| 
									
										
										
										
											2004-10-07 18:50:52 +00:00
										 |  |  |  | <?xml version="1.0" encoding="iso-8859-1"?> | 
					
						
							|  |  |  |  | <!-- $Revision$ --> | 
					
						
							|  |  |  |  |    <sect1 id="plugins.resources"><title>Fuentes</title> | 
					
						
							|  |  |  |  |     <para> | 
					
						
							|  |  |  |  |      Las fuentes de los plugins son como una forma generica de suministrar | 
					
						
							| 
									
										
										
										
											2005-11-08 23:37:29 +00:00
										 |  |  |  |      c<>digo fuente de template o componentes de script PHP al Smarty. Algunos  | 
					
						
							|  |  |  |  |      ejemplos de fuentes: base de datos, LDAP, memoria compartida, sockets, etc. | 
					
						
							| 
									
										
										
										
											2004-10-07 18:50:52 +00:00
										 |  |  |  |     </para> | 
					
						
							|  |  |  |  | 
 | 
					
						
							|  |  |  |  |     <para> | 
					
						
							|  |  |  |  |      Existe un total de 4 funciones que necesitan estar registradas para  | 
					
						
							|  |  |  |  |      cada tipo de fuente. Cada funci<63>n recibir<69> el fuente requerido como  | 
					
						
							|  |  |  |  |      primer par<61>metro y el objeto de Smarty como ultimo par<61>metro. | 
					
						
							|  |  |  |  |      El resto de los par<61>metros dependen de la funci<63>n. | 
					
						
							|  |  |  |  |     </para> | 
					
						
							|  |  |  |  | 
 | 
					
						
							|  |  |  |  |     <funcsynopsis> | 
					
						
							|  |  |  |  |      <funcprototype> | 
					
						
							|  |  |  |  |       <funcdef>bool <function>smarty_resource_<replaceable>name</replaceable>_source</function></funcdef> | 
					
						
							|  |  |  |  |       <paramdef>string <parameter>$rsrc_name</parameter></paramdef> | 
					
						
							|  |  |  |  |       <paramdef>string <parameter>&$source</parameter></paramdef> | 
					
						
							|  |  |  |  |       <paramdef>object <parameter>&$smarty</parameter></paramdef> | 
					
						
							|  |  |  |  |      </funcprototype> | 
					
						
							|  |  |  |  |      <funcprototype> | 
					
						
							|  |  |  |  |       <funcdef>bool <function>smarty_resource_<replaceable>name</replaceable>_timestamp</function></funcdef> | 
					
						
							|  |  |  |  |       <paramdef>string <parameter>$rsrc_name</parameter></paramdef> | 
					
						
							|  |  |  |  |       <paramdef>int <parameter>&$timestamp</parameter></paramdef> | 
					
						
							|  |  |  |  |       <paramdef>object <parameter>&$smarty</parameter></paramdef> | 
					
						
							|  |  |  |  |      </funcprototype> | 
					
						
							|  |  |  |  |      <funcprototype> | 
					
						
							|  |  |  |  |       <funcdef>bool <function>smarty_resource_<replaceable>name</replaceable>_secure</function></funcdef> | 
					
						
							|  |  |  |  |       <paramdef>string <parameter>$rsrc_name</parameter></paramdef> | 
					
						
							|  |  |  |  |       <paramdef>object <parameter>&$smarty</parameter></paramdef> | 
					
						
							|  |  |  |  |      </funcprototype> | 
					
						
							|  |  |  |  |      <funcprototype> | 
					
						
							|  |  |  |  |       <funcdef>bool <function>smarty_resource_<replaceable>name</replaceable>_trusted</function></funcdef> | 
					
						
							|  |  |  |  |       <paramdef>string <parameter>$rsrc_name</parameter></paramdef> | 
					
						
							|  |  |  |  |       <paramdef>object <parameter>&$smarty</parameter></paramdef> | 
					
						
							|  |  |  |  |      </funcprototype> | 
					
						
							|  |  |  |  |     </funcsynopsis> | 
					
						
							|  |  |  |  | 
 | 
					
						
							|  |  |  |  |     <para> | 
					
						
							| 
									
										
										
										
											2005-11-08 23:37:29 +00:00
										 |  |  |  |      La primera funci<63>n debe devolver el recurso. Su segundo par<61>metro  | 
					
						
							|  |  |  |  |      es una variable pasada por referencia donde el resultado debe ser  | 
					
						
							|  |  |  |  |      almacenado. La funci<63>n debe retornar <literal>true</literal> si  | 
					
						
							|  |  |  |  |      esta pudo recuperar satisfactoriamente el recurso y en caso contrario | 
					
						
							|  |  |  |  |      retornara <literal>false</literal>. | 
					
						
							| 
									
										
										
										
											2004-10-07 18:50:52 +00:00
										 |  |  |  |     </para> | 
					
						
							|  |  |  |  | 
 | 
					
						
							|  |  |  |  |     <para> | 
					
						
							|  |  |  |  |      La segunda funci<63>n debe devolver la ultima modificaci<63>n del | 
					
						
							|  |  |  |  |      recurso requerido (como un timestamp Unix). El segundo par<61>metro  | 
					
						
							|  |  |  |  |      es una variable pasada por referencia donde el timestamp sera | 
					
						
							|  |  |  |  |      almacenado. La funci<63>n debe retornar  <literal>true</literal> | 
					
						
							|  |  |  |  |      si el timestamp pudo ser determinado satisfactoriamente, y en  | 
					
						
							|  |  |  |  |      caso contrario retornara <literal>false</literal>. | 
					
						
							|  |  |  |  |     </para> | 
					
						
							|  |  |  |  | 
 | 
					
						
							|  |  |  |  |     <para> | 
					
						
							|  |  |  |  |      La tercera funci<63>n debe retornar <literal>true</literal> o | 
					
						
							|  |  |  |  |      <literal>false</literal>, dependiendo si el recurso requerido | 
					
						
							|  |  |  |  |      es seguro o no. Esta funci<63>n es usada solo para recursos de  | 
					
						
							|  |  |  |  |      template pero esta debe ser definida. | 
					
						
							|  |  |  |  |     </para> | 
					
						
							|  |  |  |  | 
 | 
					
						
							|  |  |  |  |     <para> | 
					
						
							|  |  |  |  |      La cuarta funci<63>n debe retornar <literal>true</literal> o | 
					
						
							|  |  |  |  |      <literal>false</literal>, dependiendo si el recurso requerido  | 
					
						
							|  |  |  |  |      es seguro o no. Esta funci<63>n es usada solo para componetes de  | 
					
						
							|  |  |  |  |      script de PHP solicitado por las etiquetas  | 
					
						
							|  |  |  |  |      <command>include_php</command> o <command>insert</command> | 
					
						
							|  |  |  |  |      con el atributo <structfield>src</structfield>. Sin embargo,  | 
					
						
							|  |  |  |  |      este debe ser definido para los recurso del template. | 
					
						
							|  |  |  |  |     </para> | 
					
						
							|  |  |  |  |     <para> | 
					
						
							|  |  |  |  |      Vea tambi<62>n | 
					
						
							|  |  |  |  |      <link linkend="api.register.resource">register_resource()</link>, | 
					
						
							|  |  |  |  |      <link linkend="api.unregister.resource">unregister_resource()</link>. | 
					
						
							|  |  |  |  |     </para> | 
					
						
							|  |  |  |  |     <example> | 
					
						
							|  |  |  |  |      <title>Plugin resource (recurso)</title> | 
					
						
							|  |  |  |  |      <programlisting role="php"> | 
					
						
							|  |  |  |  | <![CDATA[ | 
					
						
							|  |  |  |  | <?php | 
					
						
							|  |  |  |  | /* | 
					
						
							|  |  |  |  |  * Smarty plugin | 
					
						
							|  |  |  |  |  * -------------------------------------------------------------  | 
					
						
							|  |  |  |  |  * File:     resource.db.php | 
					
						
							|  |  |  |  |  * Type:     resource | 
					
						
							|  |  |  |  |  * Name:     db | 
					
						
							|  |  |  |  |  * Purpose:  Fetches templates from a database | 
					
						
							|  |  |  |  |  * ------------------------------------------------------------- | 
					
						
							|  |  |  |  |  */ | 
					
						
							|  |  |  |  | function smarty_resource_db_source($tpl_name, &$tpl_source, &$smarty) | 
					
						
							|  |  |  |  | { | 
					
						
							|  |  |  |  |     // do database call here to fetch your template, | 
					
						
							|  |  |  |  |     // populating $tpl_source | 
					
						
							|  |  |  |  |     $sql = new SQL; | 
					
						
							|  |  |  |  |     $sql->query("select tpl_source | 
					
						
							|  |  |  |  |                    from my_table | 
					
						
							|  |  |  |  |                   where tpl_name='$tpl_name'"); | 
					
						
							|  |  |  |  |     if ($sql->num_rows) { | 
					
						
							|  |  |  |  |         $tpl_source = $sql->record['tpl_source']; | 
					
						
							|  |  |  |  |         return true; | 
					
						
							|  |  |  |  |     } else { | 
					
						
							|  |  |  |  |         return false; | 
					
						
							|  |  |  |  |     } | 
					
						
							|  |  |  |  | } | 
					
						
							|  |  |  |  | 
 | 
					
						
							|  |  |  |  | function smarty_resource_db_timestamp($tpl_name, &$tpl_timestamp, &$smarty) | 
					
						
							|  |  |  |  | { | 
					
						
							|  |  |  |  |     // do database call here to populate $tpl_timestamp. | 
					
						
							|  |  |  |  |     $sql = new SQL; | 
					
						
							|  |  |  |  |     $sql->query("select tpl_timestamp | 
					
						
							|  |  |  |  |                    from my_table | 
					
						
							|  |  |  |  |                   where tpl_name='$tpl_name'"); | 
					
						
							|  |  |  |  |     if ($sql->num_rows) { | 
					
						
							|  |  |  |  |         $tpl_timestamp = $sql->record['tpl_timestamp']; | 
					
						
							|  |  |  |  |         return true; | 
					
						
							|  |  |  |  |     } else { | 
					
						
							|  |  |  |  |         return false; | 
					
						
							|  |  |  |  |     } | 
					
						
							|  |  |  |  | } | 
					
						
							|  |  |  |  | 
 | 
					
						
							|  |  |  |  | function smarty_resource_db_secure($tpl_name, &$smarty) | 
					
						
							|  |  |  |  | { | 
					
						
							|  |  |  |  |     // assume all templates are secure | 
					
						
							|  |  |  |  |     return true; | 
					
						
							|  |  |  |  | } | 
					
						
							|  |  |  |  | 
 | 
					
						
							|  |  |  |  | function smarty_resource_db_trusted($tpl_name, &$smarty) | 
					
						
							|  |  |  |  | { | 
					
						
							|  |  |  |  |     // not used for templates | 
					
						
							|  |  |  |  | } | 
					
						
							|  |  |  |  | ?> | 
					
						
							|  |  |  |  | ]]> | 
					
						
							|  |  |  |  |      </programlisting> | 
					
						
							|  |  |  |  |     </example> | 
					
						
							|  |  |  |  |    </sect1> | 
					
						
							|  |  |  |  | 
 | 
					
						
							|  |  |  |  | <!-- Keep this comment at the end of the file
 | 
					
						
							|  |  |  |  | Local variables: | 
					
						
							|  |  |  |  | mode: sgml | 
					
						
							|  |  |  |  | sgml-omittag:t | 
					
						
							|  |  |  |  | sgml-shorttag:t | 
					
						
							|  |  |  |  | sgml-minimize-attributes:nil | 
					
						
							|  |  |  |  | sgml-always-quote-attributes:t | 
					
						
							|  |  |  |  | sgml-indent-step:1 | 
					
						
							|  |  |  |  | sgml-indent-data:t | 
					
						
							|  |  |  |  | indent-tabs-mode:nil | 
					
						
							|  |  |  |  | sgml-parent-document:nil | 
					
						
							|  |  |  |  | sgml-default-dtd-file:"../../../../manual.ced" | 
					
						
							|  |  |  |  | sgml-exposed-tags:nil | 
					
						
							|  |  |  |  | sgml-local-catalogs:nil | 
					
						
							|  |  |  |  | sgml-local-ecat-files:nil | 
					
						
							|  |  |  |  | End: | 
					
						
							|  |  |  |  | vim600: syn=xml fen fdm=syntax fdl=2 si | 
					
						
							|  |  |  |  | vim: et tw=78 syn=sgml | 
					
						
							|  |  |  |  | vi: ts=1 sw=1 | 
					
						
							|  |  |  |  | --> |