pagination

type Paginator struct {
	TotalRecord int         `json:"totalRecordNum"`
	TotalPage   int         `json:"totalPageNum"`
	Records     interface{} `json:"records"`
	Offset      int         `json:"offset"`
	Limit       int         `json:"limit"`
	Page        int         `json:"page"`
	PrevPage    int         `json:"prevPage"`
	NextPage    int         `json:"nextPage"`
}

type Param struct {
	DB      *gorm.DB
	Page    int
	Limit   int
	OrderBy []string
	ShowSQL bool
}