Left join when foreign key property is nullable - fixes #27.

henkmollema · Apr 2, 2015 · fdb991d · fdb991d
1 parent a86e9d0
commit fdb991d
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/Dommel/DommelMapper.cs b/src/Dommel/DommelMapper.cs
@@ -381,7 +381,10 @@ private static IEnumerable<TReturn> MultiMap<T1, T2, T3, T4, T5, T6, T7, TReturn
                 var includeKeyColumnName = Resolvers.Column(includeKeyProperty);
                 var foreignKeyProperty = Resolvers.ForeignKeyProperty(type, includeType);
 
-                sql += string.Format(" inner join {0} on {1}.{2} = {0}.{3}",
+                sql += string.Format(" {0} join {1} on {2}.{3} = {1}.{4}",
+                    Nullable.GetUnderlyingType(foreignKeyProperty.PropertyType) != null
+                        ? "left"
+                        : "inner",
                     includeTableName,
                     tableName,
                     foreignKeyProperty.Name,