added cqlVersion check to mitigate cryptic 'cannot parse as hex bytes…

…' errors
simplereach · Jun 18, 2013 · 4ec3a8e · 4ec3a8e
1 parent 9d13345
commit 4ec3a8e
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/lib/connection.js b/lib/connection.js
@@ -422,6 +422,13 @@ Connection.prototype.cql = function(cmd, args, options, callback){
     callback = NOOP;
   }
 
+  //verify that cqlVersion was set to prevent cryptic "cannot parse as hex bytes" errors
+  if (!this.cqlVersion) return callback(new Error("'cqlVersion' is not set; " +
+      "you have to set it explicitly as part of options when creating the " +
+      "connection pool (for example):" +
+      "var pool = new helenus.ConnectionPool({hosts: [\"localhost:9160\"]," +
+      "cqlVersion: \"3.0.0\"});"));
+
   var cql, escaped = [], self = this;
 
   if(args){