Get parties a track was released at from the track.

[demoscenemusic.git] / src / main / java / net / pterodactylus / demoscenemusic / data / DataManager.java

diff --git a/src/main/java/net/pterodactylus/demoscenemusic/data/DataManager.java b/src/main/java/net/pterodactylus/demoscenemusic/data/DataManager.java
index bcfbb18..ea040bd 100644 (file)
--- a/src/main/java/net/pterodactylus/demoscenemusic/data/DataManager.java
+++ b/src/main/java/net/pterodactylus/demoscenemusic/data/DataManager.java
@@ -618,6 +618,23 @@ public class DataManager {
        }
 
        /**
+        * Returns all parties that the track with the given ID was released at.
+        *
+        * @param trackId
+        *            The ID of the track
+        * @return All parties the track was released at
+        * @throws DatabaseException
+        *             if a database error occurs
+        */
+       public Collection<Party> getPartiesByTrackId(String trackId) throws DatabaseException {
+               Query query = new Query(Type.SELECT, "PARTIES");
+               query.addField(new Field("PARTIES.*"));
+               query.addJoin(new Join(JoinType.INNER, "PARTY_TRACKS", new Field("PARTY_TRACKS.PARTY"), new Field("PARTIES.ID")));
+               query.addWhereClause(new ValueFieldWhereClause(new ValueField("PARTY_TRACKS.TRACK", new StringParameter(trackId))));
+               return loadPartyProperties(database.getMultiple(query, partyCreator));
+       }
+
+       /**
         * Returns the party with the given ID.
         *
         * @param partyId
@@ -1081,6 +1098,21 @@ public class DataManager {
                        return super.getRelatedTracks();
                }
 
+               /**
+                * {@inheritDoc}
+                */
+               @Override
+               public Collection<Party> getParties() {
+                       if (!hasValue("parties")) {
+                               try {
+                                       getValue("parties", Collection.class).set(getPartiesByTrackId(getId()));
+                               } catch (DatabaseException de1) {
+                                       throw new RuntimeException("Could not load Parties for Track " + getId() + ".", de1);
+                               }
+                       }
+                       return super.getParties();
+               }
+
        }
 
        /**