protected string Render(string source, BlockModel blockModel)
{
string text;
ControllerBase controller;
BlocksController blocksController;
if (Helper != null)
{
controller = Helper.ViewContext.Controller;
blocksController = controller as BlocksController;
text = ViewData == null
? Helper.Partial(source, blockModel).ToString() // will use the "current" viewData
: Helper.Partial(source, blockModel, ViewData).ToString(); // uses our own local viewData
}
else if (ControllerContext != null)
{
controller = ControllerContext.Controller;
blocksController = controller as BlocksController;
if (!RunContext.IsTesting && blocksController == null)
{
throw new Exception("Oops.");
}
// this basically repeats what Controller.View is doing
var viewEngineResult = ViewEngines.Engines.FindView(ControllerContext, source, null);
if (viewEngineResult == null)
{
throw new Exception("Null ViewEngineResult.");
}
var view = viewEngineResult.View;
if (view == null)
{
// we need to generate an exception containing all the locations we searched
// copied over from ViewResult source code
var locationsText = new StringBuilder();
foreach (var location in viewEngineResult.SearchedLocations)
{
locationsText.AppendLine();
locationsText.Append(location);
}
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
"The view '{0}' or its master was not found or no view engine supports the searched locations. The following locations were searched:{1}", // MvcResources.Common_ViewNotFound
source, locationsText));
}
controller.ViewData.Model = blockModel;
using (var sw = new StringWriter())
{
var ctx = new ViewContext(ControllerContext, view,
controller.ViewData,
controller.TempData,
sw);
view.Render(ctx, sw);
text = sw.ToString();
}
}
else
{
throw new Exception("Oops.");
}
// propagate meta upwards
if (blockModel.HasMeta)
{
Meta = blockModel.Meta;
}
var traceBlocksInHtml = blocksController != null && blocksController.TraceBlocksInHtml;
return(!traceBlocksInHtml
? text
: string.Format("<!-- block:{0} -->{1}{2}{1}<!-- /block:{0} -->{1}",
source, Environment.NewLine, text));
}
/*
* public BlockModel(TContent content, RenderingBlock block)
* : base(content, block)
* {
* Content = content;
* }
*
* public BlockModel(TContent content, RenderingBlock block, CultureInfo culture)
* : base(content, block, culture)
* {
* Content = content;
* }
*/
public BlockModel(TContent content, BlockModel model)
: base(model.Content, model.Block, model.CurrentCulture)
{
_model = model;
Content = content;
}
protected string Render(BlockModel blockModel)
{
return(Render(Block.Source, blockModel));
}