68 lines
2.5 KiB
JavaScript
68 lines
2.5 KiB
JavaScript
/*
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* This file is a part of "NMIG" - the database migration tool.
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*
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* Copyright 2016 Anatoly Khaytovich <anatolyuss@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program (please see the "LICENSE.md" file).
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* If not, see <http://www.gnu.org/licenses/gpl.txt>.
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*
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* @author Anatoly Khaytovich <anatolyuss@gmail.com>
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*/
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'use strict';
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const connect = require('./Connector');
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const generateError = require('./ErrorGenerator');
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/**
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* Create a new database schema.
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* Insure a uniqueness of a new schema name.
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*
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* @param {Conversion} self
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* @returns {Promise}
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*/
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module.exports = function(self) {
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return connect(self).then(() => {
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return new Promise((resolve, reject) => {
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self._pg.connect((error, client, done) => {
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if (error) {
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generateError(self, '\t--[createSchema] Cannot connect to PostgreSQL server...\n' + error);
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reject();
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} else {
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let sql = "SELECT schema_name FROM information_schema.schemata WHERE schema_name = '" + self._schema + "';";
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client.query(sql, (err, result) => {
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if (err) {
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done();
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generateError(self, '\t--[createSchema] ' + err, sql);
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reject();
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} else if (result.rows.length === 0) {
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sql = 'CREATE SCHEMA "' + self._schema + '";';
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client.query(sql, err => {
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done();
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if (err) {
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generateError(self, '\t--[createSchema] ' + err, sql);
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reject();
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} else {
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resolve();
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}
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});
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} else {
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resolve();
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}
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});
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}
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});
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});
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});
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};
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