bugfix: fixed the Lua exception "attempt to concatenate field 'state'…

… (a nil value)". thanks heyuanlong for the report in #36.
openresty · May 19, 2016 · 3f76f7b · 3f76f7b
1 parent 822d2c0
commit 3f76f7b
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/lib/resty/mysql.lua b/lib/resty/mysql.lua
@@ -764,7 +764,8 @@ _M.send_query = send_query
 
 local function read_result(self, est_nrows)
     if self.state ~= STATE_COMMAND_SENT then
-        return nil, "cannot read result in the current context: " .. self.state
+        return nil, "cannot read result in the current context: "
+                    .. (self.state or "nil")
     end
 
     local sock = self.sock