From bb07324f762708142f2158da1a8060f9f812c28b Mon Sep 17 00:00:00 2001
From: rvelices <rv-github@modusoptimus.com>
Date: Wed, 19 Sep 2007 03:06:16 +0000
Subject: - fix: quick search error if the query term contained " or ' -
 optimized sql query in sync_users (called every time on admin page) - a lot
 faster when #user_cache_categories is big - added function
 Template->delete_block_vars (opposite of assign_block_vars)

git-svn-id: http://piwigo.org/svn/branches/branch-1_7@2094 68402e56-0260-453c-a942-63ccdbb3a9ee
---
 include/template.php | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

(limited to 'include/template.php')

diff --git a/include/template.php b/include/template.php
index 0e8f626f0..7d93237e6 100644
--- a/include/template.php
+++ b/include/template.php
@@ -295,6 +295,43 @@ class Template {
       return true;
     }
 
+  /**
+   * Block-level variable deletion. Deletes the last block iteration.
+   * if all is true - all blocks are removed
+   * return true if a deletion occured
+   */
+  function delete_block_vars($blockname, $all=false)
+    {
+      $blocks = explode('.', $blockname);
+      $blockcount = count($blocks);
+      $str = '$this->_tpldata';
+      for ($i = 0; $i < $blockcount; $i++)
+      {
+        $str .= '[\'' . $blocks[$i] . '.\']';
+        eval('$lastiteration = isset('.$str.') ? sizeof('.$str.')-1:-1;');
+        if ($lastiteration==-1)
+        {
+          return false;
+        }
+        if ($i==$blockcount-1)
+        {
+          break;
+        }
+        $str .= '[' . $lastiteration . ']';
+      }
+
+      if ($all==true or $lastiteration==0)
+      {
+        $str ='unset('.$str.');';
+      }
+      else
+      {
+        $str ='unset('.$str.'['.$lastiteration.']);';
+      }
+      eval($str);
+      return true;
+    }
+
   /**
    * Root-level variable assignment. Adds to current assignments, overriding
    * any existing variable assignment with the same name.
-- 
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