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loopback-datasource-juggler
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Docs and style in lib/list

This commit is contained in:
Anatoliy Chakkaev 2012-11-20 18:37:04 +07:00
parent 26b299eb62
commit c252926f34
1 changed files with 25 additions and 17 deletions
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42
lib/list.js
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@ -1,6 +1,14 @@
module.exports = List; module.exports = List;
/**
* List class provides functionality of nested collection
*
* @param {Array} data - array of items.
* @param {Crap} type - array with some type information? TODO: rework this API.
* @param {AbstractClass} parent - owner of list.
* @constructor
*/
function List(data, type, parent) { function List(data, type, parent) {
var list = this; var list = this;
@ -24,13 +32,13 @@ function List(data, type, parent) {
list.ItemType = type[0] || ListItem; list.ItemType = type[0] || ListItem;
} }
data.forEach(function (item, i) { data.forEach(function(item, i) {
data[i] = new Item(item, list); data[i] = new Item(item, list);
Object.defineProperty(list, data[i].id, { Object.defineProperty(list, data[i].id, {
writable: true, writable: true,
enumerable: false, enumerable: false,
configurable: true, configurable: true,
value: data[i] value: data[i]
}); });
if (list.nextid <= data[i].id) { if (list.nextid <= data[i].id) {
list.nextid = data[i].id + 1; list.nextid = data[i].id + 1;
@ -40,7 +48,7 @@ function List(data, type, parent) {
Object.defineProperty(list, 'length', { Object.defineProperty(list, 'length', {
enumerable: false, enumerable: false,
configurable: true, configurable: true,
get: function () { get: function() {
return list.items.length; return list.items.length;
} }
}); });
@ -97,8 +105,8 @@ if (_) {
'range' 'range'
]; ];
_import.forEach(function (name) { _import.forEach(function(name) {
List.prototype[name] = function () { List.prototype[name] = function() {
var args = [].slice.call(arguments); var args = [].slice.call(arguments);
args.unshift(this.items); args.unshift(this.items);
return _[name].apply(_, args); return _[name].apply(_, args);
@ -106,32 +114,32 @@ if (_) {
}); });
} }
List.prototype.toObject = function () { List.prototype.toObject = function() {
return this.items; return this.items;
}; };
List.prototype.toJSON = function () { List.prototype.toJSON = function() {
return this.items; return this.items;
}; };
List.prototype.toString = function () { List.prototype.toString = function() {
return JSON.stringify(this.items); return JSON.stringify(this.items);
}; };
List.prototype.autoincrement = function () { List.prototype.autoincrement = function() {
return this.nextid++; return this.nextid++;
}; };
List.prototype.push = function (obj) { List.prototype.push = function(obj) {
var item = new ListItem(obj, this); var item = new ListItem(obj, this);
this.items.push(item); this.items.push(item);
return item; return item;
}; };
List.prototype.remove = function (obj) { List.prototype.remove = function(obj) {
var id = obj.id ? obj.id : obj; var id = obj.id ? obj.id : obj;
var found = false; var found = false;
this.items.forEach(function (o, i) { this.items.forEach(function(o, i) {
if (id && o.id == id) { if (id && o.id == id) {
found = i; found = i;
if (o.id !== id) { if (o.id !== id) {
@ -145,17 +153,17 @@ List.prototype.remove = function (obj) {
} }
}; };
List.prototype.forEach = function (cb) { List.prototype.forEach = function(cb) {
this.items.forEach(cb); this.items.forEach(cb);
}; };
List.prototype.sort = function (cb) { List.prototype.sort = function(cb) {
return this.items.sort(cb); return this.items.sort(cb);
}; };
List.prototype.map = function (cb) { List.prototype.map = function(cb) {
if (typeof cb === 'function') return this.items.map(cb); if (typeof cb === 'function') return this.items.map(cb);
if (typeof cb === 'string') return this.items.map(function (el) { if (typeof cb === 'string') return this.items.map(function(el) {
if (typeof el[cb] === 'function') return el[cb](); if (typeof el[cb] === 'function') return el[cb]();
if (el.hasOwnProperty(cb)) return el[cb]; if (el.hasOwnProperty(cb)) return el[cb];
}); });
@ -179,7 +187,7 @@ function ListItem(data, parent) {
} }
} }
this.save = function (c) { this.save = function(c) {
parent.parent.save(c); parent.parent.save(c);
}; };
} }