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/authority.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"
+	"gorm.io/gorm"
+)
+
+var Authority = new(authority)
+
+type authority struct{}
+
+func (a *authority) TableName() string {
+	return "sys_authorities"
+}
+
+func (a *authority) Initialize() error {
+	entities := []system.SysAuthority{
+		{AuthorityId: "888", AuthorityName: "普通用户", ParentId: "0", DefaultRouter: "dashboard"},
+		{AuthorityId: "9528", AuthorityName: "测试角色", ParentId: "0", DefaultRouter: "dashboard"},
+		{AuthorityId: "8881", AuthorityName: "普通用户子角色", ParentId: "888", DefaultRouter: "dashboard"},
+	}
+	if err := global.GVA_DB.Create(&entities).Error; err != nil {
+		return errors.Wrapf(err, "%s表数据初始化失败!", a.TableName())
+	}
+	return nil
+}
+
+func (a *authority) CheckDataExist() bool {
+	if errors.Is(global.GVA_DB.Where("authority_id = ?", "8881").First(&system.SysAuthority{}).Error, gorm.ErrRecordNotFound) { // 判断是否存在数据
+		return false
+	}
+	return true
+}