I managed to get the captions by foreach
loop but now I'm facing a new problem.
I get duplicates in my database because of the nested loop, please check the code below.
JavaScript
window.onload = function () {
if (window.File && window.FileList && window.FileReader) {
var filesInput = document.getElementById("galleryFilesAdd");
filesInput.addEventListener("change", function (event) {
var files = event.target.files; //FileList object
var output = document.getElementById("result");
for (var i = 0; i < files.length; i++) {
var file = files[i];
if (!file.type.match('image'))
continue;
var picReader = new FileReader();
picReader.addEventListener("load", function (event) {
var picFile = event.target;
var div = document.createElement("div");
div.innerHTML = "<img class='thumbnail img-responsive' alt='" + picFile.name + "' + height='220' width='300'; src='" + picFile.result + "'" +
"title='" + picFile.name + "'/><button type='button' class='delete btn btn-default' class='remove_pic'> <span class='glyphicon glyphicon-remove' aria-hidden='true'></span></button><input type='text' id ='imagecaption[]' name='imagecaption[]' class='form-control' placeholder='Add Image Caption'>"
output.insertBefore(div, null);
div.children[1].addEventListener("click", function (event) {
div.parentNode.removeChild(div);
});
});
//Read the image
picReader.readAsDataURL(file);
}
});
}
else {
console.log("Your browser does not support File API");
}
}
Controller
public async Task<ActionResult> AddHotel(HotelViewModels.AddHotel viewModel, IEnumerable<HttpPostedFileBase> galleryFilesAdd)
{
try
{
if (ModelState.IsValid)
{
foreach (var files in galleryFilesAdd)
{
var fileName = Guid.NewGuid().ToString("N");
var extension = Path.GetExtension(files.FileName).ToLower();
string thumbpath, imagepath = "";
using (var img = Image.FromStream(files.InputStream))
{
foreach (var caption in viewModel.imagecaption)
{
var galleryImg = new hotel_gallery_image
{
hotel_id = hotel.id,
thumbPath = String.Format("/Resources/Images/Hotel/GalleryThumb/{0}{1}", fileName, extension),
imagePath = String.Format("/Resources/Images/Hotel/Gallery/{0}{1}", fileName, extension),
entry_datetime = DateTime.Now,
guid = Guid.NewGuid().ToString("N"),
enabled = true,
image_caption = caption
};
db.hotel_gallery_image.Add(galleryImg);
}
}
}
await db.SaveChangesAsync();
return RedirectToAction("Index", "Hotel");
}
}
catch (DbEntityValidationException ex)
{
string errorMessages = string.Join("; ", ex.EntityValidationErrors.SelectMany(x => x.ValidationErrors).Select(x => x.PropertyName + ": " + x.ErrorMessage));
throw new DbEntityValidationException(errorMessages);
}
viewModel.Country = await db.countries.ToListAsync();
return View(viewModel);
}
and viewModel
public string[] imagecaption { get; set; }
Inserted data into database
I think the problem is in your
image_caption = viewModel.imagecaption
because you iterate through var files in galleryFilesAdd
you use the reference to the same image_caption
from viewModel
on each iteration, so you need to filter your image_caption
depending on another data (fileName or another data which you viewmodel
contains).
UPDATE Ideally if you have same properties in your ViewModel and files(filename for example), then you could do something like thatimage_caption = viewModel.FirstOrDefault(x=>x.Filename == filename).imagecaption
In order to be more specific would be helpful if you provide code for your Viemodel
and galleryFilesAdd
classes.
UPDATE 2
In your case 2nd foreach you iterate through whole collection of imagecaption
array, on each iteration through galleryFilesAdd
collection, which cause double data in you database. If you can take your captions sequentially for the 1st file take the 1st element from imagecaption array and so on then you can use code like this:
if (ModelState.IsValid)
{
int index = 0;
foreach (var files in galleryFilesAdd)
{
var fileName = Guid.NewGuid().ToString("N");
var extension = Path.GetExtension(files.FileName).ToLower();
string thumbpath, imagepath = "";
using (var img = Image.FromStream(files.InputStream))
{
if(index < viewModel.imagecaption.Length){
var galleryImg = new hotel_gallery_image
{
hotel_id = hotel.id,
thumbPath = String.Format("/Resources/Images/Hotel/GalleryThumb/{0}{1}", fileName, extension),
imagePath = String.Format("/Resources/Images/Hotel/Gallery/{0}{1}", fileName, extension),
entry_datetime = DateTime.Now,
guid = Guid.NewGuid().ToString("N"),
enabled = true,
image_caption = viewModel.imagecaption[index]
};
db.hotel_gallery_image.Add(galleryImg);
index++;
}
}
}
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