4630006e9f
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1481 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
337 lines
8.6 KiB
Prolog
337 lines
8.6 KiB
Prolog
/*************************************************************************
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* *
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* YAP Prolog *
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* *
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* Yap Prolog was developed at NCCUP - Universidade do Porto *
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* *
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* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
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* *
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**************************************************************************
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* *
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* File: myddas.yap *
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* Last rev: *
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* mods: *
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* comments: Global predicates for the MyDDAS Interface *
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* *
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*************************************************************************/
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:- module(myddas,[
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db_open/5,
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db_close/1,
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db_verbose/1,
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db_module/1,
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db_is_database_predicate/3,
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db_stats/2,
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db_sql_select/3,
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db_insert/2,
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db_create_table/3,
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db_export_view/4,
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db_get_attributes_types/3,
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db_number_of_fields/3,
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% myddas_assert_predicates.yap
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db_import/3,
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db_view/3,
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db_insert/3,
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% myddas_mysql.yap
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db_my_open/5,
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db_my_close/1,
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db_my_import/3,
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db_my_view/3,
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db_my_insert/2,
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db_my_insert/3,
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db_my_result_set/1,
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db_my_describe/2,
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db_my_describe/3,
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db_my_show_tables/1,
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db_my_show_tables/2,
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db_my_sql_select/3,
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db_my_number_of_fields/3,
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db_my_get_attributes_types/3
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]).
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:- use_module(myddas_assert_predicates,[
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db_import/3,
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db_view/3,
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db_insert/3
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]).
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:- use_module(myddas_mysql,[
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db_my_open/5,
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db_my_close/1,
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db_my_import/3,
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db_my_view/3,
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db_my_insert/2,
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db_my_insert/3,
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db_my_result_set/1,
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db_my_describe/2,
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db_my_describe/3,
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db_my_show_tables/1,
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db_my_show_tables/2,
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db_my_sql_select/3,
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db_my_number_of_fields/3,
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db_my_get_attributes_types/3
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]).
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:- use_module(myddas_util_predicates,[
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'$process_sql_goal'/4,
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'$process_fields'/3,
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'$get_values_for_insert'/3,
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'$make_atom'/2,
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'$write_or_not'/1,
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'$abolish_all'/1,
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'$make_a_list'/2
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]).
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:- use_module(myddas_errors,[
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'$error_checks'/1
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]).
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:- use_module(myddas_prolog2sql,[
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translate/3
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]).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_open/5
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%
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%
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db_open(mysql,Connection,Host/Db,User,Password) :-!,
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'$error_checks'(db_open(mysql,Connection,Host/Db,User,Password)),
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c_db_my_connect(Host,User,Password,Db,Con),
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set_value(Connection,Con).
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db_open(odbc,Connection,ODBCEntry,User,Password) :-!,
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'$error_checks'(db_open(odbc,Connection,ODBCEntry,User,Password)),
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c_db_odbc_connect(ODBCEntry,User,Password,Con),
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set_value(Connection,Con).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_close/1
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%
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%
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db_close(Connection):-
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'$error_checks'(db_close(Connection)),
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get_value(Connection,Con),
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'$abolish_all'(Con).
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db_close(Connection) :-
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'$error_checks'(db_close(Connection)),
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get_value(Connection,Con),
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c_db_connection_type(Con,ConType),
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( ConType == mysql ->
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c_db_my_disconnect(Con)
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;
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c_db_odbc_disconnect(Con)
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),
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set_value(Connection,[]). % "deletes" atom
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_verbose/1
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%
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%
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db_verbose(X):-
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var(X),!,
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get_value(db_verbose,X).
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db_verbose(1):-!,
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set_value(db_verbose,1).
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db_verbose(_):-
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set_value(db_verbose,0).
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%default value
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:- db_verbose(0).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_module/1
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%
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%
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db_module(X):-
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var(X),!,
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get_value(db_module,X).
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db_module(ModuleName):-
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set_value(db_module,ModuleName).
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% default value
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:- db_module(user).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_is_database_predicate/3
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%
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%
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db_is_database_predicate(PredName,Arity,Module):-
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'$error_checks'(db_is_database_predicate(PredName,Arity,Module)),
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c_db_check_if_exists_pred(PredName,Arity,Module).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_stats/2
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%
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%
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:- set_value(db_myddas_stats_count,0).
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db_stats(Connection,List):-
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NumberOfStats = 6,
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'$make_a_list'(NumberOfStats,List),
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( var(Connection) ->
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c_db_stats(0,List)
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;
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get_value(Connection,Conn),
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c_db_stats(Conn,List)
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),
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write('MYDDAS'),nl,write(List),nl,
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get_value(db_myddas_stats_count,Value),
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write(Value),nl.
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_sql_select/3
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%
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%
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db_sql_select(Connection,SQL,LA):-
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'$error_checks'(db_sql_select(Connection,SQL,LA)),
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get_value(Connection,Con),
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c_db_connection_type(Con,ConType),
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( ConType == mysql ->
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c_db_my_number_of_fields_in_query(SQL,Con,Arity)
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;
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c_db_odbc_number_of_fields(SQL,Con,Arity)
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),
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'$make_a_list'(Arity,LA),
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'$write_or_not'(SQL),
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( ConType == mysql ->
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db_my_result_set(Mode),
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c_db_my_query(SQL,ResultSet,Con,Mode),!,
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c_db_my_row(ResultSet,Arity,LA)
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;
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'$make_a_list'(Arity,BindList),
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c_db_odbc_query(SQL,ResultSet,Arity,BindList,Con),!,
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c_db_odbc_row(ResultSet,BindList,LA)
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).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_insert/2
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%
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%
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db_insert(Connection,PredName):-
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translate(PredName,PredName,Code),
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'$error_checks'(db_insert2(Connection,PredName,Code)),
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'$get_values_for_insert'(Code,ValuesList,RelName),
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'$make_atom'(['INSERT INTO ',RelName,' VALUES'|ValuesList],SQL),
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get_value(Connection,Con),
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c_db_connection_type(Con,ConType),
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'$write_or_not'(SQL),
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( ConType == mysql ->
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db_my_result_set(Mode),
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c_db_my_query(SQL,_,Con,Mode)
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;
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c_db_odbc_query(SQL,_,_,_,Con)
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).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_create_table/3
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% FieldsList = [field(Name,Type,Null,Key,DefaultValue)]
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% Example [field(campo1,'char(12)',y,y,a),field(campo2,int,y,y,0)]
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% TODO Test with ODBC & Type Checks
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db_create_table(Connection,TableName,FieldsInf):-
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'$error_checks'(db_create_table(Connection,TableName,FieldsInf)),
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get_value(Connection,Con),
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'$process_fields'(FieldsInf,FieldString,KeysSQL),
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'$make_atom'(['CREATE TABLE `',TableName,'` ( ',FieldString,KeysSQL,' )'],FinalSQL),
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c_db_connection_type(Con,ConType),
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'$write_or_not'(FinalSQL),
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( ConType == mysql ->
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db_my_result_set(Mode),
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c_db_my_query(FinalSQL,_,Con,Mode)
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;
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c_db_odbc_query(FinalSQL,_,_,_,Con)
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).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_export_view/4
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% TODO Test with ODBC
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%
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db_export_view(Connection,TableViewName,SQLorDbGoal,FieldsInf):-
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'$error_checks'(db_export_view(Connection,TableViewName,SQLorDbGoal,FieldsInf)),
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get_value(Connection,Con),
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'$process_sql_goal'(TableViewName,SQLorDbGoal,TableName,SQL),
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% Case there's some information about the
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% attribute fields of the relation given
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% by the user
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( FieldsInf == [] ->
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'$make_atom'(['CREATE TABLE ',TableName,' AS ',SQL],FinalSQL)
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;
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'$process_fields'(FieldsInf,FieldString,KeysSQL),
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'$make_atom'(['CREATE TABLE ',TableName,' (',FieldString,KeysSQL,') AS ',SQL],FinalSQL)
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),
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c_db_connection_type(Con,ConType),
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'$write_or_not'(FinalSQL),
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( ConType == mysql ->
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db_my_result_set(Mode),
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c_db_my_query(FinalSQL,_,Con,Mode)
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;
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c_db_odbc_query(FinalSQL,_,_,_,Con)
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).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_get_attributes_types/3
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%
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%
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db_get_attributes_types(Connection,RelationName,TypesList) :-
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'$error_checks'(db_get_attributes_types(Connection,RelationName,TypesList)),
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get_value(Connection,Con),
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c_db_connection_type(Con,ConType),
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( ConType == mysql ->
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c_db_my_number_of_fields(RelationName,Con,Arity)
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;
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c_db_odbc_number_of_fields(RelationName,Con,Arity)
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),
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Size is 2*Arity,
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'$make_a_list'(Size,TypesList),
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c_db_connection_type(Con,ConType),
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( ConType == mysql ->
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c_db_my_get_attributes_types(RelationName,Con,TypesList)
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;
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c_db_odbc_get_attributes_types(RelationName,Con,TypesList)
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).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_number_of_fields/3
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%
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%
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db_number_of_fields(Connection,RelationName,Arity) :-
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'$error_checks'(db_number_of_fields(Connection,RelationName,Arity)),
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get_value(Connection,Con),
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c_db_connection_type(Con,ConType),
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( ConType == mysql ->
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c_db_my_number_of_fields(RelationName,Con,Arity)
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;
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c_db_odbc_number_of_fields(RelationName,Con,Arity)
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).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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