| 1 | <?php |
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| 2 | |
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| 3 | /* |
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| 4 | Plugin Name: Ordered Post Tags |
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| 5 | Plugin URI: https://gist.github.com/3217544 |
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| 6 | Description: Proof of concept plugin, not for production use. Converts post tags to an ordered taxonomy. |
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| 7 | Version: 0.1 |
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| 8 | Author: Simon Wheatley @ Code for the People Ltd |
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| 9 | Author URI: http://codeforthepeople.com |
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| 10 | */ |
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| 11 | |
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| 12 | /** |
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| 13 | * Copyright 2012 Code for the People Ltd. All rights reserved |
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| 14 | * Released under the GPL license |
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| 15 | * http://www.opensource.org/licenses/gpl-license.php |
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| 16 | * |
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| 17 | * This is an add-on for WordPress |
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| 18 | * http://wordpress.org/ |
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| 19 | * |
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| 20 | * ********************************************************************** |
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| 21 | * This program is free software; you can redistribute it and/or modify |
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| 22 | * it under the terms of the GNU General Public License as published by |
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| 23 | * the Free Software Foundation; either version 2 of the License, or |
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| 24 | * (at your option) any later version. |
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| 25 | * |
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| 26 | * This program is distributed in the hope that it will be useful, |
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| 27 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 28 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 29 | * GNU General Public License for more details. |
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| 30 | * ********************************************************************** |
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| 31 | */ |
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| 32 | |
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| 33 | /** |
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| 34 | * Hooks the WordPress init action to interfere with the |
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| 35 | * post_tag taxonomy. |
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| 36 | * |
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| 37 | * @return void |
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| 38 | **/ |
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| 39 | function opt_init() { |
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| 40 | // Get the current args for the post_tag taxonomy |
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| 41 | $post_tag_tax = get_taxonomy( 'post_tag', ARRAY_A ); |
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| 42 | // Convert to an array |
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| 43 | $post_tag_args = opt_convert_to_array( $post_tag_tax ); |
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| 44 | // Now make it sortable |
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| 45 | $post_tag_args[ 'sort' ] = true; |
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| 46 | // Exploit a feature whereby you can overwrite a taxonomy :) |
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| 47 | register_taxonomy( 'post_tag', 'post', $post_tag_args ); |
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| 48 | } |
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| 49 | add_action( 'init', 'opt_init' ); |
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| 50 | |
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| 51 | /** |
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| 52 | * A utility function that recursively traverses an object |
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| 53 | * and turns it into an associative array. |
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| 54 | * |
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| 55 | * @param mixed $thing Might be an object, might not be |
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| 56 | * @return array A (possibly multidimensional) array if an object (or array) was passed in |
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| 57 | **/ |
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| 58 | function opt_convert_to_array( & $thing ) { |
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| 59 | $thing = get_object_vars( $thing ); |
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| 60 | if ( is_array( $thing ) ) |
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| 61 | foreach ( $thing as $key => & $_thing ) |
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| 62 | if ( is_object( $_thing ) ) |
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| 63 | $thing[ $key ] = opt_convert_to_array( $_thing ); |
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| 64 | return $thing; |
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| 65 | } |
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| 66 | |
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| 67 | ?> |
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