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@PNergard
Last active November 30, 2015 14:23
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using System.Collections.Generic;
using EPiServer.Core;
using EPiServer.Validation;
using EPiServer;
using AlloyDemoMVC.Models.Media;
namespace AlloyDemoMVC.Business
{
public class ImagePropertyValidator : IValidate<ContentData>
{
/// <summary>
/// Validation attribute that checks Imagefile properties for null.
/// </summary>
/// <param name="page"></param>
/// <returns></returns>
IEnumerable<ValidationError> IValidate<ContentData>.Validate(ContentData page)
{
string errorMessageTemplate = @"The file ""{0}"" is missing Copyright info!";
ValidationErrorSeverity severity = ValidationErrorSeverity.Warning;
List<ValidationError> errors = new List<ValidationError>();
PropertyDataCollection pageProperties = page.Property;
foreach (PropertyData propertyData in pageProperties)
{
//Built-in properties that we want to ignore
if (propertyData.OwnerTab == -1) continue;
//ContentArea
if (propertyData.PropertyValueType == typeof(ContentArea))
{
var contentArea = (ContentArea)propertyData.Value;
if (contentArea.Items != null)
{
foreach (var item in contentArea.Items)
{
var content = item.GetContent();
if (content as ImageFile != null)
{
if (string.IsNullOrEmpty(((ImageFile)content).Copyright))
{
errors.Add(
new ValidationError
{
ErrorMessage = string.Format(errorMessageTemplate, ((ImageFile)content).Name),
PropertyName = propertyData.Name,
Severity = severity
});
}
}
}
}
}
//ContentReference
else if (propertyData.PropertyValueType == typeof(ContentReference))
{
var reference = propertyData.Value as ContentReference;// page.GetValue(propertyData.Name) as ContentReference;
if (!ContentReference.IsNullOrEmpty(reference))
{
ImageFile file = null;
var locator = ServiceLocator.Current.GetInstance<IContentRepository>();
try
{
file = locator.Get<ImageFile>(reference);
}
catch (Exception)
{
file = null;
}
if (file != null)
{
if (string.IsNullOrEmpty(((ImageFile)file).Copyright))
{
errors.Add(
new ValidationError
{
ErrorMessage = string.Format(errorMessageTemplate, file.Name),
PropertyName = propertyData.Name,
Severity = severity
});
}
}
}
}
}
return errors;
}
}
}
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