// ...
/// <summary>
/// This method loads all the relationship type that this entity takes part in
/// </summary>
/// <param name="entityType"></param>
/// <param name="context"></param>
private void LoadRelationshipTypes()
{
foreach (EdmRelationshipAttribute roleAttribute in
SourceAssembly.GetCustomAttributes(typeof(EdmRelationshipAttribute), false /*inherit*/))
{
// Check if there is an entry already with this name
if (TryFindNullParametersInRelationshipAttribute(roleAttribute))
{
// don't give more errors for these same bad parameters
continue;
}
bool errorEncountered = false;
// return error if the role names are the same
if (roleAttribute.Role1Name == roleAttribute.Role2Name)
{
SessionData.EdmItemErrors.Add(new EdmItemError(
System.Data.Entity.Strings.SameRoleNameOnRelationshipAttribute(roleAttribute.RelationshipName, roleAttribute.Role2Name),
null));
errorEncountered = true;
}
if (!errorEncountered)
{
AssociationType associationType = new AssociationType(
roleAttribute.RelationshipName, roleAttribute.RelationshipNamespaceName,
roleAttribute.IsForeignKey, DataSpace.OSpace);
SessionData.TypesInLoading.Add(associationType.FullName, associationType);
TrackClosure(roleAttribute.Role1Type);
TrackClosure(roleAttribute.Role2Type);
// prevent lifting of loop vars
string r1Name = roleAttribute.Role1Name;
Type r1Type = roleAttribute.Role1Type;
RelationshipMultiplicity r1Multiplicity = roleAttribute.Role1Multiplicity;
AddTypeResolver(() =>
ResolveAssociationEnd(associationType, r1Name, r1Type, r1Multiplicity));
// prevent lifting of loop vars
string r2Name = roleAttribute.Role2Name;
Type r2Type = roleAttribute.Role2Type;
RelationshipMultiplicity r2Multiplicity = roleAttribute.Role2Multiplicity;
AddTypeResolver(() =>
ResolveAssociationEnd(associationType, r2Name, r2Type, r2Multiplicity));
// get assembly entry and add association type to the list of types in the assembly
Debug.Assert(!CacheEntry.ContainsType(associationType.FullName), "Relationship type must not be present in the list of types");
CacheEntry.TypesInAssembly.Add(associationType);
}
}
}