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/dictionary.go

@@ -0,0 +1,40 @@
+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 Dictionary = new(dictionary)
+
+type dictionary struct{}
+
+func (d *dictionary) TableName() string {
+	return "sys_dictionaries"
+}
+
+func (d *dictionary) Initialize() error {
+	status := new(bool)
+	*status = true
+	entities := []system.SysDictionary{
+		{Name: "性别", Type: "gender", Status: status, Desc: "性别字典"},
+		{Name: "数据库int类型", Type: "int", Status: status, Desc: "int类型对应的数据库类型"},
+		{Name: "数据库时间日期类型", Type: "time.Time", Status: status, Desc: "数据库时间日期类型"},
+		{Name: "数据库浮点型", Type: "float64", Status: status, Desc: "数据库浮点型"},
+		{Name: "数据库字符串", Type: "string", Status: status, Desc: "数据库字符串"},
+		{Name: "数据库bool类型", Type: "bool", Status: status, Desc: "数据库bool类型"},
+	}
+	if err := global.GVA_DB.Create(&entities).Error; err != nil {
+		return errors.Wrap(err, d.TableName()+"表数据初始化失败!")
+	}
+	return nil
+}
+
+func (d *dictionary) CheckDataExist() bool {
+	if errors.Is(global.GVA_DB.Where("type = ?", "bool").First(&system.SysDictionary{}).Error, gorm.ErrRecordNotFound) { // 判断是否存在数据
+		return false
+	}
+	return true
+}