private async Task <IReadOnlyDictionary <int, IPageBlockTypeDisplayModel> > MapGeneric <TDataModel>(
IEnumerable <IEntityVersionPageBlock> pageBlocks,
PublishStatusQuery publishStatusQuery,
IExecutionContext executionContext
) where TDataModel : IPageBlockTypeDataModel
{
var mapperType = typeof(IPageBlockTypeDisplayModelMapper <TDataModel>);
var mapper = (IPageBlockTypeDisplayModelMapper <TDataModel>)_serviceProvider.GetService(mapperType);
if (mapper == null)
{
string msg = @"{0} does not implement IPageBlockDisplayModel and no custom mapper could be found. You must create
a class that implements IPageBlockDisplayModelMapper<{0}> if you are using a custom display model. Full type name: {1}";
throw new Exception(string.Format(msg, typeof(TDataModel).Name, typeof(TDataModel).FullName));
}
var dataModels = new List <PageBlockTypeDisplayModelMapperInput <TDataModel> >();
foreach (var pageBlock in pageBlocks)
{
var mapperModel = new PageBlockTypeDisplayModelMapperInput <TDataModel>();
mapperModel.DataModel = (TDataModel)_dbUnstructuredDataSerializer.Deserialize(pageBlock.SerializedData, typeof(TDataModel));
mapperModel.VersionBlockId = pageBlock.GetVersionBlockId();
dataModels.Add(mapperModel);
}
var context = new PageBlockTypeDisplayModelMapperContext <TDataModel>(dataModels, publishStatusQuery, executionContext);
var result = new PageBlockTypeDisplayModelMapperResult <TDataModel>(dataModels.Count);
await mapper.MapAsync(context, result);
return(result.Items);
}
private async Task <List <PageBlockTypeDisplayModelMapperOutput> > MapGeneric <T>(
IEnumerable <IEntityVersionPageBlock> pageBlocks,
PublishStatusQuery publishStatusQuery
) where T : IPageBlockTypeDataModel
{
var mapperType = typeof(IPageBlockTypeDisplayModelMapper <T>);
var mapper = (IPageBlockTypeDisplayModelMapper <T>)_serviceProvider.GetService(mapperType);
if (mapper == null)
{
string msg = @"{0} does not implement IPageBlockDisplayModel and no custom mapper could be found. You must create
a class that implements IPageBlockDisplayModelMapper<{0}> if you are using a custom display model. Full type name: {1}";
throw new Exception(string.Format(msg, typeof(T).Name, typeof(T).FullName));
}
var dataModels = new List <PageBlockTypeDisplayModelMapperInput <T> >();
foreach (var pageBlock in pageBlocks)
{
var mapperModel = new PageBlockTypeDisplayModelMapperInput <T>();
mapperModel.DataModel = (T)_dbUnstructuredDataSerializer.Deserialize(pageBlock.SerializedData, typeof(T));
mapperModel.VersionBlockId = pageBlock.GetVersionBlockId();
dataModels.Add(mapperModel);
}
var results = await mapper.MapAsync(dataModels, publishStatusQuery);
return(results.ToList());
}
/// <summary>
/// Adds a mapped model to the result collection.
/// </summary>
/// <param name="inputDataModel">
/// The input data model that the display model is mapped from. This is
/// used to track which block the mapped display model represents.
/// </param>
/// <param name="mappedDisplayModel">
/// The mapped display model to render in the view. This should not
/// be null; if the input cannot be mapped then exclude it from the
/// result entirely.
/// </param>
public void Add(PageBlockTypeDisplayModelMapperInput <TDataModel> inputDataModel, IPageBlockTypeDisplayModel mappedDisplayModel)
{
if (inputDataModel == null)
{
throw new ArgumentNullException(nameof(inputDataModel));
}
if (mappedDisplayModel == null)
{
throw new ArgumentNullException(nameof(mappedDisplayModel), "When mapping block data the display model should not be null, if the input cannot be mapped then exclude it from the result entirely.");
}
if (_mappedDisplayModels.ContainsKey(inputDataModel.VersionBlockId))
{
throw new Exception($"The specified block model has already been added to the result. VersionBlockId {inputDataModel.VersionBlockId}, model type '{mappedDisplayModel.GetType()}'");
}
_mappedDisplayModels.Add(inputDataModel.VersionBlockId, mappedDisplayModel);
}
