dblayer : Add dropTable support

git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@1644 bf3deb0d-5f1a-0410-827f-c0cc1f45334c

dblayer.php

@@ -689,6 +689,32 @@ class dblayer extends PDO
     return $arr;
   }
 
+  /** Drop the table */
+  public function dropTable ()
+  {
+    if ($this->db === null)
+      throw new Exception (_("Database not connected"));
+    switch ($this->db->getAttribute(PDO::ATTR_DRIVER_NAME))
+    {
+    case "sqlite":
+      $sql = "DROP TABLE `$this->tableprefix$this->table`";
+      break;
+    case "mysql":
+      $sql = "DROP TABLE `$this->tableprefix$this->table`";
+      break;
+    case "pgsql":
+      $sql = "DROP TABLE `$this->tableprefix$this->table`";
+      break;
+    default:
+      throw new Exception (sprintf (_("Unknown DB engine for drop table '%s'"),
+                           $this->db->getAttribute(PDO::ATTR_DRIVER_NAME)),
+                           500);
+    }
+    if ($this->debug)
+      echo "$sql\n";
+    return $this->db->exec($sql);
+  }
+
   /** Create the table defined by the differents fields.
       Define the SQL syntax based on SQL engines
       $table = "dns zones";