Route get groups by chapter

src/dev/peerat/backend/repository/DatabaseQuery.java

@@ -21,6 +21,7 @@ public enum DatabaseQuery {
 
 	// GROUPS
 	ALL_GROUPS("SELECT * FROM groups"),
+	ALL_GROUPS_BY_CHAPTER("SELECT * FROM groups WHERE fk_chapter = ?"),
 	GET_GROUP_FOR_PLAYER("SELECT g.* FROM groups g JOIN containsGroups cg ON cg.fk_group = g.id_group WHERE cg.fk_player = ? AND g.fk_chapter = ?"), // AND g.fk_puzzle = ?
 	GET_GROUP_ID_BY_DATA("SELECT id_group FROM groups WHERE name = ? AND (fk_chapter = ?)"), // OR fk_puzzle = ?
 	INSERT_GROUP("INSERT INTO groups (name, fk_chapter) VALUES (?,?)"),

src/dev/peerat/backend/repository/DatabaseRepository.java

@@ -472,6 +472,22 @@ public class DatabaseRepository {
 		return null;
 	}
 	
+	public List<Group> getAllGroupsByChapter(int chapter){
+		try {
+			ensureConnection();
+			List<Group> list = new ArrayList<>();
+			PreparedStatement stmt = DatabaseQuery.ALL_GROUPS_BY_CHAPTER.prepare(this.con);
+			stmt.setInt(1, chapter);
+			ResultSet groupResult = stmt.executeQuery();
+			while (groupResult.next())
+				list.add(makeGroup(groupResult));
+			return list;
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+		return null;
+	}
+
 	/**
 	 * Check if a pseudo is available
 	 *

src/dev/peerat/backend/routes/groups/GroupList.java

@@ -22,11 +22,20 @@ public class GroupList implements Response {
 	
 	@RouteDoc(path = "/groups", responseCode = 200, responseDescription = "JSON avec la liste des groups")
 
-	@Route(path = "^\\/groups$", needLogin = true)
+	@Route(path = "^\\/groups\\/?(\\d+)?$", needLogin = true)
 	public void exec(Matcher matcher, Context context, HttpReader reader, HttpWriter writer) throws Exception{
-		context.response(200);
+		String param = matcher.group(1);
+		if(param == null){
 			JsonArray result = new JsonArray();
 			for(Group group : this.repo.getAllGroups()) result.add(group.toJson());
+			context.response(200);
+			writer.write(result.toString());
+			return;
+		}
+		int chapter = Integer.parseInt(param);
+		JsonArray result = new JsonArray();
+		for(Group group : this.repo.getAllGroupsByChapter(chapter)) result.add(group.toJson());
+		context.response(200);
 		writer.write(result.toString());
 	}