post-type-taxonomy-setup.php

<?php
/* Custom Post Type Setup */
function post_type_jobs() {
  $labels = array(
	  'name' => _x('Jobs', 'post type general name', 'agrg'),
	  'singular_name' => _x('Jobs', 'post type singular name', 'agrg'),
	  'add_new' => _x('Add New Job', 'jobs', 'agrg'),
	  'add_new_item' => __('Add New Job', 'agrg'),
	  'edit_item' => __('Edit Job', 'agrg'),
	  'new_item' => __('New Job', 'agrg'),
	  'view_item' => __('View Job', 'agrg'),
	  'search_items' => __('Search Jobs', 'agrg'),
	  'not_found' =>  __('No Jobs found', 'agrg'),
	  'not_found_in_trash' => __('No Jobs found in Trash', 'agrg'), 
	  'parent_item_colon' => ''
  );
  $args = array(
	  'labels' => $labels,
	  'slug' => 'jobs',
	  'public' => true,
	  'publicly_queryable' => true,
	  'show_ui' => true, 
	  'query_var' => true,
	  'capability_type' => 'post',
	  'hierarchical' => true,
	  'menu_position' => null,
	  'menu_icon' => 'dashicons-menu',
	  'has_archive' => true,
	  'supports' => array('title', 'editor', 'author', 'thumbnail', 'excerpt', 'comments', 'page-attributes', 'post-formats' )

  );
  register_post_type( 'jobs', $args );
  flush_rewrite_rules(false);
}
add_action('init', 'post_type_jobs');

function be_register_taxonomies() {
  $taxonomies = array(
	array(
	  'slug'         => 'job-department',
	  'single_name'  => 'Department',
	  'plural_name'  => 'Departments',
	  'post_type'    => 'jobs',
	  'query_var'    => true,
	  'public'       => true,
	),
	array(
	  'slug'         => 'job-type',
	  'single_name'  => 'Type',
	  'plural_name'  => 'Types',
	  'post_type'    => 'jobs',
	  'query_var'    => true,
	  'public'       => true,
	  'hierarchical' => false,
	),
	array(
	  'slug'         => 'job-experience',
	  'single_name'  => 'Min-Experience',
	  'plural_name'  => 'Min-Experiences',
	  'post_type'    => 'jobs',
	  'query_var'    => true,
	  'public'       => true,
	),
  );
  foreach( $taxonomies as $taxonomy ) {
	$labels = array(
	  'name' => $taxonomy['plural_name'],
	  'singular_name' => $taxonomy['single_name'],
	  'search_items' =>  'Search ' . $taxonomy['plural_name'],
	  'all_items' => 'All ' . $taxonomy['plural_name'],
	  'parent_item' => 'Parent ' . $taxonomy['single_name'],
	  'parent_item_colon' => 'Parent ' . $taxonomy['single_name'] . ':',
	  'edit_item' => 'Edit ' . $taxonomy['single_name'],
	  'update_item' => 'Update ' . $taxonomy['single_name'],
	  'add_new_item' => 'Add New ' . $taxonomy['single_name'],
	  'new_item_name' => 'New ' . $taxonomy['single_name'] . ' Name',
	  'menu_name' => $taxonomy['plural_name']
	);

	$rewrite = isset( $taxonomy['rewrite'] ) ? $taxonomy['rewrite'] : array( 'slug' => $taxonomy['slug'] );
	$hierarchical = isset( $taxonomy['hierarchical'] ) ? $taxonomy['hierarchical'] : true;

	register_taxonomy( $taxonomy['slug'], $taxonomy['post_type'], array(
	  'hierarchical' => $hierarchical,
	  'labels' => $labels,
	  'show_ui' => true,
	  'query_var' => true,
	  'rewrite' => $rewrite,
	));
  }

}
add_action( 'init', 'be_register_taxonomies', 0 );
  
function lh_add_rewrite_rules() {
	global $wp_rewrite;
	$rules = array();

	$terms_dept = get_terms( array(
		'taxonomy' => 'job-department',
		'hide_empty' => false,
	) );
	$terms_type = get_terms( array(
		'taxonomy' => 'job-type',
		'hide_empty' => false,
	) );

 	$post_type = 'jobs';

	foreach ( $terms_dept as $term_dept ) {
		//Job Department Archive: https://grafdom.net/projects/sa/testing/jobs/administration
		add_rewrite_rule('jobs/' . $term_dept->slug , 'index.php?post_type=' . $post_type . '&job-department=' . $term_dept->slug, 'top');
		foreach ( $terms_type as $term_type ) {
			//Job Type Archive: https://grafdom.net/projects/sa/testing/jobs/part-time
			add_rewrite_rule('jobs/' . $term_type->slug, 'index.php?post_type=' . $post_type . '&job-type=' . $term_type->slug, 'top');
			//Job Department/Type Archive: https://grafdom.net/projects/sa/testing/jobs/administration/part-time
			add_rewrite_rule('jobs/' . $term_dept->slug . '/' . $term_type->slug, 'index.php?post_type=' . $post_type . '&job-department=' . $term_dept->slug . '&job-type=' . $term_type->slug, 'top');
		}
	}
}
add_action('init', 'lh_add_rewrite_rules');

//Test my rewrite rules
function test_rwr_foot() {
	//https://grafdom.net/projects/sa/testing/wp-admin/tools.php?page=monkeyman-rewrite-analyzer
	global $wp_rewrite;
	echo '<pre>';
	print_r( $wp_rewrite->rules );
	echo '</pre>';
}
add_action( 'wp_footer','test_rwr_foot' );