#include "cmdline.h" #include "printdata.h" #include "stock.h" #include using namespace std; int main(int argc, char *argv[]) { // Get database access parameters from command line mysqlpp::examples::CommandLine cmdline(argc, argv); if (!cmdline) { return 1; } try { // Establish the connection to the database server. mysqlpp::Connection con(mysqlpp::examples::db_name, cmdline.server(), cmdline.user(), cmdline.pass()); // Retrieve all rows from the stock table and put them in an // STL set. Notice that this works just as well as storing them // in a vector, which we did in ssqls1.cpp. It works because // SSQLS objects are less-than comparable. mysqlpp::Query query = con.query("select * from stock"); set res; query.storein(res); // Display the result set. Since it is an STL set and we set up // the SSQLS to compare based on the item column, the rows will // be sorted by item. print_stock_header(res.size()); set::iterator it; cout.precision(3); for (it = res.begin(); it != res.end(); ++it) { print_stock_row(it->item.c_str(), it->num, it->weight, it->price, it->sDate); } // Use set's find method to look up a stock item by item name. // This also uses the SSQLS comparison setup. it = res.find(stock("Hotdog Buns")); if (it != res.end()) { cout << endl << "Currently " << it->num << " hotdog buns in stock." << endl; } else { cout << endl << "Sorry, no hotdog buns in stock." << endl; } } catch (const mysqlpp::BadQuery& er) { // Handle any query errors cerr << "Query error: " << er.what() << endl; return -1; } catch (const mysqlpp::BadConversion& er) { // Handle bad conversions cerr << "Conversion error: " << er.what() << endl << "\tretrieved data size: " << er.retrieved << ", actual size: " << er.actual_size << endl; return -1; } catch (const mysqlpp::Exception& er) { // Catch-all for any other MySQL++ exceptions cerr << "Error: " << er.what() << endl; return -1; } return 0; }