Vue2.0表单校验组件vee-validate的使用详解

npm install vee-validate@next --save

bower install vee-validate#2.0.0-beta.13 --save

import Vue from 'vue';
import VeeValidate from 'vee-validate';
Vue.use(VeeValidate);

import VeeValidate, { Validator } from 'vee-validate';
import messages from 'assets/js/zh_CN';
Validator.updateDictionary({
  zh_CN: {
    messages
  }
});
const config = {
  errorBagName: 'errors', // change if property conflicts.
  delay: 0,
  locale: 'zh_CN',
  messages: null,
  strict: true
};
Vue.use(VeeValidate,config);

<div class="column is-12">
  <label class="label" for="email">Email</label>
  <p class="control">
    <input v-validate data-rules="required|email" :class="{'input': true, 'is-danger': errors.has('email') }" name="email" type="text" placeholder="Email">
    <span v-show="errors.has('email')" class="help is-danger">{{ errors.first('email') }}</span>
  </p>
</div>

import { Validator } from 'vee-validate';
const validator = new Validator({
  email: 'required|email',
  name: 'required|alpha|min:3',
}); 
// or Validator.create({ ... });

import { Validator } from 'vee-validate';
const validator = new Validator();

validator.attach('email', 'required|email'); // attach field.
validator.attach('name', 'required|alpha', 'Full Name'); // attach field with display name for error generation.

validator.detach('email'); // you can also detach fields.

validator.validate('email', 'foo@bar.com'); // true
validator.validate('email', 'foo@bar'); // false
//或者同时校验多个:
validator.validateAll({
  email: 'foo@bar.com',
  name: 'John Snow'
});
//只要有一个校验失败了，就返回false

const validator = (value, args) => {
  // Return a Boolean or a Promise.
}
//最基本的形式，只返回布尔值或者Promise，带默认的错误提示

const validator = {
  getMessage(field, args) { // 添加到默认的英文错误消息里面
    // Returns a message.
  },
  validate(value, args) {
    // Returns a Boolean or a Promise.
  }
};

const validator = {
  messages: {
    en: (field, args) => {
      // 英文错误提示
    },
    cn: (field, args) => {
      // 中文错误提示
    }
  },
  validate(value, args) {
    // Returns a Boolean or a Promise.
  }
};

import { Validator } from 'vee-validate';
const isMobile = {
  messages: {
    en:(field, args) => field + '必须是11位手机号码',
  },
  validate: (value, args) => {
    return value.length == 11 && /^((13|14|15|17|18)[0-9]{1}\d{8})$/.test(value)
  }
}
Validator.extend('mobile', isMobile);

//或者直接

Validator.extend('mobile', {
  messages: {
   en:field => field + '必须是11位手机号码',
  },
  validate: value => {
   return value.length == 11 && /^((13|14|15|17|18)[0-9]{1}\d{8})$/.test(value)
  }
});

<input v-validate data-rules="required|mobile" :class="{'input': true, 'is-danger': errors.has('mobile') }" name="mobile" type="text" placeholder="Mobile">
<span v-show="errors.has('mobile')" class="help is-danger">{{ errors.first('mobile') }}</span>

import { Validator } from 'vee-validate';

const dictionary = {
  en: {
    messages: {
      alpha: () => 'Some English Message'
    }
  },
  cn: {
    messages: {
      alpha: () => '对alpha规则的错误定义中文描述'
    }
  }
};

Validator.updateDictionary(dictionary);