diff options
Diffstat (limited to 'libodb-qt/odb/qt/basic/mysql')
-rw-r--r-- | libodb-qt/odb/qt/basic/mysql/default-mapping.hxx | 28 | ||||
-rw-r--r-- | libodb-qt/odb/qt/basic/mysql/qbyte-array-traits.hxx | 78 | ||||
-rw-r--r-- | libodb-qt/odb/qt/basic/mysql/qstring-traits.hxx | 93 | ||||
-rw-r--r-- | libodb-qt/odb/qt/basic/mysql/quuid-traits.hxx | 74 |
4 files changed, 273 insertions, 0 deletions
diff --git a/libodb-qt/odb/qt/basic/mysql/default-mapping.hxx b/libodb-qt/odb/qt/basic/mysql/default-mapping.hxx new file mode 100644 index 0000000..996895f --- /dev/null +++ b/libodb-qt/odb/qt/basic/mysql/default-mapping.hxx @@ -0,0 +1,28 @@ +// file : odb/qt/basic/mysql/default-mapping.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_QT_BASIC_MYSQL_DEFAULT_MAPPING_HXX +#define ODB_QT_BASIC_MYSQL_DEFAULT_MAPPING_HXX + +#include <QtCore/QString> +#include <QtCore/QByteArray> +#include <QtCore/QUuid> + +// Map QString to MySQL TEXT for non-id and to VARCHAR(128) for id members. +// MySQL cannot have primary key of the TEXT type. Allow NULL values by +// default as QString provides a null representation. +// +#pragma db value(QString) type("TEXT") id_type("VARCHAR(128)") null + +// Map QByteArray to MySQL BLOB by default. Allow NULL values by default as +// QByteArray provides a null representation. +// +#pragma db value(QByteArray) type("BLOB") null + +// By default map QUuid to MySQL BINARY(16) and use NULL to represent null +// UUIDs. If NULL is disabled (e.g., at the member level), then we store +// the null UUID (i.e., all bytes are zero). +// +#pragma db value(QUuid) type("BINARY(16)") null + +#endif // ODB_QT_BASIC_MYSQL_DEFAULT_MAPPING_HXX diff --git a/libodb-qt/odb/qt/basic/mysql/qbyte-array-traits.hxx b/libodb-qt/odb/qt/basic/mysql/qbyte-array-traits.hxx new file mode 100644 index 0000000..bfcfc69 --- /dev/null +++ b/libodb-qt/odb/qt/basic/mysql/qbyte-array-traits.hxx @@ -0,0 +1,78 @@ +// file : odb/qt/basic/mysql/qbyte-array-traits.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_QT_BASIC_MYSQL_QBYTE_ARRAY_TRAITS_HXX +#define ODB_QT_BASIC_MYSQL_QBYTE_ARRAY_TRAITS_HXX + +#include <odb/pre.hxx> + +#include <cstring> // std::memcpy +#include <cstddef> // std::size_t + +#include <QtCore/QByteArray> + +#include <odb/details/buffer.hxx> +#include <odb/mysql/traits.hxx> + +namespace odb +{ + namespace mysql + { + template <> + struct default_value_traits<QByteArray, id_blob> + { + typedef QByteArray value_type; + typedef QByteArray query_type; + typedef details::buffer image_type; + + static void + set_value (QByteArray& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + if (is_null) + v = QByteArray (); + else + { + // Note that we cannot use replace() here since a suitable + // overload was only added in Qt 4.7. + // + v.resize (static_cast<int> (n)); + std::memcpy (v.data (), b.data (), n); + } + } + + static void + set_image (details::buffer& b, + std::size_t& n, + bool& is_null, + const QByteArray& v) + { + if (v.isNull ()) + is_null = true; + else + { + is_null = false; + + n = static_cast<std::size_t> (v.size ()); + + if (n > b.capacity ()) + b.capacity (n); + + std::memcpy (b.data (), v.data (), n); + } + } + }; + + template <> + struct default_type_traits<QByteArray> + { + static const database_type_id db_type_id = id_blob; + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_QT_BASIC_MYSQL_QBYTE_ARRAY_TRAITS_HXX diff --git a/libodb-qt/odb/qt/basic/mysql/qstring-traits.hxx b/libodb-qt/odb/qt/basic/mysql/qstring-traits.hxx new file mode 100644 index 0000000..6a5f315 --- /dev/null +++ b/libodb-qt/odb/qt/basic/mysql/qstring-traits.hxx @@ -0,0 +1,93 @@ +// file : odb/qt/basic/mysql/qstring-traits.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_QT_BASIC_MYSQL_QSTRING_TRAITS_HXX +#define ODB_QT_BASIC_MYSQL_QSTRING_TRAITS_HXX + +#include <odb/pre.hxx> + +#include <cstring> // std::memcpy +#include <cstddef> // std::size_t + +#include <QtCore/QString> + +#include <odb/details/buffer.hxx> +#include <odb/mysql/traits.hxx> + +namespace odb +{ + namespace mysql + { + class qstring_value_traits + { + public: + typedef QString value_type; + typedef QString query_type; + typedef details::buffer image_type; + + static void + set_value (QString& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + if (is_null) + v = QString (); + else + v = QString::fromUtf8 (b.data (), static_cast<int> (n)); + } + + static void + set_image (details::buffer& b, + std::size_t& n, + bool& is_null, + const QString& v) + { + if (v.isNull ()) + is_null = true; + else + { + is_null = false; + + const QByteArray& a (v.toUtf8 ()); + n = static_cast<std::size_t> (a.size ()); + + if (n > b.capacity ()) + b.capacity (n); + + std::memcpy (b.data (), a.data (), n); + } + } + }; + + template <> + struct default_value_traits<QString, id_string>: qstring_value_traits + { + }; + + template <> + struct default_value_traits<QString, id_decimal>: qstring_value_traits + { + }; + + template <> + struct default_value_traits<QString, id_enum>: qstring_value_traits + { + }; + + template <> + struct default_value_traits<QString, id_set>: qstring_value_traits + { + }; + + template <> + struct default_type_traits<QString> + { + static const database_type_id db_type_id = id_string; + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_QT_BASIC_MYSQL_QSTRING_TRAITS_HXX diff --git a/libodb-qt/odb/qt/basic/mysql/quuid-traits.hxx b/libodb-qt/odb/qt/basic/mysql/quuid-traits.hxx new file mode 100644 index 0000000..c672ee8 --- /dev/null +++ b/libodb-qt/odb/qt/basic/mysql/quuid-traits.hxx @@ -0,0 +1,74 @@ +// file : odb/qt/basic/mysql/uuid-traits.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_QT_BASIC_MYSQL_UUID_TRAITS_HXX +#define ODB_QT_BASIC_MYSQL_UUID_TRAITS_HXX + +#include <odb/pre.hxx> + +#include <cstring> // std::memcpy +#include <cassert> + +#include <QtCore/QUuid> + +#include <odb/mysql/traits.hxx> + +namespace odb +{ + namespace mysql + { + template <> + struct default_value_traits<QUuid, id_blob> + { + typedef QUuid value_type; + typedef value_type query_type; + typedef details::buffer image_type; + + static void + set_value (value_type& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + if (!is_null) + { + assert (n == 16); + std::memcpy (&v.data1, b.data (), 16); + } + else + v = QUuid (); + } + + static void + set_image (details::buffer& b, + std::size_t& n, + bool& is_null, + const value_type& v) + { + // If we can, store nil as NULL. Otherwise, store it as a value. + // + is_null = is_null && v.isNull (); + + if (!is_null) + { + n = 16; + + if (n > b.capacity ()) + b.capacity (n); + + std::memcpy (b.data (), &v.data1, n); + } + } + }; + + template <> + struct default_type_traits<QUuid> + { + static const database_type_id db_type_id = id_blob; + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_QT_BASIC_MYSQL_UUID_TRAITS_HXX |