public object ConvertValue(Type type, string value)
{
if (GuidUdi.TryParse(value, out var udi) == true && ContentTypeCacheHelper.TryGetAlias(udi.Guid, out var alias, _contentTypeService) == true)
{
return(_umbracoContextAccessor.UmbracoContext.Content.GetContentType(alias));
}
return(default);
public override object ConvertIntermediateToObject(IPublishedElement owner, IPublishedPropertyType propertyType, PropertyCacheLevel referenceCacheLevel, object inter, bool preview)
{
if (inter is IEnumerable <ContentBlock> items)
{
var elements = new List <IPublishedElement>();
foreach (var item in items)
{
if (item == null || item.ElementType.Equals(Guid.Empty))
{
continue;
}
// NOTE: [LK:2019-09-03] Why `IPublishedCache` doesn't support Guids or UDIs, I do not know!?
// Thought v8 was meant to be "GUID ALL THE THINGS!!1"? ¯\_(ツ)_/¯
if (ContentTypeCacheHelper.TryGetAlias(item.ElementType, out var alias, _contentTypeService) == false)
{
continue;
}
var contentType = _publishedSnapshotAccessor.PublishedSnapshot.Content.GetContentType(alias);
if (contentType == null || contentType.IsElement == false)
{
continue;
}
var properties = new List <IPublishedProperty>();
foreach (var thing in item.Value)
{
var propType = contentType.GetPropertyType(thing.Key);
if (propType != null)
{
properties.Add(new DetachedPublishedProperty(propType, owner, thing.Value, preview));
}
}
elements.Add(_publishedModelFactory.CreateModel(new DetachedPublishedElement(item.Key, contentType, properties)));
}
return(elements);
}
return(base.ConvertIntermediateToObject(owner, propertyType, referenceCacheLevel, inter, preview));
}
public HttpResponseMessage GetPreviewMarkup([FromBody] JObject item, int elementIndex, Guid elementKey, int contentId)
{
var preview = true;
var content = UmbracoContext.Content.GetById(true, contentId);
if (content == null)
{
_logger.Debug <ContentBlocksApiController>($"Unable to retrieve content for ID '{contentId}', it is most likely a new unsaved page.");
}
var element = default(IPublishedElement);
var block = item.ToObject <ContentBlock>();
if (block != null && block.ElementType.Equals(Guid.Empty) == false)
{
if (ContentTypeCacheHelper.TryGetAlias(block.ElementType, out var alias, Services.ContentTypeService) == true)
{
var contentType = UmbracoContext.PublishedSnapshot.Content.GetContentType(alias);
if (contentType != null && contentType.IsElement == true)
{
var properties = new List <IPublishedProperty>();
foreach (var thing in block.Value)
{
var propType = contentType.GetPropertyType(thing.Key);
if (propType != null)
{
properties.Add(new DetachedPublishedProperty(propType, null, thing.Value, preview));
}
}
element = _publishedModelFactory.CreateModel(new DetachedPublishedElement(block.Key, contentType, properties));
}
}
}
var viewData = new System.Web.Mvc.ViewDataDictionary(element)
{
{ nameof(content), content },
{ nameof(element), element },
{ nameof(elementIndex), elementIndex },
};
if (ContentTypeCacheHelper.TryGetIcon(content.ContentType.Alias, out var contentIcon, Services.ContentTypeService) == true)
{
viewData.Add(nameof(contentIcon), contentIcon);
}
if (ContentTypeCacheHelper.TryGetIcon(element.ContentType.Alias, out var elementIcon, Services.ContentTypeService) == true)
{
viewData.Add(nameof(elementIcon), elementIcon);
}
var markup = default(string);
try
{
markup = ContentBlocksViewHelper.RenderPartial(element.ContentType.Alias, viewData);
}
catch (InvalidCastException icex)
{
// NOTE: This type of exception happens on a new (unsaved) page, when the context becomes the parent page,
// and the preview view is strongly typed to the current page's model type.
markup = "<p class=\"text-center mt4\">Unable to render the preview until the page has been saved.</p>";
_logger.Error <ContentBlocksApiController>(icex, "Error rendering preview view.");
}
catch (Exception ex)
{
markup = $"<pre class=\"error\"><code>{ex}</code></pre>";
_logger.Error <ContentBlocksApiController>(ex, "Error rendering preview view.");
}
return(Request.CreateResponse(HttpStatusCode.OK, new { elementKey, markup }));
}