public static IMappingExpression <TSource, TDestination> LoadProperties <TSource, TDestination>(this IMappingExpression <TSource, TDestination> expression, RepositoryPagingModel <TDestination> filter, DbContext context = null)
where TSource : class
{
var destType = typeof(TDestination);
var infos = destType.GetProperties();
if (!string.IsNullOrEmpty(filter.Distinct))
{
filter.LoadProperties = new List <string>()
{
filter.Distinct.Split(new[] { '.' }, 2)[0]
}
}
;
var properties = (filter.LoadProperties ?? (filter.LoadProperties = new List <string>())).ToList();
if (!properties.Any())
{
var propertyInfoIgnore = infos.Where(x => x.GetCustomAttributes(typeof(NotLoadByDefault), true).Any()).ToList();
foreach (var property in propertyInfoIgnore)
{
expression.ForMember(property.Name, opt => opt.Ignore());
}
return(expression);
}
var orderProperties = filter.OrderProperty?.Split(new[] { ',', ' ', '/', '\\' }, StringSplitOptions.RemoveEmptyEntries).ToList() ?? new List <string>();
if (string.IsNullOrEmpty(filter.Distinct) && context != null)
{
orderProperties.AddRange(context.GetKeyNames <TSource>());
}
if (orderProperties.Any())
{
foreach (var property in orderProperties)
{
var split = property.Split(new[] { '.' }, 2)[0];
if (string.IsNullOrEmpty(split))
{
continue;
}
var orderProperty = infos.FirstOrDefault(x => string.Equals(x.Name, split, StringComparison.InvariantCultureIgnoreCase));
if (orderProperty != null && !properties.Contains(orderProperty.Name, StringComparer.OrdinalIgnoreCase))
{
properties.Add(orderProperty.Name);
}
}
}
var orderPropertyDefault = infos.FirstOrDefault(x => x.GetCustomAttributes(typeof(DefaultSortPropertyAttribute), true).Any());
if (orderPropertyDefault != null && !properties.Contains(orderPropertyDefault.Name, StringComparer.OrdinalIgnoreCase))
{
properties.Add(orderPropertyDefault.Name);
}
if (filter.Filters?.Any() ?? false)
{
var propertyValuePairs = QueryableUtils.ToPropertyValuePairs(filter.Filters, destType);
properties.AddRange(propertyValuePairs.SelectMany(x => x.Select(c => c.Property.Name)));
}
var propertyInfos = infos.Where(x => !properties.Contains(x.Name, StringComparer.OrdinalIgnoreCase) && (!x.GetCustomAttributes(typeof(LoadAlways), true).Any() || x.GetCustomAttributes(typeof(NotLoadByDefault), true).Any())).ToList();
foreach (var property in propertyInfos)
{
expression.ForMember(property.Name, opt => opt.Ignore());
}
return(expression);
}
}
public virtual PagingQueryable <TCast> GetPage <TCast>(RepositoryPagingModel <TCast> filter, Expression <Func <T, bool> > checkPermission, List <Expression <Func <T, bool> > > @where, Action <IMapperConfigurationExpression> configure, List <Expression <Func <TCast, bool> > > postWhere = null) where TCast : class
{
var page = new Page(filter.PageNumber, filter.PageSize);
var queryable = Dbset;
if (checkPermission != null)
{
queryable = queryable.Where(checkPermission);
}
foreach (var expression in where)
{
queryable = queryable.Where(expression);
}
var configurationProvider = AutoMapperDomainUtils.GetConfigurationProvider(config =>
{
configure.Invoke(config);
var mappingExpression = ((IProfileConfiguration)config).TypeMapConfigs.FirstOrDefault(x => x is IMappingExpression <T, TCast>) as IMappingExpression <T, TCast>;
mappingExpression?.LoadProperties(filter, DataContext);
});
var castQuery = queryable.ProjectTo <TCast>(configurationProvider).AsExpandable().WithTranslations();
if (postWhere != null)
{
foreach (var expression in postWhere)
{
castQuery = castQuery.Where(expression);
}
}
if (filter.Filters?.Any() ?? false)
{
castQuery = castQuery.Where(QueryableUtils.FiltersToLambda <TCast>(filter.Filters));
}
var orderProperties = filter.OrderProperty?.Split(new[] { ',', ' ', '/', '\\' }, StringSplitOptions.RemoveEmptyEntries).ToList() ?? new List <string>();
IOrderedQueryable <TCast> orderedQuery;
if (filter.Distinct.IsNullOrEmpty())
{
orderProperties.AddRange(_dataContext.GetKeyNames <T>());
orderProperties = orderProperties.Distinct(new GenericCompare <string>(x => x.ToLowerInvariant())).ToList();
if (orderProperties.Any())
{
orderedQuery = filter.IsDesc ? castQuery.OrderByDescendingWithNullLowPriority(orderProperties.First()) : castQuery.OrderByWithNullLowPriority(orderProperties.First());
orderProperties.RemoveAt(0);
}
else
{
orderedQuery = filter.IsDesc ? castQuery.OrderByDescendingWithNullLowPriority() : castQuery.OrderByWithNullLowPriority();
}
if (orderProperties.Any())
{
orderedQuery = orderProperties.Aggregate(orderedQuery, (current, property) => filter.IsDesc ? current.ThenByDescendingWithNullLowPriority(property) : current.ThenByWithNullLowPriority(property));
}
else
{
orderedQuery = filter.IsDesc ? orderedQuery.ThenByDescendingWithNullLowPriority() : orderedQuery.ThenByWithNullLowPriority();
}
}
else
{
castQuery = castQuery.DistinctByField(filter.Distinct).AsExpandable();
orderedQuery = filter.IsDesc ? castQuery.OrderByDescendingWithNullLowPriority(filter.Distinct) : castQuery.OrderByWithNullLowPriority(filter.Distinct);
}
return(new PagingQueryable <TCast>(orderedQuery, page));
}