目标：创建班级管理模块（班级和学院、学校关联起来）
一、后台三步骤：
1、打开projectName文件，在models目录下创建classs.js文件，接着文件操作：
const mongoose = require('mongoose')
const Schema= mongoose.Schema
const feld={
name: String,
//人物标签
level:String,
renshu: Number,
school : { type: Schema.Types.ObjectId, ref: 'School' },
academy : { type: Schema.Types.ObjectId, ref: 'Academy' }
}
//自动添加更新时间创建时间:
let personSchema = new mongoose.Schema(feld, {timestamps: {createdAt: 'created', updatedAt: 'updated'}})
module.exports= mongoose.model('Classs',personSchema)
2、找到projectName下的routes目录，创建classs.js文件：
const router = require('koa-router')()
let Model = require("../db/models/classs");
router.prefix('/classs')
router.get('/', function (ctx, next) {
ctx.body = 'this is a users response!'
})
router.post('/add', async function (ctx, next) {
console.log(ctx.request.body)
let model = new Model(ctx.request.body);
model = await model.save();
console.log('user',model)
ctx.body = model
})
router.post('/find', async function (ctx, next) {
let models = await Model.
find({}).populate('academy').populate('school')
ctx.body = models
})
router.post('/get', async function (ctx, next) {
// let users = await User.
// find({})
console.log(ctx.request.body)
let model = await Model.find(ctx.request.body)
console.log(model)
ctx.body = model
})
router.post('/update', async function (ctx, next) {
console.log(ctx.request.body)
let pbj = await Model.update({ _id: ctx.request.body._id }, ctx.request.body);
ctx.body = pbj
})
router.post('/delete', async function (ctx, next) {
console.log(ctx.request.body)
await Model.remove({ _id: ctx.request.body._id });
ctx.body = 'shibai '
})
module.exports = router
3.在app.js中挂载路由：
const classs= require('./routes/classs')
app.use(classs.routes(), classs.allowedMethods())
二、前台三步骤：
打开vue-admin-template-master文件，在src/views目录下创建一个classs模块，并在academy目录下创建vue文件。
1.editor.vue为编辑文件，用于创建班级记录；
班级添加.png
<template>
<div class="dashboard-container">
<el-form ref="form" :model="form" label-width="80px">
<el-form-item label="所属学校">
<el-select v-model="form.school" placeholder="请选择" @change="schoolChange">
<el-option
v-for="item in schools"
:key="item._id"
:label="item.name"
:value="item._id">
</el-option>
</el-select>
</el-form-item>
<!-- 编辑框：学院选择列表-->
<el-form-item label="所属学院">
<el-select v-model="form.academy" placeholder="请选择">
<el-option
v-for="item in academys"
:key="item._id"
:label="item.name"
:value="item._id">
</el-option>
</el-select>
</el-form-item>
<el-form-item label="班级名称">
<el-input v-model="form.name"></el-input>
</el-form-item>
<el-form-item label="专业">
<el-input v-model="form.level"></el-input>
</el-form-item>
<el-form-item label="人数">
<el-input v-model="form.renshu"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="onSubmit">立即创建</el-button>
<el-button>取消</el-button>
</el-form-item>
</el-form>
</div>
</template>
<script>
import { mapGetters } from 'vuex'
export default {
name: 'classs',
computed: {
...mapGetters([
'name'
])
},
data(){
return{
schools:[],
academys:[],
//列表内容
options: [
],
apiModel:'classs',
form:{}
}
},
methods:{
onSubmit(){
if(this.form._id){
this.$http.post(`/api/${this.apiModel}/update`,this.form).then(res => {
console.log('bar:', res)
this.$router.push({path:this.apiModel})
this.form={}
})
}else
{
this.$http.post('/api/'+this.apiModel+'/add',this.form).then(res => {
console.log('bar:', res)
this.$router.push({path:this.apiModel})
this.form={}
})
}
},
schoolChange(val1){
//显示学院选择栏目
this.$http.post('/api/academy/get',{school:val1}).then(res => {
if(res&&res.length>0){
this.academys = res
console.log('res:', res)
}
})
}
},
mounted() {
if(this.$route.query._id){
this.$http.post('/api/'+this.apiModel+'/get',{_id:this.$route.query._id}).then(res => {
if(res&&res.length>0){
this.form = res[0]
this.schoolChange(this.form.school)
}
})
}
//显示学校选择栏目
this.$http.post('/api/school/find').then(res => {
if(res&&res.length>0){
this.schools = res
console.log('res:', res)
}
})
}
}
</script>
<style lang="scss" scoped>
.dashboard {
&-container {
margin: 30px;
}
&-text {
font-size: 30px;
line-height: 46px;
}
}
</style>
2.index.vue为目录文件，用于显示结果；
班级管理.png
<template>
<div class="dashboard-container">
<el-table
:data="users"
style="width: 100%"
:row-class-name="tableRowClassName">
<el-table-column
prop="name"
label="班级名称"
width="180">
</el-table-column>
<el-table-column
prop="level"
label="专业"
width="180">
</el-table-column>
<el-table-column
prop="renshu"
label="人数">
</el-table-column>
<!-- 列表添加项目
-->
<el-table-column
prop="school"
label="学校名称"
width="180">
<template slot-scope="scope" >
<span class="" v-if="scope.row.school">
<el-tag
:type="scope.row.school.name === '深圳信息职业技术学院' ? 'primary' : 'success'"
disable-transitions>{{scope.row.school.name}}</el-tag>
</span>
</template>
</el-table-column>
<el-table-column
prop="academy"
label="学院名称"
width="180">
<template slot-scope="scope" >
<span class="" v-if="scope.row.academy">
<el-tag
:type="scope.row.academy.name === '软件学院' ? 'primary' : 'success'"
disable-transitions>{{scope.row.academy.name}}</el-tag>
</span>
</template>
</el-table-column>
<el-table-column label="操作">
<template slot-scope="scope">
<el-button
size="mini"
@click="handleEdit(scope.$index, scope.row)">编辑
</el-button>
<el-button
size="mini"
type="danger"
@click="handleDelete(scope.$index, scope.row)">删除
</el-button>
</template>
</el-table-column>
</el-table>
</div>
</template>
<script>
import { mapGetters } from 'vuex'
export default {
name: 'classs',
computed: {
...mapGetters([
'name'
])
},
data() {
return {
apiModel:'classs',
users: {}
}
},
methods: {
onSubmit() {
console.log(123434)
},
handleEdit(index, item) {
this.$router.push({ path: '/'+this.apiModel+'/editor', query: {_id:item._id} })
},
handleDelete(index, item) {
this.$http.post('/api/'+this.apiModel+'/delete', item).then(res => {
console.log('res:', res)
this.findUser()
})
},
findUser(){
this.$http.post('/api/'+this.apiModel+'/find', this.user).then(res => {
console.log('res:', res)
this.users = res
})
}
},
mounted() {
this.findUser()
}
}
</script>
<style lang="scss" scoped>
.dashboard {
&-container {
margin: 30px;
}
&-text {
font-size: 30px;
line-height: 46px;
}
}
</style>
3.在index.js中添加路由：
{
path: '/classs',
component: Layout,
meta: { title: '班级管理', icon: 'example' },
redirect: '/classs',
children: [{
path: 'classs',
name: 'classs',
component: () => import('@/views/classs'),
meta: { title: '班级管理', icon: 'classs' }
},
{
path: 'editor',
name: 'editor',
component: () => import('@/views/classs/editor'),
meta: { title: '添加班级', icon: 'classs' }
}]
},
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