/// <summary>
/// Creates a <see cref="SaveResult"/>.
/// </summary>
/// <returns>The save result.</returns>
public SaveResult ToSaveResult()
{
var entities = new List <object>();
var deletedKeys = new List <EntityKey>();
foreach (var entityInfo in SaveMap.SelectMany(o => o.Value))
{
var state = entityInfo.EntityState;
if (state != EntityState.Detached)
{
entities.Add(entityInfo.ClientEntity);
}
if (state == EntityState.Deleted || state == EntityState.Detached)
{
deletedKeys.Add(new EntityKey(
BreezeHelper.GetBreezeTypeFullName(entityInfo.EntityType),
entityInfo.GetIdentifierValues()));
}
}
return(new SaveResult
{
Entities = entities,
KeyMappings = KeyMappings,
DeletedKeys = deletedKeys
});
}
private static ISessionImplementor GetSessionFromCollection(IEnumerable collection,
int depth,
Func <object, int, bool> predicate,
Func <Type, GetSessionDelegate> getTypeSessionGetter,
Predicate <Type> isEntityPredicate)
{
return(GetSession(collection, out var isProxy) ?? (isProxy ? null : GetSessionFromCollection()));
ISessionImplementor GetSessionFromCollection()
{
if (!predicate(collection, depth) || collection == null)
{
return(null);
}
depth++;
// Non generic collection
foreach (var item in collection)
{
var type = BreezeHelper.GetEntityType(item, false);
if (isEntityPredicate(type))
{
continue;
}
var session = GetSessionFromEntity(item, depth, predicate, getTypeSessionGetter);
if (session != null)
{
return(session);
}
}
return(null);
}
}
private EntityMetadata GetMetadata(string entityTypeName)
{
var entityName = BreezeHelper.GetEntityName(entityTypeName);
var metadata = _classMetadataProvider.Get(entityName);
if (metadata == null)
{
throw new InvalidOperationException($"Unknown entity name: {entityName}");
}
return(_entityMetadataProvider.GetMetadata(metadata.MappedClass));
}
private void InitializeObject(object item, ExpandNode expandNode)
{
if (item is INHibernateProxy nhProxy)
{
nhProxy.HibernateLazyInitializer.Initialize();
item = nhProxy.HibernateLazyInitializer.GetImplementation();
}
var metadata = _typeExpandMetadata.GetOrAdd(BreezeHelper.GetEntityType(item), CreateExpandMetadata);
foreach (var expand in expandNode.Expands.Values)
{
Initialize(metadata.GetPropertyValue(expand.PropertyName, item), expand);
}
}
/// <summary>
/// Gets the client entity identifier values.
/// </summary>
/// <returns>An array with identifier values.</returns>
public object[] GetIdentifierValues()
{
var propertyNames = EntityMetadata.IdentifierPropertyNames;
var values = new object[propertyNames.Count];
for (var i = 0; i < propertyNames.Count; i++)
{
var propertyName = propertyNames[i];
if (EntityMetadata.SyntheticForeignKeyProperties.TryGetValue(propertyName, out var syntheticProperty))
{
values[i] = BreezeHelper.ConvertToType(UnmappedValuesMap[propertyName], syntheticProperty.IdentifierType);
}
else
{
values[i] = EntityMetadata.IdentifierPropertyGetters[i](ClientEntity);
}
}
return(values);
}
private static ISessionImplementor GetSessionFromEntity(
object value,
int depth,
Func <object, int, bool> predicate,
Func <Type, GetSessionDelegate> getTypeSessionGetter)
{
return(GetSession(value, out var isProxy) ?? (isProxy ? null : GetSessionFromEntityRecursive()));
ISessionImplementor GetSessionFromEntityRecursive()
{
if (!predicate(value, depth) || value == null)
{
return(null);
}
var sessionGetter = getTypeSessionGetter(BreezeHelper.GetEntityType(value, false));
return(sessionGetter.Invoke(value, depth + 1, predicate));
}
}
private ClientModelMetadata Create(Type clientType)
{
if (!IsClientModel(clientType))
{
return(null);
}
var properties = clientType.GetProperties().ToDictionary(o => o.Name);
var syntheticProperties = new List <SyntheticForeignKeyProperty>();
var associations = new Dictionary <string, Association>();
var clientProperties = new List <ClientModelProperty>(properties.Count);
foreach (var property in clientType.GetProperties())
{
var propertyType = property.PropertyType;
if (property.GetCustomAttribute <ComplexTypeAttribute>() != null)
{
clientProperties.Add(new ClientModelProperty(
property.Name,
propertyType,
true,
null,
true,
false,
false,
false));
continue;
}
var isCollection = propertyType.IsGenericType && typeof(IEnumerable).IsAssignableFrom(propertyType);
var elementType = isCollection ? propertyType.GetGenericArguments()[0] : propertyType;
var relatedEntityMetadata = _entityMetadataProvider.IsEntityType(elementType)
? _entityMetadataProvider.GetMetadata(elementType)
: null;
if (relatedEntityMetadata != null || IsClientModel(elementType))
{
clientProperties.Add(
isCollection
// Add a one to many relation
? CreateCollectionNavigationProperty(
clientType,
property,
elementType,
relatedEntityMetadata,
associations)
// Add a many to one relation
: CreateEntityNavigationProperty(
clientType,
property,
properties,
relatedEntityMetadata,
syntheticProperties,
associations)
);
continue;
}
clientProperties.Add(new ClientModelProperty(
property.Name,
propertyType,
false,
_dataTypeProvider.GetDataType(propertyType),
BreezeHelper.IsNullable(propertyType),
property.Name == nameof(IClientModel.Id),
false,
false));
}
return(new ClientModelMetadata(
clientType,
null, // TODO: base type
AutoGeneratedKeyType.KeyGenerator,
clientProperties,
syntheticProperties.ToDictionary(o => o.Name),
new List <Type>(), // TODO: base type
new List <string>(), // TODO: base type
IdentifierPropertyNames,
IdentifierPropertyGetters,
IdentifierPropertyTypes,
IdentifierPropertyDataTypes,
IdentifierPropertyTypeLengths,
new HashSet <string>(associations.Values.Where(o => o.IsScalar).SelectMany(o => o.ForeignKeyPropertyNames)),
associations
));
}
