/// <summary>
/// Binds the model value to an entity by using the specified controller context and binding context.
/// </summary>
/// <returns>
/// The bound value.
/// </returns>
/// <param name = "controllerContext">The controller context.</param>
/// <param name = "bindingContext">The binding context.</param>
public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
{
var modelType = bindingContext.ModelType;
// Will look for the entity Id either named "ModelName" or "ModelName.Id"
var valueProviderResult =
bindingContext.ValueProvider.GetValue(bindingContext.ModelName) ??
bindingContext.ValueProvider.GetValue(bindingContext.ModelName + ".Id");
if (valueProviderResult == null)
{
return(base.BindModel(controllerContext, bindingContext));
}
string rawId = (valueProviderResult.RawValue as string[]).First();
if (string.IsNullOrEmpty(rawId))
{
return(null);
}
try {
var typedId = Convert.ChangeType(rawId, typeof(int));
return(EntityRetriever.GetEntityFor(modelType, typedId, typeof(int)));
}
catch (Exception) {
// If the Id conversion failed for any reason, just return null
return(null);
}
}
/// <summary>
/// Binds the model to a value by using the specified controller context and binding context.
/// </summary>
/// <returns>
/// The bound value.
/// </returns>
/// <param name = "controllerContext">The controller context.</param>
/// <param name = "bindingContext">The binding context.</param>
public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
{
var collectionType = bindingContext.ModelType;
var collectionEntityType = collectionType.GetGenericArguments().First();
var valueProviderResult = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);
if (valueProviderResult == null)
{
return(base.BindModel(controllerContext, bindingContext));
}
var rawValue = valueProviderResult.RawValue as string[];
var countOfEntityIds = rawValue.Length;
var entities = Array.CreateInstance(collectionEntityType, countOfEntityIds);
for (var i = 0; i < countOfEntityIds; i++)
{
string rawId = rawValue[i];
if (string.IsNullOrEmpty(rawId))
{
return(null);
}
object typedId = Convert.ChangeType(rawId, typeof(int));
object entity = EntityRetriever.GetEntityFor(collectionEntityType, typedId, typeof(int));
entities.SetValue(entity, i);
}
return(entities);
}