Hello, I have a custom taxonomy and add entries to this taxonomy programmatically with data I get from an API. The custom taxonomy has some acf fields I also fill in this process.
This API doesn’t have data on some fields in some entries. So with data from another API I want to iterate over the taxonomy again and only fill the empty fields.
When I just do the same import process with the second API, update_field will update the empty fields but also change the data of the fields that already have data from the first API.
So, I want to check If a field is empty before update_field. Is there a function which checks if a field is empty? I couldn’t find a solution yet. I tried with
if(get_field($term_id) === '') {
update_field($key, $value, $term_id);
}
But it is not working…
Does anyone have a suggestion?
BR
Maybe I have to also state, that I am trying to do this inside a loop (foreach)
Must of the time the field vale will be false or NULL if it is empty. You need to check for empty
if(empty(get_field($term_id)) {
this might also work
if (!get_field($term_id)) {
However, this could be a problem if the actual value of the field is something that evaluates to empty but is a valid value, for example an empty string, 0, false, etc. So depending on the type of field you might need to check for different things.
