79 lines
3.9 KiB
TypeScript
79 lines
3.9 KiB
TypeScript
/*
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* This file is a part of "NMIG" - the database migration tool.
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*
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* Copyright (C) 2016 - present, 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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import DBAccess from './DBAccess';
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import DBAccessQueryResult from './DBAccessQueryResult';
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import DBVendors from './DBVendors';
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import { log } from './FsOps';
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import Conversion from './Conversion';
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/**
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* Retrieves state-log.
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*/
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export async function get(conversion: Conversion, param: string): Promise<boolean> {
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const dbAccess: DBAccess = new DBAccess(conversion);
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const sql: string = `SELECT ${ param } FROM "${ conversion._schema }"."state_logs_${ conversion._schema }${ conversion._mySqlDbName }";`;
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const result: DBAccessQueryResult = await dbAccess.query('MigrationStateManager::get', sql, DBVendors.PG, true, false);
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return result.data.rows[0][param];
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}
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/**
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* Updates the state-log.
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*/
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export async function set(conversion: Conversion, param: string): Promise<void> {
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const dbAccess: DBAccess = new DBAccess(conversion);
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const sql: string = `UPDATE "${ conversion._schema }"."state_logs_${ conversion._schema }${ conversion._mySqlDbName }" SET ${ param } = TRUE;`;
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await dbAccess.query('MigrationStateManager::set', sql, DBVendors.PG, true, false);
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}
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/**
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* Creates the "{schema}"."state_logs_{self._schema + self._mySqlDbName}" temporary table.
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*/
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export async function createStateLogsTable(conversion: Conversion): Promise<Conversion> {
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const dbAccess: DBAccess = new DBAccess(conversion);
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let sql: string = `CREATE TABLE IF NOT EXISTS "${ conversion._schema }"."state_logs_${ conversion._schema }${ conversion._mySqlDbName }"(
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"tables_loaded" BOOLEAN, "per_table_constraints_loaded" BOOLEAN, "foreign_keys_loaded" BOOLEAN, "views_loaded" BOOLEAN);`;
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let result: DBAccessQueryResult = await dbAccess.query('MigrationStateManager::createStateLogsTable', sql, DBVendors.PG, true, true);
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sql = `SELECT COUNT(1) AS cnt FROM "${ conversion._schema }"."state_logs_${ conversion._schema }${ conversion._mySqlDbName }";`;
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result = await dbAccess.query('MigrationStateManager::createStateLogsTable', sql, DBVendors.PG, true, true, result.client);
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if (+result.data.rows[0].cnt === 0) {
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sql = `INSERT INTO "${ conversion._schema }"."state_logs_${ conversion._schema }${ conversion._mySqlDbName }" VALUES (FALSE, FALSE, FALSE, FALSE);`;
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await await dbAccess.query('MigrationStateManager::createStateLogsTable', sql, DBVendors.PG, true, false, result.client);
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return conversion;
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}
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const msg: string = '\t--[MigrationStateManager::createStateLogsTable] table ' +
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'"${ conversion._schema }"."state_logs_${ conversion._schema }${ conversion._mySqlDbName }" is created...';
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log(conversion, msg);
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return conversion;
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}
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/**
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* Drop the "{schema}"."state_logs_{self._schema + self._mySqlDbName}" temporary table.
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*/
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export async function dropStateLogsTable(conversion: Conversion): Promise<void> {
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const dbAccess: DBAccess = new DBAccess(conversion);
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const sql: string = `DROP TABLE "${ conversion._schema }"."state_logs_${ conversion._schema }${ conversion._mySqlDbName }";`;
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await dbAccess.query('MigrationStateManager::dropStateLogsTable', sql, DBVendors.PG, false, false);
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}
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