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【2019-07-23】VUE表单验证

【2019-07-23】VUE表单验证

作者: 咖喱cc | 来源:发表于2019-07-23 15:30 被阅读0次

    友情链接之官方文档:

    https://element.eleme.cn/#/zh-CN/component/form

    官方说明:

    Form 组件提供了表单验证的功能,只需要通过 rules 属性传入约定的验证规则,并将 Form-Item 的 prop 属性设置为需校验的字段名即可。校验规则参见 async-validator

    官方举例

    <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
      <el-form-item label="活动名称" prop="name">
        <el-input v-model="ruleForm.name"></el-input>
      </el-form-item>
      <el-form-item label="活动区域" prop="region">
        <el-select v-model="ruleForm.region" placeholder="请选择活动区域">
          <el-option label="区域一" value="shanghai"></el-option>
          <el-option label="区域二" value="beijing"></el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="活动时间" required>
        <el-col :span="11">
          <el-form-item prop="date1">
            <el-date-picker type="date" placeholder="选择日期" v-model="ruleForm.date1" style="width: 100%;"></el-date-picker>
          </el-form-item>
        </el-col>
        <el-col class="line" :span="2">-</el-col>
        <el-col :span="11">
          <el-form-item prop="date2">
            <el-time-picker placeholder="选择时间" v-model="ruleForm.date2" style="width: 100%;"></el-time-picker>
          </el-form-item>
        </el-col>
      </el-form-item>
      <el-form-item label="即时配送" prop="delivery">
        <el-switch v-model="ruleForm.delivery"></el-switch>
      </el-form-item>
      <el-form-item label="活动性质" prop="type">
        <el-checkbox-group v-model="ruleForm.type">
          <el-checkbox label="美食/餐厅线上活动" name="type"></el-checkbox>
          <el-checkbox label="地推活动" name="type"></el-checkbox>
          <el-checkbox label="线下主题活动" name="type"></el-checkbox>
          <el-checkbox label="单纯品牌曝光" name="type"></el-checkbox>
        </el-checkbox-group>
      </el-form-item>
      <el-form-item label="特殊资源" prop="resource">
        <el-radio-group v-model="ruleForm.resource">
          <el-radio label="线上品牌商赞助"></el-radio>
          <el-radio label="线下场地免费"></el-radio>
        </el-radio-group>
      </el-form-item>
      <el-form-item label="活动形式" prop="desc">
        <el-input type="textarea" v-model="ruleForm.desc"></el-input>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="submitForm('ruleForm')">立即创建</el-button>
        <el-button @click="resetForm('ruleForm')">重置</el-button>
      </el-form-item>
    </el-form>
    <script>
      export default {
        data() {
          return {
            ruleForm: {
              name: '',
              region: '',
              date1: '',
              date2: '',
              delivery: false,
              type: [],
              resource: '',
              desc: ''
            },
            rules: {
              name: [
                { required: true, message: '请输入活动名称', trigger: 'blur' },
                { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
              ],
              region: [
                { required: true, message: '请选择活动区域', trigger: 'change' }
              ],
              date1: [
                { type: 'date', required: true, message: '请选择日期', trigger: 'change' }
              ],
              date2: [
                { type: 'date', required: true, message: '请选择时间', trigger: 'change' }
              ],
              type: [
                { type: 'array', required: true, message: '请至少选择一个活动性质', trigger: 'change' }
              ],
              resource: [
                { required: true, message: '请选择活动资源', trigger: 'change' }
              ],
              desc: [
                { required: true, message: '请填写活动形式', trigger: 'blur' }
              ]
            }
          };
        },
        methods: {
          submitForm(formName) {
            this.$refs[formName].validate((valid) => {
              if (valid) {
                alert('submit!');
              } else {
                console.log('error submit!!');
                return false;
              }
            });
          },
          resetForm(formName) {
            this.$refs[formName].resetFields();
          }
        }
      }
    </script>
    隐藏代码
    

    结果展示

    image.png

    总结

    1.el-form设置rules ref 属性;
    2.el-form-item 设置prop属性;
    3.data中定义rules规则;

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