Ejemplo n.º 1
0
        private void TranslateCommandTree(DbCommandTree commandTree, DbCommand command)
        {
            SqlBaseGenerator sqlGenerator = null;

            DbQueryCommandTree select;
            DbInsertCommandTree insert;
            DbUpdateCommandTree update;
            DbDeleteCommandTree delete;
            if ((select = commandTree as DbQueryCommandTree) != null)
            {
                sqlGenerator = new SqlSelectGenerator(select);
            }
            else if ((insert = commandTree as DbInsertCommandTree) != null)
            {
                sqlGenerator = new SqlInsertGenerator(insert);
            }
            else if ((update = commandTree as DbUpdateCommandTree) != null)
            {
                sqlGenerator = new SqlUpdateGenerator(update);
            }
            else if ((delete = commandTree as DbDeleteCommandTree) != null)
            {
                sqlGenerator = new SqlDeleteGenerator(delete);
            }
            else
            {
                // TODO: get a message (unsupported DbCommandTree type)
                throw new ArgumentException();
            }

            sqlGenerator.BuildCommand(command);
        }
Ejemplo n.º 2
0
        internal void TranslateCommandTree(Version serverVersion, DbCommandTree commandTree, DbCommand command, bool createParametersForNonSelect = true)
        {
            SqlBaseGenerator sqlGenerator = null;

            DbQueryCommandTree select;
            DbInsertCommandTree insert;
            DbUpdateCommandTree update;
            DbDeleteCommandTree delete;
            if ((select = commandTree as DbQueryCommandTree) != null)
            {
                sqlGenerator = new SqlSelectGenerator(select);
            }
            else if ((insert = commandTree as DbInsertCommandTree) != null)
            {
                sqlGenerator = new SqlInsertGenerator(insert);
            }
            else if ((update = commandTree as DbUpdateCommandTree) != null)
            {
                sqlGenerator = new SqlUpdateGenerator(update);
            }
            else if ((delete = commandTree as DbDeleteCommandTree) != null)
            {
                sqlGenerator = new SqlDeleteGenerator(delete);
            }
            else
            {
                // TODO: get a message (unsupported DbCommandTree type)
                throw new ArgumentException();
            }
            sqlGenerator._createParametersForConstants = select != null ? false : createParametersForNonSelect;
            sqlGenerator._command = (NpgsqlCommand)command;
            sqlGenerator.Version = serverVersion;

            sqlGenerator.BuildCommand(command);
        }