Pagination

app/repository/pagination.go

@@ -5,8 +5,9 @@ type Pagination struct {
 	Page     int
 }
 
-func (p *Pagination) New() *Pagination {
-	p.PageSize = 50
-	p.Page = 1
-	return p
+func NewPagination() Pagination {
+	return Pagination{
+		PageSize: 50,
+		Page:     1,
+	}
 }

app/repository/users.go

@@ -34,11 +34,23 @@ func applyFilter(db *gorm.DB, filter *UserFilter) *gorm.DB {
 	return query
 }
 
-func (repository *UsersRepository) List(filter *UserFilter) *[]models.User {
+func applyPagination(db *gorm.DB, pagination *Pagination) *gorm.DB {
+	query := db
+
+	if pagination != nil {
+		query.Limit(pagination.PageSize)
+		query.Offset(pagination.PageSize * (pagination.Page - 1))
+	}
+
+	return query
+}
+
+func (repository *UsersRepository) List(filter *UserFilter, pagination *Pagination) *[]models.User {
 	var users []models.User
 
 	query := repository.db.Model(&models.User{})
 	query = applyFilter(query, filter)
+	query = applyPagination(query, pagination)
 	query.Find(&users)
 
 	return &users

app/views/users.go

@@ -12,7 +12,8 @@ func GetUsersPage(ctx iris.Context) {
 
 	userRepository := repository.Dao.UsersRepository
 
-	users := userRepository.List(&repository.UserFilter{})
+	pagination := repository.NewPagination()
+	users := userRepository.List(&repository.UserFilter{}, &pagination)
 
 	ctx.ViewData("users", users)