Merge pull request 'practiced_songs' (#1) from practiced_songs into master

Reviewed-on: #1

server.cpp

@@ -34,10 +34,10 @@ int main()
 		connect();
 		crow::json::wvalue status;
 		auto request_body = crow::json::load(req.body);
-
+		int new_session_id;
 		if(request_body.has("comments")){
 
-			prep_stmt = con->prepareStatement("INSERT INTO practice_sessions (description, seconds, comments, practice_category_id) VALUES (?, ?, ?, ?)");
+			prep_stmt = con->prepareStatement("INSERT INTO practice_sessions (description, seconds, comments, practice_category_id) VALUES (?, ?, ?, ?) RETURNING id");
 
 			string description = request_body["description"].s();
 			int seconds = request_body["seconds"].i();
@@ -48,11 +48,13 @@ int main()
 			prep_stmt->setInt(2, seconds);
 			prep_stmt->setString(3, comments);
 			prep_stmt->setInt(4, practice_category_id);
-			prep_stmt->execute();
+			ResultSet *res = prep_stmt->executeQuery();
+			res->next();
+			new_session_id = res->getInt("id");
 
 		} else {
 
-			prep_stmt = con->prepareStatement("INSERT INTO practice_sessions (description, seconds, practice_category_id) VALUES (?, ?, ?)");
+			prep_stmt = con->prepareStatement("INSERT INTO practice_sessions (description, seconds, practice_category_id) VALUES (?, ?, ?) RETURNING id");
 
 			string description = request_body["description"].s();
 			int seconds = request_body["seconds"].i();
@@ -61,8 +63,19 @@ int main()
 			prep_stmt->setString(1, description);
 			prep_stmt->setInt(2, seconds);
 			prep_stmt->setInt(3, practice_category_id);
-			prep_stmt->execute();
+			ResultSet *res = prep_stmt->executeQuery();
+			res->next();
+			new_session_id = res->getInt("id");
+
+		}
 
+		if(request_body.has("songs")){
+			for(const auto& song : request_body["songs"]){
+				prep_stmt = con->prepareStatement("INSERT INTO songs_practiced (practice_session_id, song_id) VALUES (?, ?)");
+				prep_stmt->setInt(1, new_session_id);
+				prep_stmt->setInt(2, int(song["id"]));
+				prep_stmt->execute();
+			}
 		}
 
 		status = {{"status", "success"}};
@@ -166,32 +179,62 @@ int main()
 		connect();
 		crow::json::wvalue entries;
 
-		ResultSet *res = stmt->executeQuery("call show_category("+to_string(category_id)+");");
+		prep_stmt = con->prepareStatement("SELECT practice_sessions.id, practice_sessions.description, seconds, songs.id AS song_id, songs.title, comments, created_at, practice_categories.name AS category, instruments.name AS instrument "
+				"FROM practice_sessions JOIN practice_categories ON practice_category_id = practice_categories.id "
+				"JOIN instruments ON instrument_id = instruments.id "
+				"LEFT JOIN songs_practiced ON practice_sessions.id = songs_practiced.practice_session_id "
+				"LEFT JOIN songs ON songs_practiced.song_id = songs.id WHERE practice_category_id = ? ORDER BY practice_sessions.id DESC;");
+		prep_stmt->setInt(1, category_id);
+		ResultSet *res = prep_stmt->executeQuery();
+
+		int i = -1;
+		int previous_session_id = 0;
+		int current_song_index;
+		while (res->next()) {
 
-		int i = 0;
-		res->afterLast();
-		while (res->previous()) {
 			int id = res->getInt("id");
 			string description = res->getString("description");
 			int seconds = res->getInt("seconds");
 			string comments = res->getString("comments");
 			string created_at = res->getString("created_at");
-			int category_id = res->getInt("category_id");
 			string category = res->getString("category");
 			string instrument = res->getString("instrument");
-			entries[i] = {
+			int song_id = res->getInt("song_id");
-				{"id", id},
+			string song_title = res->getString("title");
-				{"description", description},
+
-				{"seconds", seconds},
+			if(id != previous_session_id){
-				{"comments", comments},
+				i++;
-				{"created_at", created_at},
+
-				{"category_id", category_id},
+				previous_session_id = id;
-				{"category", category},
+				current_song_index = 0;
-				{"instrument", instrument}
+				crow::json::wvalue songs = crow::json::wvalue::list();
-			};
+				if(song_id != 0){
-			i++;
+					songs[current_song_index] = {
-		}
+						{"id", song_id},
+						{"title", song_title}
+					};
+				}
+
+				entries[i] = {
+					{"id", id},
+					{"description", description},
+					{"seconds", seconds},
+					{"comments", comments},
+					{"created_at", created_at},
+					{"category", category},
+					{"instrument", instrument},
+					{"songs", songs}
+				};
+				current_song_index++;
+			} else {
+				entries[i]["songs"][current_song_index] = {
+						{"id", song_id},
+						{"title", song_title}
+				};
+				current_song_index++;
+			}
 
+		}
 		delete res;
 		return entries;
 	});