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68 lines
1.9 KiB
68 lines
1.9 KiB
import {MigrationInterface, QueryRunner, Table, TableColumn, TableIndex} from 'typeorm';
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import {datetime, now} from 'app/gen-server/sqlUtils';
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export class Aliases1561589211752 implements MigrationInterface {
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public async up(queryRunner: QueryRunner): Promise<any> {
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const dbType = queryRunner.connection.driver.options.type;
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// Make a table for document aliases.
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await queryRunner.createTable(new Table({
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name: 'aliases',
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columns: [
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{
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name: 'url_id',
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type: 'varchar',
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isPrimary: true
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},
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{
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name: 'org_id',
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type: 'integer',
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isPrimary: true
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},
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{
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name: 'doc_id',
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type: 'varchar',
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isNullable: true // nullable in case in future we make aliases for other resources
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},
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{
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name: "created_at",
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type: datetime(dbType),
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default: now(dbType)
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}
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],
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foreignKeys: [
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{
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columnNames: ['doc_id'],
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referencedColumnNames: ['id'],
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referencedTableName: 'docs',
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onDelete: 'CASCADE' // delete alias if doc goes away
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},
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{
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columnNames: ['org_id'],
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referencedColumnNames: ['id'],
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referencedTableName: 'orgs'
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// no CASCADE set - let deletions be triggered via docs
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}
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]
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}));
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// Add preferred alias to docs. Not quite a foreign key (we'd need org as well)
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await queryRunner.addColumn('docs', new TableColumn({
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name: 'url_id',
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type: 'varchar',
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isNullable: true
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}));
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await queryRunner.createIndex("docs", new TableIndex({
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name: "docs__url_id",
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columnNames: ["url_id"]
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}));
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}
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public async down(queryRunner: QueryRunner): Promise<any> {
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await queryRunner.dropIndex('docs', 'docs__url_id');
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await queryRunner.dropColumn('docs', 'url_id');
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await queryRunner.dropTable('aliases');
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}
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}
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