public void Can_get_and_set_constraint_via_wrapper_property()
{
var associationType
= new AssociationType("A", XmlConstants.ModelNamespace_3, false, DataSpace.CSpace)
{
SourceEnd = new AssociationEndMember("S", new EntityType("E", "N", DataSpace.CSpace)),
TargetEnd = new AssociationEndMember("T", new EntityType("E", "N", DataSpace.CSpace))
};
Assert.Null(associationType.Constraint);
Assert.False(associationType.IsForeignKey);
var property
= EdmProperty.CreatePrimitive("Fk", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.String));
var referentialConstraint
= new ReferentialConstraint(
associationType.SourceEnd,
associationType.TargetEnd,
new[] { property },
new[] { property });
associationType.Constraint = referentialConstraint;
Assert.Same(referentialConstraint, associationType.Constraint);
Assert.True(associationType.IsForeignKey);
}
public void Apply_should_set_principal_end_kind_to_required_when_all_properties_not_nullable()
{
var associationType = new AssociationType("A", XmlConstants.ModelNamespace_3, false, DataSpace.CSpace);
associationType.SourceEnd = new AssociationEndMember("S", new EntityType("E", "N", DataSpace.CSpace));
associationType.TargetEnd = new AssociationEndMember("T", new EntityType("E", "N", DataSpace.CSpace));
associationType.SourceEnd.RelationshipMultiplicity = RelationshipMultiplicity.ZeroOrOne;
var property1 = EdmProperty.CreatePrimitive("P1", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.String));
var property2 = EdmProperty.CreatePrimitive("P2", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.String));
var associationConstraint
= new ReferentialConstraint(
associationType.SourceEnd,
associationType.TargetEnd,
new[]
{
property1,
property2
},
new[]
{
property1,
property2
});
associationConstraint.ToProperties.Each(p => p.Nullable = false);
associationType.Constraint = associationConstraint;
(new ForeignKeyAssociationMultiplicityConvention())
.Apply(associationType, new DbModel(new EdmModel(DataSpace.CSpace), null));
Assert.True(associationType.SourceEnd.IsRequired());
}
internal ForeignKeyConstraint(RelationshipSet relationshipSet, ReferentialConstraint constraint)
{
var assocSet = relationshipSet as AssociationSet;
var fromEnd = constraint.FromRole as AssociationEndMember;
var toEnd = constraint.ToRole as AssociationEndMember;
// Currently only Associations are supported
if (null == assocSet || null == fromEnd
|| null == toEnd)
{
throw new NotSupportedException();
}
m_constraint = constraint;
var parent = MetadataHelper.GetEntitySetAtEnd(assocSet, fromEnd);
// relationshipSet.GetRelationshipEndExtent(constraint.FromRole);
var child = MetadataHelper.GetEntitySetAtEnd(assocSet, toEnd); // relationshipSet.GetRelationshipEndExtent(constraint.ToRole);
m_extentPair = new ExtentPair(parent, child);
m_childKeys = new List<string>();
foreach (var prop in constraint.ToProperties)
{
m_childKeys.Add(prop.Name);
}
m_parentKeys = new List<string>();
foreach (var prop in constraint.FromProperties)
{
m_parentKeys.Add(prop.Name);
}
PlanCompiler.Assert(
(RelationshipMultiplicity.ZeroOrOne == fromEnd.RelationshipMultiplicity
|| RelationshipMultiplicity.One == fromEnd.RelationshipMultiplicity),
"from-end of relationship constraint cannot have multiplicity greater than 1");
}
public void Apply_is_noop_when_existing_constraint()
{
var associationType = new AssociationType("A", XmlConstants.ModelNamespace_3, false, DataSpace.CSpace);
associationType.SourceEnd = new AssociationEndMember("S", new EntityType("E", "N", DataSpace.CSpace));
associationType.TargetEnd = new AssociationEndMember("T", new EntityType("E", "N", DataSpace.CSpace));
var property = EdmProperty.Primitive("Fk", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.String));
var associationConstraint
= new ReferentialConstraint(
associationType.SourceEnd,
associationType.TargetEnd,
new[] { property },
new[] { property });
associationType.Constraint = associationConstraint;
var navigationProperty = new NavigationProperty("N", TypeUsage.Create(new EntityType("E", "N", DataSpace.CSpace)))
{
RelationshipType = associationType
};
((IEdmConvention<NavigationProperty>)new ForeignKeyNavigationPropertyAttributeConvention())
.Apply(navigationProperty, new EdmModel(DataSpace.CSpace));
Assert.Same(associationConstraint, navigationProperty.Association.Constraint);
}
public void Apply_should_transfer_constraint_and_clr_property_info_annotation()
{
EdmModel model
= new TestModelBuilder()
.Entities("S", "T")
.Association("S", RelationshipMultiplicity.ZeroOrOne, "T", RelationshipMultiplicity.Many)
.Association("T", RelationshipMultiplicity.Many, "S", RelationshipMultiplicity.ZeroOrOne);
var association2 = model.AssociationTypes.Last();
var mockPropertyInfo = new MockPropertyInfo();
association2.SourceEnd.SetClrPropertyInfo(mockPropertyInfo);
var referentialConstraint
= new ReferentialConstraint(
association2.SourceEnd,
association2.TargetEnd,
new[] { new EdmProperty("P") },
new[] { new EdmProperty("D") });
association2.Constraint = referentialConstraint;
((IEdmConvention)new AssociationInverseDiscoveryConvention()).Apply(model);
Assert.Equal(1, model.AssociationTypes.Count());
Assert.Equal(1, model.Containers.Single().AssociationSets.Count());
var associationType = model.AssociationTypes.Single();
Assert.NotSame(association2, associationType);
Assert.Same(referentialConstraint, associationType.Constraint);
Assert.Same(associationType.SourceEnd, referentialConstraint.FromRole);
Assert.Same(associationType.TargetEnd, referentialConstraint.ToRole);
Assert.Same(mockPropertyInfo.Object, associationType.TargetEnd.GetClrPropertyInfo());
}
public void Create_throws_argument_exception_when_called_with_null_or_empty_arguments()
{
var source = new EntityType("Source", "Namespace", DataSpace.CSpace);
var target = new EntityType("Target", "Namespace", DataSpace.CSpace);
var sourceEnd = new AssociationEndMember("SourceEnd", source);
var targetEnd = new AssociationEndMember("TargetEnd", target);
var constraint =
new ReferentialConstraint(
sourceEnd,
targetEnd,
new[] { new EdmProperty("SourceProperty") },
new[] { new EdmProperty("TargetProperty") });
var associationType =
AssociationType.Create(
"AssociationType",
"Namespace",
true,
DataSpace.CSpace,
sourceEnd,
targetEnd,
constraint,
Enumerable.Empty<MetadataProperty>());
var sourceSet = new EntitySet("SourceSet", "Schema", "Table", "Query", source);
var targetSet = new EntitySet("TargetSet", "Schema", "Table", "Query", target);
var metadataProperty =
new MetadataProperty(
"MetadataProperty",
TypeUsage.CreateDefaultTypeUsage(PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.String)),
"value");
// name is null
Assert.Throws<ArgumentException>(
() => AssociationSet.Create(
null,
associationType,
sourceSet,
targetSet,
new [] { metadataProperty }));
// name is empty
Assert.Throws<ArgumentException>(
() => AssociationSet.Create(
String.Empty,
associationType,
sourceSet,
targetSet,
new[] { metadataProperty }));
// type is null
Assert.Throws<ArgumentNullException>(
() => AssociationSet.Create(
"AssociationSet",
null,
sourceSet,
targetSet,
new[] { metadataProperty }));
}
public void Create_throws_argument_exception_when_called_with_null_or_empty_arguments()
{
var source = new EntityType("Source", "Namespace", DataSpace.CSpace);
var target = new EntityType("Target", "Namespace", DataSpace.CSpace);
var sourceEnd = new AssociationEndMember("SourceEnd", source);
var targetEnd = new AssociationEndMember("TargetEnd", target);
var constraint =
new ReferentialConstraint(
sourceEnd,
targetEnd,
new[] { new EdmProperty("SourceProperty") },
new[] { new EdmProperty("TargetProperty") });
var associationType =
AssociationType.Create(
"AssociationType",
"Namespace",
true,
DataSpace.CSpace,
sourceEnd,
targetEnd,
constraint,
Enumerable.Empty <MetadataProperty>());
var sourceSet = new EntitySet("SourceSet", "Schema", "Table", "Query", source);
var targetSet = new EntitySet("TargetSet", "Schema", "Table", "Query", target);
var metadataProperty =
new MetadataProperty(
"MetadataProperty",
TypeUsage.CreateDefaultTypeUsage(PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.String)),
"value");
// name is null
Assert.Throws <ArgumentException>(
() => AssociationSet.Create(
null,
associationType,
sourceSet,
targetSet,
new [] { metadataProperty }));
// name is empty
Assert.Throws <ArgumentException>(
() => AssociationSet.Create(
String.Empty,
associationType,
sourceSet,
targetSet,
new[] { metadataProperty }));
// type is null
Assert.Throws <ArgumentNullException>(
() => AssociationSet.Create(
"AssociationSet",
null,
sourceSet,
targetSet,
new[] { metadataProperty }));
}
protected override void VisitEdmAssociationConstraint(ReferentialConstraint item)
{
_schemaWriter.WriteReferentialConstraintElementHeader();
_schemaWriter.WriteReferentialConstraintRoleElement(
XmlConstants.PrincipalRole, item.FromRole, item.FromProperties);
_schemaWriter.WriteReferentialConstraintRoleElement(
XmlConstants.DependentRole, item.ToRole, item.ToProperties);
VisitMetadataItem(item);
_schemaWriter.WriteEndElement();
}
public void FromProperties_lazy_loaded_when_none_present()
{
var principalEntity = new EntityType("E", "N", DataSpace.CSpace);
principalEntity.AddKeyMember(new EdmProperty("K"));
var referentialConstraint
= new ReferentialConstraint(
new AssociationEndMember("P", principalEntity),
new AssociationEndMember("D", new EntityType("E", "N", DataSpace.CSpace)),
Enumerable.Empty<EdmProperty>(),
Enumerable.Empty<EdmProperty>());
Assert.NotEmpty(referentialConstraint.FromProperties);
}
public void FromProperties_lazy_loaded_when_none_present()
{
var principalEntity = new EntityType("E", "N", DataSpace.CSpace);
principalEntity.AddKeyMember(new EdmProperty("K"));
var referentialConstraint
= new ReferentialConstraint(
new AssociationEndMember("P", principalEntity),
new AssociationEndMember("D", new EntityType("E", "N", DataSpace.CSpace)),
Enumerable.Empty <EdmProperty>(),
Enumerable.Empty <EdmProperty>());
Assert.NotEmpty(referentialConstraint.FromProperties);
}
public void Create_sets_properties_and_seals_the_instance()
{
var source = new EntityType("Source", "Namespace", DataSpace.CSpace);
var target = new EntityType("Target", "Namespace", DataSpace.CSpace);
var sourceEnd = new AssociationEndMember("SourceEnd", source);
var targetEnd = new AssociationEndMember("TargetEnd", target);
var constraint =
new ReferentialConstraint(
sourceEnd,
targetEnd,
new[] { new EdmProperty("SourceProperty") },
new[] { new EdmProperty("TargetProperty") });
var associationType =
AssociationType.Create(
"AssociationType",
"Namespace",
true,
DataSpace.CSpace,
sourceEnd,
targetEnd,
constraint,
Enumerable.Empty <MetadataProperty>());
var sourceSet = new EntitySet("SourceSet", "Schema", "Table", "Query", source);
var targetSet = new EntitySet("TargetSet", "Schema", "Table", "Query", target);
var metadataProperty =
new MetadataProperty(
"MetadataProperty",
TypeUsage.CreateDefaultTypeUsage(PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.String)),
"value");
var associationSet =
AssociationSet.Create(
"AssociationSet",
associationType,
sourceSet,
targetSet,
new[] { metadataProperty });
Assert.Equal("AssociationSet", associationSet.Name);
Assert.Same(associationType, associationSet.ElementType);
Assert.Same(sourceSet, associationSet.SourceSet);
Assert.Same(targetSet, associationSet.TargetSet);
Assert.Same(source, associationSet.SourceEnd.GetEntityType());
Assert.Same(target, associationSet.TargetEnd.GetEntityType());
Assert.Same(metadataProperty, associationSet.MetadataProperties.SingleOrDefault(p => p.Name == "MetadataProperty"));
Assert.True(associationSet.IsReadOnly);
}
public void Can_set_and_get_dependent_end()
{
var dependentEnd1 = new AssociationEndMember("D", new EntityType());
var referentialConstraint
= new ReferentialConstraint(
new AssociationEndMember("P", new EntityType()),
dependentEnd1,
new[] { EdmProperty.Primitive("P", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32)) },
new[] { EdmProperty.Primitive("D", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32)) });
Assert.Same(dependentEnd1, referentialConstraint.DependentEnd);
var dependentEnd2 = new AssociationEndMember("D2", new EntityType());
referentialConstraint.DependentEnd = dependentEnd2;
Assert.Same(dependentEnd2, referentialConstraint.DependentEnd);
}
public void Can_set_and_get_to_role()
{
var toRole = new AssociationEndMember("D", new EntityType("E", "N", DataSpace.CSpace));
var referentialConstraint
= new ReferentialConstraint(
new AssociationEndMember("P", new EntityType("E", "N", DataSpace.CSpace)),
toRole,
new[] { EdmProperty.Primitive("P", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32)) },
new[] { EdmProperty.Primitive("D", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32)) });
Assert.Same(toRole, referentialConstraint.ToRole);
var toRole2 = new AssociationEndMember("D2", new EntityType("E", "N", DataSpace.CSpace));
referentialConstraint.ToRole = toRole2;
Assert.Same(toRole2, referentialConstraint.ToRole);
}
private static AssociationType CreateCSpaceAssociationType(int index)
{
var sourceProperty = new EdmProperty("SourceProperty");
var targetProperty = new EdmProperty("TargetProperty");
var sourceEntityType = EntityType.Create(
"SourceEntityType" + index,
"Namespace",
DataSpace.CSpace,
new [] { "SourceProperty" },
new[] { sourceProperty },
Enumerable.Empty <MetadataProperty>());
var targetEntityType = EntityType.Create(
"TargetEntityType" + index,
"Namespace",
DataSpace.CSpace,
new[] { "TargetProperty" },
new[] { targetProperty },
Enumerable.Empty <MetadataProperty>());
var sourceEnd = new AssociationEndMember("SourceEnd" + index, sourceEntityType);
var targetEnd = new AssociationEndMember("TargetEnd" + index, targetEntityType);
var constraint =
new ReferentialConstraint(
sourceEnd,
targetEnd,
new[] { sourceProperty },
new[] { targetProperty });
var associationType =
AssociationType.Create(
"AssociationType" + index,
"Namespace",
true,
DataSpace.CSpace,
sourceEnd,
targetEnd,
constraint,
Enumerable.Empty <MetadataProperty>());
return(associationType);
}
public void Can_set_and_get_dependent_end()
{
var dependentEnd1 = new AssociationEndMember("D", new EntityType());
var referentialConstraint
= new ReferentialConstraint(
new AssociationEndMember("P", new EntityType()),
dependentEnd1,
new[] { EdmProperty.Primitive("P", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32)) },
new[] { EdmProperty.Primitive("D", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32)) });
Assert.Same(dependentEnd1, referentialConstraint.DependentEnd);
var dependentEnd2 = new AssociationEndMember("D2", new EntityType());
referentialConstraint.DependentEnd = dependentEnd2;
Assert.Same(dependentEnd2, referentialConstraint.DependentEnd);
}
public void Can_set_and_get_to_role()
{
var toRole = new AssociationEndMember("D", new EntityType("E", "N", DataSpace.CSpace));
var referentialConstraint
= new ReferentialConstraint(
new AssociationEndMember("P", new EntityType("E", "N", DataSpace.CSpace)),
toRole,
new[] { EdmProperty.Primitive("P", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32)) },
new[] { EdmProperty.Primitive("D", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32)) });
Assert.Same(toRole, referentialConstraint.ToRole);
var toRole2 = new AssociationEndMember("D2", new EntityType("E", "N", DataSpace.CSpace));
referentialConstraint.ToRole = toRole2;
Assert.Same(toRole2, referentialConstraint.ToRole);
}
public IEnumerable <EdmProperty> GetDependentProperties()
{
AssociationType relationshipType = (AssociationType)this.RelationshipType;
if (relationshipType.ReferentialConstraints.Count > 0)
{
ReferentialConstraint referentialConstraint = relationshipType.ReferentialConstraints[0];
if (referentialConstraint.ToRole.EdmEquals((MetadataItem)this.FromEndMember))
{
ReadOnlyMetadataCollection <EdmMember> keyMembers = referentialConstraint.FromRole.GetEntityType().KeyMembers;
List <EdmProperty> edmPropertyList = new List <EdmProperty>(keyMembers.Count);
for (int index = 0; index < keyMembers.Count; ++index)
{
edmPropertyList.Add(referentialConstraint.ToProperties[referentialConstraint.FromProperties.IndexOf((EdmProperty)keyMembers[index])]);
}
return((IEnumerable <EdmProperty>) new ReadOnlyCollection <EdmProperty>((IList <EdmProperty>)edmPropertyList));
}
}
return(Enumerable.Empty <EdmProperty>());
}
public void BuildConstraintExceptionMessage_returns_message_for_single_property_constraint()
{
var principalType = new EntityType("Principal", "N", DataSpace.CSpace);
var principalProperty = EdmProperty.CreatePrimitive("P1", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32));
principalType.AddMember(principalProperty);
var dependentType = new EntityType("Dependent", "N", DataSpace.CSpace);
var dependentProperty = EdmProperty.CreatePrimitive("D1", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32));
dependentType.AddMember(dependentProperty);
var referentialConstraint
= new ReferentialConstraint(
new AssociationEndMember("P", principalType),
new AssociationEndMember("D", dependentType),
new[] { principalProperty },
new[] { dependentProperty });
Assert.Equal(
Strings.RelationshipManager_InconsistentReferentialConstraintProperties("Principal.P1", "Dependent.D1"),
referentialConstraint.BuildConstraintExceptionMessage());
}
/// <summary>
/// Creates a read-only AssociationType instance from the specified parameters.
/// </summary>
/// <param name="name">The name of the association type.</param>
/// <param name="namespaceName">The namespace of the association type.</param>
/// <param name="foreignKey">Flag that indicates a foreign key (FK) relationship.</param>
/// <param name="dataSpace">The data space for the association type.</param>
/// <param name="sourceEnd">The source association end member.</param>
/// <param name="targetEnd">The target association end member.</param>
/// <param name="constraint">A referential constraint.</param>
/// <param name="metadataProperties">Metadata properties to be associated with the instance.</param>
/// <returns>The newly created AssociationType instance.</returns>
/// <exception cref="System.ArgumentException">The specified name is null or empty.</exception>
/// <exception cref="System.ArgumentException">The specified namespace is null or empty.</exception>
public static AssociationType Create(
string name,
string namespaceName,
bool foreignKey,
DataSpace dataSpace,
AssociationEndMember sourceEnd,
AssociationEndMember targetEnd,
ReferentialConstraint constraint,
IEnumerable <MetadataProperty> metadataProperties)
{
Check.NotEmpty(name, "name");
Check.NotEmpty(namespaceName, "namespaceName");
var instance = new AssociationType(name, namespaceName, foreignKey, dataSpace);
if (sourceEnd != null)
{
instance.SourceEnd = sourceEnd;
}
if (targetEnd != null)
{
instance.TargetEnd = targetEnd;
}
if (constraint != null)
{
instance.AddReferentialConstraint(constraint);
}
if (metadataProperties != null)
{
instance.AddMetadataProperties(metadataProperties);
}
instance.SetReadOnly();
return(instance);
}
public void Apply_should_not_discover_when_existing_constraint()
{
var associationType = new AssociationType();
associationType.SourceEnd = new AssociationEndMember("S", new EntityType());
associationType.TargetEnd = new AssociationEndMember("T", new EntityType());
var property = EdmProperty.Primitive("Fk", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.String));
var associationConstraint
= new ReferentialConstraint(
associationType.SourceEnd,
associationType.TargetEnd,
new[] { property },
new[] { property });
associationType.Constraint = associationConstraint;
((IEdmConvention<AssociationType>)new TypeNameForeignKeyDiscoveryConvention())
.Apply(associationType, new EdmModel().Initialize());
Assert.Same(associationConstraint, associationType.Constraint);
}
public void Apply_should_not_discover_when_existing_constraint()
{
var associationType = new AssociationType("A", XmlConstants.ModelNamespace_3, false, DataSpace.CSpace);
associationType.SourceEnd = new AssociationEndMember("S", new EntityType("E", "N", DataSpace.CSpace));
associationType.TargetEnd = new AssociationEndMember("T", new EntityType("E", "N", DataSpace.CSpace));
var property = EdmProperty.CreatePrimitive("Fk", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.String));
var associationConstraint
= new ReferentialConstraint(
associationType.SourceEnd,
associationType.TargetEnd,
new[] { property },
new[] { property });
associationType.Constraint = associationConstraint;
(new TypeNameForeignKeyDiscoveryConvention())
.Apply(associationType, new DbModel(new EdmModel(DataSpace.CSpace), null));
Assert.Same(associationConstraint, associationType.Constraint);
}
public void BuildConstraintExceptionMessage_returns_message_for_single_property_constraint()
{
var principalType = new EntityType("Principal", "N", DataSpace.CSpace);
var principalProperty = EdmProperty.CreatePrimitive("P1", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32));
principalType.AddMember(principalProperty);
var dependentType = new EntityType("Dependent", "N", DataSpace.CSpace);
var dependentProperty = EdmProperty.CreatePrimitive("D1", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.Int32));
dependentType.AddMember(dependentProperty);
var referentialConstraint
= new ReferentialConstraint(
new AssociationEndMember("P", principalType),
new AssociationEndMember("D", dependentType),
new[] { principalProperty },
new[] { dependentProperty });
Assert.Equal(
Strings.RelationshipManager_InconsistentReferentialConstraintProperties("Principal.P1", "Dependent.D1"),
referentialConstraint.BuildConstraintExceptionMessage());
}
public void Create_sets_properties_and_seals_the_instance()
{
var source = new EntityType("Source", "Namespace", DataSpace.CSpace);
var target = new EntityType("Target", "Namespace", DataSpace.CSpace);
var sourceEnd = new AssociationEndMember("SourceEnd", source);
var targetEnd = new AssociationEndMember("TargetEnd", target);
var constraint =
new ReferentialConstraint(
sourceEnd,
targetEnd,
new[] { new EdmProperty("SourceProperty") },
new[] { new EdmProperty("TargetProperty") });
var metadataProperty =
new MetadataProperty(
"MetadataProperty",
TypeUsage.CreateDefaultTypeUsage(PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.String)),
"value");
var associationType =
AssociationType.Create(
"AssociationType",
"Namespace",
true,
DataSpace.CSpace,
sourceEnd,
targetEnd,
constraint,
new[] { metadataProperty });
Assert.Equal("Namespace.AssociationType", associationType.FullName);
Assert.Equal(true, associationType.IsForeignKey);
Assert.Equal(DataSpace.CSpace, associationType.DataSpace);
Assert.Same(sourceEnd, associationType.SourceEnd);
Assert.Same(targetEnd, associationType.TargetEnd);
Assert.Same(constraint, associationType.Constraint);
Assert.Same(metadataProperty, associationType.MetadataProperties.SingleOrDefault(p => p.Name == "MetadataProperty"));
Assert.True(associationType.IsReadOnly);
}
private static DbRelatedEntityRef RelatedEntityRefFromAssociationSetEnd(
EntityType constructedEntityType, DbNewInstanceExpression entityConstructor, AssociationSetEnd principalSetEnd,
ReferentialConstraint fkConstraint)
{
var principalEntityType = (EntityType)TypeHelpers.GetEdmType<RefType>(fkConstraint.FromRole.TypeUsage).ElementType;
IList<DbExpression> principalKeyValues = null;
// Create Entity Property/DbExpression value pairs from the entity constructor DbExpression,
// then join these with the principal/dependent property pairs from the FK constraint
// to produce principal property name/DbExpression value pairs from which to create the principal ref.
//
// Ideally the code would be as below, but anonymous types break asmmeta:
//var keyPropAndValue =
// from pv in constructedEntityType.Properties.Select((p, idx) => new { DependentProperty = p, Value = entityConstructor.Arguments[idx] })
// join ft in fkConstraint.FromProperties.Select((fp, idx) => new { PrincipalProperty = fp, DependentProperty = fkConstraint.ToProperties[idx] })
// on pv.DependentProperty equals ft.DependentProperty
// select new { PrincipalProperty = ft.PrincipalProperty.Name, Value = pv.Value };
//
var keyPropAndValue =
from pv in constructedEntityType.Properties.Select((p, idx) => Tuple.Create(p, entityConstructor.Arguments[idx]))
// new { DependentProperty = p, Value = entityConstructor.Arguments[idx] })
join ft in fkConstraint.FromProperties.Select((fp, idx) => Tuple.Create(fp, fkConstraint.ToProperties[idx]))
//new { PrincipalProperty = fp, DependentProperty = fkConstraint.ToProperties[idx] })
on pv.Item1 equals ft.Item2
//pv.DependentProperty equals ft.DependentProperty
select Tuple.Create(ft.Item1.Name, pv.Item2); // new { PrincipalProperty = ft.PrincipalProperty.Name, Value = pv.Value };
// If there is only a single property in the principal's key, then there is no ordering concern.
// Otherwise, create a dictionary of principal key property name to DbExpression value so that
// when used as the arguments to the ref expression, the dependent property values - used here
// as principal key property values - are in the correct order, which is the same order as the
// key members themselves.
//
if (fkConstraint.FromProperties.Count == 1)
{
var singleKeyNameAndValue = keyPropAndValue.Single();
Debug.Assert(singleKeyNameAndValue.Item1 == fkConstraint.FromProperties[0].Name, "Unexpected single key property name");
principalKeyValues = new[] { singleKeyNameAndValue.Item2 };
}
else
{
var keyValueMap = keyPropAndValue.ToDictionary(pav => pav.Item1, pav => pav.Item2, StringComparer.Ordinal);
principalKeyValues = principalEntityType.KeyMemberNames.Select(memberName => keyValueMap[memberName]).ToList();
}
// Create the ref to the principal entity based on the (now correctly ordered) key value expressions.
//
var principalRef = principalSetEnd.EntitySet.CreateRef(principalEntityType, principalKeyValues);
var result = DbExpressionBuilder.CreateRelatedEntityRef(fkConstraint.ToRole, fkConstraint.FromRole, principalRef);
return result;
}
private static bool IsFKPartiallyContainedInPK(
ReferentialConstraint constraint,
string associationTypeName,
IList<EdmSchemaError> errors)
{
var toType = (EntityType)constraint.ToProperties[0].DeclaringType;
var toPropertiesAreFullyContainedInPK = true;
var toPropertiesContainedAtLeastOnePK = false;
foreach (var edmProperty in constraint.ToProperties)
{
// Check if there is at least one to property is not primary key.
toPropertiesAreFullyContainedInPK &= toType.KeyMembers.Contains(edmProperty);
// Check if there is one to property is primary key.
toPropertiesContainedAtLeastOnePK |= toType.KeyMembers.Contains(edmProperty);
}
if (!toPropertiesAreFullyContainedInPK && toPropertiesContainedAtLeastOnePK)
{
var foreignKeys = MembersToCommaSeparatedString(constraint.ToProperties);
var primaryKeys = MembersToCommaSeparatedString(toType.KeyMembers);
errors.Add(
new EdmSchemaError(
string.Format(
CultureInfo.InvariantCulture,
Resources_VersioningFacade.UnsupportedForeignKeyPattern,
associationTypeName,
foreignKeys,
primaryKeys,
toType.Name),
(int)ModelBuilderErrorCode.UnsupportedForeinKeyPattern,
EdmSchemaErrorSeverity.Warning));
return true;
}
return false;
}
private static bool AreAllEntityColumnsMappedAsToColumns(
EntitySet storeEntitySet,
ReferentialConstraint constraint0,
ReferentialConstraint constraint1)
{
var names = new HashSet<string>(constraint0.ToProperties.Select(p => p.Name));
names.UnionWith(constraint1.ToProperties.Select(p => p.Name));
return names.Count == storeEntitySet.ElementType.Properties.Count;
}
protected override void VisitEdmAssociationConstraint(ReferentialConstraint item)
{
_schemaWriter.WriteReferentialConstraintElementHeader();
_schemaWriter.WriteReferentialConstraintRoleElement(
XmlConstants.PrincipalRole,
item.PrincipalEnd(_currentAssociationType),
item.PrincipalEnd(_currentAssociationType).GetEntityType().GetValidKey());
_schemaWriter.WriteReferentialConstraintRoleElement(
XmlConstants.DependentRole, item.DependentEnd, item.ToProperties);
VisitMetadataItem(item);
_schemaWriter.WriteEndElement();
}
// Check if related entities contain proper property values
internal override bool CheckReferentialConstraintPrincipalProperty(EntityEntry ownerEntry, ReferentialConstraint constraint)
{
EntityKey principalKey;
if (!IsEmpty())
{
var wrappedRelatedEntity = ReferenceValue;
// For Added entities, it doesn't matter what the key value is since it can't be trusted anyway.
if (wrappedRelatedEntity.ObjectStateEntry != null
&& wrappedRelatedEntity.ObjectStateEntry.State == EntityState.Added)
{
return true;
}
principalKey = ExtractPrincipalKey(wrappedRelatedEntity);
}
else if ((ToEndMember.RelationshipMultiplicity == RelationshipMultiplicity.ZeroOrOne ||
ToEndMember.RelationshipMultiplicity == RelationshipMultiplicity.One)
&&
DetachedEntityKey != null)
{
// Generally for foreign keys we want to use the EntityKey to do RI constraint validation
// However, if we are doing an Add/Attach, we should use the DetachedEntityKey because this is the value
// set by the user while the entity was detached, and should be used until the entity is fully added/attached
if (IsForeignKey &&
!(ObjectContext.ObjectStateManager.TransactionManager.IsAddTracking ||
ObjectContext.ObjectStateManager.TransactionManager.IsAttachTracking))
{
principalKey = EntityKey;
}
else
{
principalKey = DetachedEntityKey;
}
}
else
{
// We only need to check for RI constraints if the related end contains a real entity or is a reference with a detached entitykey
return true;
}
return VerifyRIConstraintsWithRelatedEntry(constraint, ownerEntry.GetCurrentEntityValue, principalKey);
}
internal override bool CheckReferentialConstraintDependentProperty(EntityEntry ownerEntry, ReferentialConstraint constraint)
{
// if the related end contains a real entity or is a reference with a detached entitykey, we need to check for RI constraints
if (!IsEmpty())
{
return base.CheckReferentialConstraintDependentProperty(ownerEntry, constraint);
}
else if ((ToEndMember.RelationshipMultiplicity == RelationshipMultiplicity.ZeroOrOne ||
ToEndMember.RelationshipMultiplicity == RelationshipMultiplicity.One)
&&
DetachedEntityKey != null)
{
// related end is empty, so we must have a reference with a detached key
var detachedKey = DetachedEntityKey;
#if DEBUG
// If the constraint is not PK<->PK then we can't validate it here.
// This debug code checks that we don't try to validate it.
var keyNames = new List<string>(
from v in detachedKey.EntityKeyValues
select v.Key);
foreach (var prop in constraint.ToProperties)
{
Debug.Assert(
keyNames.Contains(prop.Name),
"Attempt to validate constraint where some FK values are not in the dependent PK");
}
#endif
// don't need to validate the principal/detached key here because that has already been done during AttachContext
if (!VerifyRIConstraintsWithRelatedEntry(constraint, detachedKey.FindValueByName, ownerEntry.EntityKey))
{
return false;
}
}
return true;
}
private static AssociationType ConvertToAssociationType(
Relationship element,
DbProviderManifest providerManifest,
Converter.ConversionCache convertedItemCache,
Dictionary <SchemaElement, GlobalItem> newGlobalItems)
{
AssociationType associationType = new AssociationType(element.Name, element.Namespace, element.IsForeignKey, Converter.GetDataSpace(providerManifest));
newGlobalItems.Add((SchemaElement)element, (GlobalItem)associationType);
foreach (RelationshipEnd end in (IEnumerable <IRelationshipEnd>)element.Ends)
{
EntityType endMemberType = (EntityType)Converter.LoadSchemaElement((System.Data.Entity.Core.SchemaObjectModel.SchemaType)end.Type, providerManifest, convertedItemCache, newGlobalItems);
AssociationEndMember associationEndMember = Converter.InitializeAssociationEndMember(associationType, (IRelationshipEnd)end, endMemberType);
Converter.AddOtherContent((SchemaElement)end, (MetadataItem)associationEndMember);
foreach (OnOperation operation in (IEnumerable <OnOperation>)end.Operations)
{
if (operation.Operation == Operation.Delete)
{
OperationAction operationAction = OperationAction.None;
switch (operation.Action)
{
case System.Data.Entity.Core.SchemaObjectModel.Action.None:
operationAction = OperationAction.None;
break;
case System.Data.Entity.Core.SchemaObjectModel.Action.Cascade:
operationAction = OperationAction.Cascade;
break;
}
associationEndMember.DeleteBehavior = operationAction;
}
}
if (end.Documentation != null)
{
associationEndMember.Documentation = Converter.ConvertToDocumentation(end.Documentation);
}
}
for (int index = 0; index < element.Constraints.Count; ++index)
{
System.Data.Entity.Core.SchemaObjectModel.ReferentialConstraint constraint = element.Constraints[index];
AssociationEndMember member1 = (AssociationEndMember)associationType.Members[constraint.PrincipalRole.Name];
AssociationEndMember member2 = (AssociationEndMember)associationType.Members[constraint.DependentRole.Name];
EntityTypeBase elementType1 = ((RefType)member1.TypeUsage.EdmType).ElementType;
EntityTypeBase elementType2 = ((RefType)member2.TypeUsage.EdmType).ElementType;
ReferentialConstraint referentialConstraint = new ReferentialConstraint((RelationshipEndMember)member1, (RelationshipEndMember)member2, (IEnumerable <EdmProperty>)Converter.GetProperties(elementType1, constraint.PrincipalRole.RoleProperties), (IEnumerable <EdmProperty>)Converter.GetProperties(elementType2, constraint.DependentRole.RoleProperties));
if (constraint.Documentation != null)
{
referentialConstraint.Documentation = Converter.ConvertToDocumentation(constraint.Documentation);
}
if (constraint.PrincipalRole.Documentation != null)
{
referentialConstraint.FromRole.Documentation = Converter.ConvertToDocumentation(constraint.PrincipalRole.Documentation);
}
if (constraint.DependentRole.Documentation != null)
{
referentialConstraint.ToRole.Documentation = Converter.ConvertToDocumentation(constraint.DependentRole.Documentation);
}
associationType.AddReferentialConstraint(referentialConstraint);
Converter.AddOtherContent((SchemaElement)element.Constraints[index], (MetadataItem)referentialConstraint);
}
if (element.Documentation != null)
{
associationType.Documentation = Converter.ConvertToDocumentation(element.Documentation);
}
Converter.AddOtherContent((SchemaElement)element, (MetadataItem)associationType);
return(associationType);
}
private static bool IsAtLeastOneColumnFkInBothAssociations(
ReferentialConstraint constraint0,
ReferentialConstraint constraint1)
{
return constraint1.ToProperties.Any(p => constraint0.ToProperties.Contains(p));
}
public void Create_throws_argument_exception_when_called_with_invalid_arguments()
{
var source = new EntityType("Source", "Namespace", DataSpace.CSpace);
var target = new EntityType("Target", "Namespace", DataSpace.CSpace);
var sourceEnd = new AssociationEndMember("SourceEnd", source);
var targetEnd = new AssociationEndMember("TargetEnd", target);
var constraint =
new ReferentialConstraint(
sourceEnd,
targetEnd,
new[] { new EdmProperty("SourceProperty") },
new[] { new EdmProperty("TargetProperty") });
var metadataProperty =
new MetadataProperty(
"MetadataProperty",
TypeUsage.CreateDefaultTypeUsage(PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.String)),
"value");
Assert.Throws <ArgumentException>(
() => AssociationType.Create(
null,
"Namespace",
true,
DataSpace.CSpace,
sourceEnd,
targetEnd,
constraint,
new[] { metadataProperty }));
Assert.Throws <ArgumentException>(
() => AssociationType.Create(
String.Empty,
"Namespace",
true,
DataSpace.CSpace,
sourceEnd,
targetEnd,
constraint,
new[] { metadataProperty }));
Assert.Throws <ArgumentException>(
() => AssociationType.Create(
"AssociationType",
null,
true,
DataSpace.CSpace,
sourceEnd,
targetEnd,
constraint,
new[] { metadataProperty }));
Assert.Throws <ArgumentException>(
() => AssociationType.Create(
"AssociationType",
String.Empty,
true,
DataSpace.CSpace,
sourceEnd,
targetEnd,
constraint,
new[] { metadataProperty }));
}
private static bool IsAtLeastOneColumnOfBothDependentRelationshipColumnSetsNonNullable(
ReferentialConstraint constraint0,
ReferentialConstraint constraint1)
{
return constraint0.ToProperties.Any(p => !p.Nullable)
&& constraint1.ToProperties.Any(p => !p.Nullable);
}
private static bool ValidateReferentialConstraint(
ReferentialConstraint constraint,
bool generateForeignKeyProperties,
string associationTypeName,
IEnumerable<AssociationType> associationTypes,
IList<EdmSchemaError> errors)
{
if (constraint == null)
{
return false;
}
// We can skip validation checks if the FKs are directly surfaced (since we can produce valid mappings in these cases).
if (generateForeignKeyProperties)
{
return true;
}
if (IsFKPartiallyContainedInPK(constraint, associationTypeName, errors))
{
return false;
}
// Check if any FK (which could also be a PK) is shared among multiple Associations (ie shared via foreign key constraint).
// To do this we check if the AssociationType being generated has any dependent property which is also a dependent in one
// of the association typed already added. If so, we keep one association and throw the rest away.
foreach (var toPropertyOfAddedAssociation in associationTypes.SelectMany(
t => t.ReferentialConstraints.SelectMany(refconst => refconst.ToProperties)))
{
foreach (var toProperty in constraint.ToProperties)
{
if (toProperty.DeclaringType.Equals(toPropertyOfAddedAssociation.DeclaringType)
&& toProperty.Equals(toPropertyOfAddedAssociation))
{
errors.Add(
new EdmSchemaError(
string.Format(
CultureInfo.InvariantCulture,
Resources_VersioningFacade.SharedForeignKey,
associationTypeName,
toProperty,
toProperty.DeclaringType),
(int)ModelBuilderErrorCode.SharedForeignKey,
EdmSchemaErrorSeverity.Warning));
return false;
}
}
}
return true;
}
protected override void Visit(ReferentialConstraint referentialConstraint)
{
int index;
if (!AddObjectToSeenListAndHashBuilder(referentialConstraint, out index))
{
return;
}
AddObjectStartDumpToHashBuilder(referentialConstraint, index);
#region Inner data visit
AddObjectContentToHashBuilder(referentialConstraint.Identity);
base.Visit(referentialConstraint);
#endregion
AddObjectEndDumpToHashBuilder();
}
internal override void Configure(
AssociationType associationType,
AssociationEndMember dependentEnd,
EntityTypeConfiguration entityTypeConfiguration)
{
DebugCheck.NotNull(associationType);
DebugCheck.NotNull(dependentEnd);
DebugCheck.NotNull(entityTypeConfiguration);
if (!_dependentProperties.Any())
{
return;
}
var dependentPropertInfos = _dependentProperties.AsEnumerable();
if (!IsFullySpecified)
{
var foreignKeys
= from p in _dependentProperties
select new
{
PropertyInfo = p,
entityTypeConfiguration.Property(new PropertyPath(p)).ColumnOrder
};
if ((_dependentProperties.Count > 1)
&& foreignKeys.Any(p => !p.ColumnOrder.HasValue))
{
var dependentKeys = dependentEnd.GetEntityType().KeyProperties;
if ((dependentKeys.Count == _dependentProperties.Count)
&& foreignKeys.All(fk => dependentKeys.Any(p => p.GetClrPropertyInfo().IsSameAs(fk.PropertyInfo))))
{
// The FK and PK sets are equal, we know the order
dependentPropertInfos = dependentKeys.Select(p => p.GetClrPropertyInfo());
}
else
{
throw Error.ForeignKeyAttributeConvention_OrderRequired(entityTypeConfiguration.ClrType);
}
}
else
{
dependentPropertInfos = foreignKeys.OrderBy(p => p.ColumnOrder).Select(p => p.PropertyInfo);
}
}
var dependentProperties = new List<EdmProperty>();
foreach (var dependentProperty in dependentPropertInfos)
{
var property
= dependentEnd.GetEntityType()
.GetDeclaredPrimitiveProperty(dependentProperty);
if (property == null)
{
throw Error.ForeignKeyPropertyNotFound(
dependentProperty.Name, dependentEnd.GetEntityType().Name);
}
dependentProperties.Add(property);
}
var principalEnd = associationType.GetOtherEnd(dependentEnd);
var associationConstraint
= new ReferentialConstraint(
principalEnd,
dependentEnd,
principalEnd.GetEntityType().KeyProperties,
dependentProperties);
if (principalEnd.IsRequired())
{
associationConstraint.ToProperties.Each(p => p.Nullable = false);
}
associationType.Constraint = associationConstraint;
}
/// <summary>
/// Add the given referential constraint to the collection of referential constraints
/// </summary>
internal void AddReferentialConstraint(ReferentialConstraint referentialConstraint)
{
ReferentialConstraints.Source.Add(referentialConstraint);
}
// <summary>
// Add the given referential constraint to the collection of referential constraints
// </summary>
internal void AddReferentialConstraint(ReferentialConstraint referentialConstraint)
{
ReferentialConstraints.Source.Add(referentialConstraint);
}
protected virtual void Visit(ReferentialConstraint referentialConstraint)
{
foreach (var property in referentialConstraint.FromProperties)
{
Visit(property);
}
Visit(referentialConstraint.FromRole);
foreach (var property in referentialConstraint.ToProperties)
{
Visit(property);
}
Visit(referentialConstraint.ToRole);
}
/// <summary>
/// Creates an EntityKey for a principal entity based on the foreign key values contained
/// in this entity. This implies that this entity is at the dependent end of the relationship.
/// </summary>
/// <param name="dependentEntry"> The EntityEntry for the dependent that contains the FK </param>
/// <param name="constraint"> The constraint that describes this FK relationship </param>
/// <param name="principalEntitySet"> The entity set at the principal end of the the relationship </param>
/// <param name="useOriginalValues"> If true then the key will be constructed from the original FK values </param>
/// <returns> The key, or null if any value in the key is null </returns>
public static EntityKey CreateKeyFromForeignKeyValues(
EntityEntry dependentEntry, ReferentialConstraint constraint, EntitySet principalEntitySet, bool useOriginalValues)
{
// Build the key values. If any part of the key is null, then the entire key
// is considered null.
var dependentProps = constraint.ToProperties;
var numValues = dependentProps.Count;
if (numValues == 1)
{
var keyValue = useOriginalValues
? dependentEntry.GetOriginalEntityValue(dependentProps.First().Name)
: dependentEntry.GetCurrentEntityValue(dependentProps.First().Name);
return keyValue == DBNull.Value ? null : new EntityKey(principalEntitySet, keyValue);
}
// Note that the properties in the principal entity set may be in a different order than
// they appear in the constraint. Therefore, we create name value mappings to ensure that
// the correct values are associated with the correct properties.
// Unfortunately, there is not way to call the public EntityKey constructor that takes pairs
// because the internal "object" constructor hides it. Even this doesn't work:
// new EntityKey(principalEntitySet, (IEnumerable<KeyValuePair<string, object>>)keyValues)
var keyNames = principalEntitySet.ElementType.KeyMemberNames;
Debug.Assert(keyNames.Length == numValues, "Number of entity set key names does not match constraint names");
var values = new object[numValues];
var principalProps = constraint.FromProperties;
for (var i = 0; i < numValues; i++)
{
var value = useOriginalValues
? dependentEntry.GetOriginalEntityValue(dependentProps[i].Name)
: dependentEntry.GetCurrentEntityValue(dependentProps[i].Name);
if (value == DBNull.Value)
{
return null;
}
var keyIndex = Array.IndexOf(keyNames, principalProps[i].Name);
Debug.Assert(keyIndex >= 0 && keyIndex < numValues, "Could not find constraint prop name in entity set key names");
values[keyIndex] = value;
}
return new EntityKey(principalEntitySet, values);
}
private static bool IsEntityDependentSideOfBothAssociations(
EntitySet storeEntitySet,
ReferentialConstraint constraint0,
ReferentialConstraint constraint1)
{
return ((RefType)constraint0.ToRole.TypeUsage.EdmType).ElementType == storeEntitySet.ElementType
&& ((RefType)constraint1.ToRole.TypeUsage.EdmType).ElementType == storeEntitySet.ElementType;
}
/// <summary>
/// If this is a property that participates in the principal end of a referential constraint, this method will return
/// the corresponding property on the dependent end.
/// </summary>
/// <example>
/// <ReferentialConstraint>
/// <Principal Role="DiscontinuedProduct">
/// <PropertyRef Name="ProductId" />
/// <PropertyRef Name="ProductName" />
/// </Principal>
/// <Dependent Role="DiscontinuedItem">
/// <PropertyRef Name="ItemId" />
/// <PropertyRef Name="ItemName" />
/// </Dependent>
/// </ReferentialConstraint>
/// In this example, if 'ProductName' were passed into this method, 'ItemName' would be returned.
/// </example>
/// <param name="property">The property on the principal end of the referential constraint</param>
/// <param name="refConstraint">The referential constraint.</param>
/// <returns>The property on the dependent end of the referentail constraint corresponding to the property on the principal end</returns>
/// <exception cref="ArgumentNullException">if the ref constraint is null</exception>
/// <exception cref="InvalidOperationException">if the property cannot be found among the properties on the principal end of the referential constraint</exception>
public static EdmProperty GetDependentProperty(this EdmProperty property, ReferentialConstraint refConstraint)
{
if (refConstraint == null)
{
throw new ArgumentNullException("refConstraint");
}
var indexInFromProperties = refConstraint.FromProperties.IndexOf(property);
if (indexInFromProperties == -1)
{
throw new InvalidOperationException(
String.Format(
CultureInfo.CurrentCulture, Resources.ErrorNoPropertyInRefConstraint, property.Name, refConstraint.FromRole.Name,
refConstraint.ToRole.Name));
}
return refConstraint.ToProperties.ElementAt(indexInFromProperties);
}
/// <summary>
/// Creates a read-only AssociationType instance from the specified parameters.
/// </summary>
/// <param name="name">The name of the association type.</param>
/// <param name="namespaceName">The namespace of the association type.</param>
/// <param name="foreignKey">Flag that indicates a foreign key (FK) relationship.</param>
/// <param name="dataSpace">The data space for the association type.</param>
/// <param name="sourceEnd">The source association end member.</param>
/// <param name="targetEnd">The target association end member.</param>
/// <param name="constraint">A referential constraint.</param>
/// <param name="metadataProperties">Metadata properties to be associated with the instance.</param>
/// <returns>The newly created AssociationType instance.</returns>
/// <exception cref="System.ArgumentException">The specified name is null or empty.</exception>
/// <exception cref="System.ArgumentException">The specified namespace is null or empty.</exception>
public static AssociationType Create(
string name,
string namespaceName,
bool foreignKey,
DataSpace dataSpace,
AssociationEndMember sourceEnd,
AssociationEndMember targetEnd,
ReferentialConstraint constraint,
IEnumerable<MetadataProperty> metadataProperties)
{
Check.NotEmpty(name, "name");
Check.NotEmpty(namespaceName, "namespaceName");
var instance = new AssociationType(name, namespaceName, foreignKey, dataSpace);
if (sourceEnd != null)
{
instance.SourceEnd = sourceEnd;
}
if (targetEnd != null)
{
instance.TargetEnd = targetEnd;
}
if (constraint != null)
{
instance.AddReferentialConstraint(constraint);
}
if (metadataProperties != null)
{
instance.AddMetadataProperties(metadataProperties.ToList());
}
instance.SetReadOnly();
return instance;
}
public void Create_sets_properties_and_seals_the_instance()
{
var source = new EntityType("Source", "Namespace", DataSpace.CSpace);
var target = new EntityType("Target", "Namespace", DataSpace.CSpace);
var sourceEnd = new AssociationEndMember("SourceEnd", source);
var targetEnd = new AssociationEndMember("TargetEnd", target);
var constraint =
new ReferentialConstraint(
sourceEnd,
targetEnd,
new[] { new EdmProperty("SourceProperty") },
new[] { new EdmProperty("TargetProperty") });
var associationType =
AssociationType.Create(
"AssociationType",
"Namespace",
true,
DataSpace.CSpace,
sourceEnd,
targetEnd,
constraint,
Enumerable.Empty<MetadataProperty>());
var sourceSet = new EntitySet("SourceSet", "Schema", "Table", "Query", source);
var targetSet = new EntitySet("TargetSet", "Schema", "Table", "Query", target);
var metadataProperty =
new MetadataProperty(
"MetadataProperty",
TypeUsage.CreateDefaultTypeUsage(PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.String)),
"value");
var associationSet =
AssociationSet.Create(
"AssociationSet",
associationType,
sourceSet,
targetSet,
new[] { metadataProperty });
Assert.Equal("AssociationSet", associationSet.Name);
Assert.Same(associationType, associationSet.ElementType);
Assert.Same(sourceSet, associationSet.SourceSet);
Assert.Same(targetSet, associationSet.TargetSet);
Assert.Same(source, associationSet.SourceEnd.GetEntityType());
Assert.Same(target, associationSet.TargetEnd.GetEntityType());
Assert.Same(metadataProperty, associationSet.MetadataProperties.SingleOrDefault(p => p.Name == "MetadataProperty"));
Assert.True(associationSet.IsReadOnly);
}