public IHttpActionResult Put()
{
try
{
using (MusicFileEntities entites = new MusicFileEntities())
{
Models.MusicFileJson musicFile =
new Models.MusicFileJson(Request.Content.ReadAsStringAsync().Result);
// check if the genre is valid
if (!(musicFile.Genre == "Pop" || musicFile.Genre == "Rock" || musicFile.Genre == "Dance" ||
musicFile.Genre == "Latin"))
{
return(Ok("Not a correct genre"));
}
var join = (from m in entites.MusicFile
join title in entites.Title
on m.Title equals title.ID
select new
{
ID = m.ID, Title = new Models.TitleDTO {
ID = title.ID, Name = title.NAME
},
Interpret = m.Interpret, Genre = title.Genre
});
// check if the interpret already exists in the database
var preInterpret = entites.Interpret.FirstOrDefault(i => i.NAME == musicFile.Interpret.Name);
Models.InterpretDTO createdInterpret = new Models.InterpretDTO {
ID = 0, Name = ""
};
if (preInterpret != null)
{
createdInterpret.ID = preInterpret.ID;
createdInterpret.Name = preInterpret.NAME;
// check if the interpret already has a title named like the musicfile
var tempTitle = join.FirstOrDefault(m =>
m.Interpret == createdInterpret.ID && m.Title.Name == musicFile.Title.Name &&
m.Title.ID != musicFile.Title.ID);
if (tempTitle != null)
{
return(Ok("The interpret " + createdInterpret.Name + " has already a title named like " +
musicFile.Title.Name));
}
}
else
{
//create new interpret
MusicFileDataAccess.Interpret interpret = new MusicFileDataAccess.Interpret();
interpret.NAME = musicFile.Interpret.Name;
entites.Interpret.Add(interpret);
entites.SaveChanges();
// after the creation get the newly id of the interpret
createdInterpret = entites.Interpret.Select(i => new Models.InterpretDTO()
{
ID = i.ID,
Name = i.NAME
}).SingleOrDefault(i => i.Name == musicFile.Interpret.Name);
}
var existingTitle = entites.Title.FirstOrDefault(t => t.ID == musicFile.Title.ID);
if (existingTitle != null)
{
existingTitle.NAME = musicFile.Title.Name;
existingTitle.Genre = musicFile.Genre;
entites.SaveChanges();
var existingMusicFile = entites.MusicFile.FirstOrDefault(m => m.ID == musicFile.ID);
if (existingMusicFile != null)
{
existingMusicFile.Interpret = createdInterpret.ID;
entites.SaveChanges();
}
else
{
return(NotFound());
}
}
else
{
return(NotFound());
}
return(Ok("Successfully updated!"));
}
}
catch (Exception ex)
{
return(BadRequest());
}
}
public IHttpActionResult Post()
{
try
{
using (MusicFileEntities entites = new MusicFileEntities())
{
Models.MusicFileJson musicFile =
new Models.MusicFileJson(Request.Content.ReadAsStringAsync().Result);
// check if the genre is valid
if (!(musicFile.Genre == "Pop" || musicFile.Genre == "Rock" || musicFile.Genre == "Dance" ||
musicFile.Genre == "Latin"))
{
return(Ok("Not a correct genre"));
}
//System.Diagnostics.Debug.WriteLine(musicFile.Title.Name);
var join = (from m in entites.MusicFile
join title in entites.Title
on m.Title equals title.ID
select new
{
ID = m.ID, Title = new Models.TitleDTO {
ID = title.ID, Name = title.NAME
},
Interpret = m.Interpret, Genre = title.Genre
});
// check if the title is already in the database
var element = join.FirstOrDefault(m =>
m.Title.Name == musicFile.Title.Name && m.Interpret == musicFile.Interpret.ID);
if (element == null)
{
//First Create the title
MusicFileDataAccess.Title title = new MusicFileDataAccess.Title();
title.NAME = musicFile.Title.Name;
title.Genre = musicFile.Genre;
entites.Title.Add(title);
entites.SaveChanges();
// get the Title ID
Models.TitleDTO createdTitle = entites.Title.Select(i => new Models.TitleDTO()
{
ID = i.ID,
Name = i.NAME
}).OrderByDescending(t => t.ID).FirstOrDefault(i => i.Name == musicFile.Title.Name);
System.Diagnostics.Debug.WriteLine(createdTitle.ID);
// if the interpret is not in the database, create a new interpret
var existingInterpret =
entites.Interpret.FirstOrDefault(i => i.NAME == musicFile.Interpret.Name);
Models.InterpretDTO createdInterpret = new Models.InterpretDTO
{
ID = musicFile.Interpret.ID, Name = musicFile.Interpret.Name
};
if (existingInterpret == null)
{
MusicFileDataAccess.Interpret interpret = new MusicFileDataAccess.Interpret();
interpret.NAME = musicFile.Interpret.Name;
entites.Interpret.Add(interpret);
entites.SaveChanges();
// after the creation get the newly id of the interpret
createdInterpret = entites.Interpret.Select(i => new Models.InterpretDTO()
{
ID = i.ID,
Name = i.NAME
}).SingleOrDefault(i => i.Name == musicFile.Interpret.Name);
}
System.Diagnostics.Debug.WriteLine(createdTitle.ID);
//in the last step create the music file
MusicFileDataAccess.MusicFile createdMusicFile = new MusicFileDataAccess.MusicFile();
createdMusicFile.Title = createdTitle.ID;
createdMusicFile.Interpret = createdInterpret.ID;
entites.MusicFile.Add(createdMusicFile);
entites.SaveChanges();
// return success message
return(Ok("Music file successfully created!"));
}
else
{
return(Ok("Element is already in the database"));
}
}
}
catch (Exception ex)
{
return(BadRequest());
}
}