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/* eslint no-empty: 1 */
/*!
* Module dependencies.
*/
var SchemaType = require('../schematype'),
CastError = SchemaType.CastError,
oid = require('../types/objectid'),
utils = require('../utils'),
Document;
/**
* ObjectId SchemaType constructor.
*
* @param {String} key
* @param {Object} options
* @inherits SchemaType
* @api public
*/
function ObjectId(key, options) {
SchemaType.call(this, key, options, 'ObjectID');
}
/**
* This schema type's name, to defend against minifiers that mangle
* function names.
*
* @api public
*/
ObjectId.schemaName = 'ObjectId';
/*!
* Inherits from SchemaType.
*/
ObjectId.prototype = Object.create(SchemaType.prototype);
ObjectId.prototype.constructor = ObjectId;
/**
* 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 if the given value satisfies a required validator.
*
* @param {Any} value
* @param {Document} doc
* @return {Boolean}
* @api public
*/
ObjectId.prototype.checkRequired = function checkRequired(value, doc) {
if (SchemaType._isRef(this, value, doc, true)) {
return !!value;
}
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 (value === null || value === undefined) {
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 = value;
if (!doc.$__.populated ||
!doc.$__.populated[path] ||
!doc.$__.populated[path].options ||
!doc.$__.populated[path].options.options ||
!doc.$__.populated[path].options.options.lean) {
ret = new pop.options.model(value);
ret.$__.wasPopulated = true;
}
return ret;
}
if (value === null || value === undefined) {
return value;
}
if (value instanceof oid) {
return value;
}
if (value._id) {
if (value._id instanceof oid) {
return value._id;
}
if (value._id.toString instanceof Function) {
try {
return new oid(value._id.toString());
} catch (e) {
}
}
}
if (value.toString instanceof Function) {
try {
return new oid(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);
}
ObjectId.prototype.$conditionalHandlers =
utils.options(SchemaType.prototype.$conditionalHandlers, {
$gt: handleSingle,
$gte: handleSingle,
$lt: handleSingle,
$lte: handleSingle
});
/**
* 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 ' + $conditional + ' with ObjectId.');
}
return handler.call(this, val);
}
return this.cast($conditional);
};
/*!
* ignore
*/
function defaultId() {
return new oid();
}
function resetId(v) {
this.$__._id = null;
return v;
}
/*!
* Module exports.
*/
module.exports = ObjectId;
|
