can insert sessions with no comments

server.cpp

@@ -36,18 +36,35 @@ int main()
 		crow::json::wvalue status;
 		auto request_body = crow::json::load(req.body);
 
-		prep_stmt = con->prepareStatement("INSERT INTO practice_sessions (description, seconds, comments, practice_category_id) VALUES (?, ?, ?, ?)");
-
-		string description = request_body["description"].s();
-		int seconds = request_body["seconds"].i();
-		string comments = request_body["comments"].s();
-		int practice_category_id = request_body["practice_category_id"].i();
-
-		prep_stmt->setString(1, description);
-		prep_stmt->setInt(2, seconds);
-		prep_stmt->setString(3, comments);
-		prep_stmt->setInt(4, practice_category_id);
-		prep_stmt->execute();
+		if(request_body.has("comments")){
+
+			prep_stmt = con->prepareStatement("INSERT INTO practice_sessions (description, seconds, comments, practice_category_id) VALUES (?, ?, ?, ?)");
+
+			string description = request_body["description"].s();
+			int seconds = request_body["seconds"].i();
+			string comments = request_body["comments"].s();
+			int practice_category_id = request_body["practice_category_id"].i();
+
+			prep_stmt->setString(1, description);
+			prep_stmt->setInt(2, seconds);
+			prep_stmt->setString(3, comments);
+			prep_stmt->setInt(4, practice_category_id);
+			prep_stmt->execute();
+
+		} else {
+
+			prep_stmt = con->prepareStatement("INSERT INTO practice_sessions (description, seconds, practice_category_id) VALUES (?, ?, ?)");
+
+			string description = request_body["description"].s();
+			int seconds = request_body["seconds"].i();
+			int practice_category_id = request_body["practice_category_id"].i();
+
+			prep_stmt->setString(1, description);
+			prep_stmt->setInt(2, seconds);
+			prep_stmt->setInt(3, practice_category_id);
+			prep_stmt->execute();
+
+		}
 
 		status = {{"status", "success"}};
 		return status;