public async Task <ActionResult <IEnumerable> > GetGroupped([FromBody] GrouppedListRequest request)
{
if (!_permissionService.IsAllowed(new ActionRequestInfo(HttpContext, _implementationsContainer, request.EntityTypeName, ActionTypeEnum.Select)))
{
return(Unauthorized());
}
return(new ActionResult <IEnumerable>(await _entityHandler.GetGroupped(request)));
}
public async Task <IEnumerable> GetGroupped(GrouppedListRequest request)
{
var entityType = _implementationsContainer.Reflector.GetType(request.EntityTypeName);
var method = _handlerInternal.GetType().GetMethod(nameof(EfCoreEntityHandlerInternal.GetGrouppedInternal), BindingFlags.NonPublic | BindingFlags.Instance).MakeGenericMethod(entityType);
var r = this.GetType().GetMethod(nameof(CreateGenericGroupRequest), BindingFlags.NonPublic | BindingFlags.Instance).MakeGenericMethod(entityType)
.Invoke(this, new object[] { request });
var awaitable = method.Invoke(_handlerInternal, new object[] { r }) as Task <IEnumerable>;
return(await awaitable);
}
private GrouppedListRequest <TEntity> CreateGenericGroupRequest <TEntity>(GrouppedListRequest request)
{
return(new GrouppedListRequest <TEntity>()
{
Order = request.Order,
StartIndex = request.StartIndex,
Count = request.Count,
Aggregations = request.Aggregations,
GroupBy = request.GroupBy,
Filters = request.Filters?.Select(x => FilterNodeConverter.ToExpression <TEntity>(x, _implementationsContainer.Reflector)).ToArray()
});
}
internal async Task <int> CountGroupsInternal <TEntity>(GrouppedListRequest <TEntity> request)
where TEntity : class
{
using (var context = await GetReadBusinessDbContext())
{
var original = QueryBuilder.CreateSelectQuery(request, context);
var query = QueryBuilder.GroupQuery(request, original, out var grouppedItemType);
var countMethod = typeof(EntityFrameworkQueryableExtensions).GetMethods()
.Single(x => x.Name == nameof(EntityFrameworkQueryableExtensions.CountAsync) && x.GetParameters().Length == 1);
countMethod = countMethod.MakeGenericMethod(grouppedItemType);
var task = countMethod.Invoke(null, new object[] { query }) as Task <int>;
return(await task);
}
}
