objection/lib/relations/manyToMany/ManyToManyFindOperation.js

An SQL-friendly ORM for Node.js

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = undefined;

var _create = require('babel-runtime/core-js/object/create');

var _create2 = _interopRequireDefault(_create);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _RelationFindOperation = require('../RelationFindOperation');

var _RelationFindOperation2 = _interopRequireDefault(_RelationFindOperation);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var ownerJoinColumnAliasPrefix = 'objectiontmpjoin';

var ManyToManyFindOperation = function (_RelationFindOperatio) {
  (0, _inherits3.default)(ManyToManyFindOperation, _RelationFindOperatio);

  function ManyToManyFindOperation(name, opt) {
    (0, _classCallCheck3.default)(this, ManyToManyFindOperation);

    var _this = (0, _possibleConstructorReturn3.default)(this, _RelationFindOperatio.call(this, name, opt));

    _this.ownerJoinColumnAlias = new Array(_this.relation.joinTableOwnerCol.length);

    for (var i = 0, l = _this.relation.joinTableOwnerCol.length; i < l; ++i) {
      _this.ownerJoinColumnAlias[i] = ownerJoinColumnAliasPrefix + i;
    }
    return _this;
  }

  ManyToManyFindOperation.prototype.onBeforeBuild = function onBeforeBuild(builder) {
    var relatedModelClass = this.relation.relatedModelClass;
    var ids = new Array(this.owners.length);

    for (var i = 0, l = this.owners.length; i < l; ++i) {
      ids[i] = this.owners[i].$values(this.relation.ownerProp);
    }

    if (!builder.has(builder.constructor.SelectSelector)) {
      // If the user hasn't specified a select clause, select the related model's columns.
      // If we don't do this we also get the join table's columns.
      builder.select(relatedModelClass.tableName + '.*');

      // Also select all extra columns.
      for (var _i = 0, _l = this.relation.joinTableExtras.length; _i < _l; ++_i) {
        var extra = this.relation.joinTableExtras[_i];
        var joinTable = this.relation.joinTable;

        builder.select(joinTable + '.' + extra.joinTableCol + ' as ' + extra.aliasCol);
      }
    }

    this.relation.findQuery(builder, {
      ownerIds: _lodash2.default.uniqBy(ids, join)
    });

    var fullJoinTableOwnerCol = this.relation.fullJoinTableOwnerCol();
    // We must select the owner join columns so that we know for which owner model the related
    // models belong to after the requests.
    for (var _i2 = 0, _l2 = fullJoinTableOwnerCol.length; _i2 < _l2; ++_i2) {
      builder.select(fullJoinTableOwnerCol[_i2] + ' as ' + this.ownerJoinColumnAlias[_i2]);

      // Mark them to be omitted later.
      this.omitProps.push(relatedModelClass.columnNameToPropertyName(this.ownerJoinColumnAlias[_i2]));
    }

    this.addJoinColumnSelects(builder);
  };

  ManyToManyFindOperation.prototype.onAfterInternal = function onAfterInternal(builder, related) {
    var isOneToOne = this.relation.isOneToOne();
    var relatedByOwnerId = (0, _create2.default)(null);

    for (var i = 0, l = related.length; i < l; ++i) {
      var rel = related[i];
      var key = rel.$propKey(this.ownerJoinColumnAlias);
      var arr = relatedByOwnerId[key];

      if (!arr) {
        arr = [];
        relatedByOwnerId[key] = arr;
      }

      arr.push(rel);
    }

    for (var _i3 = 0, _l3 = this.owners.length; _i3 < _l3; ++_i3) {
      var own = this.owners[_i3];
      var _key = own.$propKey(this.relation.ownerProp);
      var _related = relatedByOwnerId[_key];

      if (isOneToOne) {
        own[this.relation.name] = _related && _related[0] || null;
      } else {
        own[this.relation.name] = _related || [];
      }
    }

    if (this.alwaysReturnArray) {
      return related;
    } else {
      return isOneToOne ? related[0] || undefined : related;
    }
  };

  return ManyToManyFindOperation;
}(_RelationFindOperation2.default);

exports.default = ManyToManyFindOperation;


function join(arr) {
  return arr.join();
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"sources":["ManyToManyFindOperation.js"],"names":["ownerJoinColumnAliasPrefix","ManyToManyFindOperation","name","opt","ownerJoinColumnAlias","Array","relation","joinTableOwnerCol","length","i","l","onBeforeBuild","builder","relatedModelClass","ids","owners","$values","ownerProp","has","constructor","SelectSelector","select","tableName","joinTableExtras","extra","joinTable","joinTableCol","aliasCol","findQuery","ownerIds","uniqBy","join","fullJoinTableOwnerCol","omitProps","push","columnNameToPropertyName","addJoinColumnSelects","onAfterInternal","related","isOneToOne","relatedByOwnerId","rel","key","$propKey","arr","own","alwaysReturnArray","undefined"],"mappings":";;;;;;;;;;;;;;;;;;;;;;;AAAA;;;;AACA;;;;;;AAEA,IAAMA,6BAA6B,kBAAnC;;IAEqBC,uB;;;AAEnB,mCAAYC,IAAZ,EAAkBC,GAAlB,EAAuB;AAAA;;AAAA,+DACrB,iCAAMD,IAAN,EAAYC,GAAZ,CADqB;;AAGrB,UAAKC,oBAAL,GAA4B,IAAIC,KAAJ,CAAU,MAAKC,QAAL,CAAcC,iBAAd,CAAgCC,MAA1C,CAA5B;;AAEA,SAAK,IAAIC,IAAI,CAAR,EAAWC,IAAI,MAAKJ,QAAL,CAAcC,iBAAd,CAAgCC,MAApD,EAA4DC,IAAIC,CAAhE,EAAmE,EAAED,CAArE,EAAwE;AACtE,YAAKL,oBAAL,CAA0BK,CAA1B,IAA+BT,6BAA6BS,CAA5D;AACD;AAPoB;AAQtB;;oCAEDE,a,0BAAcC,O,EAAS;AACrB,QAAMC,oBAAoB,KAAKP,QAAL,CAAcO,iBAAxC;AACA,QAAMC,MAAM,IAAIT,KAAJ,CAAU,KAAKU,MAAL,CAAYP,MAAtB,CAAZ;;AAEA,SAAK,IAAIC,IAAI,CAAR,EAAWC,IAAI,KAAKK,MAAL,CAAYP,MAAhC,EAAwCC,IAAIC,CAA5C,EAA+C,EAAED,CAAjD,EAAoD;AAClDK,UAAIL,CAAJ,IAAS,KAAKM,MAAL,CAAYN,CAAZ,EAAeO,OAAf,CAAuB,KAAKV,QAAL,CAAcW,SAArC,CAAT;AACD;;AAED,QAAI,CAACL,QAAQM,GAAR,CAAYN,QAAQO,WAAR,CAAoBC,cAAhC,CAAL,EAAsD;AACpD;AACA;AACAR,cAAQS,MAAR,CAAeR,kBAAkBS,SAAlB,GAA8B,IAA7C;;AAEA;AACA,WAAK,IAAIb,KAAI,CAAR,EAAWC,KAAI,KAAKJ,QAAL,CAAciB,eAAd,CAA8Bf,MAAlD,EAA0DC,KAAIC,EAA9D,EAAiE,EAAED,EAAnE,EAAsE;AACpE,YAAMe,QAAQ,KAAKlB,QAAL,CAAciB,eAAd,CAA8Bd,EAA9B,CAAd;AACA,YAAMgB,YAAY,KAAKnB,QAAL,CAAcmB,SAAhC;;AAEAb,gBAAQS,MAAR,CAAkBI,SAAlB,SAA+BD,MAAME,YAArC,YAAwDF,MAAMG,QAA9D;AACD;AACF;;AAED,SAAKrB,QAAL,CAAcsB,SAAd,CAAwBhB,OAAxB,EAAiC;AAC/BiB,gBAAU,iBAAEC,MAAF,CAAShB,GAAT,EAAciB,IAAd;AADqB,KAAjC;;AAIA,QAAMC,wBAAwB,KAAK1B,QAAL,CAAc0B,qBAAd,EAA9B;AACA;AACA;AACA,SAAK,IAAIvB,MAAI,CAAR,EAAWC,MAAIsB,sBAAsBxB,MAA1C,EAAkDC,MAAIC,GAAtD,EAAyD,EAAED,GAA3D,EAA8D;AAC5DG,cAAQS,MAAR,CAAeW,sBAAsBvB,GAAtB,IAA2B,MAA3B,GAAoC,KAAKL,oBAAL,CAA0BK,GAA1B,CAAnD;;AAEA;AACA,WAAKwB,SAAL,CAAeC,IAAf,CAAoBrB,kBAAkBsB,wBAAlB,CAA2C,KAAK/B,oBAAL,CAA0BK,GAA1B,CAA3C,CAApB;AACD;;AAED,SAAK2B,oBAAL,CAA0BxB,OAA1B;AACD,G;;oCAEDyB,e,4BAAgBzB,O,EAAS0B,O,EAAS;AAChC,QAAMC,aAAa,KAAKjC,QAAL,CAAciC,UAAd,EAAnB;AACA,QAAMC,mBAAmB,sBAAc,IAAd,CAAzB;;AAEA,SAAK,IAAI/B,IAAI,CAAR,EAAWC,IAAI4B,QAAQ9B,MAA5B,EAAoCC,IAAIC,CAAxC,EAA2C,EAAED,CAA7C,EAAgD;AAC9C,UAAMgC,MAAMH,QAAQ7B,CAAR,CAAZ;AACA,UAAMiC,MAAMD,IAAIE,QAAJ,CAAa,KAAKvC,oBAAlB,CAAZ;AACA,UAAIwC,MAAMJ,iBAAiBE,GAAjB,CAAV;;AAEA,UAAI,CAACE,GAAL,EAAU;AACRA,cAAM,EAAN;AACAJ,yBAAiBE,GAAjB,IAAwBE,GAAxB;AACD;;AAEDA,UAAIV,IAAJ,CAASO,GAAT;AACD;;AAED,SAAK,IAAIhC,MAAI,CAAR,EAAWC,MAAI,KAAKK,MAAL,CAAYP,MAAhC,EAAwCC,MAAIC,GAA5C,EAA+C,EAAED,GAAjD,EAAoD;AAClD,UAAMoC,MAAM,KAAK9B,MAAL,CAAYN,GAAZ,CAAZ;AACA,UAAMiC,OAAMG,IAAIF,QAAJ,CAAa,KAAKrC,QAAL,CAAcW,SAA3B,CAAZ;AACA,UAAMqB,WAAUE,iBAAiBE,IAAjB,CAAhB;;AAEA,UAAIH,UAAJ,EAAgB;AACdM,YAAI,KAAKvC,QAAL,CAAcJ,IAAlB,IAA2BoC,YAAWA,SAAQ,CAAR,CAAZ,IAA2B,IAArD;AACD,OAFD,MAEO;AACLO,YAAI,KAAKvC,QAAL,CAAcJ,IAAlB,IAA0BoC,YAAW,EAArC;AACD;AACF;;AAED,QAAI,KAAKQ,iBAAT,EAA4B;AAC1B,aAAOR,OAAP;AACD,KAFD,MAEO;AACL,aAAOC,aAAaD,QAAQ,CAAR,KAAcS,SAA3B,GAAuCT,OAA9C;AACD;AACF,G;;;;;kBArFkBrC,uB;;;AAwFrB,SAAS8B,IAAT,CAAca,GAAd,EAAmB;AACjB,SAAOA,IAAIb,IAAJ,EAAP;AACD","file":"ManyToManyFindOperation.js","sourcesContent":["import _ from 'lodash';\nimport RelationFindOperation from '../RelationFindOperation';\n\nconst ownerJoinColumnAliasPrefix = 'objectiontmpjoin';\n\nexport default class ManyToManyFindOperation extends RelationFindOperation {\n\n  constructor(name, opt) {\n    super(name, opt);\n\n    this.ownerJoinColumnAlias = new Array(this.relation.joinTableOwnerCol.length);\n\n    for (let i = 0, l = this.relation.joinTableOwnerCol.length; i < l; ++i) {\n      this.ownerJoinColumnAlias[i] = ownerJoinColumnAliasPrefix + i;\n    }\n  }\n\n  onBeforeBuild(builder) {\n    const relatedModelClass = this.relation.relatedModelClass;\n    const ids = new Array(this.owners.length);\n\n    for (let i = 0, l = this.owners.length; i < l; ++i) {\n      ids[i] = this.owners[i].$values(this.relation.ownerProp);\n    }\n\n    if (!builder.has(builder.constructor.SelectSelector)) {\n      // If the user hasn't specified a select clause, select the related model's columns.\n      // If we don't do this we also get the join table's columns.\n      builder.select(relatedModelClass.tableName + '.*');\n\n      // Also select all extra columns.\n      for (let i = 0, l = this.relation.joinTableExtras.length; i < l; ++i) {\n        const extra = this.relation.joinTableExtras[i];\n        const joinTable = this.relation.joinTable;\n\n        builder.select(`${joinTable}.${extra.joinTableCol} as ${extra.aliasCol}`);\n      }\n    }\n\n    this.relation.findQuery(builder, {\n      ownerIds: _.uniqBy(ids, join)\n    });\n\n    const fullJoinTableOwnerCol = this.relation.fullJoinTableOwnerCol();\n    // We must select the owner join columns so that we know for which owner model the related\n    // models belong to after the requests.\n    for (let i = 0, l = fullJoinTableOwnerCol.length; i < l; ++i) {\n      builder.select(fullJoinTableOwnerCol[i] + ' as ' + this.ownerJoinColumnAlias[i]);\n\n      // Mark them to be omitted later.\n      this.omitProps.push(relatedModelClass.columnNameToPropertyName(this.ownerJoinColumnAlias[i]));\n    }\n\n    this.addJoinColumnSelects(builder);\n  }\n\n  onAfterInternal(builder, related) {\n    const isOneToOne = this.relation.isOneToOne();\n    const relatedByOwnerId = Object.create(null);\n\n    for (let i = 0, l = related.length; i < l; ++i) {\n      const rel = related[i];\n      const key = rel.$propKey(this.ownerJoinColumnAlias);\n      let arr = relatedByOwnerId[key];\n\n      if (!arr) {\n        arr = [];\n        relatedByOwnerId[key] = arr;\n      }\n\n      arr.push(rel);\n    }\n\n    for (let i = 0, l = this.owners.length; i < l; ++i) {\n      const own = this.owners[i];\n      const key = own.$propKey(this.relation.ownerProp);\n      const related = relatedByOwnerId[key];\n\n      if (isOneToOne) {\n        own[this.relation.name] = (related && related[0]) || null;\n      } else {\n        own[this.relation.name] = related || [];\n      }\n    }\n\n    if (this.alwaysReturnArray) {\n      return related;\n    } else {\n      return isOneToOne ? related[0] || undefined : related;\n    }\n  }\n}\n\nfunction join(arr) {\n  return arr.join();\n}"]}