public void CreateSchool(School s)
{
using (var db = new HstDBContainer(_connectionString))
{
db.Schools.AddObject(s);
db.SaveChanges();
}
}
public bool AuthorizeTeacher(User u, Child c)
{
using (var db = new HstDBContainer(_connectionString))
{
var result = (from child in db.Children
where child.Id == c.Id
select child).First();
return result.Users.Contains(u) && u.IsTeacher;
}
}
public List<Subject> GetAllSubjects()
{
var results = new List<Subject>();
using (var db = new HstDBContainer(_connectionString))
{
var subjects = from s in db.Subjects
select s;
foreach (var subject in subjects)
{
results.Add(subject);
}
}
return results;
}
public List<Child> GetChildrenByUser(User user)
{
var result = new List<Child>();
using (var db = new HstDBContainer(_connectionString))
{
var children = (from c in db.Children
where c.Users.Any(a => a.Login == user.Login)
select c).AsEnumerable();
foreach (var child in children)
{
result.Add(child);
}
}
return result;
}
public List<Child> GetChildrenByIds(List<int> ids)
{
var result = new List<Child>();
using (var db = new HstDBContainer(_connectionString))
{
var children = (from c in db.Children
where ids.Contains(c.Id)
select c).AsEnumerable();
foreach (var child in children)
{
result.Add(child);
}
}
return result;
}
public List<Subject> GetSubjectsByIds(List<int> ids)
{
var results = new List<Subject>();
using (var db = new HstDBContainer(_connectionString))
{
var subjects = (from s in db.Subjects
where ids.Contains(s.Id)
select s).AsEnumerable();
foreach (var subject in subjects)
{
results.Add(subject);
}
}
return results;
}
public string GetSchoolName(User u)
{
using (var db = new HstDBContainer(_connectionString))
{
var result = from s in db.Schools
where s.Users.Contains(u)
select s;
if (result.Count() > 0)
{
return result.First().SchoolName;
}
else
{
return string.Empty;
}
}
}
public User GetUserByLogin(string login)
{
var user = new User();
using (var db = new HstDBContainer(_connectionString))
{
var result = (from u in db.Users
where u.Login == login
select u).AsEnumerable();
if (result != null)
{
user = result.First();
db.LoadProperty(user, "School");
//db.Users.Detach(user);
}
}
return user;
}
public void PersistChild(Child child)
{
using (var db = new HstDBContainer(_connectionString))
{
var children = from c in db.Children
where c.Id == child.Id
select c;
if (children.Count() > 0)
{
db.Children.Attach(child);
db.Children.ApplyCurrentValues(child);
db.SaveChanges();
}
else
{
db.Children.AddObject(child);
db.SaveChanges();
}
}
}
public void PersistSubject(Subject subject)
{
using (var db = new HstDBContainer(_connectionString))
{
var subjects = from s in db.Subjects
where s.Id == subject.Id
select s;
if (subjects.Count() > 0)
{
db.Subjects.Attach(subject);
db.Subjects.ApplyCurrentValues(subject);
db.SaveChanges();
}
else
{
db.Subjects.AddObject(subject);
db.SaveChanges();
}
}
}
public void PersistStudent(Child student)
{
using (var db = new HstDBContainer(_connectionString))
{
var students = from c in db.Children
where c.Id == student.Id
select c;
if (students.Count() > 0)
{
db.Children.Attach(student);
db.Children.ApplyCurrentValues(student);
db.DetectChanges();
db.SaveChanges();
}
else
{
db.Children.AddObject(student);
db.SaveChanges();
}
}
}
public void PersistActivity(Activity activity)
{
using (var db = new HstDBContainer(_connectionString))
{
var activities = from a in db.Activities
where a.Id == activity.Id
select a;
if (activities.Count() > 0)
{
db.Activities.Attach(activity);
db.Activities.ApplyCurrentValues(activity);
db.SaveChanges();
}
else
{
db.Activities.AddObject(activity);
foreach (var child in activity.Children)
{
db.ObjectStateManager.ChangeObjectState(child, EntityState.Unchanged);
}
foreach (var subject in activity.Subjects)
{
db.ObjectStateManager.ChangeObjectState(subject, EntityState.Unchanged);
}
foreach (var user in activity.Users)
{
db.ObjectStateManager.ChangeObjectState(user, EntityState.Unchanged);
}
db.DetectChanges();
db.SaveChanges();
}
}
}
public void PersistUser(User u)
{
using (var db = new HstDBContainer(_connectionString))
{
var user = from users in db.Users
where users.Id == u.Id
select users;
if (user.Count() > 0)
{
db.Users.Attach(u);
db.Users.ApplyCurrentValues(u);
db.SaveChanges();
}
else
{
db.Users.AddObject(u);
foreach (var lesson in u.Lessons)
{
db.ObjectStateManager.ChangeObjectState(lesson, EntityState.Unchanged);
}
foreach (var activity in u.Activities)
{
db.ObjectStateManager.ChangeObjectState(activity, EntityState.Unchanged);
}
foreach (var child in u.Children)
{
db.ObjectStateManager.ChangeObjectState(child, EntityState.Unchanged);
}
foreach (var test in u.Tests)
{
db.ObjectStateManager.ChangeObjectState(test, EntityState.Unchanged);
}
db.ObjectStateManager.ChangeObjectState(u.School, EntityState.Unchanged);
db.SaveChanges();
}
}
}
public void PersistLesson(Lesson lesson)
{
using (var db = new HstDBContainer(_connectionString))
{
var lessons = from l in db.Lessons
where l.Id == lesson.Id
select l;
if (lessons.Count() > 0)
{
db.Lessons.Attach(lesson);
db.Lessons.ApplyCurrentValues(lesson);
db.SaveChanges();
}
else
{
db.Lessons.AddObject(lesson);
foreach (var child in lesson.Children)
{
db.ObjectStateManager.ChangeObjectState(child, EntityState.Unchanged);
}
foreach (var subject in lesson.Subjects)
{
db.ObjectStateManager.ChangeObjectState(subject, EntityState.Unchanged);
}
foreach (var user in lesson.Users)
{
db.ObjectStateManager.ChangeObjectState(user, EntityState.Unchanged);
}
db.DetectChanges();
db.SaveChanges();
}
}
}
public void PersistTestScore(TestResult result)
{
using (var db = new HstDBContainer(_connectionString))
{
var testscores = from ts in db.TestResults
where ts.Id == result.Id
select ts;
if (testscores.Count() > 0)
{
db.TestResults.Attach(result);
db.TestResults.ApplyCurrentValues(result);
db.SaveChanges();
}
else
{
db.TestResults.AddObject(result);
foreach (var child in result.Children)
{
db.ObjectStateManager.ChangeObjectState(child, EntityState.Unchanged);
}
foreach (var test in result.Tests)
{
db.ObjectStateManager.ChangeObjectState(test, EntityState.Unchanged);
}
db.DetectChanges();
db.SaveChanges();
}
}
}
public void PersistTest(Test test)
{
using (var db = new HstDBContainer(_connectionString))
{
var tl = from t in db.Tests
where t.Id == test.Id
select t;
if (tl.Count() > 0)
{
db.Tests.Attach(test);
db.Tests.ApplyCurrentValues(test);
db.SaveChanges();
}
else
{
db.Tests.AddObject(test);
db.ObjectStateManager.ChangeObjectState(test, EntityState.Added);
foreach (var result in test.TestResults)
{
//db.TestResults.Detach(result);
db.ObjectStateManager.ChangeObjectState(result, EntityState.Unchanged);
}
foreach (var subject in test.Subjects)
{
//db.Subjects.Detach(subject);
db.ObjectStateManager.ChangeObjectState(subject, EntityState.Unchanged);
}
foreach (var user in test.Users)
{
//db.Users.Detach(user);
db.ObjectStateManager.ChangeObjectState(user, EntityState.Unchanged);
}
//db.DetectChanges();
db.SaveChanges(SaveOptions.AcceptAllChangesAfterSave);
}
}
}
