public static void SetEntityKey(this IRelatedEnd relatedEnd, EntityKey key)
{
Debug.Assert(relatedEnd.IsEntityReference());
Type relationshipType = relatedEnd.GetType();
PropertyInfo pi = relationshipType.GetProperty("EntityKey");
pi.SetValue(relatedEnd, key, null);
}
public static EntityKey GetEntityKey(this IRelatedEnd relatedEnd)
{
Debug.Assert(relatedEnd.IsEntityReference());
Type relationshipType = relatedEnd.GetType();
PropertyInfo pi = relationshipType.GetProperty("EntityKey");
return((EntityKey)pi.GetValue(relatedEnd, null));
}
private static IEnumerable <TEntity> ExtractSingle <TEntity>(IRelatedEnd relatedEnd)
where TEntity : class
{
var valueProp = relatedEnd.GetType().GetProperty("Value");
var value = valueProp?.GetValue(relatedEnd);
yield return(value as TEntity);
}
private void AttachRelationManyEntity(FBEntity entity, IRelatedEnd re)
{
Type t = re.GetType();
Type eType = t.GetGenericArguments()[0];
if (!re.IsLoaded)
{
re.Load();
}
RelationManyEntity rManyE = new RelationManyEntity();
rManyE.EntityType = eType.Name;
rManyE.RelationshipName = re.RelationshipName;
rManyE.PropertyName = re.TargetRoleName;
entity.CollectionEntity.Add(rManyE);
foreach (var item in re)
{
FBEntity tempEntity = new FBEntity();
tempEntity.Entity = item as EntityObject;
rManyE.FBEntities.Add(tempEntity);
}
//rManyE.FBEntities.ForEach(item =>
// {
// try
// {
// IEntityWithRelationships ie = item.Entity as IEntityWithRelationships;
// re.Remove(ie);
// }
// catch (Exception ex)
// {
// }
// });
}
//
// IRelatedEnd methods
//
public static bool IsEntityReference(this IRelatedEnd relatedEnd)
{
Type relationshipType = relatedEnd.GetType();
return(relationshipType.GetGenericTypeDefinition() == typeof(EntityReference <>));
}
private void AttachRelationManyEntity(FBEntity entity, IRelatedEnd re)
{
Type t = re.GetType();
Type eType = t.GetGenericArguments()[0];
if (!re.IsLoaded) re.Load();
RelationManyEntity rManyE = new RelationManyEntity();
rManyE.EntityType = eType.Name;
rManyE.RelationshipName = re.RelationshipName;
rManyE.PropertyName = re.TargetRoleName;
entity.CollectionEntity.Add(rManyE);
foreach (var item in re)
{
FBEntity tempEntity = new FBEntity();
tempEntity.Entity = item as EntityObject;
rManyE.FBEntities.Add(tempEntity);
}
//rManyE.FBEntities.ForEach(item =>
// {
// try
// {
// IEntityWithRelationships ie = item.Entity as IEntityWithRelationships;
// re.Remove(ie);
// }
// catch (Exception ex)
// {
// }
// });
}
