/// <summary>Includes the given file.</summary>
/// <param name="path">Full pathname of the file.</param>
/// <returns>An IQueryable.</returns>
public IQueryable Include(string path)
{
var objectQuery = OriginalQueryable.GetObjectQuery();
var objectQueryIncluded = objectQuery.Include(path);
return(new QueryInterceptorQueryable(objectQueryIncluded, Visitors));
}
/// <summary>Enumerates create enumerable in this collection.</summary>
/// <exception cref="Exception">Thrown when an exception error condition occurs.</exception>
/// <returns>
/// An enumerator that allows foreach to be used to process create enumerable in this collection.
/// </returns>
public IEnumerable <T> CreateEnumerable()
{
QueryIncludeOptimizedIncludeSubPath.RemoveLazyChild(this);
// MODIFY query if necessary
#if EF5 || EF6
var objectContext = OriginalQueryable.GetObjectQuery().Context;
var keyMembers = ((dynamic)objectContext).CreateObjectSet <T>().EntitySet.ElementType.KeyMembers;
var keyNames = ((IEnumerable <EdmMember>)keyMembers).Select(x => x.Name).ToArray();
#elif EFCORE
var context = currentQuery.OriginalQueryable.GetDbContext();
var keyNames = context.Model.FindEntityType(typeof(TResult).DisplayName(true))
.GetKeys().ToList()[0]
.Properties.Select(x => x.Name).ToArray();
#endif
var newQuery = OriginalQueryable.AddToRootOrAppendOrderBy(keyNames).Select(x => x);
foreach (var child in Childs)
{
child.CreateIncludeQuery(newQuery);
}
// RESOLVE current and all future child queries
var list = QueryIncludeOptimizedManager.AllowQueryBatch ? newQuery.Future().ToList() : newQuery.ToList();
// FIX collection null
QueryIncludeOptimizedNullCollection.NullCollectionToEmpty(list, Childs);
return(list);
}
/// <summary>Gets the enumerator.</summary>
/// <returns>The enumerator.</returns>
public IEnumerator <T> GetEnumerator()
{
var enumerators = OriginalQueryable.GetEnumerator();
var asNoTracking = OriginalQueryable.Expression.ToString().Contains("MergeAs(NoTracking)");
List <T> list = new List <T>();
while (enumerators.MoveNext())
{
list.Add(enumerators.Current);
}
// todo: add all current objects
List <object> includedObjects = new List <object>();
List <object> excludedObjects = new List <object>();
foreach (var includeFilter in IncludeFilters)
{
includeFilter.ApplyFilter(list.Cast <object>().ToList());
includedObjects.AddRange(includeFilter.GetIncludedList());
excludedObjects.AddRange(includeFilter.GetExcludedList());
}
includedObjects.AddRange(list.Cast <object>());
excludedObjects = excludedObjects.Except(includedObjects).ToList();
var context = OriginalQueryable.GetObjectQuery().Context;
excludedObjects.ForEach(x => context.DeleteObject(x));
return(list.GetEnumerator());
}
/// <summary>Gets object query.</summary>
/// <returns>The object query.</returns>
public virtual ObjectQuery GetObjectQuery()
{
if (OriginalQueryable == null && QueryFactory != null)
{
OriginalQueryable = QueryFactory(OwnerParent.GetObjectQuery());
}
ObjectQuery = OriginalQueryable.GetObjectQuery();
return(OriginalQueryable.GetObjectQuery());
}
/// <summary>Enumerates create enumerable in this collection.</summary>
/// <exception cref="Exception">Thrown when an exception error condition occurs.</exception>
/// <returns>
/// An enumerator that allows foreach to be used to process create enumerable in this collection.
/// </returns>
public IEnumerable <T> CreateEnumerable()
{
// MODIFY query if necessary
#if EF5 || EF6
var objectContext = OriginalQueryable.GetObjectQuery().Context;
var keyMembers = ((dynamic)objectContext).CreateObjectSet <T>().EntitySet.ElementType.KeyMembers;
var keyNames = ((IEnumerable <EdmMember>)keyMembers).Select(x => x.Name).ToArray();
#elif EFCORE
var context = currentQuery.OriginalQueryable.GetDbContext();
var keyNames = context.Model.FindEntityType(typeof(TResult).DisplayName(true))
.GetKeys().ToList()[0]
.Properties.Select(x => x.Name).ToArray();
#endif
var newQuery = OriginalQueryable.AddToRootOrAppendOrderBy(keyNames).Select(x => x);
foreach (var child in Childs)
{
child.CreateIncludeQuery(newQuery);
}
// RESOLVE current and all future child queries
return(newQuery.Future().ToList());
}
/// <summary>Enumerates create enumerable in this collection.</summary>
/// <exception cref="Exception">Thrown when an exception error condition occurs.</exception>
/// <returns>
/// An enumerator that allows foreach to be used to process create enumerable in this collection.
/// </returns>
public IEnumerable <T> CreateEnumerable()
{
//var objectQuery = OriginalQueryable.GetObjectQuery();
//if (objectQuery.MergeOption == MergeOption.NoTracking)
//{
// objectQuery.MergeOption = MergeOption.AppendOnly;
// var newContext = QueryIncludeOptimizedManager.DbContextFactory(objectQuery.Context.GetDbContext()).GetObjectContext();
// // CHANGE the context under the objectQuery
// {
// var internalQueryProperty = OriginalQueryable.GetType().GetProperty("InternalQuery", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
// var internalQuery = internalQueryProperty.GetValue(OriginalQueryable);
// //var internalQueryProperty = typeof(DbQuery).GetProperty("InternalQuery", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
// //var internalQuery = internalQueryProperty.GetValue(OriginalQueryable, null);
// var stateField = typeof(ObjectQuery).GetField("_state", BindingFlags.NonPublic | BindingFlags.Instance);
// var state = stateField.GetValue(objectQuery);
// var assembly = typeof(ObjectQuery).Assembly;
// var objectQueryState = assembly.GetType("System.Data.Entity.Core.Objects.Internal.ObjectQueryState");
// var contextField = objectQueryState.GetField("_context", BindingFlags.NonPublic | BindingFlags.Instance);
// contextField.SetValue(state, newContext);
// var expressionField = state.GetType().GetField("_expression", BindingFlags.NonPublic | BindingFlags.Instance);
// var expression = (Expression)expressionField.GetValue(state);
// var visitor = new QueryIncludeOptimizedExpressionReduceVisitor2();
// expression = visitor.Visit(expression);
// }
//}
QueryIncludeOptimizedIncludeSubPath.RemoveLazyChild(this);
// MODIFY query if necessary
#if EF5 || EF6
var objectContext = OriginalQueryable.GetObjectQuery().Context;
var keyMembers = objectContext.GetEntitySet <T>().ElementType.KeyMembers;
var keyNames = keyMembers.Select(x => x.Name).ToArray();
#elif EFCORE
var context = currentQuery.OriginalQueryable.GetDbContext();
var keyNames = context.Model.FindEntityType(typeof(TResult).DisplayName(true))
.GetKeys().ToList()[0]
.Properties.Select(x => x.Name).ToArray();
#endif
var newQuery = OriginalQueryable.AddToRootOrAppendOrderBy(keyNames).Select(x => x);
List <T> list;
if (QueryIncludeOptimizedManager.AllowQueryBatch)
{
var future = newQuery.Future();
foreach (var child in Childs)
{
child.CreateIncludeQuery(newQuery);
}
list = future.ToList();
}
else
{
list = newQuery.ToList();
foreach (var child in Childs)
{
child.CreateIncludeQuery(newQuery);
}
}
#if EF6
// FIX lazy loading
QueryIncludeOptimizedLazyLoading.SetLazyLoaded(list, Childs);
#endif
// FIX collection null
QueryIncludeOptimizedNullCollection.NullCollectionToEmpty(list, Childs);
return(list);
}
public async Task <List <T> > CreateEnumerableAsync(CancellationToken cancellationToken)
{
QueryIncludeOptimizedIncludeSubPath.RemoveLazyChild(this);
// MODIFY query if necessary
#if EF5 || EF6
var objectContext = OriginalQueryable.GetObjectQuery().Context;
var keyMembers = objectContext.GetEntitySet <T>().ElementType.KeyMembers;
var keyNames = keyMembers.Select(x => x.Name).ToArray();
#elif EFCORE
DbContext context = null;
if (OriginalQueryable.IsInMemoryQueryContext())
{
context = OriginalQueryable.GetInMemoryContext();
}
else
{
// MODIFY query if necessary
context = OriginalQueryable.GetDbContext();
}
var keyNames = context.Model.FindEntityType(typeof(T).DisplayName(true))
.GetKeys().ToList()[0]
.Properties.Select(x => x.Name).ToArray();
#endif
var newQuery = OriginalQueryable.AddToRootOrAppendOrderBy(keyNames).Select(x => x);
List <T> list;
if (QueryIncludeOptimizedManager.AllowQueryBatch)
{
var future = newQuery.Future();
foreach (var child in Childs)
{
child.CreateIncludeQuery(newQuery);
}
list = await future.ToListAsync(cancellationToken).ConfigureAwait(false);
}
else
{
list = await newQuery.ToListAsync(cancellationToken).ConfigureAwait(false);
foreach (var child in Childs)
{
child.CreateIncludeQuery(newQuery);
}
}
#if EF6
// FIX lazy loading
QueryIncludeOptimizedLazyLoading.SetLazyLoaded(list, Childs);
#endif
// FIX collection null
QueryIncludeOptimizedNullCollection.NullCollectionToEmpty(list, Childs);
return(list);
}
