Deveel.Data.Sql.Statements.DropFunctionStatement.ExecuteStatement C# (CSharp) Метод

        protected override void ExecuteStatement(ExecutionContext context)
        {
            if (!context.DirectAccess.ObjectExists(DbObjectType.Routine, FunctionName)) {
                if (IfExists)
                    return;

                throw new ObjectNotFoundException(FunctionName);
            }

            //if (!context.User.CanDrop(DbObjectType.Routine, FunctionName))
            //	throw new MissingPrivilegesException(context.User.Name, FunctionName, Privileges.Drop);

            if (context.DirectAccess.IsSystemFunction(new Invoke(FunctionName), context.Request))
                throw new InvalidOperationException(String.Format("Cannot drop the system function '{0}'.", FunctionName));

            var routine = context.DirectAccess.GetObject(DbObjectType.Routine, FunctionName);
            if (!(routine is IFunction))
                throw new InvalidOperationException(String.Format("The routine '{0}' is not a function.", FunctionName));

            if (!context.DirectAccess.DropObject(DbObjectType.Routine, FunctionName))
                throw new InvalidOperationException(String.Format("Unable to drop the function '{0}' from the system.", FunctionName));
        }