/
array.js
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/
array.js
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/*!
* Module dependencies.
*/
var SchemaType = require('../schematype')
, CastError = SchemaType.CastError
, NumberSchema = require('./number')
, Types = {
Boolean: require('./boolean')
, Date: require('./date')
, Number: require('./number')
, String: require('./string')
, ObjectId: require('./objectid')
, Buffer: require('./buffer')
}
, MongooseArray = require('../types').Array
, EmbeddedDoc = require('../types').Embedded
, Mixed = require('./mixed')
, Query = require('../query')
, utils = require('../utils')
, isMongooseObject = utils.isMongooseObject
/**
* Array SchemaType constructor
*
* @param {String} key
* @param {SchemaType} cast
* @param {Object} options
* @inherits SchemaType
* @api private
*/
function SchemaArray (key, cast, options) {
if (cast) {
var castOptions = {};
if ('Object' === cast.constructor.name) {
if (cast.type) {
// support { type: Woot }
castOptions = utils.clone(cast); // do not alter user arguments
delete castOptions.type;
cast = cast.type;
} else {
cast = Mixed;
}
}
// support { type: 'String' }
var name = 'string' == typeof cast
? cast
: cast.name;
var caster = name in Types
? Types[name]
: cast;
this.casterConstructor = caster;
this.caster = new caster(null, castOptions);
if (!(this.caster instanceof EmbeddedDoc)) {
this.caster.path = key;
}
}
SchemaType.call(this, key, options);
var self = this
, defaultArr
, fn;
if (this.defaultValue) {
defaultArr = this.defaultValue;
fn = 'function' == typeof defaultArr;
}
this.default(function(){
var arr = fn ? defaultArr() : defaultArr || [];
return new MongooseArray(arr, self.path, this);
});
};
/*!
* Inherits from SchemaType.
*/
SchemaArray.prototype.__proto__ = SchemaType.prototype;
/**
* Check required
*
* @param {Array} value
* @api private
*/
SchemaArray.prototype.checkRequired = function (value) {
return !!(value && value.length);
};
/**
* Overrides the getters application for the population special-case
*
* @param {Object} value
* @param {Object} scope
* @api private
*/
SchemaArray.prototype.applyGetters = function (value, scope) {
if (this.caster.options && this.caster.options.ref) {
// means the object id was populated
return value;
}
return SchemaType.prototype.applyGetters.call(this, value, scope);
};
/**
* Casts values for set().
*
* @param {Object} value
* @param {Document} doc document that triggers the casting
* @param {Boolean} init whether this is an initialization cast
* @api private
*/
SchemaArray.prototype.cast = function (value, doc, init) {
if (Array.isArray(value)) {
if (!value.length && doc) {
var indexes = doc.schema.indexedPaths();
for (var i = 0, l = indexes.length; i < l; ++i) {
var pathIndex = indexes[i][0][this.path];
if ('2dsphere' === pathIndex || '2d' === pathIndex) {
return;
}
}
}
if (!(value instanceof MongooseArray)) {
value = new MongooseArray(value, this.path, doc);
}
if (this.caster) {
try {
for (var i = 0, l = value.length; i < l; i++) {
value[i] = this.caster.cast(value[i], doc, init);
}
} catch (e) {
// rethrow
throw new CastError(e.type, value, this.path);
}
}
return value;
} else {
return this.cast([value], doc, init);
}
};
/**
* Casts values for queries.
*
* @param {String} $conditional
* @param {any} [value]
* @api private
*/
SchemaArray.prototype.castForQuery = function ($conditional, value) {
var handler
, val;
if (arguments.length === 2) {
handler = this.$conditionalHandlers[$conditional];
if (!handler) {
throw new Error("Can't use " + $conditional + " with Array.");
}
val = handler.call(this, value);
} else {
val = $conditional;
var proto = this.casterConstructor.prototype;
var method = proto.castForQuery || proto.cast;
var caster = this.caster;
if (Array.isArray(val)) {
val = val.map(function (v) {
if (method) v = method.call(caster, v);
return isMongooseObject(v)
? v.toObject()
: v;
});
} else if (method) {
val = method.call(caster, val);
}
}
return val && isMongooseObject(val)
? val.toObject()
: val;
};
/*!
* @ignore
*
* $atomic cast helpers
*/
function castToNumber (val) {
return Types.Number.prototype.cast.call(this, val);
}
function castArraysOfNumbers (arr, self) {
self || (self = this);
arr.forEach(function (v, i) {
if (Array.isArray(v)) {
castArraysOfNumbers(v, self);
} else {
arr[i] = castToNumber.call(self, v);
}
});
}
function cast$near (val) {
if (Array.isArray(val)) {
castArraysOfNumbers(val, this);
return val;
}
if (val && val.$geometry) {
return cast$geometry(val, this);
}
return SchemaArray.prototype.castForQuery.call(this, val);
}
function cast$geometry (val, self) {
switch (val.$geometry.type) {
case 'Polygon':
case 'LineString':
case 'Point':
castArraysOfNumbers(val.$geometry.coordinates, self);
break;
default:
// ignore unknowns
break;
}
if (val.$maxDistance) {
val.$maxDistance = castToNumber.call(self, val.$maxDistance);
}
return val;
}
function cast$within (val) {
var self = this;
if (val.$maxDistance) {
val.$maxDistance = castToNumber.call(self, val.$maxDistance);
}
if (val.$box || val.$polygon) {
var type = val.$box ? '$box' : '$polygon';
val[type].forEach(function (arr) {
if (!Array.isArray(arr)) {
var msg = 'Invalid $within $box argument. '
+ 'Expected an array, received ' + arr;
throw new TypeError(msg);
}
arr.forEach(function (v, i) {
arr[i] = castToNumber.call(this, v);
});
})
} else if (val.$center || val.$centerSphere) {
var type = val.$center ? '$center' : '$centerSphere';
val[type].forEach(function (item, i) {
if (Array.isArray(item)) {
item.forEach(function (v, j) {
item[j] = castToNumber.call(this, v);
});
} else {
val[type][i] = castToNumber.call(this, item);
}
})
} else if (val.$geometry) {
cast$geometry(val, this);
}
return val;
}
function cast$all (val) {
if (!Array.isArray(val)) {
val = [val];
}
val = val.map(function (v) {
if (utils.isObject(v)) {
var o = {};
o[this.path] = v;
var query = new Query(o);
query.cast(this.casterConstructor);
return query._conditions[this.path];
}
return v;
}, this);
return this.castForQuery(val);
}
function cast$elemMatch (val) {
if (val.$in) {
val.$in = this.castForQuery('$in', val.$in);
return val;
}
var query = new Query(val);
query.cast(this.casterConstructor);
return query._conditions;
}
function cast$geoIntersects (val) {
var geo = val.$geometry;
if (!geo) return;
cast$geometry(val, this);
return val;
}
var handle = SchemaArray.prototype.$conditionalHandlers = {};
handle.$all = cast$all;
handle.$options = String;
handle.$elemMatch = cast$elemMatch;
handle.$geoIntersects = cast$geoIntersects;
handle.$or = handle.$and = function(val) {
if (!Array.isArray(val)) {
throw new TypeError('conditional $or/$and require array');
}
var ret = [];
for (var i = 0; i < val.length; ++i) {
var query = new Query(val[i]);
query.cast(this.casterConstructor);
ret.push(query._conditions);
}
return ret;
};
handle.$near =
handle.$nearSphere = cast$near;
handle.$within =
handle.$geoWithin = cast$within;
handle.$size =
handle.$maxDistance = castToNumber;
handle.$regex =
handle.$ne =
handle.$in =
handle.$nin =
handle.$gt =
handle.$gte =
handle.$lt =
handle.$lte = SchemaArray.prototype.castForQuery;
/*!
* Module exports.
*/
module.exports = SchemaArray;