/// <summary>
/// This is an internal API that supports the Entity Framework Core infrastructure and not subject to
/// the same compatibility standards as public APIs. It may be changed or removed without notice in
/// any release. You should only use it directly in your code with extreme caution and knowing that
/// doing so can result in application failures when updating to a new Entity Framework Core release.
/// </summary>
public ColumnBase([NotNull] string name, [NotNull] string type, [NotNull] TableBase table)
{
Name = name;
StoreType = type;
Table = table;
}
/// <summary>
/// This is an internal API that supports the Entity Framework Core infrastructure and not subject to
/// the same compatibility standards as public APIs. It may be changed or removed without notice in
/// any release. You should only use it directly in your code with extreme caution and knowing that
/// doing so can result in application failures when updating to a new Entity Framework Core release.
/// </summary>
public ColumnBase(string name, string type, TableBase table)
{
Name = name;
StoreType = type;
Table = table;
}
private static void PopulateInternalForeignKeys(TableBase table)
{
SortedDictionary <IEntityType, IEnumerable <IForeignKey> > internalForeignKeyMap = null;
SortedDictionary <IEntityType, IEnumerable <IForeignKey> > referencingInternalForeignKeyMap = null;
foreach (var entityTypeMapping in ((ITableBase)table).EntityTypeMappings)
{
var entityType = entityTypeMapping.EntityType;
var primaryKey = entityType.FindPrimaryKey();
if (primaryKey == null)
{
continue;
}
SortedSet <IForeignKey> internalForeignKeys = null;
foreach (var foreignKey in entityType.FindForeignKeys(primaryKey.Properties))
{
if (foreignKey.IsUnique &&
foreignKey.PrincipalKey.IsPrimaryKey() &&
!foreignKey.IsIntraHierarchical() &&
((ITableBase)table).EntityTypeMappings.Any(m => m.EntityType == foreignKey.PrincipalEntityType))
{
if (internalForeignKeys == null)
{
internalForeignKeys = new SortedSet <IForeignKey>(ForeignKeyComparer.Instance);
}
internalForeignKeys.Add(foreignKey);
if (referencingInternalForeignKeyMap == null)
{
referencingInternalForeignKeyMap =
new SortedDictionary <IEntityType, IEnumerable <IForeignKey> >(EntityTypePathComparer.Instance);
}
var principalEntityType = foreignKey.PrincipalEntityType;
if (!referencingInternalForeignKeyMap.TryGetValue(principalEntityType, out var internalReferencingForeignKeys))
{
internalReferencingForeignKeys = new SortedSet <IForeignKey>(ForeignKeyComparer.Instance);
referencingInternalForeignKeyMap[principalEntityType] = internalReferencingForeignKeys;
}
((SortedSet <IForeignKey>)internalReferencingForeignKeys).Add(foreignKey);
}
}
if (internalForeignKeys != null)
{
if (internalForeignKeyMap == null)
{
internalForeignKeyMap =
new SortedDictionary <IEntityType, IEnumerable <IForeignKey> >(EntityTypePathComparer.Instance);
table.InternalForeignKeys = internalForeignKeyMap;
}
internalForeignKeyMap[entityType] = internalForeignKeys;
}
if (internalForeignKeys == null &&
((ITableBase)table).EntityTypeMappings.Any(m => !m.EntityType.IsSameHierarchy(entityType)))
{
table.IsSplit = true;
}
}
if (referencingInternalForeignKeyMap != null)
{
table.ReferencingInternalForeignKeys = referencingInternalForeignKeyMap;
}
}
