feat: v2(Incomplete,very early version)

model/user.go

@@ -0,0 +1,43 @@
+package model
+
+import (
+	"fmt"
+
+	"github.com/ssdomei232/goodBaby/handler/db"
+)
+
+type User struct {
+	ID             uint    `json:"id" gorm:"primaryKey"`
+	CreateAt       int64   `json:"create_at"`
+	Username       string  `json:"username"`
+	Password       string  `json:"-"`
+	DingTalkConfig *string `json:"dingtalk_config"`
+}
+
+func (u *User) IsValid() error {
+	if u.Username == "" || u.Password == "" {
+		return fmt.Errorf("用户名或密码不能为空")
+	}
+	if len(u.Username) > 32 || len(u.Username) < 2 {
+		return fmt.Errorf("用户名过长或过短")
+	}
+	if len(u.Password) > 64 || len(u.Password) < 6 {
+		return fmt.Errorf("密码过长或过短")
+	}
+	return nil
+}
+
+func (u *User) IsExist() bool {
+	db, err := db.GetGormDB()
+	if err != nil {
+		return false
+	}
+
+	var count int64
+	result := db.Where("username = ?", u.Username).Count(&count)
+	if result.Error != nil {
+		return false
+	}
+
+	return count > 0
+}