public async Task <IActionResult> Edit(int id, [Bind("GalleryEntryID,ImageID")] GalleryEntry_Image galleryEntry_Image)
{
if (id != galleryEntry_Image.ImageID)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
_context.Update(galleryEntry_Image);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!GalleryEntry_ImageExists(galleryEntry_Image.ImageID))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction("Index"));
}
ViewData["GalleryEntryID"] = new SelectList(_context.GalleryEntries, "GalleryEntryID", "GalleryEntryID", galleryEntry_Image.GalleryEntryID);
ViewData["ImageID"] = new SelectList(_context.Images, "ImageID", "ImageID", galleryEntry_Image.ImageID);
return(View(galleryEntry_Image));
}
public async Task <IActionResult> Create([Bind("GalleryEntryID,ImageID")] GalleryEntry_Image galleryEntry_Image)
{
if (ModelState.IsValid)
{
_context.Add(galleryEntry_Image);
await _context.SaveChangesAsync();
return(RedirectToAction("Index"));
}
ViewData["GalleryEntryID"] = new SelectList(_context.GalleryEntries, "GalleryEntryID", "GalleryEntryID", galleryEntry_Image.GalleryEntryID);
ViewData["ImageID"] = new SelectList(_context.Images, "ImageID", "ImageID", galleryEntry_Image.ImageID);
return(View(galleryEntry_Image));
}
/// <summary>
/// Compute the thumbnail url for a particular gallery entry
/// </summary>
/// <param name="galleryEntry">The gallery entry whose thumbnail you want to compute
/// Note: The collection navigation property "Images" needs to be set on this GalleryEntry instance
/// </param>
/// <returns>A string which is the thumbnail as a URL</returns>
public string ComputeThumbnail(GalleryEntry galleryEntry)
{
if (galleryEntry.Images.Count() == 0)
{
// if this gallery entry has no images defined, return a random stock photo
return("/images/no-image.png");
// return "https://unsplash.it/g/200/300/?random";
}
else
{
// get first related entry in the associative many2many table
GalleryEntry_Image firstImage = galleryEntry.Images.First();
return(firstImage.Image.Url);
}
}
