objection/lib/relations/manyToMany/insert/ManyToManyInsertOperation.js

An SQL-friendly ORM for Node.js

'use strict';

const { RelationInsertOperation } = require('../../RelationInsertOperation');
const { ManyToManyRelateOperation } = require('../relate/ManyToManyRelateOperation');

class ManyToManyInsertOperation extends RelationInsertOperation {
  onAdd(builder, args) {
    const retVal = super.onAdd(builder, args);

    // Omit extra properties so that we don't try to insert
    // them to the related table. We don't actually remove them
    // from the objects, but simply mark them to be removed
    // from the inserted row.
    this.relation.omitExtraProps(this.models);

    return retVal;
  }

  async onAfter1(builder, ret) {
    const inserted = await super.onAfter1(builder, ret);

    const relateOp = new ManyToManyRelateOperation('relate', {
      dontCopyReturning: true,
      dontCopyOnConflict: true,
      relation: this.relation,
      owner: this.owner,
    });

    const modelsToRelate = inserted.filter((it) => {
      return this.relation.relatedProp.hasProps(it);
    });

    if (this.assignResultToOwner && this.owner.isModels) {
      for (const owner of this.owner.modelArray) {
        owner.$appendRelated(this.relation, inserted);
      }
    }

    if (modelsToRelate.length === 0) {
      return inserted;
    }

    relateOp.onAdd(builder, [modelsToRelate]);
    await relateOp.queryExecutor(builder);

    return inserted;
  }
}

module.exports = {
  ManyToManyInsertOperation,
};