Wednesday, July 15, 2015

Another new APEX-based public website goes live

Another APEX public website I worked on with Northgate Public Services has just gone live:

This is a website to handle appeals against parking fines and other traffic/environmental fines issues by London local authorities.

It is built on APEX 4.2 using a bespoke theme that uses the Bootstrap framework.  A responsive design has been used so that the site works as well on a mobile phone as on a desktop.

Rumours that appeals against any parking tickets with my car's registration number on them are automatically approved by the system are completely unfounded.

Monday, February 02, 2015

Why won't my APEX submit buttons submit?

I hit a weird jQuery issue today that took a ridiculous amount of time to solve.  It is easy to demonstrate:

  1. Create a simple APEX page with an HTML region
  2. Create 2 buttons that submit the page with a request e.g. SUBMIT and CANCEL
  3. Run the page
So far, it works - if you press either button you can see that the page is being submitted.  

Now edit the buttons and assign them static IDs of "submit" and "cancel" respectively.  Run the page again - the buttons no longer work!  If you check for Javascript errors you will see that you are getting "Uncaught TypeError: object is not a function" (in Chrome) or similar.

Apparently this is a known issue with jQuery (see 
Forms and their child elements should not use input names or ids that conflict with properties of a form, such as submit, length, or method. Name conflicts can cause confusing failures. For a complete list of rules and to check your markup for these problems, see DOMLint.