private void ValidateExhibitPageArgs(ExhibitPageArgs2 args)
{
if (args == null)
{
return;
}
// constrain properties Image, Images and HideYearNumbers to their respective page types
if (args.Image != null && args.Type != PageType.Image_Page)
{
ModelState.AddModelError(nameof(args.Image),
ErrorMessages.FieldNotAllowedForPageType(nameof(args.Image), args.Type));
}
if (args.Images != null && args.Type != PageType.Slider_Page)
{
ModelState.AddModelError(nameof(args.Images),
ErrorMessages.FieldNotAllowedForPageType(nameof(args.Images), args.Type));
}
if (args.HideYearNumbers != null && args.Type != PageType.Slider_Page)
{
ModelState.AddModelError(nameof(args.HideYearNumbers),
ErrorMessages.FieldNotAllowedForPageType(nameof(args.HideYearNumbers), args.Type));
}
// validate font family
if (!_exhibitPagesConfig.Value.IsFontFamilyValid(args.FontFamily))
{
ModelState.AddModelError(nameof(args.FontFamily), $"Font family must be null/unspecified (which defaults to {_exhibitPagesConfig.Value.DefaultFontFamily}) or one of the following: {string.Join(", ", _exhibitPagesConfig.Value.FontFamilies)}");
}
// ensure referenced image exists
if (args.Image != null && !_mediaIndex.IsImage(args.Image.Value))
{
ModelState.AddModelError(nameof(args.Image),
ErrorMessages.ImageNotFound(args.Image.Value));
}
// ensure referenced audio exists
if (args.Audio != null && !_mediaIndex.IsAudio(args.Audio.Value))
{
ModelState.AddModelError(nameof(args.Audio),
ErrorMessages.AudioNotFound(args.Audio.Value));
}
// ensure referenced slider page images exist
if (args.Images != null)
{
var invalidIds = args.Images
.Select(img => img.Image)
.Where(id => !_mediaIndex.IsImage(id))
.ToList();
foreach (var id in invalidIds)
{
ModelState.AddModelError(nameof(args.Images),
ErrorMessages.ImageNotFound(id));
}
}
// ensure referenced additional info pages exist
if (args.AdditionalInformationPages != null)
{
var invalidIds = args.AdditionalInformationPages
.Where(id => !_entityIndex.Exists(ResourceType.ExhibitPage, id))
.ToList();
foreach (var id in invalidIds)
{
ModelState.AddModelError(nameof(args.AdditionalInformationPages),
ErrorMessages.ExhibitPageNotFound(id));
}
}
}