41 lines
944 B
Go
41 lines
944 B
Go
package data
|
|
|
|
import (
|
|
"strings"
|
|
|
|
"gitea.local.lab/Lbenedar/greenlight/internal/validator"
|
|
)
|
|
|
|
type Filters struct {
|
|
Page int
|
|
PageSize int
|
|
Sort string
|
|
SortSafelist []string
|
|
}
|
|
|
|
func ValidateFilters(v *validator.Validator, f Filters) {
|
|
v.Check(f.Page > 0, "page", "must be greater than zero")
|
|
v.Check(f.Page <= 10_000_000, "page", "must be a maximum of 10 million")
|
|
v.Check(f.PageSize > 0, "page_size", "must be greater than zero")
|
|
v.Check(f.PageSize <= 100, "page_size", "must be a maximum of 100")
|
|
|
|
v.Check(validator.PermittedValue(f.Sort, f.SortSafelist...), "sort", "invalid sort values")
|
|
}
|
|
|
|
func (f Filters) sortColumn() string {
|
|
for _, safeValue := range f.SortSafelist {
|
|
if f.Sort == safeValue {
|
|
return strings.TrimPrefix(f.Sort, "-")
|
|
}
|
|
}
|
|
|
|
panic("unsafe sort parameter: " + f.Sort)
|
|
}
|
|
|
|
func (f Filters) sortDirection() string {
|
|
if strings.HasPrefix(f.Sort, "-") {
|
|
return "DESC"
|
|
}
|
|
return "ASC"
|
|
}
|