33 lines
982 B
TypeScript
33 lines
982 B
TypeScript
import Migration from "../db/Migration";
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import {Connection} from "mysql";
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import {query} from "../db/MysqlConnectionManager";
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/**
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* Must be the first migration
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*/
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export default class CreateMigrationsTable extends Migration {
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async shouldRun(currentVersion: number): Promise<boolean> {
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try {
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await query('SELECT 1 FROM migrations LIMIT 1');
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} catch (e) {
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if (e.code !== 'ER_NO_SUCH_TABLE') {
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return false;
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}
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}
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return await super.shouldRun(currentVersion);
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}
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async install(connection: Connection): Promise<void> {
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await this.query('CREATE TABLE migrations(' +
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'id INT NOT NULL,' +
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'name VARCHAR(64) NOT NULL,' +
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'migration_date DATE,' +
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'PRIMARY KEY (id)' +
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')', connection);
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}
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async rollback(connection: Connection): Promise<void> {
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await this.query('DROP TABLE migrations', connection);
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}
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} |