CRUD(Insert/Update/Delete)

The following uses the test-vona module as an example to explain the usage of Insert/Update/Delete in CRUD.

In addition, Vona ORM provides Mutate operations, which can perform corresponding Insert/Update/Delete operations based on the characteristics of the input data.

insert

class ServicePost {
  async create() {
    const post = await this.scope.model.post.insert({
      title: 'Post001',
    });
    console.log(post.id);
    return post;
  }
}

insertBulk

class ServicePost {
  async createBulk() {
    const posts = await this.scope.model.post.insertBulk([
      { title: 'Post001' },
      { title: 'Post002' },
    ]);
    console.log(posts[0].id, posts[1].id);
    return posts;
  }
}

update

class ServicePost {
  async update() {
    const post = await this.scope.model.post.update({
      id: 1,
      title: 'Post001-Update',
    });
    return post;
  }
}

class ServicePost {
  async update2() {
    const post = await this.scope.model.post.update(
      {
        title: 'Post001-Update',
      },
      {
        where: {
          title: { _startsWith_: 'Post001' },
        },
      },
    );
    return post;
  }
}

updateBulk

class ServicePost {
  async updateBulk() {
    const posts = await this.scope.model.post.updateBulk([
      { id: 1, title: 'Post001-Update' },
      { id: 2, title: 'Post002-Update' },
    ]);
    return posts;
  }
}

delete

class ServicePost {
  async delete() {
    await this.scope.model.post.delete({
      id: 1,
    });
  }
}

class ServicePost {
  async delete2() {
    await this.scope.model.post.delete({
      title: {
        _startsWith_: 'Post',
      },
    });
  }
}

deleteBulk

class ServicePost {
  async deleteBulk() {
    await this.scope.model.post.deleteBulk([1, 2]);
  }
}

mutate

mutate is a hybrid operation of insert/update/delete. The system will perform corresponding change operations based on the characteristics of the input data.

Data characteristics	Change operations
The id field does not exist	insert
The id field exists	update
The id field exists and the deleted field value is true	delete

class ServicePost {
  async mutate() {
    // insert
    const post = await this.scope.model.post.mutate({
      title: 'Post001',
    });
    // update
    await this.scope.model.post.mutate({
      id: post.id,
      title: 'Post001-Update',
    });
    // delete
    await this.scope.model.post.mutate({
      id: post.id,
      deleted: true,
    });
  }
}

mutateBulk

class ServicePost {
  async mutateBulk() {
    await this.scope.model.post.mutateBulk([
      // insert
      { title: 'Post003' },
      // update
      { id: 1, title: 'Post001-Update' },
      // delete
      { id: 2, deleted: true },
    ]);
  }
}