zumito-db/dist/migrations/MigrationRunner.js

Multi-driver database abstraction layer with decorator-based models

export class MigrationRunner {
    db;
    migrationsTable = '_zumito_migrations';
    constructor(db) {
        this.db = db;
    }
    async ensureMigrationsTable() {
        const driver = this.db.getDriver();
        const metadata = {
            name: 'MigrationRecord',
            collection: this.migrationsTable,
            fields: [
                { name: 'name', type: 'string', primary: true, unique: true, nullable: false, propertyKey: 'name' },
                { name: 'executed_at', type: 'string', primary: false, unique: false, nullable: false, propertyKey: 'executedAt' },
            ],
            relations: [],
            target: null,
        };
        await driver.ensureSchema(metadata);
    }
    async getExecuted() {
        const driver = this.db.getDriver();
        const results = await driver.find(this.migrationsTable, {
            collection: this.migrationsTable,
            type: 'find',
            where: [],
        });
        return results.map((r) => r.name);
    }
    async runUp(migration) {
        await this.ensureMigrationsTable();
        await migration.up(this.db);
        await this.db.getDriver().insert(this.migrationsTable, {
            name: migration.name,
            executed_at: new Date().toISOString(),
        });
    }
    async runDown(migration) {
        await migration.down(this.db);
        await this.db.getDriver().delete(this.migrationsTable, {
            collection: this.migrationsTable,
            type: 'delete',
            where: [{ field: 'name', operator: 'eq', value: migration.name, logic: 'and' }],
        });
    }
}