fix links getting the same uuid in batch operations

src/wanijo/instance/domain.clj

@@ -130,17 +130,23 @@
   "MATCH (i:instance {uuid:{from}}),
          (u:user {uuid:{by}}),
          (t:instance)
-   WHERE t.uuid IN {to}
+   WHERE t.uuid = {target}
    CREATE (l:link {uuid:{uuid}})-[:created_by]->(u)
       SET l.created_at = {created_at},
           l.name = {name}
    CREATE (i)<-[:link_from]-(l)-[:link_to]->(t)")
 
 (defn create-link! [link]
-  (neo4j/exec-query! create-link
-                     (assoc link
-                            :uuid (neo4j/uuid)
-                            :created_at (neo4j/now-str))))
+  (let [tuples (map (fn [target-uuid]
+                      [create-link
+                       {:from (:from link)
+                        :by (:by link)
+                        :target target-uuid
+                        :uuid (neo4j/uuid)
+                        :created_at (neo4j/now-str)
+                        :name (:name link)}])
+                    (:to link))]
+    (apply neo4j/exec-queries! tuples)))
 
 (neo4j/defquery outgoing-links
   "MATCH (i:instance {uuid:{uuid}}),