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/**
* Module dependencies.
*/
var MongooseArray = require('./array')
, driver = global.MONGOOSE_DRIVER_PATH || '../drivers/node-mongodb-native'
, ObjectId = require(driver + '/objectid')
, ObjectIdSchema = require('../schema/objectid');
/**
* Array of embedded documents
* Values always have to be passed to the constructor to initialize, since
* otherwise MongooseArray#push will mark the array as modified to the parent.
*
* @param {Array} values
* @param {String} key path
* @param {Document} parent document
* @api private
* @see http://bit.ly/f6CnZU
*/
function MongooseDocumentArray (values, path, doc) {
var arr = [];
arr.push.apply(arr, values);
arr.__proto__ = MongooseDocumentArray.prototype;
arr._atomics = {};
arr.validators = [];
arr._path = path;
if (doc) {
arr._parent = doc;
arr._schema = doc.schema.path(path);
doc.on('save', arr.notify('save'));
doc.on('isNew', arr.notify('isNew'));
}
return arr;
};
/**
* Inherits from MongooseArray
*/
MongooseDocumentArray.prototype.__proto__ = MongooseArray.prototype;
/**
* Overrides cast
*
* @api private
*/
MongooseDocumentArray.prototype._cast = function (value) {
var doc = new this._schema.caster(value, this);
return doc;
};
/**
* Filters items by id
*
* @param {Object} id
* @api public
*/
MongooseDocumentArray.prototype.id = function (id) {
try {
var casted = ObjectId.toString(ObjectIdSchema.prototype.cast.call({}, id));
} catch (e) {
var casted = null;
}
for (var i = 0, l = this.length; i < l; i++) {
if (!(this[i].get('_id') instanceof ObjectId)) {
if (String(id) == this[i].get('_id').toString())
return this[i];
} else {
if (casted == this[i].get('_id').toString())
return this[i];
}
}
return null;
};
/**
* Returns an Array and converts any Document
* members toObject.
*
* @return {Array}
* @api public
*/
MongooseDocumentArray.prototype.toObject = function () {
return this.map(function (doc) {
return doc && doc.toObject() || null;
});
};
/**
* Helper for console.log
*
* @api public
*/
MongooseDocumentArray.prototype.inspect = function () {
return '[' + this.map(function (doc) {
return doc && doc.inspect() || 'null';
}).join('\n') + ']';
};
/**
* Create fn that notifies all child docs of event.
*
* @param {String} event
* @api private
*/
MongooseDocumentArray.prototype.notify = function notify (event) {
var self = this;
return function notify (val) {
var i = self.length;
while (i--) {
self[i].emit(event, val);
}
}
}
/**
* Module exports.
*/
module.exports = MongooseDocumentArray;
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