private static AssociationSet ConvertToAssociationSet(
EntityContainerRelationshipSet relationshipSet,
DbProviderManifest providerManifest,
Converter.ConversionCache convertedItemCache,
EntityContainer container,
Dictionary <SchemaElement, GlobalItem> newGlobalItems)
{
AssociationType associationType = (AssociationType)Converter.LoadSchemaElement((System.Data.Entity.Core.SchemaObjectModel.SchemaType)relationshipSet.Relationship, providerManifest, convertedItemCache, newGlobalItems);
AssociationSet parentSet = new AssociationSet(relationshipSet.Name, associationType);
foreach (EntityContainerRelationshipSetEnd end in relationshipSet.Ends)
{
EntityType entityType = (EntityType)Converter.LoadSchemaElement((System.Data.Entity.Core.SchemaObjectModel.SchemaType)end.EntitySet.EntityType, providerManifest, convertedItemCache, newGlobalItems);
AssociationEndMember member = (AssociationEndMember)associationType.Members[end.Name];
AssociationSetEnd associationSetEnd = new AssociationSetEnd(Converter.GetEntitySet(end.EntitySet, container), parentSet, member);
Converter.AddOtherContent((SchemaElement)end, (MetadataItem)associationSetEnd);
parentSet.AddAssociationSetEnd(associationSetEnd);
if (end.Documentation != null)
{
associationSetEnd.Documentation = Converter.ConvertToDocumentation(end.Documentation);
}
}
if (relationshipSet.Documentation != null)
{
parentSet.Documentation = Converter.ConvertToDocumentation(relationshipSet.Documentation);
}
Converter.AddOtherContent((SchemaElement)relationshipSet, (MetadataItem)parentSet);
return(parentSet);
}
public AssociationSetEndDetails(
AssociationSetEnd associationSetEnd, RelationshipMultiplicity multiplicity,
OperationAction deleteBehavior)
{
AssociationSetEnd = associationSetEnd;
Multiplicity = multiplicity;
DeleteBehavior = deleteBehavior;
}
private void LogRelationEntityEnd(EntityKey mainKey, EntityKey relatedKey, System.Data.Entity.Core.Metadata.Edm.AssociationSetEnd relatedAssociationEnd, EntityState relationStatus, AuditingWidget widget)
{
var ctx = (widget.TrackedContext as IObjectContextAdapter).ObjectContext;
var relatedEntry = ctx.ObjectStateManager.GetObjectStateEntry(mainKey);
if (relatedEntry.State != EntityState.Detached && relatedEntry.State != EntityState.Unchanged)
{
var relatedAuditLog = widget.TrackedEntities[relatedEntry];
LogRelatedEntryDetails(relatedAssociationEnd.EntitySet.Name, relatedKey, relatedAuditLog, widget, relationStatus == EntityState.Added);
}
}
/// <summary>
/// Initializes a new ModificationFunctionMemberPath instance.
/// </summary>
/// <param name="members">Gets the members in the path from the leaf (the member being bound)
/// to the root of the structure.</param>
/// <param name="associationSet">Gets the association set to which we are navigating
/// via this member. If the value is null, this is not a navigation member path.</param>
public ModificationFunctionMemberPath(IEnumerable<EdmMember> members, AssociationSet associationSet)
{
Check.NotNull(members, "members");
_members = new ReadOnlyCollection<EdmMember>(new List<EdmMember>(members));
if (null != associationSet)
{
Debug.Assert(2 == Members.Count, "Association bindings must always consist of the end and the key");
// find the association set end
_associationSetEnd = associationSet.AssociationSetEnds[Members[1].Name];
}
}
protected virtual void Visit(AssociationSetEnd associationSetEnd)
{
Visit(associationSetEnd.CorrespondingAssociationEndMember);
Visit(associationSetEnd.EntitySet);
Visit(associationSetEnd.ParentAssociationSet);
}
internal RoleBoolean(AssociationSetEnd end)
{
m_metadataItem = end;
}
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;
}
/// <summary>
/// Converts an association set from SOM to metadata
/// </summary>
/// <param name="relationshipSet">The SOM element to process</param>
/// <param name="providerManifest">The provider manifest to be used for conversion</param>
/// <param name="convertedItemCache">The item collection for currently existing metadata objects</param>
/// <param name="newGlobalItems">The new GlobalItem objects that are created as a result of this conversion</param>
/// <param name="container"></param>
/// <returns>The association set object resulting from the convert</returns>
private static AssociationSet ConvertToAssociationSet(
Som.EntityContainerRelationshipSet relationshipSet,
DbProviderManifest providerManifest,
ConversionCache convertedItemCache,
EntityContainer container,
Dictionary<Som.SchemaElement, GlobalItem> newGlobalItems)
{
Debug.Assert(relationshipSet.Relationship.RelationshipKind == RelationshipKind.Association);
var associationType = (AssociationType)LoadSchemaElement(
(Som.SchemaType)relationshipSet.Relationship,
providerManifest,
convertedItemCache,
newGlobalItems);
var associationSet = new AssociationSet(relationshipSet.Name, associationType);
foreach (var end in relationshipSet.Ends)
{
//-- need the EntityType for the end
var endEntityType = (EntityType)LoadSchemaElement(
end.EntitySet.EntityType,
providerManifest,
convertedItemCache,
newGlobalItems);
//-- need to get the end member
var endMember = (AssociationEndMember)associationType.Members[end.Name];
//-- create the end
var associationSetEnd = new AssociationSetEnd(
GetEntitySet(end.EntitySet, container),
associationSet,
endMember);
AddOtherContent(end, associationSetEnd);
associationSet.AddAssociationSetEnd(associationSetEnd);
// Extract optional Documentation from the end element
if (end.Documentation != null)
{
associationSetEnd.Documentation = ConvertToDocumentation(end.Documentation);
}
}
// Extract the optional Documentation
if (relationshipSet.Documentation != null)
{
associationSet.Documentation = ConvertToDocumentation(relationshipSet.Documentation);
}
AddOtherContent(relationshipSet, associationSet);
return associationSet;
}
// <summary>
// Adds the given end to the collection of ends
// </summary>
internal void AddAssociationSetEnd(AssociationSetEnd associationSetEnd)
{
AssociationSetEnds.Source.Add(associationSetEnd);
}
private static EdmProperty GetAssociatedFkColumn(AssociationSetEnd storeEnd, EdmProperty storeKeyProperty)
{
Debug.Assert(storeEnd != null, "storeEnd != null");
Debug.Assert(storeKeyProperty != null, "storeKeyProperty != null");
var constraint = GetReferentialConstraint(storeEnd.ParentAssociationSet);
if (storeEnd.Name == constraint.FromRole.Name)
{
for (var i = 0; i < constraint.FromProperties.Count; i++)
{
if (constraint.FromProperties[i] == storeKeyProperty)
{
return constraint.ToProperties[i];
}
}
}
return storeKeyProperty;
}
private static EndPropertyMapping BuildEndPropertyMapping(
AssociationSetEnd storeSetEnd,
SimpleMappingContext mappingContext)
{
Debug.Assert(storeSetEnd != null, "storeSetEnd != null");
Debug.Assert(mappingContext != null, "mappingContext != null");
var endPropertyMapping =
new EndPropertyMapping
{
AssociationEnd = mappingContext[storeSetEnd].CorrespondingAssociationEndMember
};
foreach (EdmProperty storeKeyMember in storeSetEnd.EntitySet.ElementType.KeyMembers)
{
var modelKeyMember = mappingContext[storeKeyMember];
var storeFkTableMember = GetAssociatedFkColumn(storeSetEnd, storeKeyMember);
endPropertyMapping.AddPropertyMapping(
new ScalarPropertyMapping(modelKeyMember, storeFkTableMember));
}
return endPropertyMapping;
}
protected override void Visit(AssociationSetEnd associationSetEnd)
{
int index;
if (!AddObjectToSeenListAndHashBuilder(associationSetEnd, out index))
{
return;
}
AddObjectStartDumpToHashBuilder(associationSetEnd, index);
#region Inner data visit
AddObjectContentToHashBuilder(associationSetEnd.Identity);
// Name is covered by Identity
base.Visit(associationSetEnd);
#endregion
AddObjectEndDumpToHashBuilder();
}
// <summary>
// Adds the given end to the collection of ends
// </summary>
internal void AddAssociationSetEnd(AssociationSetEnd associationSetEnd)
{
AssociationSetEnds.Source.Add(associationSetEnd);
}
public void AddMapping(AssociationSetEnd storeAssociationSetEnd, AssociationSetEnd conceptualAssociationSetEnd)
{
_associationSetEndMappings.Add(storeAssociationSetEnd, conceptualAssociationSetEnd);
}
public AssociationSetEnd this[AssociationSetEnd storeAssociationSetEnd]
{
get { return _associationSetEndMappings[storeAssociationSetEnd]; }
}