[Help] attempt to compare string with number

[DotFrank]

Hi guys, i have a problem comparing getPlayerMoney() with price, if i dont use tonumber(price) the error is 'attemp to compare string with number' and if i use tonumber(price) then the error is  'attemp to compare nil with number'.  This problem is only comparing, if I do not use the condition server-side gives me the weapon.

function onBuyWeapon()
	local itemSelected= guiGridListGetSelectedItem(list)
	if itemSelected ~= -1 then
		local weaponName = guiGridListGetItemText (list,itemSelected,column_arma)
		local ammo = guiGridListGetItemText(list,itemSelected,column_balas)
		local price = guiGridListGetItemText(list,itemSelected,column_precio)
		if getPlayerMoney() >= price then
			triggerServerEvent("onBuyWeapon",getLocalPlayer(),weaponName,ammo,price)
		end
	end
end

 

[NeXuS™]

Quote

Note: The amount may vary between the server and client, you shouldn't trust the client side value to always be accurate.

I dont think you should check if the player has enough money on client-side.

[DotFrank]

I already used it on server side too, same mistake.

--server-side

if getPlayerMoney(source) >= price then -- attempt to compare string with number. I if use tonumber(price) the error is => attempt to compare nil with number
	giveWeapon(source,weaponID,ammo) -- without the condition it gives me the weapon
end

 

[NeXuS™]

Try debugging the script.

Add

outputChatBox(price)

above the if statement on your server-sided script.

[DotFrank]

it prints me the price

[NeXuS™]

Can you do a screenshot of it? It's maybe non-convertible to number.

Edited April 29, 2017 by NeXuS™

[DotFrank]

its prints but the problem keeps in the condition. 

[NeXuS™]

Try this.

if getPlayerMoney(source) >= tonumber(string.sub(price, 2)) then -- attempt to compare string with number. I if use tonumber(price) the error is => attempt to compare nil with number
	giveWeapon(source,weaponID,ammo) -- without the condition it gives me the weapon
end

 

[DotFrank]

it works, thank you NeXuS!