refactor:

- source 初始化数据 new 实现
- service mysql 与 pgsql 分开实现
- 代码备注优化

server/source/system/user.go

@@ -0,0 +1,35 @@
+package system
+
+import (
+	"github.com/flipped-aurora/gin-vue-admin/server/global"
+	"github.com/flipped-aurora/gin-vue-admin/server/model/system"
+	"github.com/pkg/errors"
+	uuid "github.com/satori/go.uuid"
+	"gorm.io/gorm"
+)
+
+var User = new(user)
+
+type user struct{}
+
+func (u *user) TableName() string {
+	return "sys_users"
+}
+
+func (u *user) Initialize() error {
+	entities := []system.SysUser{
+		{UUID: uuid.NewV4(), Username: "admin", Password: "e10adc3949ba59abbe56e057f20f883e", NickName: "超级管理员", HeaderImg: "https://qmplusimg.henrongyi.top/gva_header.jpg", AuthorityId: "888"},
+		{UUID: uuid.NewV4(), Username: "a303176530", Password: "3ec063004a6f31642261936a379fde3d", NickName: "QMPlusUser", HeaderImg: "https:///qmplusimg.henrongyi.top/1572075907logo.png", AuthorityId: "9528"},
+	}
+	if err := global.GVA_DB.Create(&entities).Error; err != nil {
+		return errors.Wrap(err, u.TableName()+"表数据初始化失败!")
+	}
+	return nil
+}
+
+func (u *user) CheckDataExist() bool {
+	if errors.Is(global.GVA_DB.Where("username = ?", "a303176530").First(&system.SysUser{}).Error, gorm.ErrRecordNotFound) { // 判断是否存在数据
+		return false
+	}
+	return true
+}