corona sdks - Why ain't my database updating count? - lua

Question

I seem to be having an issue with my database in corona sdk. I want to store the play counts every time a player plays the game. my project doesn't have a gamescene and plays only through menu.lua. I have set up a highscore database (which is separate from the other one but exactly the same) and it works fine and updates/loads data fine. My play count data base however doesn't work.
At first the play count increases by 1 when the game returns to menu again once its removed. But tries after that doesn't increase the value, it's like it has reset.
Globals.lua
M.plays = 0
--------------------------
local function setupDatabase2()
local dbPath = system.pathForFile("appInfo.db3", system.DocumentsDirectory)
local db = sqlite3.open( dbPath )
local tablesetup1 = [[
CREATE TABLE played (id INTEGER PRIMARY KEY, plays);
INSERT INTO played VALUES (NULL, '0');
]]
db:exec( tablesetup1 ) --Create it now.
db:close() --Then close the database
end
setupDatabase2()
M.loadAppInfo = function()
local dbPath = system.pathForFile("appInfo.db3", system.DocumentsDirectory)
local db = sqlite3.open(dbPath)
for row in db:nrows("SELECT * FROM played WHERE id = 1") do
M.plays = tonumber(row.plays)
end
db:close()
end
M.saveAppInfo = function()
local dbPath = system.pathForFile("appInfo.db3", system.DocumentsDirectory)
local db = sqlite3.open(dbPath)
local update = "UPDATE played SET plays='" .. M.plays .."' WHERE id=1"
db:exec(update)
db:close()
end
return M
menu.lua
local utils = require("helpers.globals")
local play = 0
----------------------------------------
function scene:createScene( event )
local group = self.view
utils.loadHighscoreInfo() -- Separate db which is working fine
utils.loadAppInfo()
function beginGame( event )
timerSrc = timer.performWithDelay(400, createBlock, -1)
Runtime:addEventListener("enterFrame", gameLoop)
play = play +1
utils.plays = play
utils.saveAppInfo()
end

Answer 1

Your SQL statement is doing all of that. Your current sql creates a table everytime it is called. Try this:
local tablesetup1 = [[
CREATE TABLE IF NOT EXISTS played (id INTEGER PRIMARY KEY, plays);
INSERT INTO played VALUES (NULL, '0');]]
I guess that statement is pretty much self explanatory :)