public async Task <int> Count(WorkflowStateFilter filter)
{
IQueryable <WorkflowStateDAO> WorkflowStates = DataContext.WorkflowState;
WorkflowStates = DynamicFilter(WorkflowStates, filter);
return(await WorkflowStates.CountAsync());
}
public async Task <List <WorkflowState> > List(WorkflowStateFilter filter)
{
if (filter == null)
{
return(new List <WorkflowState>());
}
IQueryable <WorkflowStateDAO> WorkflowStateDAOs = DataContext.WorkflowState;
WorkflowStateDAOs = DynamicFilter(WorkflowStateDAOs, filter);
WorkflowStateDAOs = DynamicOrder(WorkflowStateDAOs, filter);
List <WorkflowState> WorkflowStates = await DynamicSelect(WorkflowStateDAOs, filter);
return(WorkflowStates);
}
private IQueryable <WorkflowStateDAO> DynamicOrder(IQueryable <WorkflowStateDAO> query, WorkflowStateFilter filter)
{
switch (filter.OrderType)
{
case OrderType.ASC:
switch (filter.OrderBy)
{
case WorkflowStateOrder.Id:
query = query.OrderBy(q => q.Id);
break;
case WorkflowStateOrder.Code:
query = query.OrderBy(q => q.Code);
break;
case WorkflowStateOrder.Name:
query = query.OrderBy(q => q.Name);
break;
}
break;
case OrderType.DESC:
switch (filter.OrderBy)
{
case WorkflowStateOrder.Id:
query = query.OrderByDescending(q => q.Id);
break;
case WorkflowStateOrder.Code:
query = query.OrderByDescending(q => q.Code);
break;
case WorkflowStateOrder.Name:
query = query.OrderByDescending(q => q.Name);
break;
}
break;
}
query = query.Skip(filter.Skip).Take(filter.Take);
return(query);
}
private IQueryable <WorkflowStateDAO> OrFilter(IQueryable <WorkflowStateDAO> query, WorkflowStateFilter filter)
{
if (filter.OrFilter == null || filter.OrFilter.Count == 0)
{
return(query);
}
IQueryable <WorkflowStateDAO> initQuery = query.Where(q => false);
foreach (WorkflowStateFilter WorkflowStateFilter in filter.OrFilter)
{
IQueryable <WorkflowStateDAO> queryable = query;
if (WorkflowStateFilter.Id != null)
{
queryable = queryable.Where(q => q.Id, WorkflowStateFilter.Id);
}
if (WorkflowStateFilter.Code != null)
{
queryable = queryable.Where(q => q.Code, WorkflowStateFilter.Code);
}
if (WorkflowStateFilter.Name != null)
{
queryable = queryable.Where(q => q.Name, WorkflowStateFilter.Name);
}
initQuery = initQuery.Union(queryable);
}
return(initQuery);
}
private IQueryable <WorkflowStateDAO> DynamicFilter(IQueryable <WorkflowStateDAO> query, WorkflowStateFilter filter)
{
if (filter == null)
{
return(query.Where(q => false));
}
if (filter.Id != null)
{
query = query.Where(q => q.Id, filter.Id);
}
if (filter.Code != null)
{
query = query.Where(q => q.Code, filter.Code);
}
if (filter.Name != null)
{
query = query.Where(q => q.Name, filter.Name);
}
query = OrFilter(query, filter);
return(query);
}
private async Task <List <WorkflowState> > DynamicSelect(IQueryable <WorkflowStateDAO> query, WorkflowStateFilter filter)
{
List <WorkflowState> WorkflowStates = await query.Select(q => new WorkflowState()
{
Id = filter.Selects.Contains(WorkflowStateSelect.Id) ? q.Id : default(long),
Code = filter.Selects.Contains(WorkflowStateSelect.Code) ? q.Code : default(string),
Name = filter.Selects.Contains(WorkflowStateSelect.Name) ? q.Name : default(string),
}).AsNoTracking().ToListAsync();
return(WorkflowStates);
}
