Hello guys!
I have a problem with converting dbQuery result. I am trying to ask the database if a colum true or false. I can extract the value in a table with dbPoll, and it frees up the Query as well, but when I try to convert the table value to boolean value it always return nil. I have tryed dbExec, but it gives back true as long as the connection is alive. My main goal is to get a boolean value in a variable. Do you know the solution?
This code gives me a table
local connection = exports.dm_mysql:getConnection()
function onJoin()
local serial = getPlayerSerial(source)
local ipadress = getPlayerIP(source)
local serialcheck = dbQuery(connection, "SELECT banned FROM accounts WHERE serial = ?", serial)
local result = dbPoll(serialcheck, -1)
outputChatBox(tostring(result), source)
end
addEventHandler("onPlayerJoin", root, onJoin)
[2021-07-26 15:22:32] [Output] : table: 04470BF8
When I try to extract tha value from the table with the default script, that is in the dbPoll description on MTA:wiki, it gives me nil, doesn't metter if the database store value of 1 ore 0.
function onJoin()
local serial = getPlayerSerial(source)
local ipadress = getPlayerIP(source)
local serialcheck = dbQuery(connection, "SELECT banned FROM accounts WHERE serial = ?", serial)
local result = dbPoll(serialcheck, -1)
outputChatBox(tostring(result), source)
if result then
for _, row in ipairs ( result ) do
-- by using a second loop (use it if you want to get the values of all columns the query selected):
for column, value in pairs ( row ) do
-- column = the mysql column of the table in the query
-- value = the value of that column in this certain row
end
-- or without a second loop (use it if you want to handle every value in a special way):
outputChatBox (tostring(row["column"]), source) -- it will output the value of the column "column" in this certain row
end
end
end
addEventHandler("onPlayerJoin", root, onJoin)
[2021-07-26 15:35:01] [Output] : nil
I had to convert the output to string, because I got warning for bad argument, that it gives me back nil value.
[2021-07-26 15:34:21] WARNING: dm_accounts\sourceS.lua:21: Bad argument @ 'outputChatBox' [Expected string at argument 1, got nil]