data_root DeleteCollections method

tpl/macros_struct.twig

@@ -1012,4 +1012,15 @@ func Delete{{ s.name }}Diff(ctx context.Context, dbe metadb.Execer, ids {{ s.nam
 	{%~ endfor %}
 	return nil
 }
+
+func Delete{{ s.name }}Collections(ctx context.Context, dbe metadb.Execer, {{ delete_by|varname }} {{ delete_by.type|go_type }}) error {
+	{%~ for f in ctx.fields %}
+	{%~ if f.type is array %}
+	if err := Delete{{ f.type.value.name }}Collection(ctx, dbe, {{ delete_by|varname }}); err != nil {
+		return err
+	}
+	{%~ endif %}
+	{%~ endfor %}
+	return nil
+}
 {% endmacro root_delete %}