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package model
import (
"github.com/jinzhu/gorm"
)
// Setting 系统设置模型
type Setting struct {
gorm . Model
Type string ` gorm:"not null" `
Name string ` gorm:"unique;not null;index:setting_key" `
Value string ` gorm:"size: `
}
// settingCache 设置项缓存
var settingCache = make ( map [ string ] string )
// GetSettingByName 用 Name 获取设置值
func GetSettingByName ( name string ) ( string , error ) {
var setting Setting
// 优先从缓存中查找
if optionValue , ok := settingCache [ name ] ; ok {
return optionValue , nil
} else {
// 尝试数据库中查找
result := DB . Where ( "name = ?" , name ) . First ( & setting )
if result . Error == nil {
settingCache [ setting . Name ] = setting . Value
return setting . Value , nil
}
return "" , result . Error
}
}
