vue-form表單驗證

<template>
    <div class="register">
        <section class="form_container">
            <div class="manage_tip">
                <span class="title">米修在線后台管理系統</span>
            </div>
            <el-form :model="registerUser" :rules="rules" class="registerForm" ref="registerForm" label-width="80px">
                <el-form-item label="用戶名" prop="name">
                    <el-input v-model="registerUser.name" placeholder="請輸入用戶名"></el-input>
                </el-form-item>
                <el-form-item label="郵箱" prop="email">
                    <el-input v-model="registerUser.email" placeholder="請輸入郵箱"></el-input>
                </el-form-item>
                <el-form-item label="密碼" prop="password">
                    <el-input v-model="registerUser.password" placeholder="請輸入密碼" type="password"></el-input>
                </el-form-item>
                <el-form-item label="確認密碼" prop="password2">
                    <el-input v-model="registerUser.password2" placeholder="請確認密碼" type="password"></el-input>
                </el-form-item>
                <el-form-item label="選擇身份">
                    <el-select v-model="registerUser.identity" placeholder="請選擇身份">
                        <el-option label="管理員" value="manager"></el-option>
                        <el-option label="員工" value="employee"></el-option>
                    </el-select>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary"  class="submit_btn" @click="submitForm('registerForm')">注 冊</el-button>
                </el-form-item>
            </el-form>
        </section>
    </div>
</template>

<script>
export default {
  name: "register",
 //    判斷密碼是否一致；
  data() {
    var validatePass2 = (rule, value, callback) => {
      if (value !== this.registerUser.password) {
        callback(new Error("兩次輸入密碼不一致!"));
      } else {
        callback();
      }
    };
    return {
      registerUser: {
        name: "",
        email: "",
        password: "",
        password2: "",
        identity: ""
      },
//    在return 后面；
      rules: {
      // 要以數組形式展示
        name: [
          { required: true, message: "用戶名不能為空", trigger: "change" },
          { min: 2, max: 30, message: "長度在 2 到 30 個字符", trigger: "blur" }
        ],
        email: [
          {
            type: "email",
            required: true,
            message: "郵箱格式不正確",
            trigger: "blur"
          }
        ],
        password: [
          { required: true, message: "密碼不能為空", trigger: "blur" },
          { min: 6, max: 30, message: "長度在 6 到 30 個字符", trigger: "blur" }
        ],
        password2: [
          { required: true, message: "確認密碼不能為空", trigger: "blur" },
          {
            min: 6,
            max: 30,
            message: "長度在 6 到 30 個字符",
            trigger: "blur"
          },
          { validator: validatePass2, trigger: "blur" }
        ]
      }
    };
  },
  methods: {
    submitForm(formName) {
      this.$refs[formName].validate(valid => {
        if (valid) {
          this.$axios
            .post("/api/users/register", this.registerUser)
            .then(res => {
              // 注冊成功
              this.$message({
                message: "注冊成功！",
                type: "success"
              });
              // this.$router.push("/login");
            });
        } else {
          console.log("error submit!!");
          return false;
        }
      });
    }
  }
};
</script>

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