// <summary>
// Create a column map for a ref type
// </summary>
// <param name="typeInfo"> Type information for the ref type </param>
// <param name="name"> Name of the column </param>
// <returns> Column map for the ref type </returns>
private RefColumnMap CreateRefColumnMap(TypeInfo typeInfo, string name)
{
SimpleColumnMap entitySetIdColumnMap = null;
if (typeInfo.HasEntitySetIdProperty)
{
entitySetIdColumnMap = CreateSimpleColumnMap(
md.Helper.GetModelTypeUsage(typeInfo.EntitySetIdProperty), c_EntitySetIdColumnName);
}
// get the target entity type,
var entityType = (md.EntityType)(TypeHelpers.GetEdmType <md.RefType>(typeInfo.Type).ElementType);
// Iterate through the list of "key" properties
var keyColList = new SimpleColumnMap[entityType.KeyMembers.Count];
for (var i = 0; i < keyColList.Length; ++i)
{
var property = entityType.KeyMembers[i];
keyColList[i] = CreateSimpleColumnMap(md.Helper.GetModelTypeUsage(property), property.Name);
}
// Create the entity identity
var identity = CreateEntityIdentity(entityType, entitySetIdColumnMap, keyColList);
var result = new RefColumnMap(typeInfo.Type, name, identity);
return(result);
}
internal override void Visit(RefColumnMap columnMap, int dummy)
{
this.Append("Ref-", columnMap.EntityIdentity);
EntityType referencedEntityType;
TypeHelpers.TryGetRefEntityType(columnMap.Type, out referencedEntityType);
this.Append(",T", (EdmType)referencedEntityType);
}
/// <summary>
/// RefColumnMap
/// </summary>
/// <param name="columnMap"></param>
/// <param name="translationDelegate"></param>
/// <returns></returns>
internal override ColumnMap Visit(RefColumnMap columnMap, ColumnMapTranslatorTranslationDelegate translationDelegate)
{
EntityIdentity newEntityIdentity = VisitEntityIdentity(columnMap.EntityIdentity, translationDelegate);
if (newEntityIdentity != columnMap.EntityIdentity)
{
columnMap = new RefColumnMap(columnMap.Type, columnMap.Name, newEntityIdentity);
}
return(translationDelegate(columnMap));
}
internal override void Visit(RefColumnMap columnMap, int dummy)
{
Append("Ref-", columnMap.EntityIdentity);
EntityType referencedEntityType;
var isRefType = TypeHelpers.TryGetRefEntityType(columnMap.Type, out referencedEntityType);
Debug.Assert(isRefType, "RefColumnMap is not of RefType?");
Append(",T", referencedEntityType);
}
/// <summary>
/// Create a column map for a ref type
/// </summary>
/// <param name="typeInfo">Type information for the ref type</param>
/// <param name="name">Name of the column</param>
/// <returns>Column map for the ref type</returns>
private RefColumnMap CreateRefColumnMap(TypeInfo typeInfo, string name)
{
SimpleColumnMap entitySetIdColumnMap = null;
if (typeInfo.HasEntitySetIdProperty)
{
entitySetIdColumnMap = CreateSimpleColumnMap(md.Helper.GetModelTypeUsage(typeInfo.EntitySetIdProperty), c_EntitySetIdColumnName);
}
// get the target entity type,
md.EntityType entityType = (md.EntityType)(TypeHelpers.GetEdmType<md.RefType>(typeInfo.Type).ElementType);
// Iterate through the list of "key" properties
SimpleColumnMap[] keyColList = new SimpleColumnMap[entityType.KeyMembers.Count];
for (int i = 0; i < keyColList.Length; ++i)
{
md.EdmMember property = entityType.KeyMembers[i];
keyColList[i] = CreateSimpleColumnMap(md.Helper.GetModelTypeUsage(property), property.Name);
}
// Create the entity identity
EntityIdentity identity = CreateEntityIdentity(entityType, entitySetIdColumnMap, keyColList);
RefColumnMap result = new RefColumnMap(typeInfo.Type, name, identity);
return result;
}
public void TranslateColumnMap_returns_correct_columntypes_and_nullablecolumns_for_associations()
{
var metadataWorkspaceMock = new Mock <MetadataWorkspace>();
metadataWorkspaceMock.Setup(m => m.GetQueryCacheManager()).Returns(QueryCacheManager.Create());
var codeFirstOSpaceTypeFactory = new CodeFirstOSpaceTypeFactory();
var refEntityColumnMap = (EntityColumnMap)BuildSimpleEntitySetColumnMap(metadataWorkspaceMock, codeFirstOSpaceTypeFactory).Element;
var cSpaceEntityType = new EntityType(typeof(RefEntity).Name, "N", DataSpace.CSpace);
cSpaceEntityType.AddMember(new EdmProperty("Id", TypeUsage.Create(PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32))));
var navigationProperty = new NavigationProperty("SimpleEntity", TypeUsage.Create(refEntityColumnMap.Type.EdmType));
var associationType = new AssociationType("A", "N", false, DataSpace.CSpace);
associationType.AddMember(
new AssociationEndMember("From", new RefType(cSpaceEntityType), RelationshipMultiplicity.One));
associationType.AddMember(
new AssociationEndMember("To", new RefType((EntityType)navigationProperty.TypeUsage.EdmType), RelationshipMultiplicity.One));
associationType.SetReadOnly();
navigationProperty.RelationshipType = associationType;
navigationProperty.FromEndMember = associationType.RelationshipEndMembers[0];
navigationProperty.ToEndMember = associationType.RelationshipEndMembers[1];
cSpaceEntityType.AddMember(navigationProperty);
var entityTypeUsage = TypeUsage.Create(cSpaceEntityType);
var oSpaceEntityType = codeFirstOSpaceTypeFactory.TryCreateType(typeof(RefEntity), cSpaceEntityType);
codeFirstOSpaceTypeFactory.CspaceToOspace.Add(cSpaceEntityType, oSpaceEntityType);
var associations = new EdmItemCollection();
associations.AddInternal(associationType);
codeFirstOSpaceTypeFactory.CreateRelationships(associations);
foreach (var resolve in codeFirstOSpaceTypeFactory.ReferenceResolutions)
{
resolve();
}
var idScalarMap = new ScalarColumnMap(TypeUsage.Create(PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32)), "Id", 0, 1);
var refColumnMap = new RefColumnMap(
associationType.RelationshipEndMembers[1].TypeUsage, "E",
new SimpleEntityIdentity(null, new SimpleColumnMap[] { idScalarMap }));
var collectionMap = new SimpleCollectionColumnMap(
entityTypeUsage, "MockCollectionType", refColumnMap, null, null);
metadataWorkspaceMock.Setup(m => m.GetItem <EdmType>("N.RefEntity", DataSpace.OSpace))
.Returns(oSpaceEntityType);
var factory =
new Translator().TranslateColumnMap <object>(
collectionMap, metadataWorkspaceMock.Object, new SpanIndex(), MergeOption.NoTracking, streaming: false, valueLayer: false);
Assert.NotNull(factory);
Assert.Equal(new[] { null, typeof(int) }, factory.ColumnTypes);
Assert.Equal(new[] { false, true }, factory.NullableColumns);
}
internal virtual void Visit(RefColumnMap columnMap, TArgType arg)
{
VisitEntityIdentity(columnMap.EntityIdentity, arg);
}
internal abstract TResultType Visit(RefColumnMap columnMap, TArgType arg);
public void TranslateColumnMap_returns_correct_columntypes_and_nullablecolumns_for_associations()
{
var metadataWorkspaceMock = new Mock<MetadataWorkspace>();
metadataWorkspaceMock.Setup(m => m.GetQueryCacheManager()).Returns(QueryCacheManager.Create());
var codeFirstOSpaceTypeFactory = new CodeFirstOSpaceTypeFactory();
var refEntityColumnMap = (EntityColumnMap)BuildSimpleEntitySetColumnMap(metadataWorkspaceMock, codeFirstOSpaceTypeFactory).Element;
var cSpaceEntityType = new EntityType(typeof(RefEntity).Name, "N", DataSpace.CSpace);
cSpaceEntityType.AddMember(new EdmProperty("Id", TypeUsage.Create(PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32))));
var navigationProperty = new NavigationProperty("SimpleEntity", TypeUsage.Create(refEntityColumnMap.Type.EdmType));
var associationType = new AssociationType("A", "N", false, DataSpace.CSpace);
associationType.AddMember(
new AssociationEndMember("From", new RefType(cSpaceEntityType), RelationshipMultiplicity.One));
associationType.AddMember(
new AssociationEndMember("To", new RefType((EntityType)navigationProperty.TypeUsage.EdmType), RelationshipMultiplicity.One));
associationType.SetReadOnly();
navigationProperty.RelationshipType = associationType;
navigationProperty.FromEndMember = associationType.RelationshipEndMembers[0];
navigationProperty.ToEndMember = associationType.RelationshipEndMembers[1];
cSpaceEntityType.AddMember(navigationProperty);
var entityTypeUsage = TypeUsage.Create(cSpaceEntityType);
var oSpaceEntityType = codeFirstOSpaceTypeFactory.TryCreateType(typeof(RefEntity), cSpaceEntityType);
codeFirstOSpaceTypeFactory.CspaceToOspace.Add(cSpaceEntityType, oSpaceEntityType);
var associations = new EdmItemCollection();
associations.AddInternal(associationType);
codeFirstOSpaceTypeFactory.CreateRelationships(associations);
foreach (var resolve in codeFirstOSpaceTypeFactory.ReferenceResolutions)
{
resolve();
}
var idScalarMap = new ScalarColumnMap(TypeUsage.Create(PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32)), "Id", 0, 1);
var refColumnMap = new RefColumnMap(
associationType.RelationshipEndMembers[1].TypeUsage, "E",
new SimpleEntityIdentity(null, new SimpleColumnMap[] { idScalarMap }));
var collectionMap = new SimpleCollectionColumnMap(
entityTypeUsage, "MockCollectionType", refColumnMap, null, null);
metadataWorkspaceMock.Setup(m => m.GetItem<EdmType>("N.RefEntity", DataSpace.OSpace))
.Returns(oSpaceEntityType);
var factory =
new Translator().TranslateColumnMap<object>(
collectionMap, metadataWorkspaceMock.Object, new SpanIndex(), MergeOption.NoTracking, streaming: false, valueLayer: false);
Assert.NotNull(factory);
Assert.Equal(new[] { null, typeof(int) }, factory.ColumnTypes);
Assert.Equal(new[] { false, true }, factory.NullableColumns);
}
