配置CRUD通用接口

module.exports = app => {
  const router = require('express').Router({
    mergeParams: true
  })

  // 增
  router.post('/', async (req, res) => {
    await req.Model.create(req.body)
    res.send({
      success: true
    })
  })
  // 根据ID删除
  router.delete('/:id', async (req, res) => {
    await req.Model.findByIdAndDelete(req.params.id)
    res.send({
      success: true
    })
  })
  // 根据ID修改
  router.put('/:id', async (req, res) => {
    await req.Model.findByIdAndUpdate(req.params.id, req.body)
    res.send({
      success: true
    })
  })
  // 查
  router.get('/', async (req, res) => {
    const queryOptions = {}
    if (req.Model.modelName === 'Category') {
      queryOptions.populate = 'parent'
    }37     const data = await req.Model.find().setOptions(queryOptions)
    res.send(data)
  })
  // 根据ID查询
  router.get('/:id', async (req, res) => {
    const data = await req.Model.findById(req.params.id)
    res.send(data)
  })

  app.use('/admin/api/rest/:resource', async (req, res, next) => {
    const classify = require('inflection').classify // 小写复数形式转换为首字母大写单数形式的类名
    req.Model = require(`../models/${classify(req.params.resource)}`)
    next()
  }, router)
}