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utils.go
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/
utils.go
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package homework
import (
"errors"
"github.com/benoitkugler/maths-online/server/src/sql/tasks"
"github.com/benoitkugler/maths-online/server/src/sql/teacher"
"github.com/benoitkugler/maths-online/server/src/utils"
)
type OptionalIdTravail struct {
Valid bool
ID IdTravail
}
func (id IdTravail) AsOptional() OptionalIdTravail {
return OptionalIdTravail{ID: id, Valid: true}
}
func LoadMonoquestionSheet(db DB, idMono tasks.IdMonoquestion) (tasks.IdTask, IdSheet, error) {
ts, err := tasks.SelectTasksByIdMonoquestions(db, idMono)
if err != nil {
return 0, 0, utils.SQLError(err)
}
if len(ts) != 1 {
return 0, 0, errors.New("internal error: expected one task for a monoquestion")
}
link, found, err := SelectSheetTaskByIdTask(db, ts.IDs()[0])
if err != nil {
return 0, 0, err
}
if !found {
return 0, 0, errors.New("internal error: task without sheet")
}
return link.IdTask, link.IdSheet, nil
}
func LoadRandomMonoquestionSheet(db DB, idMono tasks.IdRandomMonoquestion) (tasks.IdTask, IdSheet, error) {
ts, err := tasks.SelectTasksByIdRandomMonoquestions(db, idMono)
if err != nil {
return 0, 0, utils.SQLError(err)
}
if len(ts) != 1 {
return 0, 0, errors.New("internal error: expected one task for a monoquestion")
}
link, found, err := SelectSheetTaskByIdTask(db, ts.IDs()[0])
if err != nil {
return 0, 0, err
}
if !found {
return 0, 0, errors.New("internal error: task without sheet")
}
return link.IdTask, link.IdSheet, nil
}
// IsVisibleBy returns `true` if the Sheet is public or
// owned by `userID`
func (qu Sheet) IsVisibleBy(userID teacher.IdTeacher) bool {
return qu.Public || qu.IdTeacher == userID
}
// RestrictVisible remove the sheets not visible by `userID`
func (qus Sheets) RestrictVisible(userID teacher.IdTeacher) {
for id, qu := range qus {
if !qu.IsVisibleBy(userID) {
delete(qus, id)
}
}
}