neo4j/exec-queries! now executes the queries in a single transaction

src/wanijo/framework/neo4j.clj

@@ -43,7 +43,7 @@
     (qry session params)))
 
 (defn exec-queries! [& tuples]
-  (with-open [session (db/get-session @conn)]
+  (db/with-transaction @conn tx
     (doseq [tuple tuples]
       (let [qry (first tuple)
             params (second tuple)]
@@ -51,7 +51,7 @@
          (str (butiful-query qry)
               "<br>---Params---<br>"
               params))
-        (qry session params)))))
+        (qry tx params)))))
 
 (defn now-str []
   (time-format/unparse