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/*!
* Module dependencies.
*/
var handleBitwiseOperator = require('./operators/bitwise');
var utils = require('../utils');
var MongooseBuffer = require('../types').Buffer;
var SchemaType = require('../schematype');
var Binary = MongooseBuffer.Binary;
var CastError = SchemaType.CastError;
var Document;
/**
* Buffer SchemaType constructor
*
* @param {String} key
* @param {Object} options
* @inherits SchemaType
* @api public
*/
function SchemaBuffer(key, options) {
SchemaType.call(this, key, options, 'Buffer');
}
/**
* This schema type's name, to defend against minifiers that mangle
* function names.
*
* @api public
*/
SchemaBuffer.schemaName = 'Buffer';
/*!
* Inherits from SchemaType.
*/
SchemaBuffer.prototype = Object.create(SchemaType.prototype);
SchemaBuffer.prototype.constructor = SchemaBuffer;
/**
* Check if the given value satisfies a required validator. To satisfy a
* required validator, a buffer must not be null or undefined and have
* non-zero length.
*
* @param {Any} value
* @param {Document} doc
* @return {Boolean}
* @api public
*/
SchemaBuffer.prototype.checkRequired = function(value, doc) {
if (SchemaType._isRef(this, value, doc, true)) {
return !!value;
}
return !!(value && value.length);
};
/**
* Casts contents
*
* @param {Object} value
* @param {Document} doc document that triggers the casting
* @param {Boolean} init
* @api private
*/
SchemaBuffer.prototype.cast = function(value, doc, init) {
var ret;
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.$__.wasPopulated = true;
return value;
}
// setting a populated path
if (Buffer.isBuffer(value)) {
return value;
} else if (!utils.isObject(value)) {
throw new CastError('buffer', value, this.path);
}
// Handle the case where user directly sets a populated
// path to a plain object; cast to the Model used in
// the population query.
var path = doc.$__fullPath(this.path);
var owner = doc.ownerDocument ? doc.ownerDocument() : doc;
var pop = owner.populated(path, true);
ret = new pop.options.model(value);
ret.$__.wasPopulated = true;
return ret;
}
// documents
if (value && value._id) {
value = value._id;
}
if (value && value.isMongooseBuffer) {
return value;
}
if (Buffer.isBuffer(value)) {
if (!value || !value.isMongooseBuffer) {
value = new MongooseBuffer(value, [this.path, doc]);
}
return value;
} else if (value instanceof Binary) {
ret = new MongooseBuffer(value.value(true), [this.path, doc]);
if (typeof value.sub_type !== 'number') {
throw new CastError('buffer', value, this.path);
}
ret._subtype = value.sub_type;
return ret;
}
if (value === null) {
return value;
}
var type = typeof value;
if (type === 'string' || type === 'number' || Array.isArray(value)) {
if (type === 'number') {
value = [value];
}
ret = new MongooseBuffer(value, [this.path, doc]);
return ret;
}
throw new CastError('buffer', value, this.path);
};
/*!
* ignore
*/
function handleSingle(val) {
return this.castForQuery(val);
}
SchemaBuffer.prototype.$conditionalHandlers =
utils.options(SchemaType.prototype.$conditionalHandlers, {
$bitsAllClear: handleBitwiseOperator,
$bitsAnyClear: handleBitwiseOperator,
$bitsAllSet: handleBitwiseOperator,
$bitsAnySet: handleBitwiseOperator,
$gt: handleSingle,
$gte: handleSingle,
$lt: handleSingle,
$lte: handleSingle
});
/**
* Casts contents for queries.
*
* @param {String} $conditional
* @param {any} [value]
* @api private
*/
SchemaBuffer.prototype.castForQuery = function($conditional, val) {
var handler;
if (arguments.length === 2) {
handler = this.$conditionalHandlers[$conditional];
if (!handler) {
throw new Error('Can\'t use ' + $conditional + ' with Buffer.');
}
return handler.call(this, val);
}
val = $conditional;
return this.cast(val).toObject({ transform: false });
};
/*!
* Module exports.
*/
module.exports = SchemaBuffer;
|
