Imbus/MovieBookingSystem
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Fixes for seat amount

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Imbus 2024-02-09 06:17:21 +01:00
parent 87cb244f71
commit ebc6ec7896
3 changed files with 43 additions and 23 deletions
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53
src/main/java/datamodel/Database.java
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@ -99,32 +99,39 @@ public class Database {
}
// Gets the Show object with the given title and date
public Show getShowData(String mTitle, String mDate) {
Integer mFreeSeats = 42;
String mVenue = "Kino 2";
public Show getShowData(String movie, String date) {
if (!isConnected()) {
System.err.println("getShowData: no connection to database");
return null;
}
if(!isConnected()) {
System.err.println("getShowData: no connection to database");
return null;
try {
// Using prepared statements here to avoid injection, but this is never done anywhere else in this file
String query = "SELECT m.name AS movie_title, s.show_date, t.name AS theater_name, t.total_seats - COUNT(r.reservation_id) AS free_seats " +
"FROM Showings s " +
"JOIN Theaters t ON s.theater_id = t.theater_id " +
"JOIN Movies m ON s.movie_id = m.movie_id " +
"LEFT JOIN Reservations r ON s.showing_id = r.showing_id " +
"WHERE m.name = ? AND s.show_date = ? " +
"GROUP BY s.show_date, t.theater_id";
PreparedStatement pstmt = conn.prepareStatement(query);
pstmt.setString(1, movie);
pstmt.setString(2, date);
ResultSet rs = pstmt.executeQuery();
if (rs.next()) {
String title = rs.getString("movie_title");
String showDate = rs.getString("show_date");
String venue = rs.getString("theater_name");
int freeSeats = rs.getInt("free_seats");
return new Show(title, showDate, venue, freeSeats);
}
} catch (SQLException e) {
e.printStackTrace();
}
return null;
}
try {
Statement stmt = conn.createStatement();
// ResultSet rs = stmt.executeQuery("SELECT * FROM Showings WHERE title = '" + mTitle + "' AND date = '" + mDate + "'");
ResultSet rs = stmt.executeQuery("SELECT *, Theaters.name AS theater_name FROM Showings JOIN Movies ON Showings.movie_id = Movies.movie_id JOIN Theaters ON Showings.theater_id = Theaters.theater_id");
if (rs.next()) {
mFreeSeats = rs.getInt("total_seats");
mVenue = rs.getString("theater_name");
} else {
System.err.println("getShowData: no show found");
return null;
}
} catch (SQLException e) {
e.printStackTrace();
}
return new Show(mTitle, mDate, mVenue, mFreeSeats);
}
public ArrayList<Show> getAllShows() {
ArrayList<Show> shows = new ArrayList<Show>();

11
src/main/java/gui/BookingTab.java
View file

@ -69,7 +69,18 @@ public class BookingTab {
String movie = moviesList.getSelectionModel().getSelectedItem();
String date = datesList.getSelectionModel().getSelectedItem();
String user = CurrentUser.instance().getCurrentUserId();
if(movie==null || date==null || user.isEmpty()) {
report("You must select a movie and a date, and be logged in!");
return;
}
if(crtShow.getSeats() <= 0) {
report("No more free seats for this show!");
return;
}
Reservation r = db.addReservation(user, movie, date);
fillShow(movie, date);
/* --- TODO: should attempt to book a ticket via the database --- */
/* --- do not forget to report booking number! --- */
/* --- update the displayed details (free seats) --- */

2
src/main/resources/migration.sql
View file

@ -42,6 +42,7 @@ CREATE TABLE IF NOT EXISTS Reservations (
INSERT INTO Theaters (name, total_seats) VALUES ('Theater 1', 100);
INSERT INTO Theaters (name, total_seats) VALUES ('Theater 2', 150);
INSERT INTO Theaters (name, total_seats) VALUES ('Theater 3', 2);
INSERT INTO Movies (name) VALUES ('Movie 1');
INSERT INTO Movies (name) VALUES ('Movie 2');
@ -56,6 +57,7 @@ INSERT INTO Showings (movie_id, theater_id, show_date) VALUES (2, 1, '2024-02-24
INSERT INTO Showings (movie_id, theater_id, show_date) VALUES (3, 1, '2024-08-12');
INSERT INTO Showings (movie_id, theater_id, show_date) VALUES (1, 2, '2024-03-04');
INSERT INTO Showings (movie_id, theater_id, show_date) VALUES (2, 2, '2024-01-10');
INSERT INTO Showings (movie_id, theater_id, show_date) VALUES (2, 3, '2025-01-10');
INSERT INTO Reservations (user_id, showing_id) VALUES (1, 1);
INSERT INTO Reservations (user_id, showing_id) VALUES (2, 2);