objectid.js
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/*!
* Module dependencies.
*/
var SchemaType = require('../schematype')
, CastError = SchemaType.CastError
, driver = global.MONGOOSE_DRIVER_PATH || './../drivers/node-mongodb-native'
, oid = require('../types/objectid')
, utils = require('../utils')
, Document
/**
* ObjectId SchemaType constructor.
*
* @param {String} key
* @param {Object} options
* @inherits SchemaType
* @api private
*/
function ObjectId (key, options) {
SchemaType.call(this, key, options, 'ObjectID');
};
/*!
* Inherits from SchemaType.
*/
ObjectId.prototype.__proto__ = SchemaType.prototype;
/**
* Adds an auto-generated ObjectId default if turnOn is true.
* @param {Boolean} turnOn auto generated ObjectId defaults
* @api public
* @return {SchemaType} this
*/
ObjectId.prototype.auto = function (turnOn) {
if (turnOn) {
this.default(defaultId);
this.set(resetId)
}
return this;
};
/**
* Check required
*
* @api private
*/
ObjectId.prototype.checkRequired = function checkRequired (value, doc) {
if (SchemaType._isRef(this, value, doc, true)) {
return null != value;
} else {
return value instanceof oid;
}
};
/**
* Casts to ObjectId
*
* @param {Object} value
* @param {Object} doc
* @param {Boolean} init whether this is an initialization cast
* @api private
*/
ObjectId.prototype.cast = function (value, doc, init) {
if (SchemaType._isRef(this, value, doc, init)) {
// wait! we may need to cast this to a document
if (null == value) {
return value;
}
// lazy load
Document || (Document = require('./../document'));
if (value instanceof Document) {
value.$__.wasPopulated = true;
return value;
}
// setting a populated path
if (value instanceof oid) {
return value;
} else if (Buffer.isBuffer(value) || !utils.isObject(value)) {
throw new CastError('ObjectId', value, this.path);
}
// Handle the case where user directly sets a populated
// path to a plain object; cast to the Model used in
// the population query.
var path = doc.$__fullPath(this.path);
var owner = doc.ownerDocument ? doc.ownerDocument() : doc;
var pop = owner.populated(path, true);
var ret = new pop.options.model(value);
ret.$__.wasPopulated = true;
return ret;
}
if (value === null) return value;
if (value instanceof oid)
return value;
if (value._id && value._id instanceof oid)
return value._id;
if (value.toString) {
try {
return oid.fromString(value.toString());
} catch (err) {
throw new CastError('ObjectId', value, this.path);
}
}
throw new CastError('ObjectId', value, this.path);
};
/*!
* ignore
*/
function handleSingle (val) {
return this.cast(val);
}
function handleArray (val) {
var self = this;
return val.map(function (m) {
return self.cast(m);
});
}
ObjectId.prototype.$conditionalHandlers = {
'$ne': handleSingle
, '$in': handleArray
, '$nin': handleArray
, '$gt': handleSingle
, '$lt': handleSingle
, '$gte': handleSingle
, '$lte': handleSingle
, '$all': handleArray
};
/**
* Casts contents for queries.
*
* @param {String} $conditional
* @param {any} [val]
* @api private
*/
ObjectId.prototype.castForQuery = function ($conditional, val) {
var handler;
if (arguments.length === 2) {
handler = this.$conditionalHandlers[$conditional];
if (!handler)
throw new Error("Can't use " + $conditional + " with ObjectId.");
return handler.call(this, val);
} else {
return this.cast($conditional);
}
};
/*!
* ignore
*/
function defaultId () {
return new oid();
};
function resetId (v) {
this.$__._id = null;
return v;
}
/*!
* Module exports.
*/
module.exports = ObjectId;