public EntityInfo(MetadataModel model, EntityMetadata entity)
{
EntityMetadata = entity;
// RootType ermitteln
var root = entity;
while (root.BaseEntity != null)
{
root = root.BaseEntity;
}
RootType = root;
var scalarBuilder = ImmutableList.CreateBuilder <ScalarProperty>();
var navigationBuilder = ImmutableList.CreateBuilder <NavigationPropertyMetadata>();
var reverseBuilder = ImmutableList.CreateBuilder <NavigationPropertyMetadata>();
var foreignKeyBuilder = ImmutableDictionary.CreateBuilder <ScalarProperty, NavigationPropertyMetadata>();
// Properties befüllen
FillProperties(model, entity, scalarBuilder, navigationBuilder, reverseBuilder, foreignKeyBuilder);
NavigationProperties = navigationBuilder.ToImmutable();
ReverseNavigationProperties = reverseBuilder.ToImmutable();
ScalarProperties = scalarBuilder.ToImmutable();
ForeignKeyProperties = foreignKeyBuilder.ToImmutable();
_mergeByKeyDelegate = GetMergeByKeyDelegate(root);
}
private static void FillProperties(
MetadataModel model,
EntityMetadata entity,
ImmutableList <ScalarProperty> .Builder scalarProperties,
ImmutableList <NavigationPropertyMetadata> .Builder navigationProperties,
ImmutableList <NavigationPropertyMetadata> .Builder reverseNavigationProperties,
ImmutableDictionary <ScalarProperty, NavigationPropertyMetadata> .Builder foreignKeys)
{
// Skalar Properties
foreach (var prop in entity.GetProperties())
{
scalarProperties.Add(prop);
}
// Navigation Properties
foreach (var prop in entity.GetNavigations())
{
navigationProperties.Add(prop);
}
// Reverse-Navigation Properties inkl. aller Base-Entities ermitteln
var parent = entity;
while (parent != null)
{
foreach (var prop in model.Entities
.SelectMany(p => p.GetNavigations())
.Where(p => p.TargetEntity == parent)
.Distinct())
{
reverseNavigationProperties.Add(prop);
}
parent = parent.BaseEntity;
}
// Foreign-Keys ermitteln
var result = from np in navigationProperties
from fk in np.ForeignKeyProperties
select new { fk.Dependant, Nav = np };
result.ToList().ForEach(p => foreignKeys.Add(p.Dependant, p.Nav));
}