private static bool CommonEntityTypeMappingRules(EntityTypeMapping etm, ref string errorMessage)
{
// 3. make sure that we don't have any C-side conditions
foreach (var frag in etm.MappingFragments())
{
foreach (var cond in frag.Conditions())
{
if (cond.Name.RefName != null)
{
errorMessage = Resources.MappingDetails_ErrMslUnsupportedCondition;
return(false);
}
}
}
// 4. make sure that function mappings are in their own ETM
if (etm.ModificationFunctionMapping != null)
{
errorMessage = Resources.MappingDetails_ErrMslFunctionMappingsShouldBeSeparate;
return(false);
}
// 7. ensure that ETMs only have one MappingFragment for a given table
var mappedStorageEntitySets = new HashSet <EntitySet>();
foreach (var fragment in etm.MappingFragments())
{
if (fragment.StoreEntitySet.Target != null)
{
if (mappedStorageEntitySets.Contains(fragment.StoreEntitySet.Target))
{
errorMessage = Resources.MappingDetails_ErrMslTooManyFragments;
return(false);
}
else
{
mappedStorageEntitySets.Add(fragment.StoreEntitySet.Target);
}
}
}
return(true);
}
private static MappingFragment FindMappingFragment(EntityTypeMapping etm, EntityType table)
{
foreach (var fragment in etm.MappingFragments())
{
if (fragment.StoreEntitySet.Target == table.EntitySet)
{
return(fragment);
}
}
return(null);
}
/// <summary>
/// Creates a new EntityTypeMapping in the existing EntitySetMapping
/// based on another EntityTypeMapping (etmToClone) in a different artifact.
/// All the other parameters are presumed to already exist in the same artifact
/// as the EntitySetMapping.
/// </summary>
internal static EntityTypeMapping CloneEntityTypeMapping(
CommandProcessorContext cpc,
EntityTypeMapping etmToClone, EntitySetMapping existingEntitySetMapping,
ConceptualEntityType existingEntityType, EntityTypeMappingKind kind)
{
var createETM = new CreateEntityTypeMappingCommand(existingEntitySetMapping, existingEntityType, kind);
var cp = new CommandProcessor(cpc, createETM);
cp.Invoke();
var etm = createETM.EntityTypeMapping;
foreach (var mappingFragment in etmToClone.MappingFragments())
{
var sesToClone = mappingFragment.StoreEntitySet.Target as StorageEntitySet;
var ses = existingEntitySetMapping.EntityContainerMapping.Artifact.
StorageModel().FirstEntityContainer.GetFirstNamedChildByLocalName(sesToClone.LocalName.Value)
as StorageEntitySet;
CreateMappingFragmentCommand.CloneMappingFragment(cpc, mappingFragment, etm, ses);
}
return(etm);
}
private static void GatherConditionsForEntityTypeMapping(EntityInfo info, EntityTypeMapping etm)
{
foreach (var frag in etm.MappingFragments())
{
Debug.Assert(frag.StoreEntitySet.Target != null, "Found a MappingFragment with an unknown StoreEntitySet binding");
Debug.Assert(
frag.StoreEntitySet.Target.EntityType.Target != null, "Found an S-Side entity set with an unknown entity binding");
if (frag.StoreEntitySet.Target != null &&
frag.StoreEntitySet.Target.EntityType.Target != null &&
info.HasTable(frag.StoreEntitySet.Target.EntityType.Target) == false)
{
var table = frag.StoreEntitySet.Target.EntityType.Target;
var ti = new TableInfo(table);
ti.EntityTypeMappingKind = etm.Kind;
info.Tables.Add(table, ti);
}
foreach (var cond in frag.Conditions())
{
info.Conditions.Add(cond);
}
}
}
private static void GatherScalarsForEntityTypeMapping(EntityInfo info, EntityTypeMapping etm)
{
foreach (var frag in etm.MappingFragments())
{
Debug.Assert(frag.StoreEntitySet.Target != null, "frag.StoreEntitySet.Target should not be null");
Debug.Assert(
frag.StoreEntitySet.Target.EntityType.Target != null, "frag.StoreEntitySet.Target.EntityType.Target should not be null");
if (frag.StoreEntitySet.Target != null &&
frag.StoreEntitySet.Target.EntityType.Target != null &&
info.HasTable(frag.StoreEntitySet.Target.EntityType.Target) == false)
{
var table = frag.StoreEntitySet.Target.EntityType.Target;
var ti = new TableInfo(table);
ti.EntityTypeMappingKind = etm.Kind;
info.Tables.Add(table, ti);
}
foreach (var sp in frag.ScalarProperties())
{
if (info.KeyProperties.Contains(sp.Name.Target))
{
info.KeyScalars.Add(sp);
}
else
{
info.NonKeyScalars.Add(sp);
}
}
foreach (var cp in frag.ComplexProperties())
{
GatherScalarsFromComplexProperty(info, cp);
}
}
}