Added new methods for transaction to RetroDb.

libretroshare/src/util/retrodb.cc

@@ -264,6 +264,32 @@ std::string RetroDb::getKey() const
 	return mKey;
 }
 
+bool RetroDb::beginTransaction()
+{
+    if (!isOpen()) {
+        return false;
+    }
+
+    return execSQL("BEGIN;");
+}
+
+bool RetroDb::commitTransaction()
+{
+    if (!isOpen()) {
+        return false;
+    }
+
+    return execSQL("COMMIT;");
+}
+bool RetroDb::rollbackTransaction()
+{
+    if (!isOpen()) {
+        return false;
+    }
+
+    return execSQL("ROLLBACK;");
+}
+
 bool RetroDb::execSQL_bind(const std::string &query, std::list<RetroBind*> &paramBindings){
 
     // prepare statement

libretroshare/src/util/retrodb.h

@@ -92,6 +92,24 @@ public:
 
 
 
+    /*!
+     * Start transaction
+     * @return true/false
+     */
+    bool beginTransaction();
+
+    /*!
+     * Commit transaction
+     * @return true/false
+     */
+    bool commitTransaction();
+
+    /*!
+     * Rollback transaction
+     * @return true/false
+     */
+    bool rollbackTransaction();
+
     /*!
      * To a make query which do not return a result \n
      * below are the type of queries this method should be used for \n