414 lines
13 KiB
Plaintext
414 lines
13 KiB
Plaintext
/*************************************************************************
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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_assert_predicates.yap *
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* Last rev: *
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* mods: *
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* comments: Predicates that assert other for the MyDDAS Interface *
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* *
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*************************************************************************/
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:- module(myddas_assert_predicates,[
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db_import/2,
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db_import/3,
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db_view/2,
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db_view/3,
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db_insert/2,
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db_insert/3,
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db_abolish/2,
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db_listing/0,
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db_listing/1
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]).
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:- use_module(myddas,[
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db_module/1
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]).
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:- use_module(myddas_errors,[
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'$error_checks'/1
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]).
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:- use_module(myddas_util_predicates,[
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'$get_values_for_insert'/3,
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'$make_atom'/2,
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'$write_or_not'/1,
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'$copy_term_nv'/4,
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'$assert_attribute_information'/4,
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'$make_a_list'/2,
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'$where_exists'/2,
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'$build_query'/5
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]).
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:- use_module(myddas_prolog2sql,[
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translate/3,
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queries_atom/2
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]).
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:- use_module(myddas_mysql,[
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db_my_result_set/1
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]).
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:- use_module(myddas_sqlite3,[
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sqlite3_result_set/1,
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c_sqlite3_change_database/2,
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c_sqlite3_connect/4,
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c_sqlite3_disconnect/1,
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c_sqlite3_get_attributes_types/3,
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c_sqlite3_get_database/2,
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c_sqlite3_get_fields_properties/3,
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c_sqlite3_get_next_result_set/3,
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c_sqlite3_query/5,
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c_sqlite3_number_of_fields/3,
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c_sqlite3_row/3
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]).
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:- use_module(myddas_odbc,[
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odbc_result_set/1,
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c_odbc_change_database/2,
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c_odbc_connect/4,
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c_odbc_disconnect/1,
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c_odbc_get_attributes_types/3,
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c_odbc_get_database/2,
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c_odbc_get_fields_properties/3,
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c_odbc_get_next_result_set/3,
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c_odbc_query/5,
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c_odbc_number_of_fields/3,
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c_odbc_row/3
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]).
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:- meta_predicate db_import(+,+,:), db_import(+,:).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_import/3
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% db_import/2
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%
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db_import(RelationName,PredName):-
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db_import(myddas,RelationName,PredName).
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db_import(Connection,RelationName,PredName0) :-
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'$error_checks'(db_import(Connection,RelationName,PredName0)),
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get_value(Connection,Con),
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table_arity( Con, ConType, RelationName, Arity ),
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strip_module(PredName0, Module, PredName),
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not c_db_check_if_exists_pred(PredName,Arity,Module),
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R=..[relation,PredName,Arity,RelationName],
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% assert relation fact
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assert(myddas_prolog2sql:R),
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Size is 2*Arity,
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length(TypesList, Size),
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% get attributes types in TypesList [field0,type0,field1,type1...]
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table_attributes( ConType, Con, RelationName, TypesList ),
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% assert attributes facts
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'$assert_attribute_information'(0,Arity,RelationName,TypesList),
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% build PredName functor
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functor(P,PredName,Arity),
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P=..[PredName|LA],
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M=myddas_assert_predicates,
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%build PredName clause
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table_access_predicate( ConType, Con, Arity, P, LA, M, Assert ),
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assert(Module:Assert),
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c_db_add_preds(PredName,Arity,Module,Con).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_view/3
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% db_view/2
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%
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db_view(PredName,DbGoal) :-
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db_view(myddas,PredName,DbGoal).
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db_view(Connection,PredName,DbGoal) :-
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'$error_checks'(db_view(Connection,PredName,DbGoal)),
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get_value(Connection,Con),
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% get arity of projection term
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functor(PredName,ViewName,Arity),
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db_module(Module),
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not c_db_check_if_exists_pred(ViewName,Arity,Module),
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% This copy_term is done to prevent the unification
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% with top-level variables A='var('A')' error
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copy_term((PredName,DbGoal),(CopyView,CopyGoal)),
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CopyView=..[ViewName|LA],
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M=myddas_assert_predicates,
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c_db_connection_type(Con,ConType),
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% build view clause
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table_view( ConType, Con, CopyView, CopyGoal, Arity, LA, M, Assert ),
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assert(Module:Assert),
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c_db_add_preds(ViewName,Arity,Module,Con).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_insert/3
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%
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%
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db_insert(RelationName,PredName) :-
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db_insert(myddas,RelationName,PredName).
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db_insert(Connection,RelationName,PredName) :-
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'$error_checks'(db_insert3(Connection,RelationName,PredName)),
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get_value(Connection,Con),
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c_db_connection_type(Con,ConType),
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% get relation arity
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table_arity( Con, ConType, RelationName, Arity ),
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db_module(Module),
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not c_db_check_if_exists_pred(PredName,Arity,Module),
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R=..[relation,PredName,Arity,RelationName],
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% assert relation fact
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assert(myddas_prolog2sql:R),
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% build PredName functor
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functor(Predicate,PredName,Arity),
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Predicate=..[PredName|LA],
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Size is 2*Arity,
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'$make_a_list'(Size,TypesList),
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% get attributes types in TypesList [field0,type0,field1,type1...]
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% and build PredName clause
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table_insert( ConType, Con, RelationName, TypesList, Predicate, LA, Assert ),
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assert(Module:Assert),
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c_db_add_preds(PredName,Arity,Module,Con).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_abolish(+,+)
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%
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%
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db_abolish(Module:PredName,Arity):-!,
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'$error_checks'(db_abolish(Module:PredName,Arity)),
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c_db_delete_predicate(Module,PredName,Arity),
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abolish(Module:PredName,Arity).
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db_abolish(PredName,Arity):-
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'$error_checks'(db_abolish(PredName,Arity)),
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db_module(Module),
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c_db_delete_predicate(Module,PredName,Arity),
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abolish(Module:PredName,Arity).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_abolish(+,+)
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%
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%
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db_abolish(Module:PredName,Arity):-!,
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'$error_checks'(db_abolish(Module:PredName,Arity)),
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c_db_delete_predicate(Module,PredName,Arity),
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abolish(Module:PredName,Arity).
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db_abolish(PredName,Arity):-
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'$error_checks'(db_abolish(PredName,Arity)),
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db_module(Module),
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c_db_delete_predicate(Module,PredName,Arity),
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abolish(Module:PredName,Arity).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_listing.
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%
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%
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db_listing:-
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c_db_connection(Con),
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c_db_preds_conn(Con,Module,Name,Arity),
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listing(Module:Name/Arity),
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fail.
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db_listing.
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_listing.
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%
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%
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db_listing(Module:Name/Arity):-!,
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c_db_connection(Con),
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c_db_preds_conn(Con,Module,Name,Arity),
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listing(Module:Name/Arity).
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db_listing(Name/Arity):-!,
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c_db_connection(Con),
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c_db_preds_conn(Con,Module,Name,Arity),
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listing(Module:Name/Arity).
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db_listing(Name):-
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c_db_connection(Con),
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c_db_preds_conn(Con,Module,Name,Arity),
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listing(Module:Name/Arity).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% table_arity :- number of columns in a relation.
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%
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table_arity( Con, ConType, RelationName, Arity ) :-
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c_db_connection_type(Con,ConType),
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writeln( ConType ),
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% get relation arity
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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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ConType == postgres ->
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c_postgres_number_of_fields(RelationName,Con,Arity)
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;
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ConType == odbc ->
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c_odbc_number_of_fields(RelationName,Con,Arity)
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;
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c_sqlite3_number_of_fields(RelationName,Con,Arity))
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.
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% major attributes types.
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table_attributes( mysql, Con, RelationName, TypesList ) :-
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c_db_my_get_attributes_types(RelationName,Con,TypesList).
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table_attributes( postgres, Con, RelationName, TypesList ) :-
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c_postgres_get_attributes_types(RelationName,Con,TypesList).
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table_attributes( odbc, Con, RelationName, TypesList ) :-
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c_odbc_get_attributes_types(RelationName,Con,TypesList).
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table_attributes( sqlite3, Con, RelationName, TypesList ) :-
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c_sqlite3_get_attributes_types(RelationName,Con,TypesList).
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% predicate for DB-> query
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table_access_predicate( mysql, Con, Arity, P, LA, M,
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( P :- M:('$copy_term_nv'(P,[],G,_),
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translate(G,G,Code),
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queries_atom(Code,FinalSQL),
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db_my_result_set(Mode),
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'$write_or_not'(FinalSQL),
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c_db_my_query(FinalSQL,ResultSet,Con,Mode,_),
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!,
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c_db_my_row(ResultSet,Arity,LA) ))).
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table_access_predicate( postgres, Con, Arity, P, LA, M,
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( P :- M:('$copy_term_nv'(P,[],G,_),
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translate(G,G,Code),
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queries_atom(Code,FinalSQL),
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db_my_result_set(Mode),
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'$write_or_not'(FinalSQL),
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c_postgres_query(FinalSQL,ResultSet,Con,Mode,_),
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!,
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c_postgsres_row(ResultSet,Arity,LA) ))).
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table_access_predicate( sqlite3, Con, Arity, P, LA, M,
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( P :- M:('$copy_term_nv'(P,[],G,_),
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translate(G,G,Code),
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queries_atom(Code,FinalSQL),
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sqlite3_result_set(Mode),
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'$write_or_not'(FinalSQL),
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c_sqlite3_query(FinalSQL,ResultSet,Con,Mode,_),
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!,
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c_sqlite3_row(ResultSet,Arity,LA)
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) )).
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table_access_predicate( odbc, Con, Arity, P, LA, M,
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( P :- M:('$copy_term_nv'(P,[],G,_),
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translate(G,G,Code),
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queries_atom(Code,FinalSQL),
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c_odbc_result_set(Mode),
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'$write_or_not'(FinalSQL),
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c_odbc_query(FinalSQL,ResultSet,Con,Mode,_),
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!,
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c_odbc_row(ResultSet,Arity,LA)
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) )).
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table_insert( mysql, Con, RelationName, TypesList, Predicate, LA,
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( Predicate :- myddas_assert_predicates:
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( '$get_values_for_insert'(TypesList,LA,ValuesList),
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'$make_atom'(['INSERT INTO `',RelationName,'` VALUES ('|ValuesList],SQL),
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db_my_result_set(Mode),
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'$write_or_not'(SQL),
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c_db_my_query(SQL,_,Con,Mode,_)))
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).
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table_insert( postgres, Con, RelationName, TypesList, Predicate, LA,
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( Predicate :- myddas_assert_predicates:
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( '$get_values_for_insert'(TypesList,LA,ValuesList),
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'$make_atom'(['INSERT INTO `',RelationName,'` VALUES ('|ValuesList],SQL),
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postgres_result_set(Mode),
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'$write_or_not'(SQL),
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c_postgres_query(SQL,_,Con,Mode,_)))
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).
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table_insert( sqlite3, Con, RelationName, TypesList, Predicate, LA,
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( Predicate :- myddas_assert_predicates:
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( '$get_values_for_insert'(TypesList,LA,ValuesList),
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'$make_atom'(['INSERT INTO `',RelationName,'` VALUES ('|ValuesList],SQL),
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sqlite3_result_set(Mode),
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'$write_or_not'(SQL),
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c_sqlite3_query(SQL,_,Con,Mode,_)))
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).
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table_insert( odbc, Con, RelationName, TypesList, Predicate, LA,
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( Predicate :- myddas_assert_predicates:
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( '$get_values_for_insert'(TypesList,LA,ValuesList),
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'$make_atom'(['INSERT INTO `',RelationName,'` VALUES ('|ValuesList],SQL),
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'$write_or_not'(SQL),
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c_odbc_my_query(SQL,_,_,_,Con)))
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).
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table_view( mysql, Con, CopyView, CopyGoal, Arity, LA, M,
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( CopyView :-
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M:( '$copy_term_nv'(CopyView,[],ProjT,Dic),
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'$copy_term_nv'(CopyGoal,Dic,NG,_),
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translate(ProjT,NG,Code),
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queries_atom(Code,FinalSQL),
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db_my_result_set(Mode),
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'$write_or_not'(FinalSQL),
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c_db_my_query(FinalSQL,ResultSet,Con,Mode,_),
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!,
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c_db_my_row(ResultSet,Arity,LA) ))).
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table_view( postgres, Con, CopyView, CopyGoal, Arity, LA, M,
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( CopyView :-
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M:( '$copy_term_nv'(CopyView,[],ProjT,Dic),
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'$copy_term_nv'(CopyGoal,Dic,NG,_),
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translate(ProjT,NG,Code),
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queries_atom(Code,FinalSQL),
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db_my_result_set(Mode),
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'$write_or_not'(FinalSQL),
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c_postgres_query(FinalSQL,ResultSet,Con,Mode,_),
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!,
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c_postgres_row(ResultSet,Arity,LA) ))).
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table_view( odbc, Con, CopyView, CopyGoal, Arity, LA, M,
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( CopyView :-
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M:( '$copy_term_nv'(CopyView,[],ProjT,Dic),
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'$copy_term_nv'(CopyGoal,Dic,NG,_),
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translate(ProjT,NG,Code),
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length(BindList, Arity ),
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queries_atom(Code,FinalSQL),
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'$write_or_not'(FinalSQL),
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c_odbc_query(FinalSQL,ResultSet,Arity,BindList,Con),
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!,
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c_odbc_row(ResultSet,Arity,LA) ))).
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table_view( sqlite3, Con, CopyView, CopyGoal, Arity, LA, M,
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( CopyView :-
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M:( '$copy_term_nv'(CopyView,[],ProjT,Dic),
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'$copy_term_nv'(CopyGoal,Dic,NG,_),
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translate(ProjT,NG,Code),
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queries_atom(Code,FinalSQL),
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'$write_or_not'(FinalSQL),
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c_sqlite3_query(FinalSQL,ResultSet,Con,_,_),
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!,
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c_sqlite3_row(ResultSet,Arity,LA) ))).
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