I'm currently trying the following (simplified objects):
I have a bunch of "objects", which are cities. Each city has a relating country (even though I'm not sure how to implement this relation, yet), so for example I have the following cities:
Stuttgart - Germany Berlin - Germany Dresden - Germany Paris - France Marseille - France Lyon - France New York - USA Chicago - USA LA - USA Miami - USA Peking - China Shanghai - China Hongkong - China
I think you get what I mean.
Additionally, I have some checkboxes, including the country, so in the case of the list provided, I would 4 checkboxes, one for Germany, one for France, one of USA and one for China.
When ticking one of this checkboxes, the relating cities should appear underneath, when ticking two of the checkboxes, the cities of both checked countries should appear, and so on.
Actually, I have no idea how to get this started. In a normal web application, I would just create a database table with 3 columns (ID, City, Country) and then in my frontend just react on the
checkbox.change, send AJAX to a php file, which gets the requested objects from database (something like
select * from tbl_cities where country=germany) and just
Is something similar possible in Wordpress? Are there plugins for things like that, or how could I get this started?