@bigtest/mirage/tests/integration/orm/has-many/8-many-to-many/_helper.js

A client-side server to develop, test and prototype your app.

import { Model, hasMany, Db, Schema } from '@bigtest/mirage';
/*
  A model with a hasMany association can be in eight states
  with respect to its association. This helper class
  returns a parent (and its children) in these various states.

  The return value is an array of the form

    [ parent, [child1, child2...] ]

  where the children array may be empty.
*/
export default class Helper {
  constructor() {
    this.db = new Db();

    // implicit inverse
    this.schema = new Schema(this.db, {
      order: Model.extend({
        products: hasMany()
      }),
      product: Model.extend({
        orders: hasMany()
      })
    });
  }

  savedParentNoChildren() {
    let order = this.db.orders.insert({ name: 'Red' });

    return [ this.schema.orders.find(order.id), [] ];
  }

  savedParentNewChildren() {
    let order = this.schema.orders.create({ name: 'Red' });
    let product1 = this.schema.products.new({ name: 'Blue' });
    let product2 = this.schema.products.new({ name: 'Green' });

    order.products = [ product1, product2 ];

    return [ order, [ product1, product2 ] ];
  }

  savedParentSavedChildren() {
    let { schema } = this;
    schema.db.orders.insert([
      { id: '1', name: 'Red', productIds: ['2', '3'] }
    ]);
    schema.db.products.insert([
      { id: '2', name: 'Blue', orderIds: ['1'] },
      { id: '3', name: 'Green', orderIds: ['1'] }
    ]);

    return [ schema.orders.find(1), [ schema.products.find(2), schema.products.find(3) ] ];
  }

  savedParentMixedChildren() {
    this.schema.db.orders.insert([
      { id: '1', name: 'Red', productIds: ['2'] }
    ]);
    this.schema.db.products.insert([
      { id: '2', name: 'Blue', orderIds: ['1'] }
    ]);
    let order = this.schema.orders.find(1);
    let product1 = this.schema.products.find(2);
    let product2 = this.schema.products.new({ name: 'Green' });

    order.products = [ product1, product2 ];

    return [ order, [ product1, product2 ] ];
  }

  newParentNoChildren() {
    let order = this.schema.orders.new({ name: 'Red' });

    return [ order, [] ];
  }

  newParentNewChildren() {
    let order = this.schema.orders.new({ name: 'Red' });
    let product1 = this.schema.products.new({ name: 'Blue' });
    let product2 = this.schema.products.new({ name: 'Green' });

    order.products = [ product1, product2 ];

    return [ order, [ product1, product2 ] ];
  }

  newParentSavedChildren() {
    let order = this.schema.orders.new({ name: 'Red' });
    let product1 = this.schema.products.create({ name: 'Blue' });
    let product2 = this.schema.products.create({ name: 'Green' });

    order.products = [ product1, product2 ];

    return [ order, [ product1, product2 ] ];
  }

  newParentMixedChildren() {
    let order = this.schema.orders.new({ name: 'Red' });
    let product1 = this.schema.products.create({ name: 'Blue' });
    let product2 = this.schema.products.new({ name: 'Green' });

    order.products = [ product1, product2 ];

    return [ order, [ product1, product2 ] ];
  }

  // Unassociated child models, used for setting tests
  savedChild() {
    let insertedProduct = this.db.products.insert({ name: 'Blue' });

    return this.schema.products.find(insertedProduct.id);
  }

  newChild() {
    return this.schema.products.new({ name: 'Blue' });
  }
}

export const states = [
  'savedParentNoChildren',
  'savedParentNewChildren',
  'savedParentMixedChildren',
  'savedParentSavedChildren',
  'newParentNoChildren',
  'newParentNewChildren',
  'newParentSavedChildren',
  'newParentMixedChildren'
];