public async Task <IActionResult> OnGetAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
GirlLikes = await _context.GirlLikes
.Include(g => g.GirlPrefersNavigation)
.Include(g => g.Girls).FirstOrDefaultAsync(m => m.GirlId == id);
if (GirlLikes == null)
{
return(NotFound());
}
return(Page());
}
public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
GirlLikes = await _context.GirlLikes.FindAsync(id);
if (GirlLikes != null)
{
_context.GirlLikes.Remove(GirlLikes);
await _context.SaveChangesAsync();
}
return(RedirectToPage("./Index"));
}
public async Task <IActionResult> OnGetAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
GirlLikes = await _context.GirlLikes
.Include(g => g.GirlPrefersNavigation)
.Include(g => g.Girls).FirstOrDefaultAsync(m => m.GirlId == id);
if (GirlLikes == null)
{
return(NotFound());
}
ViewData["GirlPrefers"] = new SelectList(_context.Boy, "BoyId", "BoyId");
ViewData["GirlId"] = new SelectList(_context.Girl, "GirlId", "GirlId");
return(Page());
}
} //end of get
//public async Task<IActionResult> OnPostAsync(int? id)
public async Task <IActionResult> OnPostAsync(int?id, int[] PreferredBoys) //To Edit BoyPrefers data
{
if (!ModelState.IsValid)
{
return(Page());
}
var GirlToUpdate = await _context.Girl
// Boy = await _context.Boy
.Include(gl => gl.GirlLikes)
.FirstOrDefaultAsync(m => m.GirlId == id); //past compatibility
// _context.Attach(Boy).State = EntityState.Modified;
/*
* The instance of entity type 'Boy' cannot be tracked because another instance with the same key value for {'BoyId'} is already being tracked.
* When attaching existing entities, ensure that only one entity instance with a given key value is attached.
*
* Consider using 'DbContextOptionsBuilder.EnableSensitiveDataLogging' to see the conflicting key values.
*/
// _context.Attach(Boy).State = EntityState.Modified;
// _context.Attach(BoyToUpdate).State = EntityState.Modified;
// _context.Attach(Boy.BoyLikes).State = EntityState.Modified; //nsb 24-1-19
//err-runtime: The entity type 'HashSet<BoyLikes>' was not found.
// Though Err-message, data is saved?, No , ( Can ignore/bypass err-msg? )
// BoyToUpdate.BoyId = Boy.BoyId; // Optional, not reqd
// BoyToUpdate.Name = Boy.Name ; BoyToUpdate.MobileNum = Boy.MobileNum; //keep ok
//BoyToUpdate.BoyLikes
if (await TryUpdateModelAsync <Girl>(
GirlToUpdate, "Girl" //not Boy but "Boy" reqd. , All parent data saved/ updated. OK keep.
//, "Boy"
//, i => i.BoyId, i => i.Name, i => i.MobileNum
// , i => i.Boy.Name, i => i.Boy.MobileNum //OK but can be auto.
//,BoyToUpdate.Name = Boy.Name, BoyToUpdate.MobileNum = Boy.MobileNum
))
{
//Update BoyBoyLikes BoyPrefers data
if (PreferredBoys == null) //go back without doing anything.
{
return(Page());
}
// var PreferredGirlsHS = new HashSet<int>(PreferredGirls);
// int cnt = 0; // 1 //PreferredGirlsHS.count
/*
* foreach (var PGirl in PreferredGirls)
* {
* // BoyLikes.Find(1).BoyPrefers = PGirl;
* // BoyToUpdate.BoyLikes.Find(1).BoyPrefers = PGirl; //Err: 'ICollection<BoyLikes>' does not contain a definition for 'Find'
* //cnt++;
* }
*/
foreach (var item in GirlToUpdate.GirlLikes)
{
//if cnt > PreferredGirls.count()
// item.BoyPrefers = PreferredGirls[cnt];
// cnt++;
_context.GirlLikes.Remove(item);
}
foreach (var PBoy in PreferredBoys)
{
// BoyLikes.Find(1).BoyPrefers = PGirl;
// BoyToUpdate.BoyLikes.Find(1).BoyPrefers = PGirl; //Err: 'ICollection<BoyLikes>' does not contain a definition for 'Find'
//var author = new Author{ FirstName = "William", LastName = "Shakespeare" };
var gl = new GirlLikes();
gl.GirlId = Girl.GirlId; //id;
gl.GirlPrefers = PBoy;
//bl.BoyLikes.ID =
// BoyToUpdate.BoyLikes.add(new BoyLikes{BoyToUpdate.BoyId, PGirl}); //Err: 'ICollection<BoyLikes>' does not contain a definition for 'Find'
//BoyToUpdate.BoyLikes.add(bl); //err: 'ICollection<BoyLikes>' does not contain a definition for 'add'
// bLikesListv.Add(bl); // OK. WARNING .add instead of .Add wasted lot of time ! // Var never used !
_context.GirlLikes.Add(gl); //OK
// boySingleRelData.BoyLikesEnumerable.Add(bl); //err: 'IEnumerable<BoyLikes>' does not contain a definition for 'Add'
//cnt++;
//return NotFound("Test: PreferredGirls 1st val = " + bl.BoyPrefers ); //test
// await _context.SaveChangesAsync(); // Dt 7-2-19 Err: Duplicate entry '20' for key 'PRIMARY'
}
}
else //return NoContent();
//return NotFound();
{
}
await _context.SaveChangesAsync();
/*
* try
* {
* await _context.SaveChangesAsync();
* }
* catch (DbUpdateConcurrencyException)
* {
* if (!BoyExists(Boy.BoyId))
* {
* return NotFound();
* }
* else
* {
* throw;
* }
* }
*/
return(RedirectToPage("./Index"));
} //end of post
