如何在Vuelidate中向数组正确添加自定义验证

时间:2019-07-09 02:20:32

标签: javascript vue.js vuelidate

我有一个具有以下结构的对象数组

varientSections: [
    {
      type: "",
      values: [
        {
          varientId: 0,
          individualValue: ""
        }
      ]
    }
  ]

我创建了一个名为isDuplicate的自定义验证,该验证检查属性“ type”的重复值。例如

varientSections: [
    {
      type: "Basket",
      values: [
        {
          varientId: 0,
          individualValue: ""
        }
      ]
    },
    {
      type: "Basket", // ERROR: Duplicate with the "above" object
      values: [
        {
          varientId: 1,
          individualValue: ""
        }
      ]
    }
  ],

我能够进行自定义验证。但是,对于数组中存在的所有对象,$ invalid属性将为false。因此,数组中的所有对象将以红色突出显示

enter image description here

以下是我的验证码:

validations: {
varientSections: {
  $each: {
    type: {
      required,
      isDuplicate(type, varient) {
        console.log(varient);
        const varientIndex = this.varientSections.findIndex(
          v => v.type === type
        );

        var isWrong = true;
        this.varientSections.forEach((varObject, index) => {
          if (index !== varientIndex) {
            if (varObject.type === varient.type) {
              isWrong = false;
            }
          }
        });

        return isWrong;
      }
    },
    values: {
      $each: {
        individualValue: {
          required
        }
      }
    }
  }
}
},

2 个答案:

答案 0 :(得分:0)

应该是这样的。

<div v-for="(vs, index) in varientSections" :key="index">
    <input :class="{'is-error': $v.varientSections.$each[index].type.$error}" type="text" v-model="vs.type">
    <input :class="{'is-error': $v.varientSections.$each[index].value.$error}" type="text" v-model="vs.value>
</div>

更改错误类别以适合您的需求。

答案 1 :(得分:0)

我有完全相同的需求,发现只要将头放在要执行的操作上,解决方案就非常简单。仅当当前项目与任何上一个项目重复时,验证器才需要触发。

类似这样的东西:

validations: {
  varientSections: {
    $each: {
      isUnique(currItem, itemArr) {
        // Find the index of the first item in the array that has the same type
        var firstIdx = itemArr.findIndex((item /*, index, arr*/) =>  currItem.type === item.type );
        // If it's the same as the current item then it is not a duplicte
        if(currItem === itemArr[firstIdx])
          return true;
        // All others are considered duplicates
        return false;
      },
      type: { required }
    }
  }
}