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/**
* VirtualType constructor
*
* This is what mongoose uses to define virtual attributes via
* `Schema.prototype.virtual`
*
* @api public
*/
function VirtualType (options) {
this.getters = [];
this.setters = [];
this.options = options || {};
}
/**
* Adds a getter
*
* @param {Function} fn
* @return {VirtualType} this
* @api public
*/
VirtualType.prototype.get = function (fn) {
this.getters.push(fn);
return this;
};
/**
* Adds a setter
*
* @param {Function} fn
* @return {VirtualType} this
* @api public
*/
VirtualType.prototype.set = function (fn) {
this.setters.push(fn);
return this;
};
/**
* Applies getters
*
* @param {Object} value
* @param {Object} scope
* @api public
*/
VirtualType.prototype.applyGetters = function (value, scope) {
var v = value;
for (var l = this.getters.length - 1; l >= 0; l--){
v = this.getters[l].call(scope, v);
}
return v;
};
/**
* Applies setters
*
* @param {Object} value
* @param {Object} scope
* @api public
*/
VirtualType.prototype.applySetters = function (value, scope) {
var v = value;
for (var l = this.setters.length - 1; l >= 0; l--){
this.setters[l].call(scope, v);
}
return v;
};
module.exports = VirtualType;
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