private Dictionary <PropertyDescriptor, IEnumerable <ChangeSetEntry> > GetAssociatedChanges(object entity)
{
Func <ChangeSetEntry, bool> predicate = null;
Func <int, ChangeSetEntry> selector = null;
Func <int, ChangeSetEntry> func3 = null;
Dictionary <PropertyDescriptor, IEnumerable <ChangeSetEntry> > dictionary = null;
if (this._associatedChangesMap == null)
{
this._associatedChangesMap = new Dictionary <object, Dictionary <PropertyDescriptor, IEnumerable <ChangeSetEntry> > >();
}
else if (this._associatedChangesMap.TryGetValue(entity, out dictionary))
{
return(dictionary);
}
Dictionary <int, ChangeSetEntry> entityOperationMap = this._changeSetEntries.ToDictionary <ChangeSetEntry, int>(p => p.Id);
dictionary = new Dictionary <PropertyDescriptor, IEnumerable <ChangeSetEntry> >();
foreach (PropertyDescriptor descriptor in from p in TypeDescriptor.GetProperties(entity.GetType()).Cast <PropertyDescriptor>()
where p.Attributes[typeof(CompositionAttribute)] != null
select p)
{
List <ChangeSetEntry> list = new List <ChangeSetEntry>();
if (predicate == null)
{
predicate = p => p.Entity == entity;
}
ChangeSetEntry entry = this._changeSetEntries.Single <ChangeSetEntry>(predicate);
if ((entry.Associations != null) && entry.Associations.ContainsKey(descriptor.Name))
{
int[] source = entry.Associations[descriptor.Name];
if (selector == null)
{
selector = p => entityOperationMap[p];
}
IEnumerable <ChangeSetEntry> collection = source.Select <int, ChangeSetEntry>(selector);
list.AddRange(collection);
}
if ((entry.OriginalAssociations != null) && entry.OriginalAssociations.ContainsKey(descriptor.Name))
{
int[] numArray2 = entry.OriginalAssociations[descriptor.Name];
if (func3 == null)
{
func3 = p => entityOperationMap[p];
}
IEnumerable <ChangeSetEntry> enumerable3 = from p in numArray2.Select <int, ChangeSetEntry>(func3)
where p.Operation == DomainOperation.Delete
select p;
list.AddRange(enumerable3);
}
dictionary[descriptor] = list;
}
this._associatedChangesMap[entity] = dictionary;
return(dictionary);
}
private void OrderOperations(ChangeSetEntry operation, Dictionary <ChangeSetEntry, List <ChangeSetEntry> > operationChildMap, List <ChangeSetEntry> orderedOperations)
{
List <ChangeSetEntry> list;
orderedOperations.Add(operation);
if (operationChildMap.TryGetValue(operation, out list))
{
foreach (ChangeSetEntry entry in list)
{
this.OrderOperations(entry, operationChildMap, orderedOperations);
}
}
}
public TEntity GetOriginal <TEntity>(TEntity clientEntity) where TEntity : class
{
if (clientEntity == null)
{
throw new ArgumentNullException("clientEntity");
}
ChangeSetEntry entry = this._changeSetEntries.FirstOrDefault <ChangeSetEntry>(p => object.ReferenceEquals(p.Entity, clientEntity));
if (entry == null)
{
throw new ArgumentException("ChangeSet_ChangeSetEntryNotFound");
}
if (entry.Operation == DomainOperation.Insert)
{
throw new InvalidOperationException("ChangeSet_OriginalNotValidForInsert");
}
return((TEntity)entry.OriginalEntity);
}
public ChangeSet(ChangeSetEntry changeSetEntry) : this(new List <ChangeSetEntry> {
changeSetEntry
})
{
}
private IEnumerable <ChangeSetEntry> OrderChangeset(IEnumerable <ChangeSetEntry> changeSetEntries)
{
Dictionary <int, ChangeSetEntry> dictionary = changeSetEntries.ToDictionary <ChangeSetEntry, int>(p => p.Id);
Dictionary <ChangeSetEntry, List <ChangeSetEntry> > operationChildMap = new Dictionary <ChangeSetEntry, List <ChangeSetEntry> >();
bool flag = false;
foreach (IGrouping <Type, ChangeSetEntry> grouping in from p in changeSetEntries group p by p.Entity.GetType())
{
IEnumerable <PropertyDescriptor> enumerable = (from p in TypeDescriptor.GetProperties(grouping.Key).Cast <PropertyDescriptor>()
where p.Attributes[typeof(CompositionAttribute)] != null
select p).ToArray <PropertyDescriptor>();
foreach (ChangeSetEntry entry in grouping)
{
foreach (PropertyDescriptor descriptor in enumerable)
{
flag = true;
List <int> source = new List <int>();
if ((entry.Associations != null) && entry.Associations.ContainsKey(descriptor.Name))
{
source.AddRange(entry.Associations[descriptor.Name]);
}
if ((entry.OriginalAssociations != null) && entry.OriginalAssociations.ContainsKey(descriptor.Name))
{
source.AddRange(entry.OriginalAssociations[descriptor.Name]);
}
foreach (int num in source.Distinct <int>())
{
ChangeSetEntry entry2 = null;
if (dictionary.TryGetValue(num, out entry2))
{
List <ChangeSetEntry> list2;
if (entry2.ParentOperation != null)
{
throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, "ChangeSet_ChildHasMultipleParents", new object[] { entry2.Id }));
}
entry2.ParentOperation = entry;
if (!operationChildMap.TryGetValue(entry, out list2))
{
list2 = new List <ChangeSetEntry>();
operationChildMap[entry] = list2;
}
list2.Add(entry2);
}
}
}
}
}
if (!flag)
{
return(changeSetEntries);
}
List <ChangeSetEntry> orderedOperations = new List <ChangeSetEntry>();
foreach (ChangeSetEntry entry3 in from p in changeSetEntries
where p.ParentOperation == null
select p)
{
this.OrderOperations(entry3, operationChildMap, orderedOperations);
}
return(orderedOperations.Union <ChangeSetEntry>(changeSetEntries).ToArray <ChangeSetEntry>());
}
