when we created an event. To actually render that as a string, we use Twig's
date filter:
<dd>
{{ entity.time|date('g:ia / l M j, Y') }}
</dd>
It transforms dates into another format and the string we pass to it is from PHP's good ol' fashioned date function formats.
"Houston: no signs of life"
Start the conversation!
// composer.json
{
"require": {
"php": ">=5.3.3",
"symfony/symfony": "~2.4", // v2.4.2
"doctrine/orm": "~2.2,>=2.2.3", // v2.4.2
"doctrine/doctrine-bundle": "~1.2", // v1.2.0
"twig/extensions": "~1.0", // v1.0.1
"symfony/assetic-bundle": "~2.3", // v2.3.0
"symfony/swiftmailer-bundle": "~2.3", // v2.3.5
"symfony/monolog-bundle": "~2.4", // v2.5.0
"sensio/distribution-bundle": "~2.3", // v2.3.4
"sensio/framework-extra-bundle": "~3.0", // v3.0.0
"sensio/generator-bundle": "~2.3", // v2.3.4
"incenteev/composer-parameter-handler": "~2.0", // v2.1.0
"doctrine/doctrine-fixtures-bundle": "~2.2.0" // v2.2.0
}
}