From 6bfcd9d669a7da94d7878b265945cd38b5f1d6bf Mon Sep 17 00:00:00 2001 From: Constantin Michael Date: Tue, 14 Jun 2011 09:59:13 +0200 Subject: Add PostgreSQL common implementation --- odb/relational/pgsql/common.cxx | 378 ++++++++++++++++++++++++++++++++++++++++ odb/relational/pgsql/common.hxx | 214 +++++++++++++++++++++++ 2 files changed, 592 insertions(+) create mode 100644 odb/relational/pgsql/common.cxx create mode 100644 odb/relational/pgsql/common.hxx diff --git a/odb/relational/pgsql/common.cxx b/odb/relational/pgsql/common.cxx new file mode 100644 index 0000000..d1b5474 --- /dev/null +++ b/odb/relational/pgsql/common.cxx @@ -0,0 +1,378 @@ +// file : odb/relational/pgsql/common.cxx +// author : Constantin Michael +// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC +// license : GNU GPL v3; see accompanying LICENSE file + +#include + +#include + +using namespace std; + +namespace relational +{ + namespace pgsql + { + // + // member_base + // + + void member_base:: + traverse (semantics::data_member& m) + { + if (m.count ("transient")) + return; + + string var; + + if (!var_override_.empty ()) + var = var_override_; + else + { + string const& name (m.name ()); + var = name + (name[name.size () - 1] == '_' ? "" : "_"); + } + + semantics::type& t (type_override_ != 0 ? *type_override_ : m.type ()); + + if (comp_value (t)) + { + member_info mi (m, t, var, fq_type_override_); + if (pre (mi)) + { + traverse_composite (mi); + post (mi); + } + } + else if (container (t)) + { + member_info mi (m, t, var, fq_type_override_); + if (pre (mi)) + { + traverse_container (mi); + post (mi); + } + } + else + { + sql_type const& st (column_sql_type (m, key_prefix_)); + + if (semantics::class_* c = object_pointer (t)) + { + member_info mi (m, id_member (*c)->type (), var, fq_type_override_); + mi.st = &st; + if (pre (mi)) + { + traverse_object_pointer (mi); + post (mi); + } + } + else + { + member_info mi (m, t, var, fq_type_override_); + mi.st = &st; + if (pre (mi)) + { + traverse_simple (mi); + post (mi); + } + } + } + } + + void member_base:: + traverse_simple (member_info& mi) + { + switch (mi.st->type) + { + // Integral types. + // + case sql_type::BOOLEAN: + case sql_type::SMALLINT: + case sql_type::INTEGER: + case sql_type::BIGINT: + { + traverse_integer (mi); + break; + } + + // Float types. + // + case sql_type::REAL: + case sql_type::DOUBLE: + { + traverse_float (mi); + break; + } + case sql_type::NUMERIC: + { + traverse_numeric (mi); + break; + } + + // Data-time types. + // + case sql_type::DATE: + case sql_type::TIME: + case sql_type::TIMESTAMP: + { + traverse_date_time (mi); + break; + } + + // String and binary types. + // + case sql_type::CHAR: + case sql_type::VARCHAR: + case sql_type::TEXT: + case sql_type::BYTEA: + { + traverse_string (mi); + break; + } + case sql_type::BIT: + { + traverse_bit (mi); + break; + } + case sql_type::VARBIT: + { + traverse_varbit (mi); + break; + } + // Other types. + // + case sql_type::UUID: + { + traverse_uuid (mi); + break; + } + case sql_type::invalid: + { + assert (false); + break; + } + } + } + + // + // member_image_type + // + + namespace + { + const char* integer_types[] = + { + "bool", + "short", + "int", + "long long" + }; + + const char* float_types[] = + { + "float", + "double" + }; + } + + member_image_type:: + member_image_type (semantics::type* type, + string const& fq_type, + string const& key_prefix) + : relational::member_base (type, fq_type, key_prefix) + { + } + + string member_image_type:: + image_type (semantics::data_member& m) + { + type_.clear (); + member_base::traverse (m); + return type_; + } + + void member_image_type:: + traverse_composite (member_info& mi) + { + type_ = "composite_value_traits< " + mi.fq_type () + " >::image_type"; + } + + void member_image_type:: + traverse_integer (member_info& mi) + { + type_ += integer_types[mi.st->type - sql_type::BOOLEAN]; + } + + void member_image_type:: + traverse_float (member_info& mi) + { + type_ = float_types[mi.st->type - sql_type::REAL]; + } + + void member_image_type:: + traverse_numeric (member_info&) + { + type_ = "details::buffer"; + } + + void member_image_type:: + traverse_date_time (member_info&) + { + type_ = "details::buffer"; + } + + void member_image_type:: + traverse_string (member_info&) + { + type_ = "details::buffer"; + } + + void member_image_type:: + traverse_bit (member_info&) + { + type_ = "unsigned char*"; + } + + void member_image_type:: + traverse_varbit (member_info&) + { + type_ = "details::buffer"; + } + + void member_image_type:: + traverse_uuid (member_info&) + { + type_ = "unsigned char*"; + } + + // + // member_database_type + // + + namespace + { + const char* integer_database_id[] = + { + "id_boolean", + "id_smallint", + "id_integer", + "id_bigint" + }; + + const char* float_database_id[] = + { + "id_real", + "id_double" + }; + + const char* date_time_database_id[] = + { + "id_date", + "id_time", + "id_timestamp" + }; + + const char* char_bin_database_id[] = + { + "id_string", // CHAR + "id_string", // VARCHAR + "id_string", // TEXT, + "id_bytea" // BYTEA + }; + } + + member_database_type_id:: + member_database_type_id (semantics::type* type, + string const& fq_type, + string const& key_prefix) + : relational::member_base (type, fq_type, key_prefix) + { + } + + string member_database_type_id:: + database_type_id (type& m) + { + type_id_.clear (); + member_base::traverse (m); + return type_id_; + } + + void member_database_type_id:: + traverse_composite (member_info&) + { + assert (false); + } + + void member_database_type_id:: + traverse_integer (member_info& mi) + { + type_id_ = string ("pgsql::") + + integer_database_id[mi.st->type - sql_type::BOOLEAN]; + } + + void member_database_type_id:: + traverse_float (member_info& mi) + { + type_id_ = string ("pgsql::") + + float_database_id[mi.st->type - sql_type::REAL]; + } + + void member_database_type_id:: + traverse_numeric (member_info&) + { + type_id_ = "pgsql::id_numeric"; + } + + void member_database_type_id:: + traverse_date_time (member_info& mi) + { + type_id_ = string ("pgsql::") + + date_time_database_id[mi.st->type - sql_type::DATE]; + } + + void member_database_type_id:: + traverse_string (member_info& mi) + { + type_id_ = string ("pgsql::") + + char_bin_database_id[mi.st->type - sql_type::CHAR]; + } + + void member_database_type_id:: + traverse_bit (member_info&) + { + type_id_ = "pgsql::id_bit"; + } + + void member_database_type_id:: + traverse_varbit (member_info&) + { + type_id_ = "pgsql::id_varbit"; + } + + void member_database_type_id:: + traverse_uuid (member_info&) + { + type_id_ = "pgsql::id_uuid"; + } + + // + // query_columns + // + + struct query_columns: relational::query_columns, context + { + query_columns (base const& x): base (x) {} + + virtual string + database_type_id (semantics::data_member& m) + { + return member_database_type_id_.database_type_id (m); + } + + private: + member_database_type_id member_database_type_id_; + }; + entry query_columns_; + } +} diff --git a/odb/relational/pgsql/common.hxx b/odb/relational/pgsql/common.hxx new file mode 100644 index 0000000..52fcd2d --- /dev/null +++ b/odb/relational/pgsql/common.hxx @@ -0,0 +1,214 @@ +// file : odb/relational/pgsql/common.hxx +// author : Constantin Michael +// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC +// license : GNU GPL v3; see accompanying LICENSE file + +#ifndef ODB_RELATIONAL_PGSQL_COMMON_HXX +#define ODB_RELATIONAL_PGSQL_COMMON_HXX + +#include +#include + +namespace relational +{ + namespace pgsql + { + struct member_base: virtual relational::member_base, context + { + member_base (base const& x): base (x) {} + + // This c-tor is for the direct use inside the pgsql namespace. + // If you do use this c-tor, you should also explicitly call + // relational::member_base. + // + member_base () {} + + virtual void + traverse (semantics::data_member& m); + + struct member_info + { + semantics::data_member& m; // Member. + semantics::type& t; // Member C++ type (m.type () may != t). + sql_type const* st; // Member SQL type (only simple values). + string& var; // Member variable name with trailing '_'. + + // C++ type fq-name. + // + string + fq_type () const + { + // Use the original type from 'm' instead of 't' since the hint + // may be invalid for a different type. Plus, if a type is + // overriden, then the fq_type must be as well. + // + return fq_type_.empty () + ? m.type ().fq_name (m.belongs ().hint ()) + : fq_type_; + } + + string const& fq_type_; + + member_info (semantics::data_member& m_, + semantics::type& t_, + string& var_, + string const& fq_type) + : m (m_), t (t_), st (0), var (var_), fq_type_ (fq_type) + { + } + }; + + // The false return value indicates that no further callbacks + // should be called for this member. + // + virtual bool + pre (member_info&) + { + return true; + } + + virtual void + post (member_info&) + { + } + + virtual void + traverse_composite (member_info&) + { + } + + virtual void + traverse_container (member_info&) + { + } + + virtual void + traverse_object_pointer (member_info& mi) + { + traverse_simple (mi); + } + + virtual void + traverse_simple (member_info&); + + virtual void + traverse_integer (member_info&) + { + } + + virtual void + traverse_float (member_info&) + { + } + + virtual void + traverse_numeric (member_info&) + { + } + + virtual void + traverse_date_time (member_info&) + { + } + + virtual void + traverse_string (member_info&) + { + } + + virtual void + traverse_bit (member_info&) + { + } + + virtual void + traverse_varbit (member_info&) + { + } + + virtual void + traverse_uuid (member_info&) + { + } + }; + + struct member_image_type: member_base + { + member_image_type (semantics::type* type = 0, + string const& fq_type = string (), + string const& key_prefix = string ()); + string + image_type (semantics::data_member&); + + virtual void + traverse_composite (member_info&); + + virtual void + traverse_integer (member_info&); + + virtual void + traverse_float (member_info&); + + virtual void + traverse_numeric (member_info&); + + virtual void + traverse_date_time (member_info&); + + virtual void + traverse_string (member_info&); + + virtual void + traverse_bit (member_info&); + + virtual void + traverse_varbit (member_info&); + + virtual void + traverse_uuid (member_info&); + + private: + string type_; + }; + + struct member_database_type_id: member_base + { + member_database_type_id (semantics::type* type = 0, + string const& fq_type = string (), + string const& key_prefix = string ()); + string + database_type_id (type&); + + virtual void + traverse_composite (member_info&); + + virtual void + traverse_integer (member_info&); + + virtual void + traverse_float (member_info&); + + virtual void + traverse_numeric (member_info&); + + virtual void + traverse_date_time (member_info&); + + virtual void + traverse_string (member_info&); + + virtual void + traverse_bit (member_info&); + + virtual void + traverse_varbit (member_info&); + + virtual void + traverse_uuid (member_info&); + + private: + string type_id_; + }; + } +} +#endif // ODB_RELATIONAL_PGSQL_COMMON_HXX -- cgit v1.1