Only add an image if it doesn’t already exist.

[Sone.git] / src / main / java / net / pterodactylus / sone / data / Album.java

diff --git a/src/main/java/net/pterodactylus/sone/data/Album.java b/src/main/java/net/pterodactylus/sone/data/Album.java
index ac7e11d..5d4eeb7 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/data/Album.java
+++ b/src/main/java/net/pterodactylus/sone/data/Album.java
@@ -103,7 +103,7 @@ public class Album implements Fingerprintable {
         * @return This album
         */
        public Album setSone(Sone sone) {
-               Validation.begin().isNull("Current Album Owner", this.sone).isNotNull("New Album Owner", sone).check();
+               Validation.begin().isNotNull("New Album Owner", sone).check();
                this.sone = sone;
                return this;
        }
@@ -159,7 +159,9 @@ public class Album implements Fingerprintable {
        public void addImage(Image image) {
                Validation.begin().isNotNull("Image", image).check().isNotNull("Image Owner", image.getSone()).check().isEqual("Image Owner", image.getSone(), sone).check();
                image.setAlbum(this);
-               images.add(image);
+               if (!images.contains(image)) {
+                       images.add(image);
+               }
        }
 
        /**