private static async Task <PaginatedItem <TResponse> > GetDataAsync <TDbContext, TEntity, TId, TResponse>(
IQueryRepositoryWithId <TEntity, TId> repo,
Criterion criterion,
Expression <Func <TEntity, TResponse> > selector,
Expression <Func <TEntity, bool> > filter = null,
Func <IQueryable <TEntity>, IIncludableQueryable <TEntity, object> > include = null,
bool disableTracking = true)
where TDbContext : DbContext
where TEntity : class, IAggregateRootWithId <TId>
{
var queryable = repo.Queryable();
if (disableTracking)
{
queryable = queryable.AsNoTracking();
}
if (include != null)
{
queryable = include.Invoke(queryable);
}
if (filter != null)
{
queryable = queryable.Where(filter);
}
if (!string.IsNullOrWhiteSpace(criterion.SortBy))
{
var isDesc = string.Equals(criterion.SortOrder, "desc", StringComparison.OrdinalIgnoreCase)
? true
: false;
queryable = queryable.OrderByPropertyName <TEntity, TId>(criterion.SortBy, isDesc);
}
var results = await queryable
.Skip(criterion.CurrentPage *criterion.PageSize)
.Take(criterion.PageSize)
.Select(selector)
.ToListAsync();
var totalRecord = await queryable.CountAsync();
var totalPages = (int)Math.Ceiling((double)totalRecord / criterion.PageSize);
if (criterion.CurrentPage > totalPages)
{
// criterion.SetCurrentPage(totalPages);
}
return(new PaginatedItem <TResponse>(totalRecord, totalPages, results));
}
public static async Task <IReadOnlyList <TEntity> > ListAsync <TDbContext, TEntity, TId>(
this IQueryRepositoryWithId <TEntity, TId> repo,
Func <IQueryable <TEntity>, IIncludableQueryable <TEntity, object> > include = null,
bool disableTracking = true)
where TDbContext : DbContext
where TEntity : class, IAggregateRootWithId <TId>
{
var queryable = repo.Queryable();
if (include != null)
{
queryable = include.Invoke(queryable);
}
if (disableTracking)
{
queryable = queryable.AsNoTracking();
}
return(await queryable.ToListAsync());
}
public static async Task <TEntity> FindOneAsync <TDbContext, TEntity, TId>(
this IQueryRepositoryWithId <TEntity, TId> repo,
Expression <Func <TEntity, bool> > filter,
Func <IQueryable <TEntity>, IIncludableQueryable <TEntity, object> > include = null,
bool disableTracking = true)
where TDbContext : DbContext
where TEntity : class, IAggregateRootWithId <TId>
{
var queryable = repo.Queryable();
if (include != null)
{
queryable = include.Invoke(queryable);
}
if (disableTracking)
{
queryable = queryable.AsNoTracking();
}
return(await queryable.FirstOrDefaultAsync(filter));
}
public static async Task <TEntity> GetByIdAsync <TDbContext, TEntity, TId>(
this IQueryRepositoryWithId <TEntity, TId> repo,
Guid id,
Func <IQueryable <TEntity>, IIncludableQueryable <TEntity, object> > include = null,
bool disableTracking = true)
where TDbContext : DbContext
where TEntity : class, IAggregateRootWithId <TId>
{
var queryable = repo.Queryable();
if (disableTracking)
{
queryable = queryable.AsNoTracking();
}
if (include != null)
{
queryable = include.Invoke(queryable);
}
return(await queryable.SingleOrDefaultAsync(e => e.Id.Equals(id)));
}