public async Task <IActionResult> Add(AddDestinationViewModel model)
{
if (!string.IsNullOrWhiteSpace(model.Name) && await destinationService.ExistsAsync(model.Name))
{
ModelState.AddModelError(nameof(model.Name),
"Destination with the same name already exists.");
}
var invalidIds = await tagService.CheckForInvalidTagIds(model.SelectedTags);
if (invalidIds.Any())
{
ModelState.AddModelError(nameof(model.SelectedTags),
$"Non-existing tags were selected. (Count: {invalidIds.Count})");
}
if (!await regionService.ExistsAsync(model.RegionId))
{
ModelState.AddModelError(nameof(model.RegionId), "Selected region does not exist.");
}
if (!ModelState.IsValid)
{
model.Tags = await GetTags();
model.Regions = await GetRegions();
return(View(model));
}
await destinationService.AddAsync(model.Name, model.RegionId, model.SelectedTags);
return(RedirectToAction(nameof(Add)));
}
public async Task <IActionResult> Add(AddArticleViewModel model)
{
if (!string.IsNullOrWhiteSpace(model.Title) && await articleService.ExistsAsync(model.Title))
{
ModelState.AddModelError(nameof(model.Title),
"Article with the same title already exists.");
}
if (!await destinationService.ExistsAsync(model.DestinationId))
{
ModelState.AddModelError(nameof(model.DestinationId), "Selected destination does not exist.");
}
if (!ModelState.IsValid)
{
model.Destinations = await GetDestinations();
return(View(model));
}
var authorId = userManager.GetUserId(User);
await articleService.AddAsync(
model.Title,
model.Content,
model.DestinationId,
authorId,
DateTime.UtcNow);
return(RedirectToAction(nameof(Add)));
}
public async Task <int> AddAsync(string title, string content, int destinationId, string authorId,
DateTime creationDate)
{
if (!await destinationService.ExistsAsync(destinationId))
{
return(0);
}
var author = await userManager.FindByIdAsync(authorId);
if (author == null)
{
return(0);
}
var article = new Article
{
Title = title,
Content = content,
CreationDate = creationDate,
AuthorId = authorId,
DestinationId = destinationId
};
await database.Articles.AddAsync(article);
await database.SaveChangesAsync();
return(article.Id);
}
public async Task <IActionResult> RemoveTag(RemoveTagRequestModel model)
{
if (!await destinationService.ExistsAsync(model.DestinationId))
{
TempData.AddErrorMessage("Destination does not exist.");
return(RedirectToAction(nameof(All)));
}
if (!await tagService.ExistsAsync(model.TagId))
{
TempData.AddErrorMessage("Destination does not exist.");
return(RedirectToAction(nameof(Details), new { id = model.DestinationId }));
}
if (!ModelState.IsValid)
{
TempData.AddErrorMessage("Invalid data.");
return(RedirectToAction(nameof(All)));
}
await destinationService.RemoveTagAsync(model.DestinationId, model.TagId);
TempData.AddSuccessMessage();
return(RedirectToAction(nameof(Details), new { id = model.DestinationId }));
}