diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2011-10-27 15:16:49 +0200 |
---|---|---|
committer | Boris Kolpackov <boris@codesynthesis.com> | 2011-10-27 15:16:49 +0200 |
commit | b64c3b462f99ef7337eb4bc7fa6bb258d619d8b3 (patch) | |
tree | faa051ca29584a40112dfdcb37bbf1fdff457b8c /odb/pgsql/object-result.txx | |
parent | 6e7b115c7d136c6d99984eaae21e2404a948d550 (diff) |
Add support for persistent classes without object ids
New pragma id (object). New test: common/no-id.
Diffstat (limited to 'odb/pgsql/object-result.txx')
-rw-r--r-- | odb/pgsql/object-result.txx | 115 |
1 files changed, 102 insertions, 13 deletions
diff --git a/odb/pgsql/object-result.txx b/odb/pgsql/object-result.txx index b10afe4..57a70d7 100644 --- a/odb/pgsql/object-result.txx +++ b/odb/pgsql/object-result.txx @@ -11,17 +11,21 @@ namespace odb { namespace pgsql { + // + // object_result_impl + // + template <typename T> - result_impl<T, class_object>:: - ~result_impl () + object_result_impl<T>:: + ~object_result_impl () { } template <typename T> - result_impl<T, class_object>:: - result_impl (const query&, - details::shared_ptr<select_statement> statement, - object_statements<object_type>& statements) + object_result_impl<T>:: + object_result_impl (const query&, + details::shared_ptr<select_statement> statement, + object_statements<object_type>& statements) : base_type (statements.connection ().database ()), statement_ (statement), statements_ (statements) @@ -29,7 +33,7 @@ namespace odb } template <typename T> - void result_impl<T, class_object>:: + void object_result_impl<T>:: load (object_type& obj) { load_image (); @@ -66,8 +70,8 @@ namespace odb } template <typename T> - typename result_impl<T, class_object>::id_type - result_impl<T, class_object>:: + typename object_result_impl<T>::id_type + object_result_impl<T>:: load_id () { load_image (); @@ -75,7 +79,7 @@ namespace odb } template <typename T> - void result_impl<T, class_object>:: + void object_result_impl<T>:: next () { this->current (pointer_type ()); @@ -85,7 +89,7 @@ namespace odb } template <typename T> - void result_impl<T, class_object>:: + void object_result_impl<T>:: load_image () { // The image can grow between calls to load() as a result of other @@ -120,13 +124,98 @@ namespace odb } template <typename T> - void result_impl<T, class_object>:: + void object_result_impl<T>:: + cache () + { + } + + template <typename T> + std::size_t object_result_impl<T>:: + size () + { + return statement_->result_size (); + } + + // + // object_result_impl_no_id + // + + template <typename T> + object_result_impl_no_id<T>:: + ~object_result_impl_no_id () + { + } + + template <typename T> + object_result_impl_no_id<T>:: + object_result_impl_no_id (const query&, + details::shared_ptr<select_statement> statement, + object_statements_no_id<object_type>& statements) + : base_type (statements.connection ().database ()), + statement_ (statement), + statements_ (statements) + { + } + + template <typename T> + void object_result_impl_no_id<T>:: + load (object_type& obj) + { + // The image can grow between calls to load() as a result of other + // statements execution. + // + typename object_traits::image_type& im (statements_.image ()); + + if (im.version != statements_.select_image_version ()) + { + binding& b (statements_.select_image_binding ()); + object_traits::bind (b.bind, im, statement_select); + statements_.select_image_version (im.version); + b.version++; + } + + select_statement::result r (statement_->load ()); + + if (r == select_statement::truncated) + { + if (object_traits::grow (im, statements_.select_image_truncated ())) + im.version++; + + if (im.version != statements_.select_image_version ()) + { + binding& b (statements_.select_image_binding ()); + object_traits::bind (b.bind, im, statement_select); + statements_.select_image_version (im.version); + b.version++; + statement_->reload (); + } + } + + odb::database& db (this->database ()); + + object_traits::callback (db, obj, callback_event::pre_load); + object_traits::init (obj, im, db); + object_traits::callback (db, obj, callback_event::post_load); + } + + template <typename T> + void object_result_impl_no_id<T>:: + next () + { + this->current (pointer_type ()); + + if (!statement_->next ()) + this->end_ = true; + } + + template <typename T> + void object_result_impl_no_id<T>:: cache () { } template <typename T> - std::size_t result_impl<T, class_object>:: + std::size_t object_result_impl_no_id<T>:: size () { return statement_->result_size (); |