public TListLogic <T> TLimit(int pageSize = 0, int page = 1)
{
while (true)
{
// take
if (pageSize <= 0)
{
var listSize = TType.GetCustomAttribute <TListSize>();
if (listSize == null)
{
break;
}
pageSize = listSize.Key;
if (pageSize <= 0)
{
break;
}
}
m_take = pageSize;
// skip
page = page - 1;
if (page <= 0)
{
break;
}
m_skip = page * pageSize;
break;
}
return(this);
}
public string GetTitle()
{
TEntity entity = TType.GetCustomAttribute <TEntity>();
string title = entity != null ? entity.Value : null;
return(THelper.Lang(title, TType.Name));
}
public TListLogic <T> TOrder(string key = null, bool isAsc = true)
{
while (true)
{
TListOrder listOrder = null;
if (!string.IsNullOrWhiteSpace(key))
{
// input sort
listOrder = new TListOrder(key, isAsc);
}
else
{
// config sort
listOrder = TType.GetCustomAttribute <TListOrder>();
if (listOrder == null)
{
// DefaultKey sort
listOrder = new TListOrder(PropertyHelper.DefaultKey, isAsc);
}
}
// check key property
PropertyInfo property = TType.GetProperty(listOrder.Key);
if (property == null)
{
break;
}
ParameterExpression parameter = Expression.Parameter(TType);
MemberExpression propertyAccess = Expression.MakeMemberAccess(parameter, property);
LambdaExpression lambda = Expression.Lambda(propertyAccess, parameter); // pre_department.Name
string order = listOrder.IsAsc ? "OrderBy" : "OrderByDescending";
m_query = Expression.Call(
typeof(Queryable),
order,
new Type[] { TType, property.PropertyType },
m_query,
lambda
);
m_isOrder = true;
break;
}
return(this);
}
