Adobe Air/Flex + SQLite database problem - apache-flex

Question

I'm still a newbie to Adobe Air/Flex, and still fairly new with SQL.
I've downloaded this (http://coenraets.org/blog/2008/11/using-the-sqlite-database-access-api-in-air…-part-1/) code and have been looking over it and I'm trying to implement the same idea.
I think it's just something stupid. I'm using Flex Builder. I made a new desktop application project, didn't import anything.
I added a DataGrid object and bound it to an ArrayCollection:
I'm trying to make it so when the program initializes it will load data from a database if it exists, otherwise it'll create a new one.
The problem is, when the application runs, the datagrid is empty. No column headers, no data, nothing. I've tried changing a whole bunch of stuff, I've used the debugger to make sure all the functions are being called like they're supposed to. I don't know what I'm doing wrong. I've compared my code to the before mentioned code, I've looked for tutorials on Google. Anyone know what I'm doing wrong?
<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="672" height="446"
applicationComplete="onFormLoaded()"
title="iRecipes">
<mx:Script>
<![CDATA[
import mx.collections.ArrayCollection;
private var sqlConnection:SQLConnection;
[Bindable] private var recipeList:ArrayCollection;
private function onFormLoaded():void
{
sqlConnection = new SQLConnection();
openDataBase();
}
private function openDataBase():void
{
var file:File = File.userDirectory.resolvePath("recipes.db");
sqlConnection.open(file, SQLMode.CREATE);
if(!file.exists)
{
createDatabase();
}
populateRecipeList()
}
private function createDatabase():void
{
var statement:SQLStatement = new SQLStatement();
statement.sqlConnection = sqlConnection;
statement.text = "CREATE TABLE Recipes (recipeId INTEGER PRIMARY KEY AUTOINCREMENT, recipeName TEXT, authorName TEXT)";
statement.execute();
statement.text = "INSERT INTO Recipes (recipeName, authorName) VALUES (:recipeName, :authorName)";
statement.parameters[":recipeName"] = "Soup";
statement.parameters[":authorName"] = "Joel Johnson";
statement.execute();
statement.parameters[":recipeName"] = "Garbage";
statement.parameters[":authorName"] = "Bob Vila";
statement.execute();
}
private function populateRecipeList():void
{
var statement:SQLStatement = new SQLStatement();
statement.sqlConnection = sqlConnection;
statement.text = "SELECT * FROM Recipes";
statement.execute();
recipeList = new ArrayCollection(statement.getResult().data);
}
]]>
</mx:Script>
<mx:DataGrid dataProvider="{recipeList}">
</mx:DataGrid>
</mx:WindowedApplication>

Answer 1

I just tried this out using your code. I made a change and removed the condition as I was getting errors about the table not existing.
//if(!file.exists)
//{
createDatabase();
//}
This got the datagrid showing the correct info. I think that there is something wrong with the way you are initialising the database file. I'm having a look into it at the moment.
Try using
sqlConnection.open(file, SQLMode.CREATE);
instead, for opening the database.

Answer 2

Thanks Feet. With your suggestion, I believe I have figured it out. I changed the if statement to this:
if(!file.exists)
{
sqlConnection.open(file, SQLMode.CREATE);
createDatabase();
}
else
{
sqlConnection.open(file, SQLMode.UPDATE);
}
And it works great. Thanks for your help.