public async Task <T> First <T>() where T : class
{
using SkipContext _db = new SkipContext();
T result = _db.DbSet <T>().FirstOrDefault();
return(await Task.Run(() => result));
}
public async Task <T[]> Where <T>(Func <T, bool> predicate) where T : class
{
using SkipContext _db = new SkipContext();
IEnumerable <T> result = _db.DbSet <T>().Where(predicate);
return(await Task.Run(() => result.ToArray()));
}
// public async void Change(int Id, SReason obj)
// {
// using SkipContext _db = new SkipContext();
// SReason oldObj = _db.DbSet<SReason>().Find(Id);
// if(oldObj != null){
// if(obj.Skip_Id != 0) oldObj.StudentId = obj.StudentId;
// else if(obj.Img != null) oldObj.Img = obj.Img;
// else if(obj.Count != 0) oldObj.Count = obj.Count;
// else if(obj.Date != null) oldObj.Date = obj.Date;
// }
// await _db.SaveChangesAsync();
// }
public async Task <int> Change <T>(int Id, T obj) where T : class
{
using (SkipContext _db = new SkipContext())
{
var oldObj = _db.DbSet <T>().Find(Id);
oldObj = obj;
return(await _db.SaveChangesAsync());
}
}
public async void setSReason(string path, int studentId, string month, int count)
{
Student student = await _main.GetById <Student>(studentId);
Group group = await _main.GetById <Group>(student.GroupId);
using SkipContext _db = new SkipContext();
Models.Report value = _db.DbSet <Models.Report>()
.First(e =>
e.EduYear == group.Course &&
e.Month == month &&
e.StudentId == studentId);
_skip.Add(
new SReason
{
Count = count,
Date = DateTime.Now,
Img = path,
Skip_Id = value.Id
}
);
}
public async void setSkip(List <AddSkips> data, string month, int eduYear, int semester, int groupId)
{
Student[] students = (await _main.Where <Student>(e => e.GroupId == groupId)).OrderBy(e => e.Surname).ToArray();
using SkipContext _db = new SkipContext();
for (int i = 0; i < students.Count(); i++)
{
var report = _db.DbSet <Models.Report>()
.First(e => e.StudentId == students[i].Id &&
e.EduYear == eduYear &&
e.Semester == semester &&
e.Month == month);
report.Count += data[i].Count;
_skip.Add(new SReason
{
Count = data[i].SReason,
Date = DateTime.Now,
Img = "",
Skip_Id = report.Id
});
await _db.SaveChangesAsync();
}
}
public async Task <T> GetById <T>(int Id) where T : class
{
using SkipContext _db = new SkipContext();
return(await Task.Run(() => _db.DbSet <T>().Find(Id)));
}
public async Task <T[]> Get <T>() where T : class
{
using SkipContext _db = new SkipContext();
return(await Task.Run(() => _db.DbSet <T>().ToArray()));
}
