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yap-6.3/library/MYDDAS/myddas_assert_predicates.ypp
U-WIN-U2045GN0RNQ\Vítor Santos Costa 840e287cda mode changes
2011-07-25 17:09:28 +01:00

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/*************************************************************************
* *
* YAP Prolog *
* *
* Yap Prolog was developed at NCCUP - Universidade do Porto *
* *
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
* *
**************************************************************************
* *
* File: myddas_assert_predicates.yap *
* Last rev: *
* mods: *
* comments: Predicates that assert other for the MyDDAS Interface *
* *
*************************************************************************/
:- module(myddas_assert_predicates,[
db_import/2,
db_import/3,
db_view/2,
db_view/3,
db_insert/2,
db_insert/3,
db_abolish/2,
db_listing/0,
db_listing/1
]).
:- use_module(myddas,[
db_module/1
]).
:- use_module(myddas_errors,[
'$error_checks'/1
]).
:- use_module(myddas_util_predicates,[
'$get_values_for_insert'/3,
'$make_atom'/2,
'$write_or_not'/1,
'$copy_term_nv'/4,
'$assert_attribute_information'/4,
'$make_a_list'/2,
'$where_exists'/2,
'$build_query'/5
]).
:- use_module(myddas_prolog2sql,[
translate/3,
queries_atom/2
]).
:- use_module(myddas_mysql,[
db_my_result_set/1
]).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% db_import/3
% db_import/2
%
db_import(RelationName,PredName):-
db_import(myddas,RelationName,PredName).
db_import(Connection,RelationName,PredName) :-
'$error_checks'(db_import(Connection,RelationName,PredName)),
get_value(Connection,Con),
c_db_connection_type(Con,ConType),
% get relation arity
( ConType == mysql ->
c_db_my_number_of_fields(RelationName,Con,Arity)
;
c_db_odbc_number_of_fields(RelationName,Con,Arity)
),
db_module(Module),
not c_db_check_if_exists_pred(PredName,Arity,Module),
R=..[relation,PredName,Arity,RelationName],
% assert relation fact
assert(myddas_prolog2sql:R),
Size is 2*Arity,
'$make_a_list'(Size,TypesList),
% get attributes types in TypesList [field0,type0,field1,type1...]
( ConType == mysql ->
c_db_my_get_attributes_types(RelationName,Con,TypesList)
;
c_db_odbc_get_attributes_types(RelationName,Con,TypesList)
),
% assert attributes facts
'$assert_attribute_information'(0,Arity,RelationName,TypesList),
% build PredName functor
functor(P,PredName,Arity),
P=..[PredName|LA],
M=myddas_assert_predicates,
%build PredName clause
( ConType == mysql ->
Assert =..[':-',P,','(M:'$copy_term_nv'(P,[],G,_),
','(M:translate(G,G,Code),
','(M:queries_atom(Code,FinalSQL),
','(M:db_my_result_set(Mode),
','(M:'$write_or_not'(FinalSQL),
','(M:c_db_my_query(FinalSQL,ResultSet,Con,Mode,_),
','(!,M:c_db_my_row(ResultSet,Arity,LA))))))))]
;
'$make_a_list'(Arity,BindList),
Assert =..[':-',P,','(M:'$copy_term_nv'(P,[],G,_),
','(M:translate(G,G,Code),
','(M:queries_atom(Code,FinalSQL),
','(M:c_db_odbc_query(FinalSQL,ResultSet,Arity,BindList,Con),
','(M:'$write_or_not'(FinalSQL),
','(!,M:c_db_odbc_row(ResultSet,BindList,LA)))))))]
),
assert(Module:Assert),
c_db_add_preds(PredName,Arity,Module,Con).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% db_view/3
% db_view/2
%
db_view(PredName,DbGoal) :-
db_view(myddas,PredName,DbGoal).
db_view(Connection,PredName,DbGoal) :-
'$error_checks'(db_view(Connection,PredName,DbGoal)),
get_value(Connection,Con),
% get arity of projection term
functor(PredName,ViewName,Arity),
db_module(Module),
not c_db_check_if_exists_pred(ViewName,Arity,Module),
% This copy_term is done to prevent the unification
% with top-level variables A='var('A')' error
copy_term((PredName,DbGoal),(CopyView,CopyGoal)),
CopyView=..[ViewName|LA],
M=myddas_assert_predicates,
c_db_connection_type(Con,ConType),
% build view clause
( ConType == mysql ->
Assert =..[':-',CopyView,
','(M:'$copy_term_nv'(CopyView,[],ProjT,Dic),
','(M:'$copy_term_nv'(CopyGoal,Dic,NG,_),
','(M:translate(ProjT,NG,Code),
','(M:queries_atom(Code,FinalSQL),
','(M:db_my_result_set(Mode),
','(M:'$write_or_not'(FinalSQL),
','(M:c_db_my_query(FinalSQL,ResultSet,Con,Mode,_),
','(!,M:c_db_my_row(ResultSet,Arity,LA)))))))))]
;
% Assert =..[':-',NewName,
% ','(M:translate(CopyView,CopyGoal,Code),
% ','(M:queries_atom(Code,FinalSQL),
% ','(M:'$make_a_list'(Arity,BindList),
% ','(M:'$write_or_not'(FinalSQL),
% ','(M:c_db_odbc_query(FinalSQL,ResultSet,Arity,BindList,Con),
% ','(!,M:c_db_odbc_row(ResultSet,BindList,LA)))))))]
true
),
assert(Module:Assert),
c_db_add_preds(ViewName,Arity,Module,Con).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% db_insert/3
%
%
db_insert(RelationName,PredName) :-
db_insert(myddas,RelationName,PredName).
db_insert(Connection,RelationName,PredName) :-
'$error_checks'(db_insert3(Connection,RelationName,PredName)),
get_value(Connection,Con),
c_db_connection_type(Con,ConType),
% get relation arity
( ConType == mysql ->
c_db_my_number_of_fields(RelationName,Con,Arity)
;
c_db_odbc_number_of_fields(RelationName,Con,Arity)
),
db_module(Module),
not c_db_check_if_exists_pred(PredName,Arity,Module),
R=..[relation,PredName,Arity,RelationName],
% assert relation fact
assert(myddas_prolog2sql:R),
% build PredName functor
functor(Predicate,PredName,Arity),
Predicate=..[PredName|LA],
Size is 2*Arity,
'$make_a_list'(Size,TypesList),
% get attributes types in TypesList [field0,type0,field1,type1...]
% and build PredName clause
( ConType == mysql ->
c_db_my_get_attributes_types(RelationName,Con,TypesList),
Assert =..[':-',Predicate,','(myddas_assert_predicates:'$get_values_for_insert'(TypesList,LA,ValuesList),
','(myddas_assert_predicates:'$make_atom'(['INSERT INTO `',RelationName,'` VALUES ('|ValuesList],SQL),
','(myddas_assert_predicates:db_my_result_set(Mode),
','(myddas_assert_predicates:'$write_or_not'(SQL),
myddas_assert_predicates:c_db_my_query(SQL,_,Con,Mode,_)))))]
;
c_db_odbc_get_attributes_types(RelationName,Con,TypesList),
Assert =..[':-',Predicate,','(myddas_assert_predicates:'$get_values_for_insert'(TypesList,LA,ValuesList),
','(myddas_assert_predicates:'$make_atom'(['INSERT INTO `',RelationName,'` VALUES ('|ValuesList],SQL),
','(myddas_assert_predicates:'$write_or_not'(SQL),
myddas_assert_predicates:c_db_odbc_query(SQL,_,_,_,Con))))]
),
assert(Module:Assert),
c_db_add_preds(PredName,Arity,Module,Con).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% db_abolish(+,+)
%
%
db_abolish(Module:PredName,Arity):-!,
'$error_checks'(db_abolish(Module:PredName,Arity)),
c_db_delete_predicate(Module,PredName,Arity),
abolish(Module:PredName,Arity).
db_abolish(PredName,Arity):-
'$error_checks'(db_abolish(PredName,Arity)),
db_module(Module),
c_db_delete_predicate(Module,PredName,Arity),
abolish(Module:PredName,Arity).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% db_abolish(+,+)
%
%
db_abolish(Module:PredName,Arity):-!,
'$error_checks'(db_abolish(Module:PredName,Arity)),
c_db_delete_predicate(Module,PredName,Arity),
abolish(Module:PredName,Arity).
db_abolish(PredName,Arity):-
'$error_checks'(db_abolish(PredName,Arity)),
db_module(Module),
c_db_delete_predicate(Module,PredName,Arity),
abolish(Module:PredName,Arity).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% db_listing.
%
%
db_listing:-
c_db_connection(Con),
c_db_preds_conn(Con,Module,Name,Arity),
listing(Module:Name/Arity),
fail.
db_listing.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% db_listing.
%
%
db_listing(Module:Name/Arity):-!,
c_db_connection(Con),
c_db_preds_conn(Con,Module,Name,Arity),
listing(Module:Name/Arity).
db_listing(Name/Arity):-!,
c_db_connection(Con),
c_db_preds_conn(Con,Module,Name,Arity),
listing(Module:Name/Arity).
db_listing(Name):-
c_db_connection(Con),
c_db_preds_conn(Con,Module,Name,Arity),
listing(Module:Name/Arity).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%