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Sitefinity Dynamic Content Selector Field
/// <summary>
/// A simple field for displaying related dynamic content items in a drop-down menu.
/// Requirements:
/// * the name of the field must exactly match the name of the content type being displayed
/// * the content type must be within the same module as the content type using this field
/// </summary>
public class DynamicContentSelectorField : ChoiceField
{
/// <summary>
/// Defaults the rendering of the list as a drop-down menu
/// </summary>
/// <value>
/// The option for which to render choices.
/// </value>
public override RenderChoicesAs RenderChoicesAs
{
get { return RenderChoicesAs.DropDown; }
set { base.RenderChoicesAs = value; }
}
/// <summary>
/// Defaults the script descriptor to be ChoiceField so we don't have to reimplement the JavaScript for the field.
/// </summary>
/// <value>
/// The type of the script descriptor.
/// </value>
protected override string ScriptDescriptorType
{
get { return typeof(ChoiceField).FullName; }
}
/// <summary>
/// Default the type of the resource assembly to ChoiceField so we don't have to implement a new resource file
/// </summary>
protected override Type ResourcesAssemblyInfo
{
get { return typeof(ChoiceField); }
}
/// <summary>
/// Configures the specified definition.
/// </summary>
/// <param name="definition">The definition.</param>
public override void Configure(IFieldDefinition definition)
{
// retrieve Control Definition Name to parse dynamic type of the module
var controlDefinitionName = definition.ControlDefinitionName.Split('.');
if (controlDefinitionName == null || controlDefinitionName.Length == 0)
throw new NullReferenceException(string.Concat("Control Definition is empty or not found: ", definition.ControlDefinitionName));
// re-join array minus last item to get full dynamic module type
var moduleType = string.Join(".", controlDefinitionName.Take(controlDefinitionName.Length - 1));
// retrieve fieldname from definition to get the specified dynamic type
var fieldName = definition.FieldName;
if (string.IsNullOrEmpty(fieldName))
throw new NullReferenceException("Field name cannot be empty.");
// resolve the type, ensure it exists
Type contentType;
var dynamicModuleManager = DynamicModuleManager.GetManager();
moduleType = string.Concat(moduleType, ".", fieldName);
try
{
contentType = TypeResolutionService.ResolveType(moduleType);
}
catch (Exception ex)
{
throw new TypeLoadException(string.Concat(moduleType, " dynamic type not found."));
}
// retrieve published items and add to choice list
var myCollection = dynamicModuleManager.GetDataItems(contentType).Where(g => g.Status == ContentLifecycleStatus.Live);
foreach (var contentItem in myCollection)
{
var item = new ChoiceItem();
item.Text = contentItem.GetValue<string>("Name");
item.Value = contentItem.Id.ToString();
this.Choices.Add(item);
}
base.Configure(definition);
}
// GET: /Store/Browse/Genre
public ActionResult Browse(string Genre)
{
// get the matching genre
var genre = dynamicModuleManager.GetDataItems(StoreController.GenreType).Where(g => g.GetValue<string>("Name") == Genre && g.Status == ContentLifecycleStatus.Live).FirstOrDefault();
// retrieve album list
var albumList = new List<Album>();
var albums = dynamicModuleManager.GetDataItems(StoreController.AlbumType).Where(a => a.GetValue<Guid>("Genre") == genre.Id && a.Status == ContentLifecycleStatus.Live);
foreach (var album in albums)
albumList.Add(new Album(album));
// store genre name
ViewBag.Genre = Genre;
return View(albumList);
}
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