Column with CHECK Constraint

Is there a support in TypeORM for check contraints? Something like price numeric CHECK (price > 0)? If not maybe it would be a good idea to add that support? It could look like this:

@Column()
@Constraint('price > 0')
price: number;

[AlexMesser]

Check constraints introduced in typeorm@0.2.0-alpha.29. You can try it via npm i typeorm@next.

Checks work only on table level, e.g.

Entity()
@Check(`"name" IS NOT NULL AND "title" <> 'asd'`)
@Check(`"version" > 0`)
export class Post {

The docs will be updated soon.

[arnold-almeida]

FYI for those of you who prefer the migration API

const driver = queryRunner.connection.driver
await queryRunner.createCheckConstraint('table', new TableCheck({
  columnNames: ['col'],
  expression: `${driver.escape('col')} > 0`
}))

From: https://github.com/typeorm/typeorm/blob/master/test/functional/query-runner/create-check-constraint.ts