Clear tranformation information when deleting Columns, VIEWs, Tables and Databses

libraries/database_interface.lib.php

@@ -743,6 +743,33 @@ function PMA_DBI_get_tables_full($database, $table = false,
     }
 }
 
+
+/**
+ * Get VIEWs in a particular database
+ *
+ * @param string $db Database name to look in
+ *
+ * @return array $views Set of VIEWs inside the database 
+ */
+function PMA_DBI_getVirtualTables($db)
+{
+    
+    $tables_full = PMA_DBI_get_tables_full($db);
+    $views = array();
+    
+    foreach ($tables_full as $table=>$tmp) {
+        
+        if (PMA_Table::isView($db, $table)) {
+            $views[] = $table;
+        }
+        
+    }
+    
+    return $views;
+    
+}
+
+
 /**
  * returns array with databases containing extended infos about them
  *

libraries/mult_submits.inc.php

@@ -8,6 +8,8 @@ if (! defined('PHPMYADMIN')) {
     exit;
 }
 
+require_once 'libraries/transformations.lib.php';
+
 $common_functions = PMA_CommonFunctions::getInstance();
 
 $request_params = array(
@@ -137,6 +139,7 @@ if (! empty($submit_mult)
     }
 } // end if
 
+$views = PMA_DBI_getVirtualTables($db);
 
 /**
  * Displays the confirmation form if required
@@ -487,6 +490,15 @@ if (!empty($submit_mult) && !empty($what)) {
                 PMA_DBI_select_db($db);
             }
             $result = PMA_DBI_query($a_query);
+            
+            if ($query_type == 'drop_db') {
+                PMA_clearTransformations($selected[$i]);
+            } elseif ($query_type == 'drop_tbl') {
+                PMA_clearTransformations($db, $selected[$i]);
+            } else if ($query_type == 'drop_fld') {
+                PMA_clearTransformations($db, $table ,$selected[$i]);
+            }
+            
         } // end if
     } // end for
 

libraries/transformations.lib.php

@@ -365,4 +365,46 @@ function PMA_transformation_global_html_replace($buffer, $options = array())
     $return = str_replace("[__BUFFER__]", $buffer, $options['string']);
     return $return;
 }
+
+
+/**
+ * Delete related transformation details
+ * after deleting database. table or column
+ *
+ * @param string $db     Database name
+ * @param string $table  Table name
+ * @param string $column Column name
+ *
+ * @return boolean State of the query execution
+ */
+function PMA_clearTransformations($db, $table = '', $column = '')
+{
+    
+    $common_functions = PMA_CommonFunctions::getInstance();
+    $cfgRelation = PMA_getRelationsParam();
+    
+    $delete_sql = 'DELETE FROM '
+        . $common_functions->backquote($cfgRelation['db']) . '.'
+        . $common_functions->backquote($cfgRelation['column_info'])
+        . ' WHERE ';
+    
+    if (($column != '') && ($table != '')) {
+        
+        $delete_sql .= '`db_name` = \'' . $db . '\' AND '
+            . '`table_name` = \'' . $table . '\' AND '
+            . '`column_name` = \'' . $column . '\' ';
+        
+    } else if ($table != '') {
+        
+        $delete_sql .= '`db_name` = \'' . $db . '\' AND '
+            . '`table_name` = \'' . $table . '\' ';
+        
+    } else {
+        $delete_sql .= '`db_name` = \'' . $db . '\' ';
+    }
+    
+    return PMA_DBI_try_query($delete_sql);
+    
+}
+
 ?>

sql.php

@@ -766,6 +766,34 @@ if (isset($GLOBALS['show_as_php']) || ! empty($GLOBALS['validatequery'])) {
 
 // No rows returned -> move back to the calling page
 if ((0 == $num_rows && 0 == $unlim_num_rows) || $is_affected) {
+    
+    // Delete related tranformation information
+    if (!empty($analyzed_sql[0]['querytype'])
+        && (($analyzed_sql[0]['querytype'] == 'ALTER')
+        || ($analyzed_sql[0]['querytype'] == 'DROP'))
+    ) {
+        
+        require_once 'libraries/transformations.lib.php';
+        if ($analyzed_sql[0]['querytype'] == 'ALTER') {
+            
+            if (stripos($analyzed_sql[0]['unsorted_query'], 'DROP') !== false) {
+                
+                $drop_column = PMA_getColumnNameInColumnDropSql(
+                    $analyzed_sql[0]['unsorted_query']
+                );
+                
+                if ($drop_column != '') {
+                    PMA_clearTransformations($db, $table, $drop_column);
+                }
+                
+            }
+            
+        } else if (($analyzed_sql[0]['querytype'] == 'DROP') && ($table != '')) {
+            PMA_clearTransformations($db, $table);
+        }
+
+    }
+    
     if ($is_delete) {
         $message = PMA_Message::deleted_rows($num_rows);
     } elseif ($is_insert) {
@@ -1472,5 +1500,34 @@ function PMA_getSqlWithLimitClause($full_sql_query, $analyzed_sql, $sql_limit_to
     return $analyzed_sql[0]['section_before_limit'] . "\n"
         . $sql_limit_to_append . $analyzed_sql[0]['section_after_limit'];    
 }
+
+
+/**
+ * Get column name from a drop SQL statement
+ *
+ * @param string $sql SQL query
+ *
+ * @return string $drop_column Name of the column
+ */
+function PMA_getColumnNameInColumnDropSql($sql)
+{
+    
+    $tmpArray1 = explode('DROP', $sql);    
+    $str_to_check = trim($tmpArray1[1]);
+
+    if (stripos($str_to_check, 'COLUMN') !== false) {
+        $tmpArray2 = explode('COLUMN', $str_to_check);
+        $str_to_check = trim($tmpArray2[1]);
+    }
+
+    $tmpArray3 = explode(' ', $str_to_check);
+    $str_to_check = trim($tmpArray3[0]);
+
+    $drop_column = str_replace(';', '', trim($str_to_check));
+    $drop_column = str_replace('`', '', $drop_column);
+    
+    return $drop_column;
+    
+}
         
 ?>