public ActionResult Banner()
{
if (ConstantContext.GetConstant("Главная: показывать баннер") == "0")
{
return(null);
}
int filesCount = (new System.IO.DirectoryInfo(Server.MapPath(@"/Content/UserFiles/Images/Banner/Top"))).GetFiles().Length;
if (filesCount == 0)
{
return(null);
}
using (EFBannerLinkContext bannerLinkContext = new EFBannerLinkContext())
{
Random r = new Random();
int f = r.Next(1, filesCount + 1);
BannerLink model = bannerLinkContext.BannerLinks.FirstOrDefault(b => b.NumSlide == f);
if (model == null)
{
return(null);
}
else
{
return(PartialView("_BannerTop", model));
}
}
}
public async Task BannerDelete([Bind(Prefix = "m")] BannerLink bannerLink)
{
using (EFBannerLinkContext bannerLinkContext = new EFBannerLinkContext())
{
if (Request.IsAjaxRequest())
{
await bannerLinkContext.DeleteBannerLinkAsync(bannerLink.Id);
}
}
}
public async Task BannerSave([Bind(Prefix = "m")] BannerLink bannerLink)
{
using (EFBannerLinkContext bannerLinkContext = new EFBannerLinkContext())
{
if (ModelState.IsValid && Request.IsAjaxRequest())
{
await bannerLinkContext.SaveBannerLinkAsync(bannerLink);
}
}
}
/// <summary>
/// Удаление
/// </summary>
/// <param name="bannerLinkId"></param>
/// <returns></returns>
public async Task DeleteBannerLinkAsync(Guid bannerLinkId)
{
BannerLink forDelete = await context.BannerLinks.FindAsync(bannerLinkId);
if (forDelete != null)
{
context.BannerLinks.Remove(forDelete);
}
await context.SaveChangesAsync();
}
/// <summary>
/// Сохранение
/// </summary>
/// <param name="bannerLink"></param>
/// <returns></returns>
public async Task SaveBannerLinkAsync(BannerLink bannerLink)
{
if (bannerLink.Id == Guid.Empty)
{
bannerLink.Id = Guid.NewGuid();
context.BannerLinks.Add(bannerLink);
}
else
{
BannerLink forChange = await context.BannerLinks.FindAsync(bannerLink.Id);
if (forChange != null)
{
forChange.NumSlide = bannerLink.NumSlide;
forChange.Link = bannerLink.Link;
}
}
await context.SaveChangesAsync();
}
