query down

main.cc

@@ -7,9 +7,15 @@ using namespace std;
 
 int main(int argc, char** const argv){
     SqlConnection conn{};
-    auto resp = conn.Connect("192.168.1.17", "3306", "root", "", "mysql");
+    auto resp = conn.Connect("192.168.1.17", "3306", "root", "", "mobiletek_mmi");
 //    resp.or_else([](auto err_msg){cout<<err_msg<<"\n";});
-    auto table_result = conn.GetTables();
-    ranges::for_each(table_result, [](auto item){cout<<item<<endl;});
+//    auto table_result = conn.GetTables();
+    auto result = conn.Query("SELECT IMEI_1 FROM R303 WHERE Powertest=1;");
+    ranges::for_each(result.value(), [](auto row){
+        ranges::for_each(row, [](auto item){
+            cout<<item<<", ";
+        });
+        cout<<endl;
+    });
     return 0;
 }

sqlConnection.h

@@ -111,23 +111,31 @@ public:
         return really_result;
     }
     
-    std::expected<std::map<std::string_view, std::vector<std::string_view>>, std::string_view> Query(std::string_view command){
+    std::expected<std::vector<std::vector<std::string_view>>, std::string_view> Query(std::string_view command){
         //Not Implemented;
-        std::map<std::string_view, std::vector<std::string_view>> really_result;
+        std::vector<std::vector<std::string_view>> really_result;
         mysql_query(&mysql_client, command.data());
         if(auto mysql_result = mysql_store_result(&mysql_client); mysql_result != nullptr){
             auto row_length = mysql_fetch_lengths(mysql_result);
             auto field_length = mysql_num_fields(mysql_result);	
+            std::vector<std::string_view> temp;
             while(auto row = mysql_fetch_row(mysql_result)){
+                temp.clear();
                 for(int i=0; i<field_length; i++){
+                    if(row[i] != nullptr){
+                        temp.emplace_back(row[i]);
+                    }else{
+                        temp.emplace_back("");
+                    }
                     
                 }
+                really_result.emplace_back(temp);
             }
             
             mysql_free_result(mysql_result);
         }
         
-        return std::unexpected(get_error_msg());
+        return really_result;
     }
     
     bool Execute(std::string_view command){