public async Task <int?> GetMaxExistedOrder(Func <IQueryable <TEntity>, IQueryable <TEntity> > queryBuilder, params Expression <Func <TEntity, object> >[] includes)
{
bool createdNew;
DbSet <TEntity> set = DbContextManager.BuildOrCurrentContext(out createdNew).Set <TEntity>();
IQueryable <TEntity> query = OnSystemFilters ?
await ApplySystemFilters(queryBuilder(ApplyIncludes(set, includes))) :
queryBuilder(ApplyIncludes(set, includes));
int?maxExistedOrder;
try
{
maxExistedOrder = query.Max(r => r.Order);
}
catch (InvalidOperationException)
{
// means query was empty
maxExistedOrder = null;
}
IList <TEntity> entities = await query.ToListAsync();
if (createdNew)
{
DbContextManager.DisposeContext();
}
return(maxExistedOrder);
}
public virtual async Task <TEntity> GetAsync(TPrimaryKey id, params Expression <Func <TEntity, object> >[] includes)
{
bool createdNew = false;
try
{
DbSet <TEntity> set = DbContextManager.BuildOrCurrentContext(out createdNew).Set <TEntity>();
IQueryable <TEntity> temp = OnSystemFilters ?
await ApplySystemFilters(Queryable.Where(ApplyIncludes(set, includes), CreateEqualityExpressionForId(id))) :
Queryable.Where(ApplyIncludes(set, includes), CreateEqualityExpressionForId(id));
TEntity entity = await temp.FirstOrDefaultAsync();
if (entity == null)
{
throw new EntityNotFoundException($"Entity {typeof(TEntity).Name} with id {id} not found.");
}
return(entity);
}
finally
{
if (createdNew)
{
DbContextManager.DisposeContext();
}
}
}
public virtual async Task <TEntity> SingleAsync(Expression <Func <TEntity, bool> > filter, params Expression <Func <TEntity, object> >[] includes)
{
bool createdNew = false;
try
{
DbSet <TEntity> set = DbContextManager.BuildOrCurrentContext(out createdNew).Set <TEntity>();
IQueryable <TEntity> query = OnSystemFilters ?
await ApplySystemFilters(Queryable.Where(ApplyIncludes(set, includes), filter)) :
Queryable.Where(ApplyIncludes(set, includes), filter);
TEntity entity = null;
try
{
entity = await query.SingleOrDefaultAsync();
}
catch (Exception ex)
{
throw new EntityNotFoundException($"Entity {typeof(TEntity).Name} with predicate {filter.ToString()} is not unique.", ex);
}
if (entity == null)
{
throw new EntityNotFoundException($"Entity {typeof(TEntity).Name} with predicate {filter.ToString()} not found.");
}
return(entity);
}
finally
{
if (createdNew)
{
DbContextManager.DisposeContext();
}
}
}
public virtual async Task <User> FirstOrDefaultWithDeepIncludesAsync(Expression <Func <User, bool> > filter)
{
bool createdNew = false;
try
{
DbSet <User> set = DbContextManager.BuildOrCurrentContext(out createdNew).Set <User>();
var query = set
.Include(r => r.UserClaims)
.ThenInclude(r => r.Claim)
.Include(r => r.UserRoles)
.ThenInclude(r => r.Role)
.ThenInclude(r => r.RoleClaims)
.ThenInclude(r => r.Claim)
.Include(r => r.ExternalLogins);
IQueryable <User> temp = OnSystemFilters ?
await ApplySystemFilters(Queryable.Where(query, filter)) :
Queryable.Where(query, filter);
User entity = await temp.FirstOrDefaultAsync();
return(entity);
}
finally
{
if (createdNew)
{
DbContextManager.DisposeContext();
}
}
}
public async Task NullifyRouteRelation(Func <IQueryable <Lead>, IQueryable <Lead> > queryBuilder)
{
bool createdNew = false;
try
{
DbContext context = DbContextManager.BuildOrCurrentContext(out createdNew);
List <Lead> leads = EntityFrameworkQueryableExtensions.AsNoTracking(queryBuilder(context.Set <Lead>())).ToList();
foreach (var lead in leads)
{
Lead stubLead = new Lead()
{
Id = lead.Id, RouteId = null
};
context.Set <Lead>().Attach(stubLead);
context.Entry(stubLead).Property(x => x.RouteId).IsModified = true;
}
}
finally
{
if (createdNew)
{
await DbContextManager.CurrentContext.SaveChangesAsync();
DbContextManager.DisposeContext();
}
}
}
public QuantumLogicUnitOfWork(DbContextManager contextManager, bool useTransaction, Action <QuantumLogicUnitOfWork> disposeAction)
{
_contextManager = contextManager;
_disposeAction = disposeAction;
_contextManager.BuildOrCurrentContext();
if (useTransaction)
{
_currentTransaction = _contextManager.CurrentContext.Database.BeginTransaction();
}
}
public virtual async Task <int> GetTotalCountAsync(Func <IQueryable <TEntity>, IQueryable <TEntity> > queryBuilder)
{
bool createdNew;
DbSet <TEntity> set = DbContextManager.BuildOrCurrentContext(out createdNew).Set <TEntity>();
IQueryable <TEntity> query = OnSystemFilters ? await ApplySystemFilters(queryBuilder(set)) : queryBuilder(set);
int totalCount = query.Count();
if (createdNew)
{
DbContextManager.DisposeContext();
}
return(totalCount);
}
public virtual async Task <IList <TEntity> > GetAllAsync(Func <IQueryable <TEntity>, IQueryable <TEntity> > queryBuilder, params Expression <Func <TEntity, object> >[] includes)
{
bool createdNew;
DbSet <TEntity> set = DbContextManager.BuildOrCurrentContext(out createdNew).Set <TEntity>();
IQueryable <TEntity> query = OnSystemFilters ?
await ApplySystemFilters(queryBuilder(ApplyIncludes(set, includes))) :
queryBuilder(ApplyIncludes(set, includes));
IList <TEntity> entities = await query.ToListAsync();
if (createdNew)
{
DbContextManager.DisposeContext();
}
return(entities);
}
public virtual async Task DeleteAsync(TEntity entity)
{
bool createdNew = false;
try
{
DbContextManager.BuildOrCurrentContext(out createdNew).Remove(entity);
}
finally
{
if (createdNew)
{
await DbContextManager.CurrentContext.SaveChangesAsync();
DbContextManager.DisposeContext();
}
}
}
public virtual async Task DeleteRange(Func <IQueryable <TEntity>, IQueryable <TEntity> > queryBuilder)
{
bool createdNew = false;
try
{
var entities = await GetAllAsync(queryBuilder);
DbContextManager.BuildOrCurrentContext(out createdNew).RemoveRange(entities);
}
finally
{
if (createdNew)
{
await DbContextManager.CurrentContext.SaveChangesAsync();
DbContextManager.DisposeContext();
}
}
}
public virtual async Task <TEntity> FirstOrDefaultAsync(Expression <Func <TEntity, bool> > filter, params Expression <Func <TEntity, object> >[] includes)
{
bool createdNew = false;
try
{
DbSet <TEntity> set = DbContextManager.BuildOrCurrentContext(out createdNew).Set <TEntity>();
IQueryable <TEntity> temp = OnSystemFilters ?
await ApplySystemFilters(Queryable.Where(ApplyIncludes(set, includes), filter)) :
Queryable.Where(ApplyIncludes(set, includes), filter);
TEntity entity = await temp.FirstOrDefaultAsync();
return(entity);
}
finally
{
if (createdNew)
{
DbContextManager.DisposeContext();
}
}
}
