-
-
Notifications
You must be signed in to change notification settings - Fork 3.8k
/
documentarray.js
212 lines (184 loc) · 4.85 KB
/
documentarray.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
/*!
* Module dependencies.
*/
var MongooseArray = require('./array')
, ObjectId = require('./objectid')
, ObjectIdSchema = require('../schema/objectid')
, utils = require('../utils')
, util = require('util')
, Document = require('../document')
/**
* DocumentArray constructor
*
* @param {Array} values
* @param {String} path the path to this array
* @param {Document} doc parent document
* @api private
* @return {MongooseDocumentArray}
* @inherits MongooseArray
* @see http://bit.ly/f6CnZU
*/
function MongooseDocumentArray (values, path, doc) {
var arr = [].concat(values);
// Values always have to be passed to the constructor to initialize, since
// otherwise MongooseArray#push will mark the array as modified to the parent.
utils.decorate( arr, MongooseDocumentArray.mixin );
arr.isMongooseArray = true;
arr.isMongooseDocumentArray = true;
arr._atomics = {};
arr.validators = [];
arr._path = path;
if (doc) {
arr._parent = doc;
arr._schema = doc.schema.path(path);
arr._handlers = {
isNew: arr.notify('isNew'),
save: arr.notify('save')
};
doc.on('save', arr._handlers.save);
doc.on('isNew', arr._handlers.isNew);
}
return arr;
}
/*!
* Inherits from MongooseArray
*/
MongooseDocumentArray.mixin = Object.create( MongooseArray.mixin );
/**
* Overrides MongooseArray#cast
*
* @method _cast
* @api private
*/
MongooseDocumentArray.mixin._cast = function (value, index) {
if (value instanceof this._schema.casterConstructor) {
if (!(value.__parent && value.__parentArray)) {
// value may have been created using array.create()
value.__parent = this._parent;
value.__parentArray = this;
}
value.__index = index;
return value;
}
// handle cast('string') or cast(ObjectId) etc.
// 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 };
}
return new this._schema.casterConstructor(value, this, undefined, undefined, index);
};
/**
* Searches array items for the first document with a matching _id.
*
* ####Example:
*
* var embeddedDoc = m.array.id(some_id);
*
* @return {EmbeddedDocument|null} the subdocument or null if not found.
* @param {ObjectId|String|Number|Buffer} id
* @TODO cast to the _id based on schema for proper comparison
* @method id
* @api public
*/
MongooseDocumentArray.mixin.id = function (id) {
var casted
, sid
, _id
try {
var casted_ = ObjectIdSchema.prototype.cast.call({}, id);
if (casted_) casted = String(casted_);
} catch (e) {
casted = null;
}
for (var i = 0, l = this.length; i < l; i++) {
_id = this[i].get('_id');
if (_id instanceof Document) {
sid || (sid = String(id));
if (sid == _id._id) return this[i];
} else if (!(_id instanceof ObjectId)) {
sid || (sid = String(id));
if (sid == _id) return this[i];
} else if (casted == _id) {
return this[i];
}
}
return null;
};
/**
* Returns a native js Array of plain js objects
*
* ####NOTE:
*
* _Each sub-document is converted to a plain object by calling its `#toObject` method._
*
* @param {Object} [options] optional options to pass to each documents `toObject` method call during conversion
* @return {Array}
* @method toObject
* @api public
*/
MongooseDocumentArray.mixin.toObject = function (options) {
return this.map(function (doc) {
return doc && doc.toObject(options) || null;
});
};
/**
* Helper for console.log
*
* @method inspect
* @api public
*/
MongooseDocumentArray.mixin.inspect = function () {
return '[' + Array.prototype.map.call(this, function (doc) {
if (doc) {
return doc.inspect
? doc.inspect()
: util.inspect(doc)
}
return 'null'
}).join('\n') + ']';
};
/**
* Creates a subdocument casted to this schema.
*
* This is the same subdocument constructor used for casting.
*
* @param {Object} obj the value to cast to this arrays SubDocument schema
* @method create
* @api public
*/
MongooseDocumentArray.mixin.create = function (obj) {
return new this._schema.casterConstructor(obj);
}
/**
* Creates a fn that notifies all child docs of `event`.
*
* @param {String} event
* @return {Function}
* @method notify
* @api private
*/
MongooseDocumentArray.mixin.notify = function notify (event) {
var self = this;
return function notify (val) {
var i = self.length;
while (i--) {
if (!self[i]) continue;
switch(event) {
// only swap for save event for now, we may change this to all event types later
case 'save':
val = self[i];
break;
default:
// NO-OP
break;
}
self[i].emit(event, val);
}
}
}
/*!
* Module exports.
*/
module.exports = MongooseDocumentArray;