database stuff

src/main.cpp

@@ -1,15 +1,18 @@
+#include <exception>
 #include <iostream>
 #include <filesystem>
 #include <memory>
 #include <string>
 
+#include "models.h"
+#include <mysql/mysql.h>
 #include "oatpp/network/server/Server.hpp"
 #include "oatpp/network/server/SimpleTCPConnectionProvider.hpp"
 #include "oatpp/web/server/HttpConnectionHandler.hpp"
 
 #include "appComponent.hpp"
 #include "controller/loginController.hpp"
-//#include "loginHandler.hpp"
+#include "database/base_repository.h"
 
 namespace fs = std::filesystem;
 
@@ -35,13 +38,77 @@ void run(const std::string& working_path)
     server.run();
 }
 
+MYSQL* mysql_connection_setup(database_connection mysql_details)
+{
+     // first of all create a mysql instance and initialize the variables within
+    MYSQL *connection = mysql_init(NULL);
+
+    // connect to the database with the details attached.
+    if (!mysql_real_connect(connection,mysql_details.server.c_str(), mysql_details.username.c_str(), mysql_details.password.c_str(), mysql_details.database.c_str(), 0, NULL, 0)) {
+      printf("Conection error : %s\n", mysql_error(connection));
+      exit(1);
+    }
+    return connection;
+}
+
+MYSQL_RES* mysql_perform_query(MYSQL *connection, char *sql_query)
+{
+   // send the query to the database
+   if (mysql_query(connection, sql_query))
+   {
+      printf("MySQL query error : %s\n", mysql_error(connection));
+      exit(1);
+   }
+
+   return mysql_use_result(connection);
+}
+
+void test_database()
+{
+    database_connection mysqlD;
+    mysqlD.server = "";  // where the mysql database is
+    mysqlD.username = "";		// the root user of mysql
+    mysqlD.password = ""; // the password of the root user in mysql
+    mysqlD.database = "";	// the databse to pick
+
+    base_repository base;
+    auto conn = base.setup_mysql_connection(mysqlD);
+
+    // assign the results return to the MYSQL_RES pointer
+    const std::string query = "SELECT *, NULL FROM Song";
+    auto res = base.perform_mysql_query(conn, query);
+    auto num_of_fields = mysql_num_fields(res);
+
+    printf("MySQL Tables in mysql database:\n");
+    auto row_count = 1;
+    
+    for (MYSQL_ROW row = NULL; (row = mysql_fetch_row(res)) != NULL;) {
+        std::cout << " row " << row_count << std::endl;
+        for (auto i = 0; i != num_of_fields; ++i) {
+            auto val = row[i];
+
+            if ( val == NULL) {
+                std::cout << "found null value " << std::endl;
+                continue;
+            }
+            std::cout << val << " ";
+        }
+        std::cout << std::endl;
+    }
+
+    /* clean up the database result set */
+    mysql_free_result(res);
+    /* clean up the database link */
+    mysql_close(conn);
+}
+
 
 int main(int argc, char **argv)
 {
     oatpp::base::Environment::init();
     std::string working_path = argv[0];
-    //std::cout << fs::canonical(fs::path(working_path.c_str())).parent_path().string() << std::endl;
 
+    test_database();
     run(working_path);
 
     oatpp::base::Environment::destroy();