Forked from hameedullah/customtaxonomydropdown.php
Created
February 15, 2012 17:28
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Custom Taxonomy drop downs for parents and child
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<?php | |
/* | |
Plugin Name: Custom Taxonomy DropDown | |
Author: Hameedullah Khan | |
Aurhot URI: http://hameedullah.com | |
*/ | |
// change this to your taxonomy | |
$brand_taxonomy = 'category'; | |
$taxonomy_name = 'Brands'; | |
/* registering taxonomy */ | |
/* disabled assuming you already have regsitered taxonomy */ | |
/* | |
add_action('init', 'my_taxonomy'); | |
function my_taxonomy() { | |
global $brand_taxonomy, $taxonomy_name; | |
register_taxonomy($brand_taxonomy,array('post'),array('labels'=>array('name'=>$taxonomy_name),'public'=>true,'hierarchical'=>true)); | |
}*/ | |
add_action('add_meta_boxes', 'my_custom_metabox'); | |
function my_custom_metabox() { | |
add_meta_box('custom-taxonomy-dropdown','Brands','taxonomy_dropdowns_box','post','side','high'); | |
} | |
function taxonomy_dropdowns_box( $post ) { | |
global $brand_taxonomy, $taxonomy_name; | |
wp_nonce_field('custom-dropdown', 'dropdown-nonce'); | |
$terms = get_terms( $brand_taxonomy, 'hide_empty=0'); | |
if ( is_a( $terms, 'WP_Error' ) ) { | |
$terms = array(); | |
} | |
$object_terms = wp_get_object_terms( $post->ID, $brand_taxonomy, array('fields'=>'ids')); | |
if ( is_a( $object_terms, 'WP_Error' ) ) { | |
$object_terms = array(); | |
} | |
// you can move the below java script to admin_head | |
?> | |
<script type="text/javascript"> | |
jQuery(document).ready(function() { | |
jQuery('#custombrandoptions').change(function() { | |
var custombrand = jQuery('#custombrandoptions').val(); | |
if ( custombrand == '0') { | |
jQuery('#custommodeloptions').html(''); | |
jQuery('#modelcontainer').css('display', 'none'); | |
} else { | |
jQuery('#ctd-custom-taxonomy-terms-loading').css('display', 'inline'); | |
jQuery('#modelcontainer').css('display', 'none'); | |
var data = { | |
'action':'get_brand_models', | |
'custombrand':custombrand, | |
'dropdown-nonce': jQuery('#dropdown-nonce').val() | |
}; | |
jQuery.post(ajaxurl, data, function(response){ | |
jQuery('#custommodeloptions').html(response); | |
jQuery('#ctd-custom-taxonomy-terms-loading').css('display', 'none'); | |
jQuery('#modelcontainer').css('display', 'inline'); | |
}); | |
} | |
}); | |
}); | |
</script> | |
<?php | |
echo "Brand:"; | |
echo "<select id='custombrandoptions' name='custombrands[]'>"; | |
echo "<option value='0'>None</option>"; | |
foreach ( $terms as $term ) { | |
if ( $term->parent == 0) { | |
if ( in_array($term->term_id, $object_terms) ) { | |
$parent_id = $term->term_id; | |
echo "<option value='{$term->term_id}' selected='selected'>{$term->name}</option>"; | |
} else { | |
echo "<option value='{$term->term_id}'>{$term->name}</option>"; | |
} | |
} | |
} | |
echo "</select><br />"; | |
echo "<div id='ctd-custom-taxonomy-terms-loading' style='display:none;'>Loading...</div>"; | |
echo "<div id='modelcontainer'"; | |
if ( !isset( $parent_id)) echo " style='display: none;'"; | |
echo ">"; | |
echo "Models:"; | |
echo "<select id='custommodeloptions' name='custombrands[]'>"; | |
if ( isset( $parent_id)) { | |
$models = get_terms( $brand_taxonomy, 'hide_empty=0&child_of='.$parent_id); | |
foreach ( $models as $model ) { | |
if ( in_array($model->term_id, $object_terms) ) { | |
echo "<option value='{$model->term_id}' selected='selected'>{$model->name}</option>"; | |
} else { | |
echo "<option value='{$model->term_id}'>{$model->name}</option>"; | |
} | |
} | |
} | |
echo "</select>"; | |
echo "</div>"; | |
} | |
add_action('save_post','save_my_custom_taxonomy'); | |
function save_my_custom_taxonomy( $post_id ) { | |
global $brand_taxonomy, $taxonomy_name; | |
if ( define('DOING_AUTOSAVE') && DOING_AUTOSAVE ) | |
return; | |
if ( !wp_verify_nonce($_POST['dropdown-nonce'], 'custom-dropdown')) | |
return; | |
$brands = array_map('intval', $_POST['custombrands']); | |
wp_set_object_terms($post_id, $brands, $brand_taxonomy); | |
} | |
add_action('wp_ajax_get_brand_models', 'get_brand_models'); | |
function get_brand_models() { | |
global $brand_taxonomy, $taxonomy_name; | |
check_ajax_referer('custom-dropdown', 'dropdown-nonce'); | |
if (isset($_POST['custombrand'])) { | |
$models = get_terms( $brand_taxonomy, 'hide_empty=0&child_of='. $_POST['custombrand']); | |
echo "<option value='0'>Select one</option>"; | |
foreach ($models as $model) { | |
echo "<option value='{$model->term_id}'>{$model->name}</option>"; | |
} | |
} | |
die(); | |
} | |
?> |
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