a bug ??? about lua-resty-mysql HOT 6 CLOSED

@heyuanlong Will you provide a minimal and self-contained code example that can reproduce this?

from lua-resty-mysql.

我的代码
if mysqlConn then local res, err, errno, sqlstate = mysqlConn:read_result() while err == "again" do res, err, errno, sqlstate = mysqlConn:read_result() end local ok, err = mysqlConn:set_keepalive(10000, 100) if not ok then mysqlConn:close() ok = false db_type = db_type + mysql_type err = "MySQL.Error ( "..(err or "null").." ) " end end
报的错误：
2016/04/29 16:57:30 [error] 17843#0: *46412 lua entry thread aborted: runtime error: /data/sns.kobox.tv/lib/sns_common/resty/mysql.lua:794: attempt to concatenate field 'state' (a nil value)
stack traceback:
coroutine 0:
/data/sns.kobox.tv/lib/sns_common/resty/mysql.lua: in function 'read_result'
/data/matchvs.com/lib/user/connection.lua:72: in function 'releaseConn'

from lua-resty-mysql.

if mysqlConn then
local res, err, errno, sqlstate = mysqlConn:read_result()
while err == "again" do
res, err, errno, sqlstate = mysqlConn:read_result()
end
local ok, err = mysqlConn:set_keepalive(10000, 100)
if not ok then
mysqlConn:close()
ok = false
db_type = db_type + mysql_type
err = "MySQL.Error ( "..(err or "null").." ) "
end
end

from lua-resty-mysql.

local function read_result(self)
              if self.state ~= STATE_COMMAND_SENT then
        return nil, "cannot read result in the current context: " .. (self.state or "nil")--增加判断吧
    end

from lua-resty-mysql.

@heyuanlong Please do not use Chinese here. Thank you.

Regarding the issue, yes, we should add the or "" part there. Patches welcome and pull requests welcome :)

from lua-resty-mysql.

Committed a fix to git master. Thanks for the report.

from lua-resty-mysql.