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- /*!
- * Module dependencies.
- */
-
- 'use strict';
-
- const CoreMongooseArray = require('./core_array');
- const EmbeddedDocument = require('./embedded');
- const Document = require('../document');
- const ObjectId = require('./objectid');
- const cleanModifiedSubpaths = require('../helpers/document/cleanModifiedSubpaths');
- const get = require('../helpers/get');
- const internalToObjectOptions = require('../options').internalToObjectOptions;
- const utils = require('../utils');
- const util = require('util');
-
- const arrayAtomicsSymbol = require('../helpers/symbols').arrayAtomicsSymbol;
- const arrayParentSymbol = require('../helpers/symbols').arrayParentSymbol;
- const arrayPathSymbol = require('../helpers/symbols').arrayPathSymbol;
- const arraySchemaSymbol = require('../helpers/symbols').arraySchemaSymbol;
- const isMongooseObject = utils.isMongooseObject;
-
- /**
- * Mongoose Array constructor.
- *
- * ####NOTE:
- *
- * _Values always have to be passed to the constructor to initialize, otherwise `MongooseArray#push` will mark the array as modified._
- *
- * @param {Array} values
- * @param {String} path
- * @param {Document} doc parent document
- * @api private
- * @inherits Array
- * @see http://bit.ly/f6CnZU
- */
-
- function MongooseArray(values, path, doc) {
- // TODO: replace this with `new CoreMongooseArray().concat()` when we remove
- // support for node 4.x and 5.x, see https://i.imgur.com/UAAHk4S.png
- const arr = new CoreMongooseArray();
-
- if (Array.isArray(values)) {
- values.forEach(v => { arr.push(v); });
- }
-
- const keysMA = Object.keys(MongooseArray.mixin);
- const numKeys = keysMA.length;
- for (let i = 0; i < numKeys; ++i) {
- arr[keysMA[i]] = MongooseArray.mixin[keysMA[i]];
- }
-
- arr[arrayPathSymbol] = path;
- arr.validators = [];
- arr[arrayAtomicsSymbol] = {};
- arr[arraySchemaSymbol] = void 0;
- if (util.inspect.custom) {
- arr[util.inspect.custom] = arr.inspect;
- }
-
- // Because doc comes from the context of another function, doc === global
- // can happen if there was a null somewhere up the chain (see #3020)
- // RB Jun 17, 2015 updated to check for presence of expected paths instead
- // to make more proof against unusual node environments
- if (doc && doc instanceof Document) {
- arr[arrayParentSymbol] = doc;
- arr[arraySchemaSymbol] = doc.schema.path(path);
- }
-
- return arr;
- }
-
- MongooseArray.mixin = {
- /*!
- * ignore
- */
- toBSON: function() {
- return this.toObject(internalToObjectOptions);
- },
-
- /*!
- * ignore
- */
-
- $parent: function() {
- return this[arrayParentSymbol];
- },
-
- /*!
- * ignore
- */
-
- $schema: function() {
- return this[arraySchemaSymbol];
- },
-
- /*!
- * ignore
- */
-
- $path: function() {
- return this[arrayPathSymbol];
- },
-
- /*!
- * ignore
- */
-
- $atomics: function() {
- return this[arrayAtomicsSymbol];
- },
-
- /**
- * Casts a member based on this arrays schema.
- *
- * @param {any} value
- * @return value the casted value
- * @method _cast
- * @api private
- * @memberOf MongooseArray
- */
-
- _cast: function(value) {
- let populated = false;
- let Model;
-
- if (this[arrayParentSymbol]) {
- populated = this[arrayParentSymbol].populated(this[arrayPathSymbol], true);
- }
-
- if (populated && value !== null && value !== undefined) {
- // cast to the populated Models schema
- Model = populated.options.model || populated.options.Model;
-
- // only objects are permitted so we can safely assume that
- // non-objects are to be interpreted as _id
- if (Buffer.isBuffer(value) ||
- value instanceof ObjectId || !utils.isObject(value)) {
- value = {_id: value};
- }
-
- // gh-2399
- // we should cast model only when it's not a discriminator
- const isDisc = value.schema && value.schema.discriminatorMapping &&
- value.schema.discriminatorMapping.key !== undefined;
- if (!isDisc) {
- value = new Model(value);
- }
- return this[arraySchemaSymbol].caster.applySetters(value, this[arrayParentSymbol], true);
- }
-
- return this[arraySchemaSymbol].caster.applySetters(value, this[arrayParentSymbol], false);
- },
-
- /**
- * Marks this array as modified.
- *
- * If it bubbles up from an embedded document change, then it takes the following arguments (otherwise, takes 0 arguments)
- *
- * @param {EmbeddedDocument} embeddedDoc the embedded doc that invoked this method on the Array
- * @param {String} embeddedPath the path which changed in the embeddedDoc
- * @method _markModified
- * @api private
- * @memberOf MongooseArray
- */
-
- _markModified: function(elem, embeddedPath) {
- const parent = this[arrayParentSymbol];
- let dirtyPath;
-
- if (parent) {
- dirtyPath = this[arrayPathSymbol];
-
- if (arguments.length) {
- if (embeddedPath != null) {
- // an embedded doc bubbled up the change
- dirtyPath = dirtyPath + '.' + this.indexOf(elem) + '.' + embeddedPath;
- } else {
- // directly set an index
- dirtyPath = dirtyPath + '.' + elem;
- }
- }
-
- parent.markModified(dirtyPath, arguments.length > 0 ? elem : parent);
- }
-
- return this;
- },
-
- /**
- * Register an atomic operation with the parent.
- *
- * @param {Array} op operation
- * @param {any} val
- * @method _registerAtomic
- * @api private
- * @memberOf MongooseArray
- */
-
- _registerAtomic: function(op, val) {
- if (op === '$set') {
- // $set takes precedence over all other ops.
- // mark entire array modified.
- this[arrayAtomicsSymbol] = {$set: val};
- cleanModifiedSubpaths(this[arrayParentSymbol], this[arrayPathSymbol]);
- this._markModified();
- return this;
- }
-
- const atomics = this[arrayAtomicsSymbol];
-
- // reset pop/shift after save
- if (op === '$pop' && !('$pop' in atomics)) {
- const _this = this;
- this[arrayParentSymbol].once('save', function() {
- _this._popped = _this._shifted = null;
- });
- }
-
- // check for impossible $atomic combos (Mongo denies more than one
- // $atomic op on a single path
- if (this[arrayAtomicsSymbol].$set ||
- Object.keys(atomics).length && !(op in atomics)) {
- // a different op was previously registered.
- // save the entire thing.
- this[arrayAtomicsSymbol] = {$set: this};
- return this;
- }
-
- let selector;
-
- if (op === '$pullAll' || op === '$addToSet') {
- atomics[op] || (atomics[op] = []);
- atomics[op] = atomics[op].concat(val);
- } else if (op === '$pullDocs') {
- const pullOp = atomics['$pull'] || (atomics['$pull'] = {});
- if (val[0] instanceof EmbeddedDocument) {
- selector = pullOp['$or'] || (pullOp['$or'] = []);
- Array.prototype.push.apply(selector, val.map(function(v) {
- return v.toObject({transform: false, virtuals: false});
- }));
- } else {
- selector = pullOp['_id'] || (pullOp['_id'] = {$in: []});
- selector['$in'] = selector['$in'].concat(val);
- }
- } else if (op === '$push') {
- atomics.$push = atomics.$push || { $each: [] };
- atomics.$push.$each = atomics.$push.$each.concat(val);
- } else {
- atomics[op] = val;
- }
-
- return this;
- },
-
- /**
- * Depopulates stored atomic operation values as necessary for direct insertion to MongoDB.
- *
- * If no atomics exist, we return all array values after conversion.
- *
- * @return {Array}
- * @method $__getAtomics
- * @memberOf MongooseArray
- * @instance
- * @api private
- */
-
- $__getAtomics: function() {
- const ret = [];
- const keys = Object.keys(this[arrayAtomicsSymbol]);
- let i = keys.length;
-
- const opts = Object.assign({}, internalToObjectOptions, { _isNested: true });
-
- if (i === 0) {
- ret[0] = ['$set', this.toObject(opts)];
- return ret;
- }
-
- while (i--) {
- const op = keys[i];
- let val = this[arrayAtomicsSymbol][op];
-
- // the atomic values which are arrays are not MongooseArrays. we
- // need to convert their elements as if they were MongooseArrays
- // to handle populated arrays versus DocumentArrays properly.
- if (isMongooseObject(val)) {
- val = val.toObject(opts);
- } else if (Array.isArray(val)) {
- val = this.toObject.call(val, opts);
- } else if (val != null && Array.isArray(val.$each)) {
- val.$each = this.toObject.call(val.$each, opts);
- } else if (val != null && typeof val.valueOf === 'function') {
- val = val.valueOf();
- }
-
- if (op === '$addToSet') {
- val = {$each: val};
- }
-
- ret.push([op, val]);
- }
-
- return ret;
- },
-
- /**
- * Returns the number of pending atomic operations to send to the db for this array.
- *
- * @api private
- * @return {Number}
- * @method hasAtomics
- * @memberOf MongooseArray
- */
-
- hasAtomics: function hasAtomics() {
- if (!(this[arrayAtomicsSymbol] && this[arrayAtomicsSymbol].constructor.name === 'Object')) {
- return 0;
- }
-
- return Object.keys(this[arrayAtomicsSymbol]).length;
- },
-
- /**
- * Internal helper for .map()
- *
- * @api private
- * @return {Number}
- * @method _mapCast
- * @memberOf MongooseArray
- */
- _mapCast: function(val, index) {
- return this._cast(val, this.length + index);
- },
-
- /**
- * Wraps [`Array#push`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/push) with proper change tracking.
- *
- * @param {Object} [args...]
- * @api public
- * @method push
- * @memberOf MongooseArray
- */
-
- push: function() {
- _checkManualPopulation(this, arguments);
- let values = [].map.call(arguments, this._mapCast, this);
- values = this[arraySchemaSymbol].applySetters(values, this[arrayParentSymbol], undefined,
- undefined, { skipDocumentArrayCast: true });
- const ret = [].push.apply(this, values);
-
- this._registerAtomic('$push', values);
- this._markModified();
- return ret;
- },
-
- /**
- * Pushes items to the array non-atomically.
- *
- * ####NOTE:
- *
- * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwritting any changes that happen between when you retrieved the object and when you save it._
- *
- * @param {any} [args...]
- * @api public
- * @method nonAtomicPush
- * @memberOf MongooseArray
- */
-
- nonAtomicPush: function() {
- const values = [].map.call(arguments, this._mapCast, this);
- const ret = [].push.apply(this, values);
- this._registerAtomic('$set', this);
- this._markModified();
- return ret;
- },
-
- /**
- * Pops the array atomically at most one time per document `save()`.
- *
- * #### NOTE:
- *
- * _Calling this mulitple times on an array before saving sends the same command as calling it once._
- * _This update is implemented using the MongoDB [$pop](http://www.mongodb.org/display/DOCS/Updating/#Updating-%24pop) method which enforces this restriction._
- *
- * doc.array = [1,2,3];
- *
- * var popped = doc.array.$pop();
- * console.log(popped); // 3
- * console.log(doc.array); // [1,2]
- *
- * // no affect
- * popped = doc.array.$pop();
- * console.log(doc.array); // [1,2]
- *
- * doc.save(function (err) {
- * if (err) return handleError(err);
- *
- * // we saved, now $pop works again
- * popped = doc.array.$pop();
- * console.log(popped); // 2
- * console.log(doc.array); // [1]
- * })
- *
- * @api public
- * @method $pop
- * @memberOf MongooseArray
- * @instance
- * @see mongodb http://www.mongodb.org/display/DOCS/Updating/#Updating-%24pop
- * @method $pop
- * @memberOf MongooseArray
- */
-
- $pop: function() {
- this._registerAtomic('$pop', 1);
- this._markModified();
-
- // only allow popping once
- if (this._popped) {
- return;
- }
- this._popped = true;
-
- return [].pop.call(this);
- },
-
- /**
- * Wraps [`Array#pop`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/pop) with proper change tracking.
- *
- * ####Note:
- *
- * _marks the entire array as modified which will pass the entire thing to $set potentially overwritting any changes that happen between when you retrieved the object and when you save it._
- *
- * @see MongooseArray#$pop #types_array_MongooseArray-%24pop
- * @api public
- * @method pop
- * @memberOf MongooseArray
- */
-
- pop: function() {
- const ret = [].pop.call(this);
- this._registerAtomic('$set', this);
- this._markModified();
- return ret;
- },
-
- /**
- * Atomically shifts the array at most one time per document `save()`.
- *
- * ####NOTE:
- *
- * _Calling this mulitple times on an array before saving sends the same command as calling it once._
- * _This update is implemented using the MongoDB [$pop](http://www.mongodb.org/display/DOCS/Updating/#Updating-%24pop) method which enforces this restriction._
- *
- * doc.array = [1,2,3];
- *
- * var shifted = doc.array.$shift();
- * console.log(shifted); // 1
- * console.log(doc.array); // [2,3]
- *
- * // no affect
- * shifted = doc.array.$shift();
- * console.log(doc.array); // [2,3]
- *
- * doc.save(function (err) {
- * if (err) return handleError(err);
- *
- * // we saved, now $shift works again
- * shifted = doc.array.$shift();
- * console.log(shifted ); // 2
- * console.log(doc.array); // [3]
- * })
- *
- * @api public
- * @memberOf MongooseArray
- * @instance
- * @method $shift
- * @see mongodb http://www.mongodb.org/display/DOCS/Updating/#Updating-%24pop
- */
-
- $shift: function $shift() {
- this._registerAtomic('$pop', -1);
- this._markModified();
-
- // only allow shifting once
- if (this._shifted) {
- return;
- }
- this._shifted = true;
-
- return [].shift.call(this);
- },
-
- /**
- * Wraps [`Array#shift`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/unshift) with proper change tracking.
- *
- * ####Example:
- *
- * doc.array = [2,3];
- * var res = doc.array.shift();
- * console.log(res) // 2
- * console.log(doc.array) // [3]
- *
- * ####Note:
- *
- * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwritting any changes that happen between when you retrieved the object and when you save it._
- *
- * @api public
- * @method shift
- * @memberOf MongooseArray
- */
-
- shift: function() {
- const ret = [].shift.call(this);
- this._registerAtomic('$set', this);
- this._markModified();
- return ret;
- },
-
- /**
- * Pulls items from the array atomically. Equality is determined by casting
- * the provided value to an embedded document and comparing using
- * [the `Document.equals()` function.](./api.html#document_Document-equals)
- *
- * ####Examples:
- *
- * doc.array.pull(ObjectId)
- * doc.array.pull({ _id: 'someId' })
- * doc.array.pull(36)
- * doc.array.pull('tag 1', 'tag 2')
- *
- * To remove a document from a subdocument array we may pass an object with a matching `_id`.
- *
- * doc.subdocs.push({ _id: 4815162342 })
- * doc.subdocs.pull({ _id: 4815162342 }) // removed
- *
- * Or we may passing the _id directly and let mongoose take care of it.
- *
- * doc.subdocs.push({ _id: 4815162342 })
- * doc.subdocs.pull(4815162342); // works
- *
- * The first pull call will result in a atomic operation on the database, if pull is called repeatedly without saving the document, a $set operation is used on the complete array instead, overwriting possible changes that happened on the database in the meantime.
- *
- * @param {any} [args...]
- * @see mongodb http://www.mongodb.org/display/DOCS/Updating/#Updating-%24pull
- * @api public
- * @method pull
- * @memberOf MongooseArray
- */
-
- pull: function() {
- const values = [].map.call(arguments, this._cast, this);
- const cur = this[arrayParentSymbol].get(this[arrayPathSymbol]);
- let i = cur.length;
- let mem;
-
- while (i--) {
- mem = cur[i];
- if (mem instanceof Document) {
- const some = values.some(function(v) {
- return mem.equals(v);
- });
- if (some) {
- [].splice.call(cur, i, 1);
- }
- } else if (~cur.indexOf.call(values, mem)) {
- [].splice.call(cur, i, 1);
- }
- }
-
- if (values[0] instanceof EmbeddedDocument) {
- this._registerAtomic('$pullDocs', values.map(function(v) {
- return v._id || v;
- }));
- } else {
- this._registerAtomic('$pullAll', values);
- }
-
- this._markModified();
-
- // Might have modified child paths and then pulled, like
- // `doc.children[1].name = 'test';` followed by
- // `doc.children.remove(doc.children[0]);`. In this case we fall back
- // to a `$set` on the whole array. See #3511
- if (cleanModifiedSubpaths(this[arrayParentSymbol], this[arrayPathSymbol]) > 0) {
- this._registerAtomic('$set', this);
- }
-
- return this;
- },
-
- /**
- * Wraps [`Array#splice`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/splice) with proper change tracking and casting.
- *
- * ####Note:
- *
- * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwritting any changes that happen between when you retrieved the object and when you save it._
- *
- * @api public
- * @method splice
- * @memberOf MongooseArray
- */
-
- splice: function splice() {
- let ret;
-
- _checkManualPopulation(this, Array.prototype.slice.call(arguments, 2));
-
- if (arguments.length) {
- const vals = [];
- for (let i = 0; i < arguments.length; ++i) {
- vals[i] = i < 2 ?
- arguments[i] :
- this._cast(arguments[i], arguments[0] + (i - 2));
- }
- ret = [].splice.apply(this, vals);
- this._registerAtomic('$set', this);
- }
-
- return ret;
- },
-
- /**
- * Wraps [`Array#unshift`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/unshift) with proper change tracking.
- *
- * ####Note:
- *
- * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwritting any changes that happen between when you retrieved the object and when you save it._
- *
- * @api public
- * @method unshift
- * @memberOf MongooseArray
- */
-
- unshift: function() {
- _checkManualPopulation(this, arguments);
-
- let values = [].map.call(arguments, this._cast, this);
- values = this[arraySchemaSymbol].applySetters(values, this[arrayParentSymbol]);
- [].unshift.apply(this, values);
- this._registerAtomic('$set', this);
- this._markModified();
- return this.length;
- },
-
- /**
- * Wraps [`Array#sort`](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/sort) with proper change tracking.
- *
- * ####NOTE:
- *
- * _marks the entire array as modified, which if saved, will store it as a `$set` operation, potentially overwritting any changes that happen between when you retrieved the object and when you save it._
- *
- * @api public
- * @method sort
- * @memberOf MongooseArray
- */
-
- sort: function() {
- const ret = [].sort.apply(this, arguments);
- this._registerAtomic('$set', this);
- return ret;
- },
-
- /**
- * Adds values to the array if not already present.
- *
- * ####Example:
- *
- * console.log(doc.array) // [2,3,4]
- * var added = doc.array.addToSet(4,5);
- * console.log(doc.array) // [2,3,4,5]
- * console.log(added) // [5]
- *
- * @param {any} [args...]
- * @return {Array} the values that were added
- * @memberOf MongooseArray
- * @api public
- * @method addToSet
- */
-
- addToSet: function addToSet() {
- _checkManualPopulation(this, arguments);
-
- let values = [].map.call(arguments, this._mapCast, this);
- values = this[arraySchemaSymbol].applySetters(values, this[arrayParentSymbol]);
- const added = [];
- let type = '';
- if (values[0] instanceof EmbeddedDocument) {
- type = 'doc';
- } else if (values[0] instanceof Date) {
- type = 'date';
- }
-
- values.forEach(function(v) {
- let found;
- const val = +v;
- switch (type) {
- case 'doc':
- found = this.some(function(doc) {
- return doc.equals(v);
- });
- break;
- case 'date':
- found = this.some(function(d) {
- return +d === val;
- });
- break;
- default:
- found = ~this.indexOf(v);
- }
-
- if (!found) {
- [].push.call(this, v);
- this._registerAtomic('$addToSet', v);
- this._markModified();
- [].push.call(added, v);
- }
- }, this);
-
- return added;
- },
-
- /**
- * Sets the casted `val` at index `i` and marks the array modified.
- *
- * ####Example:
- *
- * // given documents based on the following
- * var Doc = mongoose.model('Doc', new Schema({ array: [Number] }));
- *
- * var doc = new Doc({ array: [2,3,4] })
- *
- * console.log(doc.array) // [2,3,4]
- *
- * doc.array.set(1,"5");
- * console.log(doc.array); // [2,5,4] // properly cast to number
- * doc.save() // the change is saved
- *
- * // VS not using array#set
- * doc.array[1] = "5";
- * console.log(doc.array); // [2,"5",4] // no casting
- * doc.save() // change is not saved
- *
- * @return {Array} this
- * @api public
- * @method set
- * @memberOf MongooseArray
- */
-
- set: function set(i, val) {
- const value = this._cast(val, i);
- this[i] = value;
- this._markModified(i);
- return this;
- },
-
- /**
- * Returns a native js Array.
- *
- * @param {Object} options
- * @return {Array}
- * @api public
- * @method toObject
- * @memberOf MongooseArray
- */
-
- toObject: function(options) {
- if (options && options.depopulate) {
- options = utils.clone(options);
- options._isNested = true;
- return this.map(function(doc) {
- return doc instanceof Document
- ? doc.toObject(options)
- : doc;
- });
- }
-
- return this.slice();
- },
-
- /**
- * Helper for console.log
- *
- * @api public
- * @method inspect
- * @memberOf MongooseArray
- */
-
- inspect: function() {
- return JSON.stringify(this);
- },
-
- /**
- * Return the index of `obj` or `-1` if not found.
- *
- * @param {Object} obj the item to look for
- * @return {Number}
- * @api public
- * @method indexOf
- * @memberOf MongooseArray
- */
-
- indexOf: function indexOf(obj) {
- if (obj instanceof ObjectId) {
- obj = obj.toString();
- }
- for (let i = 0, len = this.length; i < len; ++i) {
- if (obj == this[i]) {
- return i;
- }
- }
- return -1;
- },
-
- /**
- * Return whether or not the `obj` is included in the array.
- *
- * @param {Object} obj the item to check
- * @return {Boolean}
- * @api public
- * @method includes
- * @memberOf MongooseArray
- */
-
- includes: function includes(obj) {
- return this.indexOf(obj) !== -1;
- }
- };
-
- /**
- * Alias of [pull](#types_array_MongooseArray-pull)
- *
- * @see MongooseArray#pull #types_array_MongooseArray-pull
- * @see mongodb http://www.mongodb.org/display/DOCS/Updating/#Updating-%24pull
- * @api public
- * @memberOf MongooseArray
- * @instance
- * @method remove
- */
-
- MongooseArray.mixin.remove = MongooseArray.mixin.pull;
-
- /*!
- * ignore
- */
-
- function _isAllSubdocs(docs, ref) {
- if (!ref) {
- return false;
- }
- for (let i = 0; i < docs.length; ++i) {
- const arg = docs[i];
- if (arg == null) {
- return false;
- }
- const model = arg.constructor;
- if (!(arg instanceof Document) ||
- (model.modelName !== ref && model.baseModelName !== ref)) {
- return false;
- }
- }
-
- return true;
- }
-
- /*!
- * ignore
- */
-
- function _checkManualPopulation(arr, docs) {
- const ref = arr == null ?
- null :
- get(arr[arraySchemaSymbol], 'caster.options.ref', null);
- if (arr.length === 0 &&
- docs.length > 0) {
- if (_isAllSubdocs(docs, ref)) {
- arr[arrayParentSymbol].populated(arr[arrayPathSymbol], [], { model: docs[0].constructor });
- }
- }
- }
-
- /*!
- * Module exports.
- */
-
- module.exports = exports = MongooseArray;
|