SPA項目開發之CRUD+表單驗證

時間 2019-11-29

原文原文鏈接

表單驗證

Form組件提供了表單驗證的功能，只須要經過 rules 屬性傳入約定的驗證規則，
並將Form-Item的prop屬性設置爲需校驗的字段名便可前端

<el-form label-width="120px" :model="editForm" :rules="rules" ref="editForm">
        <el-form-item label="文章標題" prop="title">
          <el-input size="small" v-model="editForm.title" auto-complete="off" placeholder="請輸入文章標題"></el-input>
        </el-form-item>
        <el-form-item label="文章內容" prop="body">
          <el-input size="small" v-model="editForm.body" auto-complete="off" placeholder="請輸入文章內容"></el-input>
        </el-form-item>
      </el-form>

今天就寫了一個並非很難的正則能夠去element官網查看更多（https://element.eleme.cn/#/zh-CN/component/form）vue

rules: {
          title: [{
              required: true,
              message: '請輸入文章標題',
              trigger: 'blur'
            }],
             body: [{
                required: true,
                message: '請輸入文章內容',
                trigger: 'blur'
              },
              {
                min: 5,
                max: 10,
                message: '長度在 5 到 10 個字符',
                trigger: 'blur'
              }
          ],
        }

有多個表單，怎麼在提交進行區分？

咱們在rules這裏寫了對錶單的驗證規則，可是咱們如何在methods裏進行指定的表單進行認證，
因此咱們一開始就在el-form裏寫了 ref="ruleForm"，咱們在methods裏就能夠用ios
清空表單驗證信息

this.$refs[formName].resetFields();

數據交互（與後臺鏈接而且調用相關方法）數據庫

今天的都寫在一個頁面只是分出來單獨解釋一下是幹嗎用的axios

完整代碼（前端）

<template>
  <div>
    <!-- 搜索篩選-->
    <el-form :inline="true" :model="formInline" class="user-search">
      <el-form-item label="搜索:">
        <el-input size="small" v-model="formInline.title" placeholder="輸入文章標題"></el-input>
      </el-form-item>
      <el-form-item>
        <el-button size="small" type="primary" icon="el-icon-search" @click="search">搜索</el-button>
        <el-button size="small" type="primary" icon="el-icon-plus" @click="add">添加</el-button>
      </el-form-item>
    </el-form>
    <!-- 列表-->
    <el-table size="small" :data="listData" style="width: 100%;" border max-height="450" element-loading-text="拼命加載中">
      <el-table-column sortable prop="id" label="ID" width="300"></el-table-column>
      <el-table-column sortable prop="title" label="文章標題" width="300"></el-table-column>
      <el-table-column sortable prop="body" label="文章內容" width="300"></el-table-column>
    <el-table-column align="center" label="操做" min-width="300">
      <template slot-scope="scope">
        <el-button size="mini" @click="edit(scope.$index, scope.row)">編輯</el-button>
        <el-button size="mini" type="danger" @click="del(scope.$index, scope.row)">刪除</el-button>
      </template>
    </el-table-column>
    </el-table>
    <!-- 分頁條 -->
    <el-pagination style="margin-top: 20px;" @size-change="handleSizeChange" @current-change="handleCurrentChange"
      :current-page="formInline.page" :page-sizes="[10, 20, 30, 50]" :page-size="formInline.rows" layout="total, sizes, prev, pager, next, jumper"
      :total="pageBean.total">
    </el-pagination>
    <!-- 編輯界面 -->
    <el-dialog :title="title" :visible.sync="editFormVisible" width="30%" @click="closeDialog">
      <el-form label-width="120px" :model="editForm" :rules="rules" ref="editForm">
        <el-form-item label="文章標題" prop="title">
          <el-input size="small" v-model="editForm.title" auto-complete="off" placeholder="請輸入文章標題"></el-input>
        </el-form-item>
        <el-form-item label="文章內容" prop="body">
          <el-input size="small" v-model="editForm.body" auto-complete="off" placeholder="請輸入文章內容"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button size="small" @click="closeDialog">取消</el-button>
        <el-button size="small" type="primary" class="title" @click="submitForm('editForm')">保存</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        listData: [],
        pageBean: {
          total: 0
        },
        formInline: {
          title: '',
          page: 1,
          rows: 10,
        },
        editFormVisible: false,
        title: '',
        editForm: {
          body: '',
          title: '',
          id:0,
        },
        rules: {
          title: [{
              required: true,
              message: '請輸入文章標題',
              trigger: 'blur'
            }],
             body: [{
                required: true,
                message: '請輸入文章內容',
                trigger: 'blur'
              },
              {
                min: 5,
                max: 10,
                message: '長度在 5 到 10 個字符',
                trigger: 'blur'
              }
          ],
        }
      }
    },
    methods: {
      search() {
        this.doSearch(this.formInline);
      },
      doSearch(params) {
        let url = this.axios.urls.SYSTEM_ARTICLE_LIST;
        this.axios.post(url, params).then((response) => {
          console.log(response);
          this.listData = response.data.result;
          this.pageBean = response.data.pageBean;
        }).catch((response)=>{
          console.log(response);
        });
      },
      handleSizeChange(rows) {
        console.log('頁碼大小發生改變的時候觸發！！！' + rows)
        this.formInline.page = 1;
        this.formInline.rows = rows;
        this.search();
      },
      handleCurrentChange(page) {
        console.log('當前頁頁碼發生改變的時候觸發！！！' + page)
        this.formInline.page = page;
        this.search();
      },
      closeDialog() {
        this.editFormVisible = false;
        this.clearForm();
      },
      submitForm(){
        // 用來提交新增，修改表單數據的，提交以前須要經過vue實例中定義表單填寫規則
        this.$refs['editForm'].validate((valid) => {
          if (valid) {
            //設置地址
            let url;
            if(this.editForm.id==0){
              //調用新增方法
              url =this.axios.urls.SYSTEM_ARTICLE_ADD;
            }else{
              //調用修改方法
              url =this.axios.urls.SYSTEM_ARTICLE_EDIT;
            }
            this.axios.post(url,this.editForm).then((response) => {
              console.log(response);
              this.clearForm();
               this.doSearch(this.formInline);
            }).catch((response)=>{
              console.log(response);
            });
          } else {
            console.log('error submit!!');
            return false;
          }
          });
      },
      clearForm(){
        this.editForm.id=0;
        this.editForm.title='';
        this.editForm.body='';
        this.formInline.page=1;//初始頁爲1
        this.formInline.rows=10;//每頁10條數據
        this.editFormVisible=false;//關閉彈窗
      },
      //新增方法
      add(){
        this.title='新增文章',
        //讓框彈出來
        this.editFormVisible=true;
      },
      //修改的方法
      edit(index,row){
        // index表明的是操做數據在當前界面的行號
        // row表明操做當前數據，就意味着能夠衝row中或全部數據庫列段名
        // var row=$("#dd").datagrid("getselected");
        // $("ff").form("load","row");完成了數據回顯
      this.title='編輯文章',
      //把數據顯示在框框上
      this.editForm.id = row.id;
      this.editForm.title = row.title;
      this.editForm.body = row.body;
      //讓框彈出來
      this.editFormVisible=true;
      },
      //刪除的方法
       del(index,row){
         let url = this.axios.urls.SYSTEM_ARTICLE_DEL;
         this.axios.post(url,{id:row.id}).then((response) => {
           console.log(response);
           this.clearForm();
            this.doSearch({});
         }).catch((response)=>{
           console.log(response);
         });
       }
    },
    created() {
      this.doSearch({});
    }
  }
</script>
<style>
</style>