public Form1()
{
InitializeComponent();
using (var db = new MusicClassesContext())
{
//inserting tutor names in tutor dropdown box in Lesson Records tab
var tutors = (from p in db.Person
join t in db.Tutor
on p.PersonId equals t.PersonPersonId
select (p.FirstName + " " + p.LastName));
foreach (string tutor in tutors)
{
lessonTutorDropdown.Items.Add(tutor);
}
//inserting lessons in lesson dropdown box in Student and Tutor Records tab
var lessons = from l in db.Lesson
select l.LessonName;
foreach (string l in lessons)
{
lessonDropdownBox.Items.Add(l.ToString());
lessonsToTeachListbox.Items.Add(l);
}
//inserting instruments in instrument dropdown box in Student Records tab
var instruments = from i in db.Instrument
select i.InstrumentName;
foreach (string i in instruments)
{
instrumentDropdownBox.Items.Add(i);
lessonInstrumentDropdown.Items.Add(i);
}
//inserting ensembles in ensembles dropdown box in Student and Tutor Records tab
var ensembles = from e in db.Ensemble
select e.EnsembleName;
foreach (string e in ensembles)
{
ensembleDropdownBox.Items.Add(e);
tutorEnsemblesListBox.Items.Add(e);
}
//inserting sheetmusic items in sheetmusic listbox in Tutor and Student Records tab
var sheetMusicItems = from sm in db.SheetMusic
select sm.Title;
foreach (string sm in sheetMusicItems)
{
tutorSheetMusicListbox.Items.Add(sm);
sheetMusicListBox.Items.Add(sm);
}
}
}
public void InsertEnsembleRecord()
{
using (var db = new MusicClassesContext())
{
IQueryable<Person> persons = from p in db.Person
where p.PersonId != null
select p;
var ensemble = new Ensemble
{
EnsembleName = "Beginners Ensemble",
EnsembleLevel = 1,
Person = persons.ToList()
};
db.Ensemble.Add(ensemble);
db.SaveChanges();
db.Database.Connection.Close();
}
}
public void InsertAddressRecord()
{
using (var db = new MusicClassesContext())
{
string streetAddress = "101 Tramway Road";
string suburb = "Chesapeake Bay";
string townOrCity = "Dunedin";
int postcode = 9012;
string landlinePhone = "034567890";
var address = new Address()
{
StreetAddress = streetAddress,
Suburb = suburb,
TownOrCity = townOrCity,
PostCode = postcode,
LandlinePhone = landlinePhone
};
string streetAddress2 = "25 Mystery Street";
string suburb2 = "Enigma";
string townOrCity2 = "Dunedin";
int postcode2 = 9012;
string landlinePhone2 = "034789012";
var address2 = new Address()
{
StreetAddress = streetAddress2,
Suburb = suburb2,
TownOrCity = townOrCity2,
PostCode = postcode2,
LandlinePhone = landlinePhone2
};
db.Address.Add(address);
db.Address.Add(address2);
db.SaveChanges();
db.Database.Connection.Close();
}
}
public void InsertStudentSheetMusicRecord()
{
using (var db = new MusicClassesContext())
{
int studentID = (from p in db.Person
join s in db.Student
on p.PersonId equals s.PersonPersonId
select s.StudentId).First();
int sheetMusicID = (from sm in db.SheetMusic
where sm.Title == "Bohemian Rhapsody"
select sm.SheetMusicId).First();
var studentSheetMusic = new StudentSheetMusic()
{
StudentStudentId = studentID,
SheetMusicSheetMusicId = sheetMusicID
};
db.StudentSheetMusic.Add(studentSheetMusic);
db.SaveChanges();
db.Database.Connection.Close();
}
}
public void InsertStudentRecord()
{
using (var db = new MusicClassesContext())
{
short age = 12;
decimal lessonFeesOwed = 50.00m;
decimal instrumentFeesOwed = 50.00m;
int instrumentId = (from i in db.Instrument
where i.InstrumentName == "Violin"
select i.InstrumentId).First();
int personId = (from p in db.Person
where p.FirstName == "Bob" && p.LastName == "Brown"
select p.PersonId).First();
var student = new Student()
{
Age = age,
LessonFeesOwed = lessonFeesOwed,
InstrumentFeesOwed = instrumentFeesOwed,
InstrumentInstrumentId = instrumentId,
PersonPersonId = personId,
Instrument = (from i in db.Instrument
where i.InstrumentId == instrumentId
select i).First(),
Person = (from p in db.Person
where p.PersonId == personId
select p).First()
};
db.Student.Add(student);
db.SaveChanges();
db.Database.Connection.Close();
}
}
public void InsertInstrumentRecord()
{
using (var db = new MusicClassesContext())
{
var violin = new Instrument()
{
InstrumentName = "Violin",
HireFee = 40.00m,
ConditionStatus = "Ok to use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(violin);
var recorder = new Instrument()
{
InstrumentName = "Recorder",
HireFee = 0.00m,
ConditionStatus = "Ok for use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(recorder);
var viola = new Instrument()
{
InstrumentName = "Viola",
HireFee = 40.00m,
ConditionStatus = "Ok for use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(viola);
var cello = new Instrument()
{
InstrumentName = "Cello",
HireFee = 80.00m,
ConditionStatus = "Ok for use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(cello);
var doubleBass = new Instrument()
{
InstrumentName = "Double Bass",
HireFee = 80.00m,
ConditionStatus = "Ok for use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(doubleBass);
var flute = new Instrument()
{
InstrumentName = "Flute",
HireFee = 40.00m,
ConditionStatus = "Ok for use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(flute);
var clarinet = new Instrument()
{
InstrumentName = "Clarinet",
HireFee = 40.00m,
ConditionStatus = "Ok for use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(clarinet);
var oboe = new Instrument()
{
InstrumentName = "Oboe",
HireFee = 80.00m,
ConditionStatus = "Ok for use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(oboe);
var bassoon = new Instrument()
{
InstrumentName = "Bassoon",
HireFee = 80.00m,
ConditionStatus = "Ok for use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(bassoon);
var otherWoodwind = new Instrument()
{
InstrumentName = "Other Woodwind",
HireFee = 80.00m,
ConditionStatus = "Ok for use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(otherWoodwind);
var trumpet = new Instrument()
{
InstrumentName = "Trumpet",
HireFee = 40.00m,
ConditionStatus = "Ok for use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(trumpet);
var trombone = new Instrument()
{
InstrumentName = "Trombone",
HireFee = 40.00m,
ConditionStatus = "Ok for use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(trombone);
var frenchHorn = new Instrument()
{
InstrumentName = "French Horn",
HireFee = 80.00m,
ConditionStatus = "Ok for use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(frenchHorn);
var tuba = new Instrument()
{
InstrumentName = "Tuba",
HireFee = 80.00m,
ConditionStatus = "Ok for use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(tuba);
var otherBrass = new Instrument()
{
InstrumentName = "Other Brass",
HireFee = 80.00m,
ConditionStatus = "Ok for use",
RepairStatus = "No need for repair"
};
db.Instrument.Add(otherBrass);
var percussion = new Instrument()
{
InstrumentName = "Percussion",
HireFee = 0.00m,
ConditionStatus = "N/A",
RepairStatus = "N/A"
};
db.Instrument.Add(percussion);
var vocalTechnique = new Instrument()
{
InstrumentName = "Vocal Technique",
HireFee = 0.00m,
ConditionStatus = "N/A",
RepairStatus = "N/A"
};
db.Instrument.Add(vocalTechnique);
var musicTheory = new Instrument()
{
InstrumentName = "Music Theory",
HireFee = 0.00m,
ConditionStatus = "N/A",
RepairStatus = "N/A"
};
db.Instrument.Add(vocalTechnique);
db.SaveChanges();
db.Database.Connection.Close();
}
}
public void InsertSheetMusicRecord()
{
using (var db = new MusicClassesContext())
{
var sheetMusic = new SheetMusic()
{
Title = "Bohemian Rhapsody",
ComposerName = "Freddy Mercury",
DifficultyLevel = 2,
NumberOfAuthCopies = 100,
ScoreType = "Orchestral"
};
db.SheetMusic.Add(sheetMusic);
db.SaveChanges();
db.Database.Connection.Close();
}
}
public void InsertPositionsHeldRecord()
{
using (var db = new MusicClassesContext())
{
string positionName = "Violin Tutor";
var positionHeld = new PositionsHeld()
{
PositionName = positionName
};
db.PositionsHeld.Add(positionHeld);
db.SaveChanges();
db.Database.Connection.Close();
}
}
public void InsertPersonRecord()
{
using (var db = new MusicClassesContext())
{
var ensembleID = (from e in db.Ensemble
where e.EnsembleName == "Beginners Ensemble"
select e.EnsembleId).FirstOrDefault();
var addressId = (from a in db.Address
where a.StreetAddress == "101 Tramway Road"
&& a.Suburb == "Chesapeake Bay"
&& a.TownOrCity == "Dunedin"
&& a.PostCode == 9012
&& a.LandlinePhone == "034567890"
select a.AddressId).First();
var addressId2 = (from a in db.Address
where a.StreetAddress == "25 Mystery Street"
&& a.Suburb == "Enigma"
&& a.TownOrCity == "Dunedin"
&& a.PostCode == 9012
&& a.LandlinePhone == "034789012"
select a.AddressId).First();
var person = new Person
{
FirstName = "Bob",
LastName = "Brown",
EmailAddress = "*****@*****.**",
MobileNumber = "0271234567",
AddressAddressId = addressId,
EnsembleEnsembleId = ensembleID
};
//parent (father) of Bob Brown
var person2 = new Person
{
FirstName = "Bob",
LastName = "Brown Sr",
EmailAddress = "*****@*****.**",
MobileNumber = "0271234578",
AddressAddressId = addressId,
EnsembleEnsembleId = ensembleID
};
//parent (mother) of Bob Brown
var person3 = new Person
{
FirstName = "Christina",
LastName = "Brown",
EmailAddress = "*****@*****.**",
MobileNumber = "0271029384",
AddressAddressId = addressId,
EnsembleEnsembleId = ensembleID
};
var person4 = new Person
{
FirstName = "John",
LastName = "Doe",
EmailAddress = "*****@*****.**",
MobileNumber = "0275647382",
AddressAddressId = addressId2,
EnsembleEnsembleId = ensembleID
};
db.Person.Add(person);
db.Person.Add(person2);
db.Person.Add(person3);
db.Person.Add(person4);
db.SaveChanges();
db.Database.Connection.Close();
}
}
public void InsertPerformanceRecord()
{
using (var db = new MusicClassesContext())
{
string performanceName = "Orchestra of Wonder - One Night Only";
DateTime performanceDate = new DateTime(2013, 11, 23);
TimeSpan startTime = new DateTime(2013, 11, 23, 18, 0, 0).TimeOfDay;
TimeSpan finishTime = new DateTime(2013, 11, 23, 19, 30, 0).TimeOfDay;
int locationId = (from l in db.Location
where l.LocationName == "Symfony Orchestra Hall"
select l.LocationId).First();
var performance = new Performance()
{
PerformanceName = performanceName,
PerformanceDate = performanceDate,
StartTime = startTime,
FinishTime = finishTime,
LocationLocationId = locationId,
Location = (from l in db.Location
where l.LocationId == locationId
select l).First()
};
db.Performance.Add(performance);
db.SaveChanges();
db.Database.Connection.Close();
}
}
public void InsertLocationRecord()
{
using (var db = new MusicClassesContext())
{
string locationName = "Symfony Orchestra Hall";
var location = new Location()
{
LocationName = locationName
};
db.Location.Add(location);
db.SaveChanges();
db.Database.Connection.Close();
}
}
public void InsertLessonRecord()
{
using (var db = new MusicClassesContext())
{
int tutorID = (from t in db.Tutor
where t.PersonPersonId == ((from p in db.Person
where p.FirstName == "John" && p.LastName == "Doe"
select p.PersonId)).FirstOrDefault()
select t.TutorId).FirstOrDefault();
int personID = (from p in db.Person
where p.FirstName == "John" && p.LastName == "Doe"
select p.PersonId).FirstOrDefault();
var tutor = (from t in db.Tutor
where t.TutorId == tutorID
select t).FirstOrDefault();
var violinLesson = new Lesson()
{
LessonName = "Percussion",
Location = "Symfony Orchestra Hall",
Subject = "Percussion",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Percussion"
select i.InstrumentName).First(),
StudentFee = 50.00m,
OpenFee = 280.00m,
LessonDate = new DateTime (2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var recorderLesson = new Lesson()
{
LessonName = "Recorder",
Location = "Symfony Orchestra Hall",
Subject = "Recorder",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Recorder"
select i.InstrumentName).First(),
StudentFee = 40.00m,
OpenFee = 0.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var violaLesson = new Lesson()
{
LessonName = "Viola",
Location = "Symfony Orchestra Hall",
Subject = "Viola",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Viola"
select i.InstrumentName).First(),
StudentFee = 50.00m,
OpenFee = 210.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var celloLesson = new Lesson()
{
LessonName = "Cello",
Location = "Symfony Orchestra Hall",
Subject = "Cello",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Cello"
select i.InstrumentName).First(),
StudentFee = 50.00m,
OpenFee = 240.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var doubleBassLesson = new Lesson()
{
LessonName = "Double Bass",
Location = "Symfony Orchestra Hall",
Subject = "Double Bass",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Double Bass"
select i.InstrumentName).First(),
StudentFee = 50.00m,
OpenFee = 240.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var fluteLesson = new Lesson()
{
LessonName = "Flute",
Location = "Symfony Orchestra Hall",
Subject = "Flute",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Flute"
select i.InstrumentName).First(),
StudentFee = 50.00m,
OpenFee = 240.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var clarinetLesson = new Lesson()
{
LessonName = "Clarinet",
Location = "Symfony Orchestra Hall",
Subject = "Clarinet",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Clarinet"
select i.InstrumentName).First(),
StudentFee = 50.00m,
OpenFee = 210.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var oboeLesson = new Lesson()
{
LessonName = "Oboe",
Location = "Symfony Orchestra Hall",
Subject = "Oboe",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Oboe"
select i.InstrumentName).First(),
StudentFee = 50.00m,
OpenFee = 300.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var bassoonLesson = new Lesson()
{
LessonName = "Bassoon",
Location = "Symfony Orchestra Hall",
Subject = "Bassoon",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Bassoon"
select i.InstrumentName).First(),
StudentFee = 50.00m,
OpenFee = 300.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var otherWoodwindLesson = new Lesson()
{
LessonName = "Other Woodwind",
Location = "Symfony Orchestra Hall",
Subject = "Other Woodwind",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Other Woodwind"
select i.InstrumentName).First(),
StudentFee = 50.00m,
OpenFee = 300.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var trumpetLesson = new Lesson()
{
LessonName = "Trumpet",
Location = "Symfony Orchestra Hall",
Subject = "Trumpet",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Trumpet"
select i.InstrumentName).First(),
StudentFee = 50.00m,
OpenFee = 210.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var tromboneLesson = new Lesson()
{
LessonName = "Trombone",
Location = "Symfony Orchestra Hall",
Subject = "Trombone",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Trombone"
select i.InstrumentName).First(),
StudentFee = 50.00m,
OpenFee = 240.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var frenchHornLesson = new Lesson()
{
LessonName = "French Horn",
Location = "Symfony Orchestra Hall",
Subject = "Trombone",
Instrument = (from i in db.Instrument
where i.InstrumentName == "French Horn"
select i.InstrumentName).First(),
StudentFee = 50.00m,
OpenFee = 240.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var tubaLesson = new Lesson()
{
LessonName = "Tuba",
Location = "Symfony Orchestra Hall",
Subject = "Tuba",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Tuba"
select i.InstrumentName).First(),
StudentFee = 50.00m,
OpenFee = 280.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var otherBrassLesson = new Lesson()
{
LessonName = "Other Brass",
Location = "Symfony Orchestra Hall",
Subject = "Other Brass",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Other Brass"
select i.InstrumentName).First(),
StudentFee = 50.00m,
OpenFee = 240.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var vocalTechniqueLesson = new Lesson()
{
LessonName = "Vocal Technique",
Location = "Symfony Orchestra Hall",
Subject = "Vocal Technique",
Instrument = (from i in db.Instrument
where i.InstrumentName == "Vocal Technique"
select i.InstrumentName).First(),
StudentFee = 80.00m,
OpenFee = 300.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
var musicTheoryLesson = new Lesson()
{
LessonName = "Music Theory",
Location = "Symfony Orchestra Hall",
Subject = "Music Theory",
Instrument = null,
StudentFee = 80.00m,
OpenFee = 300.00m,
LessonDate = new DateTime(2013, 10, 19),
StartTime = new DateTime(2013, 10, 19, 08, 30, 0, DateTimeKind.Local),
FinishTime = new DateTime(2013, 10, 19, 09, 0, 0, DateTimeKind.Local),
TutorTutorId = tutorID,
Tutor = tutor
};
db.Lesson.Add(violinLesson);
db.Lesson.Add(recorderLesson);
db.Lesson.Add(violaLesson);
db.Lesson.Add(celloLesson);
db.Lesson.Add(doubleBassLesson);
db.Lesson.Add(fluteLesson);
db.Lesson.Add(oboeLesson);
db.Lesson.Add(bassoonLesson);
db.Lesson.Add(otherWoodwindLesson);
db.Lesson.Add(trumpetLesson);
db.Lesson.Add(tromboneLesson);
db.Lesson.Add(frenchHornLesson);
db.Lesson.Add(tubaLesson);
db.Lesson.Add(otherBrassLesson);
db.Lesson.Add(vocalTechniqueLesson);
db.Lesson.Add(musicTheoryLesson);
db.SaveChanges();
db.Database.Connection.Close();
}
}
private void showStudentsBtn_Click(object sender, EventArgs e)
{
using (var db = new MusicClassesContext())
{
////////////////////////////////////////////////////////////////////
// The query which retrieves appropriate student records, namely: //
// //
// - Student's first name //
// - Student's last name //
// - The student's age //
// - The student's suburb and town/city details //
// - The name of the lesson the student is taking //
// - The name of the instrument the student is learning //
// - The amount of lesson fees the student owes //
// - The amount of instrument fees the student owes //
// - The total amount of fees the student owes //
////////////////////////////////////////////////////////////////////
var studentRecordsQuery = from p in db.Person
join s in db.Student on p.PersonId equals s.PersonPersonId
join sl in db.StudentLesson on s.StudentId equals sl.StudentStudentId
join l in db.Lesson on sl.LessonLessonId equals l.LessonId
join a in db.Address on p.AddressAddressId equals a.AddressId
join i in db.Instrument on s.InstrumentInstrumentId equals i.InstrumentId
select new
{
s.StudentId,
p.FirstName,
p.LastName,
s.Age,
a.Suburb,
a.TownOrCity,
l.LessonName,
i.InstrumentName,
s.LessonFeesOwed,
s.InstrumentFeesOwed,
TotalFeesOwed = s.LessonFeesOwed + s.InstrumentFeesOwed
};
DataGridViewRow rw = new DataGridViewRow();
studentRecordsView.Rows.Clear();
rw.CreateCells(studentRecordsView);
foreach (var s in studentRecordsQuery)
{
rw.Cells[0].Value = s.StudentId;
rw.Cells[1].Value = s.FirstName;
rw.Cells[2].Value = s.LastName;
rw.Cells[3].Value = s.Age;
rw.Cells[4].Value = s.Suburb;
rw.Cells[5].Value = s.TownOrCity;
rw.Cells[6].Value = s.LessonName;
rw.Cells[7].Value = s.InstrumentName;
rw.Cells[8].Value = s.LessonFeesOwed;
rw.Cells[9].Value = s.InstrumentFeesOwed;
rw.Cells[10].Value = s.TotalFeesOwed;
}
studentRecordsView.Rows.Add(rw);
}
}
public void InsertTutorPositionsHeldRecord()
{
using (var db = new MusicClassesContext())
{
int tutorId = (from t in db.Tutor
where t.PersonPersonId ==
(from p in db.Person
where p.FirstName == "John" && p.LastName == "Doe"
select p.PersonId).FirstOrDefault()
select t.TutorId).FirstOrDefault();
int positionId = (from p in db.PositionsHeld
where p.PositionName == "Violin Tutor"
select p.PositionId).First();
var tutorPositionsHeld = new TutorPositionsHeld()
{
PositionsHeldPositionId = positionId,
TutorTutorId = tutorId,
PositionsHeld = (from p in db.PositionsHeld
where p.PositionId == positionId
select p).First(),
Tutor = (from t in db.Tutor
where t.TutorId == tutorId
select t).First()
};
db.TutorPositionsHeld.Add(tutorPositionsHeld);
db.SaveChanges();
db.Database.Connection.Close();
}
}
public void InsertPerformanceSheetMusicRecord()
{
using (var db = new MusicClassesContext())
{
int performanceId = (from p in db.Performance
where p.PerformanceName == "Orchestra of Wonder - One Night Only"
select p.PerformanceId).First();
int sheetMusicId = (from s in db.SheetMusic
where s.Title == "Bohemian Rhapsody"
select s.SheetMusicId).First();
var performanceSheetMusic = new PerformanceSheetMusic()
{
PerformancePerformanceId = performanceId,
SheetMusicSheetMusicId = sheetMusicId
};
db.PerformanceSheetMusic.Add(performanceSheetMusic);
db.SaveChanges();
db.Database.Connection.Close();
}
}
public void InsertTutorRecord()
{
using (var db = new MusicClassesContext())
{
int personID = (from p in db.Person
where p.FirstName == "John" && p.LastName == "Doe"
select p.PersonId).First();
var tutor = new Tutor()
{
PersonPersonId = personID,
Person = (from p in db.Person
where p.PersonId == personID
select p).First()
};
db.Tutor.Add(tutor);
db.SaveChanges();
db.Database.Connection.Close();
}
}
/**
* <summary>
* This click handler is responsible for adding and updating Student records
* - and also creating records for associated entities
* </summary>
*/
private void submitUpdateBtn_Click(object sender, EventArgs e)
{
formUtilities.checkFieldNullLengths(firstNameField, formErrors, "First Name");
formUtilities.checkFieldNullLengths(lastNameField, formErrors, "Last Name");
formUtilities.ageFieldCheck(ageField, formErrors);
formUtilities.checkFieldNullLengths(streetAddressField, formErrors, "Street Address");
formUtilities.checkFieldNullLengths(suburbField, formErrors, "Suburb");
formUtilities.postCodeFieldCheck(postCodeField, formErrors);
formUtilities.checkFieldNullLengths(studentTownOrCityField, formErrors, "Town or City");
formUtilities.landlineNumberValidation(landlinePhoneField, formErrors);
formUtilities.mobileNumberValidation(mobilePhoneField, formErrors);
formUtilities.validateEmailField(emailAddressField, formErrors);
formUtilities.checkDropdownBox(lessonDropdownBox, formErrors, "Lesson");
formUtilities.checkDropdownBox(instrumentDropdownBox, formErrors, "Instrument");
formUtilities.checkListBox(sheetMusicListBox, formErrors, "Sheet Music");
formUtilities.checkDropdownBox(ensembleDropdownBox, formErrors, "Ensemble");
formUtilities.lessonFeesFieldCheck(lessonFeesOwedField, formErrors);
formUtilities.instrumentFeesFieldCheck(instrumentFeesOwedField, formErrors);
formUtilities.totalFeesFieldCheck(totalFeesOwedField, formErrors);
if (formErrors.ToString().Length != 0)
{
MessageBox.Show(formErrors.ToString());
//Setting the error message string back to zero length,
//so continuous submit attempts don't keep appending
//subsequent error messages.
formErrors = new StringBuilder();
}
else
{
using (var db = new MusicClassesContext())
{
//Creating new Address object - using the appropriate form inputs
//from the Student Records pane.
var address = new Address()
{
StreetAddress = streetAddressField.Text.ToString(),
Suburb = suburbField.Text.ToString(),
TownOrCity = studentTownOrCityField.Text.ToString(),
PostCode = int.Parse(postCodeField.Text.ToString()),
LandlinePhone = landlinePhoneField.Text.ToString()
};
//Add the new Address object to the database
db.Address.Add(address);
//Save the changes that have just been made - after the
//new Address object has been created and added
db.SaveChanges();
//Close the current conenction to the database, so
//other functions and record additions can be executed.
db.Database.Connection.Close();
//Creating new Person object - using the appropriate form inputs
//from the Student Records pane.
var person = new Person()
{
FirstName = firstNameField.Text,
LastName = lastNameField.Text,
EmailAddress = emailAddressField.Text,
MobileNumber = mobilePhoneField.Text,
//A LINQ query, which obtains the Id for the Ensemble chosen by the user -
//determined by the Ensemble name selected form the Student records pane.
EnsembleEnsembleId = (from ensemble in db.Ensemble
where ensemble.EnsembleName == ensembleDropdownBox.Text
select ensemble.EnsembleId).FirstOrDefault(),
//A LINQ query to obtain the Id of the Address record (of the current Student
//being added) that was just added.
AddressAddressId = (from a in db.Address
where a.StreetAddress == address.StreetAddress
&& a.Suburb == address.Suburb
&& a.TownOrCity == address.TownOrCity
&& a.PostCode == address.PostCode
&& a.LandlinePhone == address.LandlinePhone
select a.AddressId).FirstOrDefault(),
//A LINQ query to obtain the Ensemble object required for reverse navigation
//- using the Ensemble selected by the user.
Ensemble = (from en in db.Ensemble
where en.EnsembleId == (from ensemble in db.Ensemble
where ensemble.EnsembleName == ensembleDropdownBox.Text
select ensemble.EnsembleId).FirstOrDefault()
select en).First(),
//A LINQ query to create the Address object required for reverse navigation
//- using the Address record created by the user earlier.
Address = (from ad in db.Address
where ad.AddressId == (from a in db.Address
where a.StreetAddress == address.StreetAddress
&& a.Suburb == address.Suburb
&& a.TownOrCity == address.TownOrCity
&& a.PostCode == address.PostCode
&& a.LandlinePhone == address.LandlinePhone
select a.AddressId).FirstOrDefault()
select ad).FirstOrDefault()
};
//Add the new Person object to the database
db.Person.Add(person);
//Save the changes that have been made - by the new record being added.
db.SaveChanges();
//Close the connection to the database, so other methods and functions can
//use the connection.
db.Database.Connection.Close();
//Creating a new Student record - with the necessary Person record
//created earlier.
string instrumentName = instrumentDropdownBox.Text.ToString();
var student = new Student()
{
//Converting the input for Age into a short
Age = short.Parse(ageField.Text.ToString()),
//Converting the inout for Lesson Fees Owed into decimal format
LessonFeesOwed = Convert.ToDecimal(lessonFeesOwedField.Text.ToString()),
//Converting the inout for Instrument Fees Owed into decimal format
InstrumentFeesOwed = Convert.ToDecimal(instrumentFeesOwedField.Text.ToString()),
//A LINQ query to obtain the associated InstrumentId with the Instrument
//selected by the user from the interface.
InstrumentInstrumentId = (from i in db.Instrument
where i.InstrumentName == instrumentName
select i.InstrumentId).FirstOrDefault(),
//Associating the Person record, created for the new Student, with the current Student object
//being constructed.
PersonPersonId = person.PersonId,
Instrument = (from i in db.Instrument
where i.InstrumentId == (from inst in db.Instrument
where inst.InstrumentName == instrumentDropdownBox.Text
select inst.InstrumentId).FirstOrDefault()
select i).FirstOrDefault(),
//A LINQ query to obtain the Person object required for reverse navigation
//- using the Person object created for the Student earlier.
Person = (from p in db.Person
where p.PersonId == person.PersonId
select p).FirstOrDefault()
};
//Add the student to the database
db.Student.Add(student);
//Save the changes made to the database - made by the addition of the Student record.
db.SaveChanges();
//Close the current connection to the database, so other record creations and method/function/
//handler calls can use the connection.
db.Database.Connection.Close();
//Creating the many-many record that relates Students with Lessons -
//(Yes, I only found out on 17/10/2013 I could have done this better
//with the Fluent API.
var studentLesson = new StudentLesson()
{
//Obtaining the StudentId from the Student object created earlier.
StudentStudentId = student.StudentId,
//Obtaining the LessonId from the Lesson the user selected form the
//interface.
LessonLessonId = (from l in db.Lesson
where l.LessonName == lessonDropdownBox.Text
select l.LessonId).FirstOrDefault(),
//Obtaining the Lesson object required for reverse navigation.
Lesson = (from l in db.Lesson
where l.LessonId == (from le in db.Lesson
where le.LessonName == lessonDropdownBox.Text
select le.LessonId).FirstOrDefault()
select l).FirstOrDefault(),
//Obtaining the Student object required for reverse navigation.
Student = student
};
//Add the student record to the database.
db.StudentLesson.Add(studentLesson);
//Save the changes that have just been made to the database.
db.SaveChanges();
//Close the connection so other method/function/handler calls
//can use the connection.
db.Database.Connection.Close();
string[] sheetMusicRecords = new string[sheetMusicListBox.SelectedItems.Count];
sheetMusicListBox.SelectedItems.CopyTo(sheetMusicRecords, 0);
//Creating the many-many object that links Students
//with SheetMusic records.
foreach (string smc in sheetMusicRecords)
{
var studentSheetMusic = new StudentSheetMusic()
{
//Obtaining the StudentId from the Student object created earlier.
StudentStudentId = student.StudentId,
//Obtaining the SheetMusicId from the SheetMusic item object
//selected by the user.
SheetMusicSheetMusicId = (from s in db.SheetMusic
where s.Title == smc
select s.SheetMusicId).FirstOrDefault(),
//Obtaining the Student object required for reverse navigation.
Student = student,
//Obtaining the SheetMusic object required for reverse navigation,
//obtained from the SheetMusic item selected by the user,
SheetMusic = (from sm in db.SheetMusic
where sm.SheetMusicId == (from s in db.SheetMusic
where s.Title == smc
select s.SheetMusicId).FirstOrDefault()
select sm).FirstOrDefault()
};
//Add the StudentSheetMusic record to the database.
db.StudentSheetMusic.Add(studentSheetMusic);
//Save the changes made to the database.
db.SaveChanges();
}
//Close the connection
db.Database.Connection.Close();
}
}
}
