4e1a9d0588
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1507 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
127 lines
4.1 KiB
Prolog
127 lines
4.1 KiB
Prolog
/*************************************************************************
|
|
* *
|
|
* 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_errors.yap *
|
|
* Last rev: *
|
|
* mods: *
|
|
* comments: MYDDAS errors checks and errors Messages *
|
|
* *
|
|
*************************************************************************/
|
|
|
|
:- module(myddas_errors,[
|
|
'$error_checks'/1
|
|
]).
|
|
|
|
:- use_module(myddas_util_predicates,[
|
|
'$make_a_list'/2,
|
|
'$check_fields'/2
|
|
]).
|
|
|
|
:- use_module(lists,[
|
|
is_list/1
|
|
]).
|
|
|
|
'$error_checks'(db_command(Connection,SQL)):-!,
|
|
atom(Connection),
|
|
nonvar(SQL).
|
|
'$error_checks'(db_stats(_,List)):-!,
|
|
var(List).
|
|
'$error_checks'(db_export_view(Connection,TableViewName,SQLorDbGoal,FieldsInf)):-!,
|
|
atom(Connection),
|
|
( atom(TableViewName) -> atom(SQLorDbGoal) ; true ),
|
|
( atom(SQLorDbGoal) -> atom(TableViewName) ; true ),
|
|
is_list(FieldsInf).
|
|
'$error_checks'(db_create_table(Connection,TableName,FieldsInf)):-!,
|
|
atom(Connection),
|
|
atom(TableName),
|
|
FieldsInf = [_|_].
|
|
'$error_checks'(db_insert3(Connection,RelationName,PredName)):-!,
|
|
atom(Connection),
|
|
atom(RelationName),
|
|
atom(PredName).
|
|
'$error_checks'(db_insert2(Connection,_,[query(Att,[rel(Relation,_)],_)])) :- !,
|
|
atom(Connection),
|
|
get_value(Connection,Con),
|
|
% Number of fields of the Relation, must be
|
|
% equal to the number of attributes
|
|
c_db_connection_type(Con,ConType),
|
|
( ConType == mysql ->
|
|
c_db_my_number_of_fields(Relation,Con,Arity)
|
|
;
|
|
c_db_odbc_number_of_fields(Relation,Con,Arity)
|
|
),
|
|
length(Att,Arity),
|
|
% All fields must be Instanciated ( FALTA POR O NULL )
|
|
'$make_a_list'(Arity,FieldsProperties),
|
|
( ConType == mysql ->
|
|
c_db_my_get_fields_properties(Relation,Con,FieldsProperties)
|
|
;
|
|
c_db_odbc_get_fields_properties(Relation,Con,FieldsProperties)
|
|
),
|
|
'$check_fields'(Att,FieldsProperties).
|
|
'$error_checks'(db_open(mysql,Connection,Host/Db,User,Password)) :- !,
|
|
nonvar(Host), % == \+var(Host)
|
|
nonvar(User),
|
|
nonvar(Password),
|
|
nonvar(Db),
|
|
atom(Connection),
|
|
get_value(Connection,[]). % Nao pode ter nenhum valor atribuido
|
|
'$error_checks'(db_open(odbc,Connection,ODBCEntry,User,Password)) :- !,
|
|
nonvar(ODBCEntry), % == \+var(ODBCEntry)
|
|
nonvar(User),
|
|
nonvar(Password),
|
|
atom(Connection),
|
|
get_value(Connection,[]). % Nao pode ter nenhum valor atribuido
|
|
'$error_checks'(db_view(Connection,PredName,DbGoal)) :- !,
|
|
atom(Connection),
|
|
nonvar(DbGoal),
|
|
nonvar(PredName).
|
|
'$error_checks'(db_import(Connection,RelationName,PredName)) :- !,
|
|
atom(Connection),
|
|
atom(RelationName),
|
|
atom(PredName).
|
|
'$error_checks'(db_get_attributes_types(Connection,RelationName,_)) :- !,
|
|
atom(Connection),
|
|
nonvar(RelationName).
|
|
'$error_checks'(db_sql_select(Connection,SQL,LA)):- !,
|
|
atom(Connection),
|
|
nonvar(SQL),
|
|
not ground(LA).
|
|
'$error_checks'(db_number_of_fields(Connection,RelationName,_)) :- !,
|
|
atom(Connection),
|
|
nonvar(RelationName).
|
|
'$error_checks'(db_close(Connection)) :- !,
|
|
atom(Connection).
|
|
% must have only one relation
|
|
'$error_checks'(db_my_describe(Relation,_)) :- !,
|
|
nonvar(Relation).
|
|
'$error_checks'(db_my_show_tables(_)):- !.
|
|
'$error_checks'(db_is_database_predicate(PredName,Arity,Module)):-!,
|
|
nonvar(PredName),
|
|
nonvar(Arity),
|
|
nonvar(Module).
|
|
% Prevent the error of given an atom that has no value
|
|
'$error_checks'(get_value(Connection,Con)) :- !,
|
|
% This also prevents the case of giving the number of the connection
|
|
% as an argument
|
|
atom(Connection),
|
|
var(Con),
|
|
get_value(Connection,Value),
|
|
Value \== [].
|
|
|
|
% Prevent the error of given an atom that has no value
|
|
'$error_checks'(get_value(Conn,Connection)) :- !,
|
|
% This also prevents the case of giving the number of the connection
|
|
% as an argument
|
|
atom(Conn),
|
|
var(Connection),
|
|
get_value(Conn,Value),
|
|
Value \== [].
|