Delete track

DELETE to the track's URI to delete the track.

src/config/routes/2.1.json

@@ -109,6 +109,12 @@
         "action": "editTrack",
         "verbs": ["PUT"]
     },
+    {
+        "path": "/tracks(/[\\d]+)/?$",
+        "controller": "TracksController",
+        "action": "deleteTrack",
+        "verbs": ["DELETE"]
+    },
 
     {
         "path": "/users/passwords$",

src/controllers/TracksController.php

@@ -65,11 +65,36 @@ public function editTrack($request, $db)
             throw new Exception(implode(". ", $errors), 400);
         }
 
-
         $track_mapper->editEventTrack($track, $track_id);
 
         $uri = $request->base  . '/' . $request->version . '/tracks/' . $track_id;
         header("Location: $uri", true, 204);
         exit;
     }
+
+    public function deleteTrack($request, $db)
+    {
+        $track_id = $this->getItemId($request);
+
+        $track_mapper = new TrackMapper($db, $request);
+        $tracks = $track_mapper->getTrackById($track_id, true);
+        if (!$tracks) {
+            throw new Exception("Track not found", 404);
+        }
+
+        $event_mapper = new EventMapper($db, $request);
+        $events = $event_mapper->getEventByTrackId($track_id, true, false, false);
+        if (!$events || !$events[0]['ID']) {
+            throw new Exception("Associated event not found", 404);
+        }
+        $event_id = $events[0]['ID'];
+        if (!$event_mapper->thisUserHasAdminOn($event_id)) {
+            throw new Exception('You do not have permission to delete this track', 403);
+        }
+
+        $track_mapper->deleteEventTrack($track_id);
+
+        header("Content-Length: 0", null, 204);
+        exit;
+    }
 }

src/models/TrackMapper.php

@@ -153,4 +153,22 @@ public function editEventTrack($data, $track_id)
 
         return $track_id;
     }
+
+    /**
+     * Delete track and talk associations
+     *
+     * @param  int $track_id
+     */
+    public function deleteEventTrack($track_id)
+    {
+        // delete talk associations
+        $sql = "delete from event_track where ID = :track_id";
+        $stmt = $this->_db->prepare($sql);
+        $stmt->execute(['track_id' => $track_id]);
+
+        // delete track
+        $sql = "delete from talk_track where track_id = :track_id";
+        $stmt = $this->_db->prepare($sql);
+        $stmt->execute(['track_id' => $track_id]);
+    }
 }