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 16:50:12 +0200 |
commit | c916368432aaa67364f4e9a541ca5d264ffdb097 (patch) | |
tree | 75fca633d8256a4c3c6c2f1df184db845bc04f0a /odb/mysql/database.hxx | |
parent | 6de3db919419051a68082a64b107ce2ca52e72ad (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/mysql/database.hxx')
-rw-r--r-- | odb/mysql/database.hxx | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/odb/mysql/database.hxx b/odb/mysql/database.hxx index af4fcfe..8d11e72 100644 --- a/odb/mysql/database.hxx +++ b/odb/mysql/database.hxx @@ -375,6 +375,68 @@ namespace odb result<T> query (const odb::query_base&, bool cache = true); + // 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 mysql::query_base&); + + template <typename T> + bool + query_one (const mysql::query_base&, T& object); + + template <typename T> + T + query_value (const mysql::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> |