Model Validation

use the Validate decorator on odata property to define the validate rule on model.

it will support a subset of validate.js rules, just check the validate.js documentation.

following validation rule will be applied in (CREATE/UPDATE) operations.

it('should support custom format validation', async () => {

  @ODataModel()
  class CustomValModel {

    @UUIDKeyProperty() id: string;

    @Validate({
      format: {
        pattern: /^\d{4}-\d{2}-\d{2}$/,
        message: '^is not a valid date string'
      },
      // allow undefined value
      // set true as mandatory
      presence: false
    })
    @OptionalProperty()
    value: string;

  }

  const conn = await createTmpConnection({
    name: 'val_conn_10',
    entityPrefix: 'val_test_10',
    entities: [CustomValModel]
  });

  const { client, shutdownServer } = await createServerAndClient(conn);

  try {

    const es = client.getEntitySet<CustomValModel>('CustomValModels');

    const d1 = '2020-11-11';
    const v = await es.create({ value: d1 });
    expect(v.value).toBe(d1);

    const v2 = await es.create({});
    expect(v2.value).toBeUndefined();

    await expect(() => es.create({ value: 'djsa-ds-sd' }))
      .rejects.toThrow('property \'value\' is not a valid date string');

    await expect(() => es.create({ value: 'hello 2020-11-11' }))
      .rejects.toThrow('property \'value\' is not a valid date string');

  } finally {
    await shutdownServer();
  }


});