diff options
author | Michael Shepanski <michael@codesynthesis.com> | 2014-11-04 16:10:03 +1100 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2014-11-10 16:51:17 +0200 |
commit | 521596e38974a68a60dbc8eb083cc881bb11914f (patch) | |
tree | 0225cc3181291198b63042b0e8c26a4235cb5d05 /odb/pgsql/database.hxx | |
parent | 5ccb8ff28beedd9288c077f0f7509a79a819929e (diff) |
Implement {query,execute}_{one,value}() shortcut functions
Useful in situations where the query is know to return at most one element
(*_one) or exactly one element (*_value).
Diffstat (limited to 'odb/pgsql/database.hxx')
-rw-r--r-- | odb/pgsql/database.hxx | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/odb/pgsql/database.hxx b/odb/pgsql/database.hxx index 2a70e96..dda8d31 100644 --- a/odb/pgsql/database.hxx +++ b/odb/pgsql/database.hxx @@ -288,6 +288,68 @@ namespace odb result<T> query (const odb::query_base&); + // Query one API. + // + template <typename T> + typename object_traits<T>::pointer_type + query_one (); + + template <typename T> + bool + query_one (T& object); + + template <typename T> + T + query_value (); + + template <typename T> + typename object_traits<T>::pointer_type + query_one (const char*); + + template <typename T> + bool + query_one (const char*, T& object); + + template <typename T> + T + query_value (const char*); + + template <typename T> + typename object_traits<T>::pointer_type + query_one (const std::string&); + + template <typename T> + bool + query_one (const std::string&, T& object); + + template <typename T> + T + query_value (const std::string&); + + template <typename T> + typename object_traits<T>::pointer_type + query_one (const pgsql::query_base&); + + template <typename T> + bool + query_one (const pgsql::query_base&, T& object); + + template <typename T> + T + query_value (const pgsql::query_base&); + + template <typename T> + typename object_traits<T>::pointer_type + query_one (const odb::query_base&); + + template <typename T> + bool + query_one (const odb::query_base&, T& object); + + template <typename T> + T + query_value (const odb::query_base&); + // Query preparation. // template <typename T> |