private void GenerateIndependentAssociationType(
EdmAssociationType associationType, DbDatabaseMapping databaseMapping)
{
//Contract.Requires(associationType != null);
//Contract.Requires(databaseMapping != null);
EdmAssociationEnd principalEnd, dependentEnd;
if (!associationType.TryGuessPrincipalAndDependentEnds(out principalEnd, out dependentEnd))
{
if (!associationType.IsPrincipalConfigured())
{
throw Error.UnableToDeterminePrincipal(
associationType.SourceEnd.EntityType.GetClrType(),
associationType.TargetEnd.EntityType.GetClrType());
}
principalEnd = associationType.SourceEnd;
dependentEnd = associationType.TargetEnd;
}
var dependentEntityTypeMapping = GetEntityTypeMappingInHierarchy(databaseMapping, dependentEnd.EntityType);
var dependentTable = dependentEntityTypeMapping
.TypeMappingFragments
.First()
.Table;
var associationSetMapping
= GenerateAssociationSetMapping(
associationType, databaseMapping, principalEnd, dependentEnd, dependentTable);
GenerateIndependentForeignKeyConstraint(
databaseMapping,
principalEnd.EntityType,
dependentEnd.EntityType,
dependentTable,
associationSetMapping,
associationSetMapping.SourceEndMapping,
associationType.Name,
principalEnd);
foreach (var property in dependentEnd.EntityType.KeyProperties())
{
associationSetMapping.TargetEndMapping.PropertyMappings.Add(
new DbEdmPropertyMapping
{
Column = dependentEntityTypeMapping.GetPropertyMapping(property).Column,
PropertyPath = new[] { property }
});
}
}