Method _disassociateFromHasManyInverses

lib/orm/model.js:812–847

(association)

  // Disassociate currently persisted models that are no longer associated
  _disassociateFromHasManyInverses(association) {
    let fk = association.getForeignKey();
    let tempAssociation =
      this._tempAssociations && this._tempAssociations[association.name];
    let associateIds = this.attrs[fk];

    if (tempAssociation && associateIds) {
      let models;
      if (association.isPolymorphic) {
        models = associateIds.map(({ type, id }) => {
          return this._schema[this._schema.toCollectionName(type)].find(id);
        });
      } else {
        // TODO: prob should initialize hasMany fks with []
        models = this._schema[
          this._schema.toCollectionName(association.modelName)
        ].find(associateIds || []).models;
      }

      models
        .filter(
          (associate) =>
            // filter out models that are already being saved
            !associate.isSaving &&
            // filter out models that will still be associated
            !tempAssociation.includes(associate) &&
            associate.hasInverseFor(association)
        )
        .forEach((associate) => {
          let inverse = associate.inverseFor(association);

          associate.disassociate(this, inverse);
          associate.save();
        });
    }
  }

  /*
    Disassociate currently persisted models that are no longer associated.