queryutil

type KeyWord struct {
	SearchBy      string
	PageNum       string
	PageSize      string
	OrderBy       string
	PaginationOff string
}

type QueryConfig struct {
	FilterBackend     []func(db *gorm.DB) *gorm.DB
	PageSize          int
	SearchByList      []string
	FilterList        []string
	OrderByList       []string
	PreloadList       map[string]func(db *gorm.DB) *gorm.DB
	RemotePreloadlist []RemotePreloader
	// SetFilterCustomizeFunc
	// run local
	// option 1 : func(db *gorm.DB, queryValue string) *gorm.DB
	// run remotely
	// option 2 : rpc call --> to do
	//   func(manager interface{}, methodName string) *gorm.DB
	FilterCustomizeFunc map[string]interface{}
	IsDebug             bool
}

type QueryDecoder interface {
	ConditionSQL() string
	ValueSQL() interface{}
}

type QueryHandler interface {
	RemotePreloadlist() []RemotePreloader
	PageSize() int
	PageNum() int
	IsPaginationOff() bool
	HandleDBBackend() []func(*gorm.DB) *gorm.DB
	HandleWithPagination(query string) []func(*gorm.DB) *gorm.DB
	Handle(query string) []func(*gorm.DB) *gorm.DB
	HandleRemotePreloader(interface{}) error
}

type RemotePreloader struct {
	Column      string
	PreloadFunc func(args interface{}, Conditions ...string) (interface{}, error)
	Condition   string
}