1
在对集合执行提取时,加载“和”模型的子模型属性的适当方法是什么?&符与子代获取子/集合
我有一个任务目标:
{
"id": 1
"projectId": 2 // child entity id
"name": "This task for project 1"
}
而且我已经创建了一个与符号模式:
var AmpModel = require('ampersand-model');
var Project = require('../project');
module.exports = AmpModel.extend({
props: {
id: ['number'],
projectId: ['number'],
name: ['string']
},
children: {
project: Project
}
});
和收集:
var AmpCollection = require('ampersand-rest-collection');
var Task = require('./task');
module.exports = AmpCollection.extend({
model: Task,
url: '/api/task'
});
我的API是非常简单的,因为该应用程序只在内存中存储输入:
var _ = require('lodash');
var store = require('../data'); // this is a file with some init data
function get(id) {
return _.findWhere(store.tasks.data, { id: parseInt(id + '', 10) });
}
exports.list = function (req, res) {
res.send(store.tasks.data);
};
exports.add = function (req, res) {
var item = req.body;
item.id = store.tasks.id++;
store.tasks.data.push(item);
res.status(201).send(item);
};
exports.get = function (req, res) {
var found = get(req.params.id);
res.status(found ? 200 : 404);
res.send(found);
};
在实体框架中我将在检索时包含子实体。 projectId
字段将映射到projects
表,框架将为我处理它。