contest steps

1, How can I show in my iframe a jpg or an html page with an introduction that will redirect to the quiz after the like button on fb.

In the Page Tab/Canvas configuration area of JFBConnect, you can set a "Reveal Page Id". That is the ID of a Joomla article that you want loaded into your Page Tab area whenever a user is viewing your page that hasn't yet Like'd it. So, to setup the Like-gate, you just need to create the article telling the user why to Like your page (your quiz) and then add that ID to the configuration area.

After that, the Like-gate article will show. After a user clicks Like, they will be redirected to your quiz.

2. How can I be sure that a fb user will not run the quiz for a second time

That would be up to your quiz software. JFBConnect doesn't have a method to create quizzes or validate who has (or hasn't) taken one.

I hope that helps get you started!
Alex

Glad to hear it put you on the right track. Should you need anything else or when you get it working, just let us know. We'd love to hear any feedback you may have on the process or suggestions for improvements in the future.

Thanks, and good luck,
Alex

Fantastic news! The white page is actually a bug in our current release. Under specific circumstances, JFBConnect can have a PHP error when a notification is received. If you'd prefer to leave user's in your Canvas area (instead of using the 'breakout' feature), just let me know. I can gladly provide the line of code to fix. The change will also be in our next release, so you won't have to worry about it going forward.

As always, should you need anything else or have any suggestions or feedback, just let me know.

Finally, if you haven't already, please consider leaving a rating and review for JFBConnect, or our support, on the Joomla Extension Directory. It certainly isn't required, but is very appreciated:
extensions.joomla.org/extensions/social-...ook-integration/7215

Thanks,
Alex

Sorry for the delayed response. The issue you mention above could be from the same error. The best way to know is to simply implement it and test.

To make the change, please edit the /components/com_jfbconnect/models/notification.php . Around line 90, you should see:Please update that to:There's a few minor changes in there:
* A single quote ' after both equals signs
* A closing parenthesis, period, double-quote, single-quote, double quote at the end: ) . "'"

The best is to simply copy the line above into your file, but if you can't, hopefully the instructions call out the differences.

Let me know how that goes, and best of luck!
Alex