19

我对 vuelidate 有点陌生，一切正常，除了我不知道如何仅在Submit单击按钮时运行验证。现在，当您开始提供任何输入时，它会将触摸字段标记为红色，我希望它等待，直到用户想要提交填写的表单。

这是我现在所做的： 

Vue.use(window.vuelidate.default)
const { required, minLength, sameAs } = window.validators

new Vue({
	el: "#app",
  data: {
  	user: {
    	login: '',
      password: '',
      repeatedPassword: ''
    }
  },
  validations: {
  	user: {
    	login: {
      	required,
        minLength: minLength(5)
      },
      password: {
    	  required,
        minLength: minLength(8)
      },
      repeatedPassword: {
      	required,
        sameAs: sameAs('password')
      }
    }
  }
})
input {
  border: 1px solid silver;
  border-radius: 4px;
  background: white;
  padding: 5px 10px;
}

.error {
  border-color: red;
  background: #FDD;
}

.error:focus {
  outline-color: #F99;
}

.valid {
  border-color: #5A5;
  background: #EFE;
}

.valid:focus {
  outline-color: #8E8;
}
<script src="https://unpkg.com/vue"></script>
<script src="https://unpkg.com/vuelidate/dist/validators.min.js"></script>
<script src="https://unpkg.com/vuelidate/dist/vuelidate.min.js"></script>
`<div id="app">

  <input type="text" placeholder="login"
    v-model="user.login"
    v-on:input="$v.user.login.$touch"
    v-bind:class="{error: $v.user.login.$error, valid: $v.user.login.$dirty && !$v.user.login.$invalid}">
  <br/>    
  <input type="password" placeholder="password"
    v-model="user.password"
    v-on:input="$v.user.password.$touch"
    v-bind:class="{error: $v.user.password.$error, valid: $v.user.password.$dirty && !$v.user.password.$invalid}">
  <br/>  
  <input type="password" placeholder="repeat password"
    v-model="user.repeatedPassword"
    v-on:input="$v.user.repeatedPassword.$touch"
    v-bind:class="{error: $v.user.repeatedPassword.$error, valid: $v.user.repeatedPassword.$dirty && !$v.user.repeatedPassword.$invalid}"
  >
  <button :disabled="$v.user.$error" @click="$v.user.$touch()">
    Submit!
  </button>
</div>`

4

3 回答 3

3

那么在设置验证之后你唯一要做的就是调用一个方法来验证错误。所以请遵循以下：

<button @click="validate">Submit</button>

方法：

validate () {
  this.$v.$touch() //it will validate all fields
  if (!this.$v.$invalid) { //invalid, becomes true when a validations return false
   //you dont have validation error.So do what u want to do here
  }
}
于 2018-03-08T21:02:25.553 回答
3

我永远无法真正习惯 Vuelidate 的做事方式，但是，一般来说，它的工作原理是这样的： https ://monterrail.github.io/vuelidate/#sub-basic-form

像这样设置它可以让您对每个表单输入/元素进行验证，然后全面检查表单是否“脏”和/或“无效”

form: {
"name": {
"required": false,
"$invalid": true,
"$dirty": false,
"$error": false,
"$pending": false,
"$params": {
  "required": {
    "type": "required"
  }
}
},
"Age": {
  "required": false,
  "$invalid": true,
  "$dirty": false,
  "$error": false,
  "$pending": false,
  "$params": {
    "required": {
      "type": "required"
    }
  }
},
"$invalid": true,  <------- This is what you are after for valid/invalid
"$dirty": false,   <------- This is what you are after to see if the form has been used.
"$error": false,  <-------  This checks both invalid and dirty
"$pending": false,
"$params": {
   "nestedA": null,
   "nestedB": null
}
}

至于在实践中使用它，一种选择是在提交时调用 validateform 事件。

@click.prevent="validateform"

然后在您的 vue 实例中创建一个 validateform 方法来检查

$v.form.$invalid  or $v.form.$error

然后要么显示错误，要么调用实际的提交方法

于 2017-08-31T17:12:49.427 回答
-2

这是我对VeeValidate 3所做的事情：

<validation-observer ref="jobValidation">
 <form>
     <button v-on:click="nextPage()" type="button">Next</button>
 </form>
</validation-observer>

和方法内：

nextPage(): void {                 
    const validation = (this.$refs.jobValidation as any);
    validation.validate().then(() => {                 
    if (validation.flags.invalid) {                           
        // No no no no
        // bonus: show all errors in summary
        validation.$children.forEach((child: any) => {
           child.errors.forEach((error: any) => {
              console.log(error);
           });
           return;
        });
    } else {
        // Yes yes yes
    }
    });  
},
于 2020-08-12T20:24:40.030 回答