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<phpdoc:classref xml:id="class.yaf-controller-abstract" xmlns:phpdoc="http://php.net/ns/phpdoc" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude">

 <title>The Yaf_Controller_Abstract class</title>
 <titleabbrev>Yaf_Controller_Abstract</titleabbrev>

 <partintro>

<!-- {{{ Yaf_Controller_Abstract intro -->
  <section xml:id="yaf-controller-abstract.intro">
   &reftitle.intro;
   <para>
    <classname>Yaf_Controller_Abstract</classname> is the heart of Yaf's 
    system. MVC stands for Model-View-Controller and is a design pattern 
    targeted at separating application logic from display logic.
   </para>
   <para>
    Every custom controller shall inherit
    <classname>Yaf_Controller_Abstract</classname>.
   </para>
   <para>
    You will find that you can not define __construct function for your custom
    controller, thus, <classname>Yaf_Controller_Abstract</classname> provides
    a magic method: <methodname>Yaf_Controller_Abstract::init</methodname>.
   </para>
   <para>
    If you have defined a init() method in your custom controller, it will be
    called as long as the controller was instantiated.
   </para>
   <para>
    Action may have arguments, when a request coming, if there are the same
    name variable in the request parameters(see
    <methodname>Yaf_Request_Abstract::getParam</methodname>) after routed, 
    Yaf will pass them to the action method
    (see <methodname>Yaf_Action_Abstract::execute</methodname>).
    <note>
     <para>
      These arguments are directly fetched without filtering, it should be 
      carefully processed before use them.
     </para>
    </note>
   </para>
  </section>
<!-- }}} -->

  <section xml:id="yaf-controller-abstract.synopsis">
   &reftitle.classsynopsis;

<!-- {{{ Synopsis -->
   <classsynopsis>
    <ooclass><classname>Yaf_Controller_Abstract</classname></ooclass>

<!-- {{{ Class synopsis -->
    <classsynopsisinfo>
     <ooclass>
      <modifier>abstract</modifier>
      <classname>Yaf_Controller_Abstract</classname>
     </ooclass>
    </classsynopsisinfo>
<!-- }}} -->
    <classsynopsisinfo role="comment">&Properties;</classsynopsisinfo>
    <fieldsynopsis>
     <modifier>public</modifier>
     <varname linkend="yaf-controller-abstract.props.actions">actions</varname>
    </fieldsynopsis>
    <fieldsynopsis>
     <modifier>protected</modifier>
     <varname linkend="yaf-controller-abstract.props.module">_module</varname>
    </fieldsynopsis>
    <fieldsynopsis>
     <modifier>protected</modifier>
     <varname linkend="yaf-controller-abstract.props.name">_name</varname>
    </fieldsynopsis>
    <fieldsynopsis>
     <modifier>protected</modifier>
     <varname linkend="yaf-controller-abstract.props.request">_request</varname>
    </fieldsynopsis>
    <fieldsynopsis>
     <modifier>protected</modifier>
     <varname linkend="yaf-controller-abstract.props.response">_response</varname>
    </fieldsynopsis>
    <fieldsynopsis>
     <modifier>protected</modifier>
     <varname linkend="yaf-controller-abstract.props.invoke-args">_invoke_args</varname>
    </fieldsynopsis>
    <fieldsynopsis>
     <modifier>protected</modifier>
     <varname linkend="yaf-controller-abstract.props.view">_view</varname>
    </fieldsynopsis>

    
    <classsynopsisinfo role="comment">&Methods;</classsynopsisinfo>
    <xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.yaf-controller-abstract')/db:refentry/db:refsect1[@role='description']/descendant::db:methodsynopsis[1])" />
   </classsynopsis>
<!-- }}} -->

  </section>

  
<!-- {{{ Yaf_Controller_Abstract properties -->
  <section xml:id="yaf-controller-abstract.props">
   &reftitle.properties;
   <variablelist>
    <varlistentry xml:id="yaf-controller-abstract.props.actions">
     <term><varname>actions</varname></term>
     <listitem>
      <para>
      You can also define a action method in a separate PHP script by using
      this property and <classname>Yaf_Action_Abstract</classname>.
      <example>
       <title>define action in a separate file</title>
        <programlisting role="php">
<![CDATA[
<?php
class IndexController extends Yaf_Controller_Abstract {
    protected $actions = array(
        /** now dummyAction is defined in a separate file */
        "dummy" => "actions/Dummy_action.php",
    );

    /* action method may have arguments */
    public indexAction($name, $id) {
       /* $name and $id are unsafe raw data */
       assert($name == $this->getRequest()->getParam("name"));
       assert($id   == $this->_request->getParam("id"));
    }
}
?>
]]>
        </programlisting>
      </example>
      <example>
       <title>Dummy_action.php</title>
        <programlisting role="php">
<![CDATA[
<?php
class DummyAction extends Yaf_Action_Abstract {
    /* a action class shall define this method  as the entry point */
    public execute() {
    }
}
?>
]]>
        </programlisting>
      </example>
      </para>
     </listitem>
    </varlistentry>
    <varlistentry xml:id="yaf-controller-abstract.props.module">
     <term><varname>_module</varname></term>
     <listitem>
      <para>
        module name
      </para>
     </listitem>
    </varlistentry>
    <varlistentry xml:id="yaf-controller-abstract.props.name">
     <term><varname>_name</varname></term>
     <listitem>
      <para>
        controller name
      </para>
     </listitem>
    </varlistentry>
    <varlistentry xml:id="yaf-controller-abstract.props.request">
     <term><varname>_request</varname></term>
     <listitem>
      <para>
      current request object
      </para>
     </listitem>
    </varlistentry>
    <varlistentry xml:id="yaf-controller-abstract.props.response">
     <term><varname>_response</varname></term>
     <listitem>
      <para>
      current response object
      </para>
     </listitem>
    </varlistentry>
    <varlistentry xml:id="yaf-controller-abstract.props.invoke-args">
     <term><varname>_invoke_args</varname></term>
     <listitem>
      <para></para>
     </listitem>
    </varlistentry>
    <varlistentry xml:id="yaf-controller-abstract.props.view">
     <term><varname>_view</varname></term>
     <listitem>
      <para>
      view engine object
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </section>
<!-- }}} -->


 </partintro>

 &reference.yaf.entities.yaf-controller-abstract;

</phpdoc:classref>

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