diff options
Diffstat (limited to 'odb/mysql/header.cxx')
| -rw-r--r-- | odb/mysql/header.cxx | 299 |
1 files changed, 107 insertions, 192 deletions
diff --git a/odb/mysql/header.cxx b/odb/mysql/header.cxx index 0d34991..65221f8 100644 --- a/odb/mysql/header.cxx +++ b/odb/mysql/header.cxx @@ -25,177 +25,19 @@ namespace mysql "double" }; - struct image_member_base: traversal::data_member, context + struct image_member: member_base { - image_member_base (context& c) - : context (c) + image_member (context& c, bool id) + : member_base (c, id) { } virtual void - traverse (type& m) - { - string const& name (m.name ()); - var = name + (name[name.size () - 1] == '_' ? "" : "_"); - - os << "// " << name << endl - << "//" << endl; - - sql_type const& t (db_type (m)); - - switch (t.type) - { - // Integral types. - // - case sql_type::TINYINT: - case sql_type::SMALLINT: - case sql_type::MEDIUMINT: - case sql_type::INT: - case sql_type::BIGINT: - { - traverse_integer (m, t); - break; - } - - // Float types. - // - case sql_type::FLOAT: - case sql_type::DOUBLE: - { - traverse_float (m, t); - break; - } - case sql_type::DECIMAL: - { - traverse_decimal (m, t); - break; - } - - // Data-time types. - // - case sql_type::DATE: - case sql_type::TIME: - case sql_type::DATETIME: - case sql_type::TIMESTAMP: - case sql_type::YEAR: - { - traverse_date_time (m, t); - break; - } - - // String and binary types. - // - case sql_type::CHAR: - case sql_type::VARCHAR: - case sql_type::TINYTEXT: - case sql_type::TEXT: - case sql_type::MEDIUMTEXT: - case sql_type::LONGTEXT: - { - // For string types the limit is in characters rather - // than in bytes. The fixed-length pre-allocated buffer - // optimization can only be used for 1-byte encodings. - // To support this we will need the character encoding - // in sql_type. - // - traverse_long_string (m, t); - break; - } - case sql_type::BINARY: - { - // BINARY's range is always 255 or less from MySQL 5.0.3. - // - traverse_short_string (m, t); - break; - } - case sql_type::VARBINARY: - case sql_type::TINYBLOB: - case sql_type::BLOB: - case sql_type::MEDIUMBLOB: - case sql_type::LONGBLOB: - { - if (t.range && t.range_value <= 255) - traverse_short_string (m, t); - else - traverse_long_string (m, t); - - break; - } - - // Other types. - // - case sql_type::BIT: - { - traverse_bit (m, t); - break; - } - case sql_type::ENUM: - { - traverse_enum (m, t); - break; - } - case sql_type::SET: - { - traverse_set (m, t); - break; - } - } - } - - virtual void - traverse_integer (type&, sql_type const&) - { - } - - virtual void - traverse_float (type&, sql_type const&) - { - } - - virtual void - traverse_decimal (type&, sql_type const&) - { - } - - virtual void - traverse_date_time (type&, sql_type const&) - { - } - - virtual void - traverse_short_string (type&, sql_type const&) - { - } - - virtual void - traverse_long_string (type&, sql_type const&) - { - } - - virtual void - traverse_bit (type&, sql_type const&) - { - } - - virtual void - traverse_enum (type&, sql_type const&) - { - } - - virtual void - traverse_set (type&, sql_type const&) - { - } - - protected: - string var; - }; - - struct image_member: image_member_base - { - image_member (context& c) - : image_member_base (c) + pre (type& m) { + if (!id_) + os << "// " << m.name () << endl + << "//" << endl; } virtual void @@ -226,11 +68,10 @@ namespace mysql // Exchanged as strings. Can have up to 65 digits not counting // '-' and '.'. If range is not specified, the default is 10. // - os << "const char* " << var << "value;" + os << "char " << var << "value[" << + (t.range ? t.range_value : 10) + 3 << "];" << "unsigned long " << var << "size;" << "my_bool " << var << "null;" - << "char " << var << "buffer[" << - (t.range ? t.range_value : 10) + 3 << "];" << endl; } @@ -253,21 +94,19 @@ namespace mysql { // If range is not specified, the default buffer size is 255. // - os << "const char* " << var << "value;" + os << "char " << var << "value[" << + (t.range ? t.range_value : 255) + 1 << "];" << "unsigned long " << var << "size;" << "my_bool " << var << "null;" - << "char " << var << "buffer[" << - (t.range ? t.range_value : 255) + 1 << "];" << endl; } virtual void traverse_long_string (type&, sql_type const& t) { - os << "const char* " << var << "value;" + os << "odb::buffer " << var << "value;" << "unsigned long " << var << "size;" << "my_bool " << var << "null;" - << "odb::buffer " << var << "buffer;" << endl; } @@ -279,6 +118,7 @@ namespace mysql unsigned int n (t.range / 8 + (t.range % 8 ? 1 : 0)); os << "unsigned char " << var << "value[" << n << "];" + << "unsigned long " << var << "size;" << "my_bool " << var << "null;" << endl; } @@ -288,10 +128,9 @@ namespace mysql { // Represented as string. // - os << "const char* " << var << "value;" + os << "odb::buffer " << var << "value;" << "unsigned long " << var << "size;" << "my_bool " << var << "null;" - << "odb::buffer " << var << "buffer;" << endl; } @@ -300,10 +139,9 @@ namespace mysql { // Represented as string. // - os << "const char* " << var << "value;" + os << "odb::buffer " << var << "value;" << "unsigned long " << var << "size;" << "my_bool " << var << "null;" - << "odb::buffer " << var << "buffer;" << endl; } }; @@ -311,7 +149,7 @@ namespace mysql struct image_type: traversal::class_, context { image_type (context& c) - : context (c), image_member_ (c) + : context (c), image_member_ (c, false) { *this >> names_image_member_ >> image_member_; } @@ -332,10 +170,38 @@ namespace mysql traversal::names names_image_member_; }; + struct id_image_type: traversal::class_, context + { + id_image_type (context& c) + : context (c), image_member_ (c, true) + { + *this >> names_image_member_ >> image_member_; + } + + virtual void + traverse (type& c) + { + os << "struct id_image_type" + << "{"; + + names (c); + + os << "};"; + } + + private: + image_member image_member_; + traversal::names names_image_member_; + }; + struct class_: traversal::class_, context { class_ (context& c) - : context (c), image_type_ (c) + : context (c), + id_member_ (c), + member_count_ (c), + image_type_ (c), + id_image_type_ (c) { } @@ -352,10 +218,9 @@ namespace mysql // Find the id member and type. // - id_member t (*this); - t.traverse (c); + id_member_.traverse (c); - if (t.member () == 0) + if (id_member_.member () == 0) { cerr << c.file () << ":" << c.line () << ":" << c.column () << " error: no data member designated as object id" << endl; @@ -363,11 +228,9 @@ namespace mysql cerr << c.file () << ":" << c.line () << ":" << c.column () << " info: use '#pragma odb id' to specify object id member" << endl; - - throw generation_failed (); } - semantics::data_member& id (*t.member ()); + semantics::data_member& id (*id_member_.member ()); semantics::type& id_type (id.type ()); if (id_type.anonymous ()) @@ -385,6 +248,25 @@ namespace mysql throw generation_failed (); } + member_count_.traverse (c); + size_t column_count (member_count_.count ()); + + if (column_count == 0) + { + cerr << c.file () << ":" << c.line () << ":" << c.column () + << " error: no persistent data members in the class" << endl; + + throw generation_failed (); + } + + bool has_grow; + { + has_grow_member m (*this); + traversal::names n (m); + names (c, n); + has_grow = m.result (); + } + os << "// " << c.name () << endl << "//" << endl; @@ -408,19 +290,27 @@ namespace mysql // image_type_.traverse (c); + // id_image_type + // + id_image_type_.traverse (c); + // id_source // os << "static const odb::id_source id_source = odb::ids_assigned;" << endl; - // column_count @@ + // column_count // - os << "static const std::size_t column_count = 10;" + os << "static const std::size_t column_count = " << column_count << + "UL;" << endl; - // insert_query + // Queries. // os << "static const char* const insert_query;" + << "static const char* const select_query;" + << "static const char* const update_query;" + << "static const char* const delete_query;" << endl; // id () @@ -429,15 +319,30 @@ namespace mysql << "id (const object_type&);" << endl; - // bind () + // grow () + // + if (has_grow) + { + os << "static bool" << endl + << "grow (image_type&, my_bool*);" + << endl; + } + + // bind (image_type) // os << "static void" << endl - << "bind (MYSQL_BIND*, image_type&);" + << "bind (mysql::binding&, image_type&);" << endl; - // init (image, object) + // bind (id_image_type) // os << "static void" << endl + << "bind (mysql::binding&, id_image_type&);" + << endl; + + // init (image, object) + // + os << "static bool" << endl << "init (image_type&, object_type&);" << endl; @@ -472,13 +377,21 @@ namespace mysql << endl; os << "static bool" << endl - << "find (database&, const id_type&, object_type&);"; + << "find (database&, const id_type&, object_type&);" + << endl; + + os << "private:" << endl + << "static bool" << endl + << "find (mysql::object_statements<object_type>&, const id_type&);"; os << "};"; } private: + id_member id_member_; + member_count member_count_; image_type image_type_; + id_image_type id_image_type_; }; } @@ -507,6 +420,8 @@ namespace mysql ctx.os << "#include <odb/core.hxx>" << endl << "#include <odb/traits.hxx>" << endl << "#include <odb/buffer.hxx>" << endl + << endl + << "#include <odb/mysql/forward.hxx>" << endl << endl; ctx.os << "namespace odb" |