105 lines
2.2 KiB
JavaScript
105 lines
2.2 KiB
JavaScript
// Copyright IBM Corp. 2012,2016. All Rights Reserved.
|
|
// Node module: loopback-datasource-juggler
|
|
// This file is licensed under the MIT License.
|
|
// License text available at https://opensource.org/licenses/MIT
|
|
|
|
var g = require('strong-globalize')();
|
|
var util = require('util');
|
|
var Any = require('./types').Types.Any;
|
|
|
|
module.exports = List;
|
|
|
|
function List(items, itemType, parent) {
|
|
var list = this;
|
|
if (!(list instanceof List)) {
|
|
return new List(items, itemType, parent);
|
|
}
|
|
|
|
if (typeof items === 'string') {
|
|
try {
|
|
items = JSON.parse(items);
|
|
} catch (e) {
|
|
var err = new Error(g.f('could not create List from JSON string: %j', items));
|
|
err.statusCode = 400;
|
|
throw err;
|
|
}
|
|
}
|
|
|
|
var arr = [];
|
|
arr.__proto__ = List.prototype;
|
|
|
|
items = items || [];
|
|
if (!Array.isArray(items)) {
|
|
var err = new Error(g.f('Items must be an array: %j', items));
|
|
err.statusCode = 400;
|
|
throw err;
|
|
}
|
|
|
|
if (!itemType) {
|
|
itemType = items[0] && items[0].constructor;
|
|
}
|
|
|
|
if (Array.isArray(itemType)) {
|
|
itemType = itemType[0];
|
|
}
|
|
|
|
if (itemType === Array) {
|
|
itemType = Any;
|
|
}
|
|
|
|
Object.defineProperty(arr, 'itemType', {
|
|
writable: true,
|
|
enumerable: false,
|
|
value: itemType,
|
|
});
|
|
|
|
if (parent) {
|
|
Object.defineProperty(arr, 'parent', {
|
|
writable: true,
|
|
enumerable: false,
|
|
value: parent,
|
|
});
|
|
}
|
|
|
|
items.forEach(function(item, i) {
|
|
if (itemType && !(item instanceof itemType)) {
|
|
arr[i] = itemType(item);
|
|
} else {
|
|
arr[i] = item;
|
|
}
|
|
});
|
|
|
|
return arr;
|
|
}
|
|
|
|
util.inherits(List, Array);
|
|
|
|
var _push = List.prototype.push;
|
|
|
|
List.prototype.push = function(obj) {
|
|
var item = this.itemType && (obj instanceof this.itemType) ? obj : this.itemType(obj);
|
|
_push.call(this, item);
|
|
return item;
|
|
};
|
|
|
|
List.prototype.toObject = function(onlySchema, removeHidden, removeProtected) {
|
|
var items = [];
|
|
this.forEach(function(item) {
|
|
if (item && typeof item === 'object' && item.toObject) {
|
|
items.push(item.toObject(onlySchema, removeHidden, removeProtected));
|
|
} else {
|
|
items.push(item);
|
|
}
|
|
});
|
|
return items;
|
|
};
|
|
|
|
List.prototype.toJSON = function() {
|
|
return this.toObject(true);
|
|
};
|
|
|
|
List.prototype.toString = function() {
|
|
return JSON.stringify(this.toJSON());
|
|
};
|
|
|