public async ValueTask <bool> DeleteResourceFromLessonAsync(long resId, long lessonId)
{
try
{
var rel = new RelResourceLesson {
ResourceId = resId, LessonId = lessonId
};
Db.Attach(rel);
/*var rel =
* Db.RelResourceLessons.FirstOrDefaultAsync(
* r => r.LessonId == lessonId && r.ResourceId == resId);*/
//if (rel is null) return;
Db.RelResourceLessons.Remove(rel);
await Db.SaveChangesAsync();
return(true);
}
catch (Exception e)
{
Logger.LogError(e.Message);
return(false);
}
}
public async ValueTask <bool> InsertResourceToLessonAsync(long lessonId, ElementSummary des)
{
try
{
var ir = new RelResourceLesson
{
LessonId = lessonId,
ResourceId = des.Id
};
await Db.RelResourceLessons.AddAsync(ir);
await Db.SaveChangesAsync();
return(true);
}
catch (Exception e)
{
Logger.LogError(e.Message);
return(false);
}
}
