private static void MoveDefaultDiscriminator(
StorageMappingFragment fromFragment, StorageMappingFragment toFragment)
{
var discriminatorColumn = fromFragment.GetDefaultDiscriminator();
if (discriminatorColumn != null)
{
var discriminator = fromFragment.ColumnConditions.SingleOrDefault(
cc => cc.ColumnProperty == discriminatorColumn);
if (discriminator != null)
{
fromFragment.RemoveDefaultDiscriminatorAnnotation();
fromFragment.RemoveConditionProperty(discriminator);
toFragment.AddDiscriminatorCondition(discriminator.ColumnProperty, discriminator.Value);
toFragment.SetDefaultDiscriminator(discriminator.ColumnProperty);
}
}
}
public static EdmProperty RemoveDefaultDiscriminatorCondition(
this StorageMappingFragment entityTypeMappingFragment)
{
DebugCheck.NotNull(entityTypeMappingFragment);
var discriminatorColumn = entityTypeMappingFragment.GetDefaultDiscriminator();
if (discriminatorColumn != null &&
entityTypeMappingFragment.ColumnConditions.Any())
{
Debug.Assert(entityTypeMappingFragment.ColumnConditions.Count() == 1);
entityTypeMappingFragment.RemoveConditionProperty(
entityTypeMappingFragment.ColumnConditions.Single());
}
entityTypeMappingFragment.RemoveDefaultDiscriminatorAnnotation();
return(discriminatorColumn);
}
/// <summary>
/// Makes sure only the required property mappings are present
/// </summary>
private static void ConfigureTypeMappings(
TableMapping tableMapping,
Dictionary <EntityType, StorageEntityTypeMapping> rootMappings,
EntityType entityType,
StorageMappingFragment propertiesTypeMappingFragment,
StorageMappingFragment conditionTypeMappingFragment)
{
var existingPropertyMappings =
new List <ColumnMappingBuilder>(
propertiesTypeMappingFragment.ColumnMappings.Where(pm => !pm.ColumnProperty.IsPrimaryKeyColumn));
var existingConditions = new List <StorageConditionPropertyMapping>(propertiesTypeMappingFragment.ColumnConditions);
foreach (var columnMapping in from cm in tableMapping.ColumnMappings
from pm in cm.PropertyMappings
where pm.EntityType == entityType
select new
{
cm.Column,
Property = pm
})
{
if (columnMapping.Property.PropertyPath != null
&&
!IsRootTypeMapping(
rootMappings, columnMapping.Property.EntityType, columnMapping.Property.PropertyPath))
{
var existingPropertyMapping =
propertiesTypeMappingFragment.ColumnMappings.SingleOrDefault(
x => x.PropertyPath == columnMapping.Property.PropertyPath);
if (existingPropertyMapping != null)
{
existingPropertyMappings.Remove(existingPropertyMapping);
}
else
{
existingPropertyMapping
= new ColumnMappingBuilder(columnMapping.Column, columnMapping.Property.PropertyPath);
propertiesTypeMappingFragment.AddColumnMapping(existingPropertyMapping);
}
}
if (columnMapping.Property.Conditions != null)
{
foreach (var condition in columnMapping.Property.Conditions)
{
if (conditionTypeMappingFragment.ColumnConditions.Contains(condition))
{
existingConditions.Remove(condition);
}
else if (!entityType.Abstract)
{
conditionTypeMappingFragment.AddConditionProperty(condition);
}
}
}
}
// Any leftover mappings are removed
foreach (var leftoverPropertyMapping in existingPropertyMappings)
{
propertiesTypeMappingFragment.RemoveColumnMapping(leftoverPropertyMapping);
}
foreach (var leftoverCondition in existingConditions)
{
conditionTypeMappingFragment.RemoveConditionProperty(leftoverCondition);
}
if (entityType.Abstract)
{
propertiesTypeMappingFragment.ClearConditions();
}
}
