目录

表单验证规则rules 配置参数说明

自定义校验规则

表单验证规则rules 配置参数说明

• 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。
• rules使用

  rules: { 
     name: [ 
          /*required 是否必填  
            trigeer 触发检查的方式 blur 失去焦点时检查 change 值发生改变时触发*/
          { required: true, message: '请输入活动名称', trigger: 'blur' },
         
          /*type的用法 ,其它的使用请参考文档*/
          { type: 'date', required: true, message: '请选择日期', trigger: 'change' },
  
          /*使用正则*/
          {pattern:/^[a-z]+$/,message:'只能输入字母!'},
  
          /*自定义检查方法.checkfun ,
            参数 rule, value, callback ,检测成功或不成功都需要手动调用callback , 
            验证不成功时 callback(new Error('提示信息'))
            注意 当在下面的对象中有message时则验证失败只会显示message的值 */
          { validator: checkfun, trigger: 'blur' }]
  }

   

• 官网示例如下

<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>

自定义校验规则

let validateStartTime = (rule, value, callback) => {
        if (value === '') {
          callback(new Error('请输入活动开始时间'))
        } else {
          if (new Date(this.dataForm.startTime).getTime() <= new Date().getTime()) {
            callback(new Error('活动开始时间必须大于当前时间！'))
          } else {
            callback()
          }
        }
      }
      let validateEndTime = (rule, value, callback) => {
        if (value === '') {
          callback(new Error('请输入活动结束时间'))
        } else {
          if (
            new Date(this.dataForm.startTime).getTime() >=
            new Date(this.dataForm.endTime).getTime()
          ) {
            callback(new Error('活动结束时间必须大于活动开始时间！'))
          } else {
            callback()
          }
        }
      }
      return{
        dataRule: {
          startTime: [{
            trigger: 'blur',
            validator: validateStartTime
          }],
          endTime: [{
            trigger: 'blur',
            validator: validateEndTime
          }],
         
        },
      }