Database querys problems!
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Hi all!
I'm creating a simple project with SQLITE to store some data, but I'm having some problems!
When I need the query another table in the middle of another query, the first query only return one item...
Example: I query the table "produto" ( "product" in english), and then and I need query the "pessoa" ("person" in english) to get the supplier. If I remove the query to get the "pessoa" my "QList<Produto*> " return 3 itens, and if i leave the query to "pessoa" my "QList<Produto*> " only return the first one item on the table.@
QList<Produto*> ProdutoDAO::listarProdutos(QString filtro) {
QList<Produto*> lista;
QSqlDatabase database = SingletonSession::getDatabase();
if (database.open())
{
QSqlQuery query(database);
QString sqlSelect = "SELECT * FROM PRODUTO WHERE";
sqlSelect.append(" (NOME LIKE '%" + filtro + "%')");
sqlSelect.append("OR (DESCRICAO LIKE '%" + filtro + "%')");
query.prepare(sqlSelect);
query.exec();
while (query.next()) {
lista.append( parseRecordToObject(query) );
}
query.finish();
}
return lista;
}
@@
Produto* ProdutoDAO::parseRecordToObject(QSqlQuery query) {
QSqlRecord record = query.record();
Produto* obj = new Produto();
obj->setId(query.value(record.indexOf("id")).toInt());
obj->setDescricao(query.value(record.indexOf("descricao")).toString());
obj->setPrecoVenda(query.value(record.indexOf("venda")).toDouble());
obj->setNome(query.value(record.indexOf("nome")).toString());
int idFornecedor = query.value(record.indexOf("myFornecedor")).toInt();
PessoaDAO* pessoaDAO = new PessoaDAO();
Pessoa* fornecedor = pessoaDAO->buscarPessoa(idFornecedor);
obj->setMyFornecedor(fornecedor);
return obj;
}
@@
static QSqlDatabase getDatabase()
{
QSqlDatabase database = QSqlDatabase::database(getConnectionName());
if (! database.isValid())
{
database = QSqlDatabase::addDatabase(DRIVER, getConnectionName());
database.setDatabaseName( getDataBaseName() );
}
isDataBaseCreated();
return database;
}
@I make another project in the past, using the same idea and some resources but using Qt4.8 and I never get problems with that, in this new project I'm getting problems, I'm using Qt5.2.
Please can some one help me to solve this problem?
Thanks a lot -
Hi,
Did you check the query that you have generated ? Print the content of lastQuery() so you'll see if there's something fishy with it.
Hope it helps
