restore fix #91

src/ydn/db/conn/websql.js

@@ -143,13 +143,17 @@ ydn.db.con.WebSql.prototype.connect = function(dbname, schema) {
               var edited_schema = schema;
               edited_schema.addStore(info_store);
             } else {
-              var sql = me.prepareDropTable_(info_store);
-              tx.executeSql(sql, [],
-                  function(tr) {
-                    // ok
-                  }, function(tx, e) {
-                    throw e;
-                  });
+              var sqls = me.prepareDropTable_(info_store);
+              for (var i = 0; i < sqls.length; i++) {
+                var sql = sqls[i];
+                goog.log.finer(me.logger, sql);
+                tx.executeSql(sql, [],
+                    function(tr) {
+                      // ok
+                    }, function(tx, e) {
+                      throw e;
+                    });
+              }
             }
           }
         }
@@ -436,7 +440,7 @@ ydn.db.con.WebSql.CREATE_INDEX = false;
  *
  * @private
  * @param {ydn.db.schema.Store} table table schema.
- * @return {string} SQL statement for dropping the table.
+ * @return {!Array.<string>} SQL statement for dropping the table.
  */
 ydn.db.con.WebSql.prototype.prepareDropTable_ = function(table) {
 
@@ -460,7 +464,7 @@ ydn.db.con.WebSql.prototype.prepareDropTable_ = function(table) {
 
   }
 
-  return sqls.join(';');
+  return sqls;
 };
 
 
@@ -882,7 +886,7 @@ ydn.db.con.WebSql.prototype.update_store_with_info_ = function(trans,
       goog.log.warning(this.logger,
           'table: ' + table_schema.getName() + ' has changed by ' + msg +
           ' ALTER TABLE cannot run in WebSql, dropping old table.');
-      sqls.unshift(this.prepareDropTable_(existing_table_schema));
+      sqls.unshift.apply(sqls, this.prepareDropTable_(existing_table_schema));
     }
   }