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Combining the power of view components and view configuration brings a new perspective to view development: the component slot system. It is an alternative to slots focusing on reusability and layer separation. So component slots are more structured than slots, but a little slower to execute.

Just like slots, component slots are named placeholders that you can declare in the view elements. The difference resides in the way the filling code is determined. For a slot, the code is set in another view element; for a component slot, the code results from the execution of a component, and the name of this component comes from the view configuration. You will understand component slots more clearly after seeing them in action.

To set a component slot placeholder, use the include_component_slot() helper. This function expects a label as a parameter. For instance, suppose that the layout.php file of the application contains a contextual sidebar. Listing 7-38 shows how the component slot helper would be included.

Listing 7-38 - Including a Component Slot with the Name 'sidebar'

Define the correspondence between the component slot label and a component name in the view configuration. For instance, set the default component for the sidebar component slot in the application view.yml, under the components header. The key is the component slot label; the value must be an array containing a module and a component name. Listing 7-39 shows an example.

Listing 7-39 - Defining the Default 'sidebar' Slot Component, in myapp/config/view.yml

So when the layout is executed, the sidebar component slot is filled with the result of the executeDefault() method of the barComponents class located in the bar module, and this method will display the _default.php partial located in modules/bar/templates/.

The configuration cascade gives you the ability to override this setting for a given module. For instance, in a user module, you may want the contextual component to display the user name and the number of articles that the user published. In that case, specialize the sidebar slot setting in the module view.yml, as shown in Listing 7-40.

Listing 7-40 - Specializing the 'sidebar' Slot Component, in myapp/modules/user/config/view.yml

The component definitions to handle this slot should look like the ones in Listing 7-41.

私はフレームワークの初心者ですが、 symfony 1.4 に formfieldset.php のアクションを作成する方法は非常に混乱しています。 symfonyフレームワークで初めてのコーディング経験です。ファイル名として indexSuccess.php とその他のファイル Success.php を使ってアクションを作成できます。しかし. Backports Symfony2 http cache concepts to Symfony 1.4. isics/isicsHttpCachePlugin. スロットは HTML コードを格納することが想定されているので、symfony はそれらを定義する便利な方法を提供します: リスト7-16のように、slot と endslot ヘルパーのあいだでスロットのコードを書くだけです。. $ cd lib/vendor $ tar zxpf symfony-1.4.0.tgz $ mv symfony-1.4.0 symfony $ rm symfony-1.4.0.tgz Under Windows, unzipping the zip file can be achieved using Windows Explorer. After you rename the directory to symfony, there should be a directory structure similar to c: dev sfprojects jobeet lib vendor symfony. Installing from Subversion (recommended).

Symfony 1 Include_component Slot

Listing 7-41 - Components Used by the 'sidebar' Slot, in modules/bar/actions/components.class.php

Listing 7-42 shows the views for these two components.

Symfony 1.4 Include_component Slotted

Listing 7-42 - Partials Used by the 'sidebar' Slot Components, in modules/bar/templates/

Component slots can be used for breadcrumbs, contextual navigations, and dynamic insertions of all kinds. As components, they can be used in the global layout and regular templates, or even in other components. The configuration setting the component of a slot is always taken from the configuration of the last action called.

If you need to suspend the use of a component slot for a given module, just declare an empty module/component for it, as shown in Listing 7-43.

Listing 7-43 - Disabling a Component Slot in view.yml

So as we’ve promised here goes more slides for online viewing:

1. Symfony 2 by Fabien Potencier

It’s long one but contains great information “where will be moving symfony in next 1-2 years”.
Frankly, I’m a bit confused b/c I feel that symfony 2 wont be compatible with 1.x branch. I did not hear that but I dont think after all these major changes compatibility is still possible.

2. Sympal – The flexible Symfony CMS by Jonathan H. Wage

Include_component Slot Symfony 1.4

We’ve already heard about sympal (i read about it in twitter from goyello’s guy) and had a quick look into that but I never thought I’d be interested to use one more self-written CMS. I must say I was wrong. After I’ve seen these slides I understood a few things. First of all Sympal contains whole bunch of new plugins sfSympalXXX which can be used separately in own projects. Also it’s really more like Drupal than like WordPress or Joomla 🙂
Sympal is good source for anyone who is planning to use YUI in his symfony projects. Also it’s simply good source for anyone who want to improve his symfony skills (I wont recommend it for beginners).

What I dont like is “slots” (it’s not sympal problem/idea though). Not sure maybe I just did not see good slots realization but I really preffer Joomla’s way of publishing/ordering modules.

3. What’s New In Doctrine by Jonathan H. Wage

What is really clear from these slides – everything is much simpler and better in Doctrine 2.
So I understood – it’s time to start using doctrine instead of propel 🙁
Sorry Propel I loved you sooo much. You were great and I’ll be missing you but you were really slow sometimes and needed to much server memory 🙂

Symfony 1.4 Include_component Slot Machines

Did we miss any interesting slides from conference? Yes we did.. there were lot of them in French and unfortunately we dont speak French (we wish we can). Hopefully someone provides us English versions so we can review them as well. Would be really great.

Have a great weekend symfonians!