/// <summary>
/// Selects entities whose entityKey member is contained within the request's requestItems collection
/// ie: Where(entity => request.requestItems.Contains(entity.entityKey))
/// </summary>
public static BulkRequestEntityConfigBuilder <TRequest, TItem, TEntity> SelectBy <TRequest, TItem, TEntity>(
this BulkRequestEntityConfigBuilder <TRequest, TItem, TEntity> config,
Expression <Func <TRequest, ICollection <TItem> > > requestItems,
string entityKey)
where TEntity : class
{
var kEntity = Key.MakeKey <TEntity>(entityKey);
var kItem = Key.Identity <TItem>();
var selector = SelectorHelpers.BuildCollection <TRequest, TItem, TEntity>(requestItems, kEntity, kItem);
return(config.SetSelector(selector));
}
/// <summary>
/// Selects entities whose entityKey member is contained within the request's requestItems collection
/// ie: Where(entity => request.requestItems.Contains(entity.entityKey))
/// </summary>
public static BulkRequestEntityConfigBuilder <TRequest, TItem, TEntity> SelectBy <TRequest, TItem, TEntity>(
this BulkRequestEntityConfigBuilder <TRequest, TItem, TEntity> config,
Expression <Func <TRequest, ICollection <TItem> > > requestItems,
Expression <Func <TEntity, TItem> > entityKey)
where TEntity : class
{
var kEntity = Key.MakeKeys(entityKey);
var kItem = Key.Identity <TItem>();
if (kEntity.Length > 1)
{
throw new BadConfigurationException($"Composite keys are not supported for bulk requests");
}
var selector = SelectorHelpers.BuildCollection <TRequest, TItem, TEntity>(requestItems, kEntity[0], kItem);
return(config.SetSelector(selector));
}
private void BuildDefaultSelector <TCompatibleRequest>(RequestConfig <TCompatibleRequest> config)
{
var kItem = config.GetRequestKeys();
var kEntity = config.GetKeysFor <TEntity>();
if (kItem != null && kItem.Length > 0 && kEntity != null && kItem.Length > 0)
{
if (kItem.Length != kEntity.Length)
{
throw new IncompatibleKeysException(typeof(TCompatibleRequest), typeof(TEntity));
}
if (kItem.Length > 1)
{
throw new BadConfigurationException($"Composite keys are not supported for bulk requests");
}
var selector = SelectorHelpers.BuildCollection <TRequest, TItem, TEntity>(
_getRequestItems, kEntity[0], kItem[0]);
config.SetEntitySelector <TEntity>(selector);
}
}
