public static InternalEntityEntry GetPrincipalEntityEntryCurrentValue(this ChangeTracker changeTracker, InternalEntityEntry targetEntity, IForeignKey foreignKey)
{
IEnumerable <InternalEntityEntry> targetEntities = changeTracker.GetStateManager().Entries.Where(p => Equals(p.EntityType.ClrType, foreignKey.PrincipalEntityType.ClrType));
// IEnumerable<InternalEntityEntry> targetEntities = changeTracker.Entries().Where(p => p. Equals(p.EntityType.ClrType, foreignKey.PrincipalEntityType.ClrType));
InternalEntityEntry principalEntityEntry = null;
foreach (InternalEntityEntry entityEntry in targetEntities)
{
bool result = true;
for (int i = 0; i < foreignKey.Properties.Count; i++)
{
object foreignValue = targetEntity.GetCurrentValue(foreignKey.Properties[i]);
object principalValue = entityEntry.GetCurrentValue(foreignKey.PrincipalKey.Properties[i]);
if (!Equals(foreignValue, principalValue))
{
result = false;
break;
}
}
if (result)
{
principalEntityEntry = entityEntry;
}
}
return(principalEntityEntry);
}
public void StateChanging(InternalEntityEntry entry, EntityState newState)
{
var entity = entry.Entity as ITranslatable;
if (entity != null)
{
if (entry.EntityState == EntityState.Detached && newState == EntityState.Unchanged)
{
var props = entry.EntityType.GetProperties().Where(p => p.Name.StartsWith("Name_")).ToList();
foreach (var prop in props)
{
entity.Translation.Set(prop.Name.Split('_')[0], entry.GetCurrentValue(prop), prop.Name.Split('_')[1]);
}
}
if (entry.EntityState == EntityState.Detached && newState == EntityState.Added)
{
foreach (var item in entity.Translation.GetItems())
{
var prop = entry.EntityType.FindProperty($"{item.Property}_{item.Language}");
entry.SetCurrentValue(prop, item.Value);
}
}
}
}
public T GetValue <T>(InternalEntityEntry entry, IProperty property, int index)
{
if (index == -1)
{
throw new InvalidOperationException(
CoreStrings.OriginalValueNotTracked(property.Name, property.DeclaringEntityType.DisplayName()));
}
return(IsEmpty ? entry.GetCurrentValue <T>(property) : _values.GetValue <T>(index));
}
public void StateChanging(InternalEntityEntry entry, EntityState newState)
{
Console.WriteLine(
" Changing {0} from {1} to {2}.",
entry.Entity.GetType().Name, entry.EntityState, newState);
if (newState != EntityState.Added && newState != EntityState.Modified)
{
return;
}
var set = services.GetRequiredService <ICultureSet>();
var type = entry.Entity.GetType();
var properties = type.GetProperties().Where(y => y.GetCustomAttribute <LocalizedAttribute>() != null).ToList();
foreach (var y in properties)
{
try
{
var origin = entry.GetOriginalValue(entry.EntityType.FindProperty(y.Name));
var current = entry.GetCurrentValue(entry.EntityType.FindProperty(y.Name));
var cultureProvider = services.GetRequiredService <ICultureProvider>();
var culture = cultureProvider.DetermineCulture();
culture = set.SimplifyCulture(culture);
Dictionary <string, string> json;
if (newState == EntityState.Added)
{
json = new Dictionary <string, string>();
}
else
{
json = JsonConvert.DeserializeObject <Dictionary <string, string> >(origin.ToString());
}
if (json.ContainsKey(culture))
{
json[culture] = current.ToString();
}
else
{
json.Add(culture, current.ToString());
}
entry.SetProperty(entry.EntityType.FindProperty(y.Name), JsonConvert.SerializeObject(json));
}
catch
{
break;
}
}
}
public void StateChanging(InternalEntityEntry entry, EntityState newState)
{
if (!(newState == EntityState.Added && entry.EntityState == EntityState.Detached || newState == EntityState.Modified && entry.EntityState == EntityState.Unchanged))
{
return;
}
var set = services.GetRequiredService <ICultureSet>();
var type = entry.Entity.GetType();
var properties = type.GetProperties().Where(y => y.GetCustomAttribute <LocalizedAttribute>() != null).ToList();
foreach (var y in properties)
{
try
{
var origin = entry.GetOriginalValue(entry.EntityType.FindProperty(y.Name));
var current = entry.GetCurrentValue(entry.EntityType.FindProperty(y.Name));
var cultureProvider = services.GetRequiredService <ICultureProvider>();
var culture = cultureProvider.DetermineCulture();
culture = set.SimplifyCulture(culture);
Dictionary <string, string> dic;
if (newState == EntityState.Added)
{
dic = new Dictionary <string, string>();
}
else
{
dic = JsonConvert.DeserializeObject <Dictionary <string, string> >(origin.ToString());
}
if (dic.ContainsKey(culture))
{
dic[culture] = current.ToString();
}
else
{
dic.Add(culture, current.ToString());
}
var json = JsonConvert.SerializeObject(dic);
writePropertyValue.Invoke(entry, new object[] { entry.EntityType.FindProperty(y.Name), json });
}
catch (Exception ex)
{
break;
}
}
}
public override void AddEntity(Object dataContext, ODataResourceBase entry)
{
var context = (DbContext)dataContext;
EntityEntry <TEntity> entityEntry = context.Add(CreateEntity(context, entry));
InternalEntityEntry internalEntityEntry = entityEntry.GetInfrastructure();
IReadOnlyList <IProperty> keyProperties = _entityType.FindPrimaryKey().Properties;
for (int i = 0; i < keyProperties.Count; i++)
{
if (keyProperties[i].ValueGenerated == ValueGenerated.OnAdd)
{
Object value = internalEntityEntry.GetCurrentValue(keyProperties[i]);
internalEntityEntry.SetTemporaryValue(keyProperties[i], value, false);
}
}
}
public void StateChanging(InternalEntityEntry entry, EntityState newState)
{
Console.WriteLine(
" Changing {0} from {1} to {2}.",
entry.Entity.GetType().Name, entry.EntityState, newState);
if (newState != EntityState.Added && newState != EntityState.Modified)
return;
var set = services.GetRequiredService<ICultureSet>();
var type = entry.Entity.GetType();
var properties = type.GetProperties().Where(y => y.GetCustomAttribute<LocalizedAttribute>() != null).ToList();
foreach (var y in properties)
{
try
{
var origin = entry.GetOriginalValue(entry.EntityType.FindProperty(y.Name));
var current = entry.GetCurrentValue(entry.EntityType.FindProperty(y.Name));
var cultureProvider = services.GetRequiredService<ICultureProvider>();
var culture = cultureProvider.DetermineCulture();
culture = set.SimplifyCulture(culture);
Dictionary<string, string> json;
if (newState == EntityState.Added)
json = new Dictionary<string, string>();
else
json = JsonConvert.DeserializeObject<Dictionary<string, string>>(origin.ToString());
if (json.ContainsKey(culture))
json[culture] = current.ToString();
else
json.Add(culture, current.ToString());
entry.SetProperty(entry.EntityType.FindProperty(y.Name), JsonConvert.SerializeObject(json));
}
catch
{
break;
}
}
}
public bool TryPropagate(IProperty property, InternalEntityEntry entry)
{
if (_write &&
(entry.EntityState == EntityState.Unchanged ||
(entry.EntityState == EntityState.Modified && !entry.IsModified(property)) ||
(entry.EntityState == EntityState.Added && Equals(_originalValue, entry.GetCurrentValue(property)))))
{
entry[property] = _currentValue;
return(false);
}
return(_write);
}
/// <summary> /// This API supports the Entity Framework Core infrastructure and is not intended to be used /// directly from your code. This API may change or be removed in future releases. /// </summary> public virtual IProperty FindNullPropertyInCurrentValues(InternalEntityEntry entry) => Properties.FirstOrDefault(p => entry.GetCurrentValue(p) == null);
public T GetValue <T>(InternalEntityEntry entry, IPropertyBase propertyBase, int index)
=> IsEmpty
? entry.GetCurrentValue <T>(propertyBase)
: _values.GetValue <T>(index);
public bool TryPropagate(IProperty property, InternalEntityEntry entry)
{
if (_write
#pragma warning disable EF1001 // Internal EF Core API usage.
&& (entry.EntityState == EntityState.Unchanged ||
(entry.EntityState == EntityState.Modified && !entry.IsModified(property)) ||
(entry.EntityState == EntityState.Added && Equals(_originalValue, entry.GetCurrentValue(property)))))
#pragma warning restore EF1001 // Internal EF Core API usage.
{
entry[property] = _currentValue;
return(false);
}
return(_write);
}
