iView学习笔记(三)：表格搜索，过滤及隐藏某列操作
1.后端准备工作
环境说明
python版本：3.6.6
Django版本：1.11.8
数据库：MariaDB 5.5.60新建Django项目，在项目中新建app，配置好数据库
api_test/app01/models.py文件内容
from django.db import modelsfrom .utils.parse_time import parse_datetime_to_stringHOST_STATUS = ((1, "processing"),(2, "error"),
)class HostInfo(models.Model):hostname = models.CharField("主机名", max_length=32)ip = models.CharField("IP地址", max_length=16)status = models.IntegerField("主机状态", choices=HOST_STATUS, default=1)date = models.DateTimeField("主机添加时间", auto_now_add=True)def to_dict(self):return {"hostname": self.hostname,"ip": self.ip,"status": self.status,"when_insert": parse_datetime_to_string(self.date),}app01/utils/parse_time.py文件内容
def parse_datetime_to_string(datetime_str, flag=True):"""把datetime时间转化成时间字符串:param datetime_str: datetime生成的时间，例子：datetime.datetime.now()或者： datetime.datetime.now() - datetime.timedelta(hours=1) # 一个小时之前或者： datetime.datetime.now() - datetime.timedelta(days=1) # 一天之前:return:"""# 将日期转化为字符串 datetime => string# 在数据库中定义字段信息时为：models.DateTimeField(auto_now_add=True)# 查询数据库之后，使用此方法把查询到的时间转换成可用的时间字符串# when_insert__range=(an_hour_time, now_time)# an_hour_time和 now_time 都是 datetime时间字符串，查询两个datetime时间字符串之间的数据if flag:return datetime_str.strftime('%Y-%m-%d %H:%M:%S')else:return datetime_str.strftime('%Y-%m-%d')api_test/urls.py文件内容
from django.conf.urls import url
from django.contrib import admin
from app01 import viewsurlpatterns = [url(r'^admin/', admin.site.urls),url(r'^host/$', views.host_list),
]api_test/app01/views.py文件内容
import jsonfrom django.http import JsonResponse
from django.views.decorators.csrf import csrf_exemptfrom .models import HostInfo@csrf_exempt
def host_list(request):# for i in range(1, 31):# hostname = random.choice(["beijing-aws-0","shanghai-aliyun-0"]) + str(i)# ip = "192.168.100.%d" % i# status = random.randint(1, 2)# host_obj = HostInfo(hostname=hostname, ip=ip, status=status)# host_obj.save()if request.method == "GET":query = request.GET.get("query_string")status = request.GET.get("status")res_list = []host_list = HostInfo.objects.all()if query:host_list = host_list.filter(hostname__icontains=query)if status:host_list = host_list.filter(status=status)for i in host_list:res_list.append(i.to_dict())return JsonResponse({"data": res_list, "result": True}, safe=False)elif request.method == "POST":data = json.loads(request.body)try:HostInfo.objects.create(**data)res = {"status": "success"}except Exception:res = {"status": "fail"}return JsonResponse(res, safe=False)这里前端向后端发送POST请求时，后端没有执行csrftoken验证，前端获取csrftoken,后端进行csrftoken验证不在本文示例之内
2.前端准备工作
首先新建一个项目，然后引入iView插件，配置好router
npm安装iView
npm install iview --save
cnpm install iview --savesrc/main.js文件内容
import Vue from 'vue'
import App from './App.vue'
import router from './router'
import iView from 'iview';
import 'iview/dist/styles/iview.css';Vue.use(iView);Vue.config.productionTip = false
new Vue({router,render: h => h(App)
}).$mount('#app')src/router.js文件内容
import Vue from 'vue'
import Router from 'vue-router'Vue.use(Router)export default new Router({routes: [{path: '/table1',component: () => import('./views/table1.vue')},{path:'/',redirect:'/table1'}]
})src/views/table1.vue文件内容
<template><div style="padding:32px 64px"><h1>在外部进行表格的搜索，过滤，隐藏某列的操作</h1><br><br><Form inline :label-width="80"><FormItem label="主机名称："><Input v-model="form.searchoHostname" placeholder="请输入" style="width:200px;"/></FormItem><FormItem label="使用状态："><Select v-model="form.searchHostStatus" placeholder="请选择" style="width:200px"><Option :value="1">运行中</Option><Option :value="2">异常</Option></Select></FormItem><Button type="primary" @click="getData" style="margin-right:8px;">查询</Button><Button @click="handleReset">重置</Button></Form><CheckboxGroup v-model="showColumns"><Checkbox :label="0">主机名称</Checkbox><Checkbox :label="1">IP 地址</Checkbox><Checkbox :label="2">使用状态</Checkbox><Checkbox :label="3">最后修改时间</Checkbox></CheckboxGroup><Button type="primary" icon="md-add" @click="createDialog=true" style="margin-top:20px;">新建</Button><br><br><Table :data="tableData" :columns="filterColumns" :loading="loading" size="small"></Table><Modal v-model="createDialog" title="新建主机"><Form><FormItem><Input v-model="createHostForm.hostname" placeholder="主机名称"/></FormItem><FormItem><Input v-model="createHostForm.ip" placeholder="IP 地址"/></FormItem><FormItem><Select v-model="createHostForm.status" placeholder="使用状态"><Option :value="1">运行中</Option><Option :value="2">异常</Option></Select></FormItem></Form><Button slot="footer" type="primary" @click="handleCreate">创建</Button></Modal></div>
</template><script>import axios from 'axios';export default {data() {return {tableData: [],loading: false,columns: [{title: "主机名称",key: 'hostname',},{title: "IP地址",key: 'ip',},{title: "等级",key: 'status',render: (h, {row}) => {if (row.status === 1) {return h('Badge', {props: {status: 'processing',text: '运行中'}})} else if (row.status === 2) {return h('Badge', {props: {status: 'error',text: '异常'}})}}},{title: "最后修改时间",key: 'when_insert',}],form: {searchoHostname: '',searchHostStatus: '',},createDialog: false,createHostForm: {hostname: '',ip: '',status: '',},isCreate: false,showColumns: [0, 1, 2, 3],}},computed: {filterColumns() {const columns = [...this.columns];const filterColumns = [];this.showColumns.sort().forEach(item => {filterColumns.push(columns[item])});return filterColumns}},methods: {getData() {if (this.loading) return;this.loading = true;axios.get(`http://127.0.0.1:8000/host/?query_string=${this.form.searchoHostname}&status=${this.form.searchHostStatus}`).then(res => {console.log(res.data)if(res.data.result) {setTimeout(() => {this.tableData = res.data.data;this.loading = false;}, 1000)} else {this.$Message.error('请求失败');}})},handleReset() {this.form.searchoHostname = "";this.form.searchHostStatus = "";this.getData();},handleCreate() {const hostname = this.createHostForm.hostname;const ip = this.createHostForm.ip;const status = this.createHostForm.status;if (hostname === '') {this.$Message.error("请输入主机名称");return;}if (ip === '') {this.$Message.error("请输入IP地址");return;}if (status === '') {this.$Message.error("请选择使用状态");return;}this.isCreate = true;axios.post('http://127.0.0.1:8000/host/', this.createHostForm).then(res => {if(res.data.result) {this.createDialog=falsethis.$Message.success('添加主机成功');} else {this.$Message.error('添加主机失败');}})}},mounted() {this.getData();}}
</script>浏览器打开URL：http://localhost:8080/#/table1，页面渲染如下
取消选中IP地址列，则下面的table中不显示IP地址列
在主机名称框中输入内容进行搜索
在搜索结果中，取消最后修改时间列的显示
对主机状态进行搜索
对主机名称和主机状态进行联合搜索
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