Displaying updated date for entry

Question

I want to display the date an entry has been updated if it is later than the post date. So I've tried this:

   {% if entry.dateUpdated >= entry.post %}
      Updated on {{ entry.dateUpdated.format('j M y') }}
   {% endif %}

But the date updated displays even if it is earlier. Is this because the date is not strictly a value as such?

Answer 1

Date fields in Craft are returned as DateTime objects, so you need to convert these to a string to be able to compare them.

The best way of doing this is to use the yyyy-mm-dd format as this makes it is easy to compare dates.

So your comparison would become:

   {% if (entry.dateUpdated|date('Y-m-d')) >= (entry.postDate|date('Y-m-d')) %}
      Updated on {{ entry.dateUpdated.format('j M y') }}
   {% endif %}

Answer 2

You're not checking against a valid field there - try using entry.postDate instead of entry.post