private void SetNavigation(InternalEntityEntry entry, INavigation navigation, object value)
{
if (navigation != null)
{
_changeDetector.Suspend();
try
{
entry[navigation] = value;
}
finally
{
_changeDetector.Resume();
}
entry.SetRelationshipSnapshotValue(navigation, value);
}
}
private void SetNavigation(InternalEntityEntry entry, INavigation navigation, InternalEntityEntry value)
{
if (navigation != null)
{
_changeDetector.Suspend();
var entity = value?.Entity;
try
{
entry[navigation] = entity;
}
finally
{
_changeDetector.Resume();
}
entry.SetRelationshipSnapshotValue(navigation, entity);
}
}
private void AddToCollection(InternalEntityEntry entry, INavigation navigation, InternalEntityEntry value)
{
if (navigation != null)
{
_changeDetector.Suspend();
try
{
if (entry.AddToCollection(navigation, value))
{
entry.AddToCollectionSnapshot(navigation, value.Entity);
}
}
finally
{
_changeDetector.Resume();
}
}
}
private void SetNavigation(IClrPropertySetter setter, object entity, object value)
{
_changeDetector.Suspend();
try
{
setter.SetClrValue(entity, value);
}
finally
{
_changeDetector.Resume();
}
}
private void LoadNavigationProperties(
object entity,
IReadOnlyList <INavigation> navigationPath,
int currentNavigationIndex,
IReadOnlyList <object> relatedEntities)
{
_changeDetector.Suspend();
try
{
if (navigationPath[currentNavigationIndex].IsDependentToPrincipal() &&
relatedEntities.Any())
{
navigationPath[currentNavigationIndex]
.GetSetter()
.SetClrValue(entity, relatedEntities[0]);
var inverseNavigation = navigationPath[currentNavigationIndex].FindInverse();
if (inverseNavigation != null)
{
if (inverseNavigation.IsCollection())
{
inverseNavigation
.GetCollectionAccessor()
.AddRange(relatedEntities[0], new[] { entity });
}
else
{
inverseNavigation
.GetSetter()
.SetClrValue(relatedEntities[0], entity);
}
}
}
else
{
if (navigationPath[currentNavigationIndex].IsCollection())
{
navigationPath[currentNavigationIndex]
.GetCollectionAccessor()
.AddRange(entity, relatedEntities);
var inverseNavigation = navigationPath[currentNavigationIndex].FindInverse();
if (inverseNavigation != null)
{
var clrPropertySetter
= inverseNavigation.GetSetter();
foreach (var relatedEntity in relatedEntities)
{
clrPropertySetter.SetClrValue(relatedEntity, entity);
}
}
}
else if (relatedEntities.Any())
{
navigationPath[currentNavigationIndex]
.GetSetter()
.SetClrValue(entity, relatedEntities[0]);
var inverseNavigation = navigationPath[currentNavigationIndex].FindInverse();
inverseNavigation?.GetSetter()
.SetClrValue(relatedEntities[0], entity);
}
}
}
finally
{
_changeDetector.Resume();
}
}
private void LoadNavigationProperties(
object entity,
IReadOnlyList <INavigation> navigationPath,
int currentNavigationIndex,
IReadOnlyList <object> relatedEntities,
bool tracking)
{
_changeDetector.Suspend();
try
{
var navigation = navigationPath[currentNavigationIndex];
var inverseNavigation = navigation.FindInverse();
if (navigation.IsDependentToPrincipal() &&
relatedEntities.Any())
{
var relatedEntity = relatedEntities[0];
SetNavigation(entity, navigation, relatedEntity, tracking);
if (inverseNavigation != null)
{
if (inverseNavigation.IsCollection())
{
AddToCollection(relatedEntity, inverseNavigation, entity, tracking);
}
else
{
SetNavigation(relatedEntity, inverseNavigation, entity, tracking);
}
}
}
else
{
if (navigation.IsCollection())
{
AddRangeToCollection(entity, navigation, relatedEntities, tracking);
if (inverseNavigation != null)
{
var setter = inverseNavigation.GetSetter();
foreach (var relatedEntity in relatedEntities)
{
SetNavigation(relatedEntity, inverseNavigation, setter, entity, tracking);
}
}
}
else if (relatedEntities.Any())
{
var relatedEntity = relatedEntities[0];
SetNavigation(entity, navigation, relatedEntity, tracking);
if (inverseNavigation != null)
{
SetNavigation(relatedEntity, inverseNavigation, entity, tracking);
}
}
}
}
finally
{
_changeDetector.Resume();
}
}