There are three main ways to customise the fields in WP Job Manager;

  1. For simple text changes, using a localisation file or a plugin such as the Say What Plugin. See Translating WP Job Manager for more information.
  2. Use a 3rd party plugin such as https://plugins.smyl.es/wp-job-manager-field-editor/ which has a UI for field editing.
  3. Use the WordPress hooks (filters) which are explained below.

WP Job Manager’s approach to allowing customisation of it’s forms is to use filters. In WordPress, filters essentially allow you to ‘filter’ data through your own custom php functions which return a different ‘filtered’ result. Any custom code can go in your theme functions.php file.

Editing fields on the frontend

Editing job submission fields is possible via the submit_job_form_fields filter. Adding some code will allow you to edit various fields, or add new ones.

See the below example which demonstrates how to change a field’s label:

// Add your own function to filter the fields
add_filter( 'submit_job_form_fields', 'custom_submit_job_form_fields' );

// This is your function which takes the fields, modifies them, and returns them
// You can see the fields which can be changed here: https://github.com/mikejolley/WP-Job-Manager/blob/master/includes/forms/class-wp-job-manager-form-submit-job.php
function custom_submit_job_form_fields( $fields ) {

// Here we target one of the job fields (job_title) and change it's label
 $fields['job']['job_title']['label'] = "Custom Label";

// And return the modified fields
 return $fields;
}

View the full list of core fields in this file: https://github.com/mikejolley/WP-Job-Manager/blob/master/includes/forms/class-wp-job-manager-form-submit-job.php

Editing fields in admin

Fields in admin are of similar structure and can be edited using the ‘job_manager_job_listing_data_fields’ filter. Each field takes a label, placeholder, type and description arguments.

See the below example which demonstrates how to change a field’s placeholder:
 // Add your own function to filter the fields
 add_filter( 'job_manager_job_listing_data_fields', 'custom_job_manager_job_listing_data_fields' );

// This is your function which takes the fields, modifies them, and returns them
 // You can see the fields which can be changed here: https://github.com/mikejolley/WP-Job-Manager/blob/master/includes/admin/class-wp-job-manager-writepanels.php
 function custom_job_manager_job_listing_data_fields( $fields ) {

// Here we target one of the job fields (location) and change it's placeholder
 $fields['_job_location']['placeholder'] = "Custom placeholder";

// And return the modified fields
 return $fields;
 }

View the full list of core fields in this file: https://github.com/mikejolley/WP-Job-Manager/blob/master/includes/admin/class-wp-job-manager-writepanels.php