I need a category chooser field in my modules config tab. I already saw a lot of widget tutorials, including this, from Alan Storm, and it is very helpful. But i want something more specific.
I need a widget like the one that is present in Promotions -> Cart Rules
When you open this chooser, the categories are listed and you can choose them with the checkbox. Then, the ID of the selected categories go to the field Category. That's what i want.
- I would like to know where can i find the code about this widget in magento or
- If someone have a solution that do something like the print above.
I already saw some questions about this, like this one, but my solution must be for magento 1.9.x.