X-Git-Url: https://vcs.fsf.org/?a=blobdiff_plain;f=CRM%2FCore%2FSmarty.php;h=7c941d8cba681478b38db85af7cbf4150a5c57e9;hb=2aa397bc9ba4608d4146278d55dedd4080c53aec;hp=0da5594db86f1089de2dc7934c8430719417036b;hpb=d5f6077993b1df66a934933af0bc9327cff13e78;p=civicrm-core.git

diff --git a/CRM/Core/Smarty.php b/CRM/Core/Smarty.php
index 0da5594db8..7c941d8cba 100644
--- a/CRM/Core/Smarty.php
+++ b/CRM/Core/Smarty.php
@@ -1,7 +1,7 @@
 <?php
 /*
  +--------------------------------------------------------------------+
- | CiviCRM version 4.5                                                |
+ | CiviCRM version 4.6                                                |
  +--------------------------------------------------------------------+
  | Copyright CiviCRM LLC (c) 2004-2014                                |
  +--------------------------------------------------------------------+
@@ -45,10 +45,10 @@ if (!class_exists('Smarty')) {
  *
  */
 class CRM_Core_Smarty extends Smarty {
-  CONST
+  const
     // use print.tpl and bypass the CMS. Civi prints a valid html file
     PRINT_PAGE = 1,
-    // this and all the below bypasses the CMS html surronding it and assumes we will embed this within other pages
+    // this and all the below bypasses the CMS html surrounding it and assumes we will embed this within other pages
     PRINT_SNIPPET = 2,
     // sends the generated html to the chosen pdf engine
     PRINT_PDF = 3,
@@ -74,16 +74,20 @@ class CRM_Core_Smarty extends Smarty {
   static private $_singleton = NULL;
 
   /**
-   * class constructor
+   * @var array (string $name => mixed $value) a list of variables ot save temporarily
+   */
+  private $backupFrames = array();
+
+  /**
+   * Class constructor
    *
    * @return CRM_Core_Smarty
-   * @access private
    */
   private function __construct() {
     parent::__construct();
   }
 
-  private function initialize( ) {
+  private function initialize() {
     $config = CRM_Core_Config::singleton();
 
     if (isset($config->customTemplateDir) && $config->customTemplateDir) {
@@ -172,7 +176,7 @@ class CRM_Core_Smarty extends Smarty {
    * Method providing static instance of SmartTemplate, as
    * in Singleton pattern.
    */
-  static function &singleton() {
+  public static function &singleton() {
     if (!isset(self::$_singleton)) {
       self::$_singleton = new CRM_Core_Smarty( );
       self::$_singleton->initialize( );
@@ -183,16 +187,16 @@ class CRM_Core_Smarty extends Smarty {
   }
 
   /**
-   * executes & returns or displays the template results
+   * Executes & returns or displays the template results
    *
    * @param string $resource_name
    * @param string $cache_id
    * @param string $compile_id
-   * @param boolean $display
+   * @param bool $display
    *
    * @return bool|mixed|string
    */
-  function fetch($resource_name, $cache_id = NULL, $compile_id = NULL, $display = FALSE) {
+  public function fetch($resource_name, $cache_id = NULL, $compile_id = NULL, $display = FALSE) {
     if (preg_match( '/^(\s+)?string:/', $resource_name)) {
       $old_security = $this->security;
       $this->security = TRUE;
@@ -204,7 +208,33 @@ class CRM_Core_Smarty extends Smarty {
     return $output;
   }
 
-  function appendValue($name, $value) {
+  /**
+   * Fetch a template (while using certain variables)
+   *
+   * @param string $resource_name
+   * @param array $vars
+   *   (string $name => mixed $value) variables to export to Smarty.
+   * @throws Exception
+   * @return bool|mixed|string
+   */
+  public function fetchWith($resource_name, $vars) {
+    $this->pushScope($vars);
+    try {
+      $result = $this->fetch($resource_name);
+    } catch (Exception $e) {
+      // simulate try { ... } finally { ... }
+      $this->popScope();
+      throw $e;
+    }
+    $this->popScope();
+    return $result;
+  }
+
+  /**
+   * @param string $name
+   * @param $value
+   */
+  public function appendValue($name, $value) {
     $currentValue = $this->get_template_vars($name);
     if (!$currentValue) {
       $this->assign($name, $value);
@@ -216,7 +246,7 @@ class CRM_Core_Smarty extends Smarty {
     }
   }
 
-  function clearTemplateVars() {
+  public function clearTemplateVars() {
     foreach (array_keys($this->_tpl_vars) as $key) {
       if ($key == 'config' || $key == 'session') {
         continue;
@@ -225,12 +255,15 @@ class CRM_Core_Smarty extends Smarty {
     }
   }
 
-  static function registerStringResource() {
+  public static function registerStringResource() {
     require_once 'CRM/Core/Smarty/resources/String.php';
     civicrm_smarty_register_string_resource();
   }
 
-  function addTemplateDir($path) {
+  /**
+   * @param $path
+   */
+  public function addTemplateDir($path) {
     if ( is_array( $this->template_dir ) ) {
       array_unshift( $this->template_dir, $path );
     } else {
@@ -238,5 +271,57 @@ class CRM_Core_Smarty extends Smarty {
     }
 
   }
-}
 
+  /**
+   * Temporarily assign a list of variables.
+   *
+   * @code
+   * $smarty->pushScope(array(
+   *   'first_name' => 'Alice',
+   *   'last_name' => 'roberts',
+   * ));
+   * $html = $smarty->fetch('view-contact.tpl');
+   * $smarty->popScope();
+   * @endcode
+   *
+   * @param array $vars
+   *   (string $name => mixed $value).
+   * @return CRM_Core_Smarty
+   * @see popScope
+   */
+  public function pushScope($vars) {
+    $oldVars = $this->get_template_vars();
+    $backupFrame = array();
+    foreach ($vars as $key => $value) {
+      $backupFrame[$key] = isset($oldVars[$key]) ? $oldVars[$key] : NULL;
+    }
+    $this->backupFrames[] = $backupFrame;
+
+    $this->assignAll($vars);
+
+    return $this;
+  }
+
+  /**
+   * Remove any values that were previously pushed.
+   *
+   * @return CRM_Core_Smarty
+   * @see pushScope
+   */
+  public function popScope() {
+    $this->assignAll(array_pop($this->backupFrames));
+    return $this;
+  }
+
+  /**
+   * @param array $vars
+   *   (string $name => mixed $value).
+   * @return CRM_Core_Smarty
+   */
+  public function assignAll($vars) {
+    foreach ($vars as $key => $value) {
+      $this->assign($key, $value);
+    }
+    return $this;
+  }
+}