1 | <?php |
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2 | /* |
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3 | Plugin Name: Preserve Page and Taxonomy Hierarchy on Edit Menus Screen |
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4 | Version: 0.1 |
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5 | Plugin URI: https://core.trac.wordpress.org/ticket/18282 |
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6 | Description: Disables paging for hierarchical post types and taxonomies on Edit Menus screen to preserve proper hierarchy in meta boxes. |
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7 | Author: Sergey Biryukov |
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8 | Author URI: http://profiles.wordpress.org/sergeybiryukov/ |
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9 | */ |
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10 | |
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11 | class Preserve_Page_and_Taxonomy_Hierarchy { |
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12 | |
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13 | function __construct() { |
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14 | add_action( 'load-nav-menus.php', array( $this, 'init' ) ); |
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15 | } |
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16 | |
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17 | function init() { |
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18 | add_action( 'pre_get_posts', array( $this, 'disable_paging_for_hierarchical_post_types' ) ); |
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19 | add_filter( 'get_terms_args', array( $this, 'remove_limit_for_hierarchical_taxonomies' ), 10, 2 ); |
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20 | add_filter( 'get_terms_fields', array( $this, 'remove_page_links_for_hierarchical_taxonomies' ), 10, 3 ); |
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21 | } |
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22 | |
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23 | function disable_paging_for_hierarchical_post_types( $query ) { |
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24 | if ( ! is_admin() || 'nav-menus' !== get_current_screen()->id ) { |
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25 | return; |
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26 | } |
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27 | |
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28 | if ( ! is_post_type_hierarchical( $query->get( 'post_type' ) ) ) { |
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29 | return; |
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30 | } |
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31 | |
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32 | if ( 50 == $query->get( 'posts_per_page' ) ) { |
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33 | $query->set( 'nopaging', true ); |
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34 | } |
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35 | } |
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36 | |
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37 | function remove_limit_for_hierarchical_taxonomies( $args, $taxonomies ) { |
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38 | if ( ! is_admin() || 'nav-menus' !== get_current_screen()->id ) { |
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39 | return $args; |
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40 | } |
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41 | |
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42 | if ( ! is_taxonomy_hierarchical( reset( $taxonomies ) ) ) { |
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43 | return $args; |
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44 | } |
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45 | |
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46 | if ( 50 == $args['number'] ) { |
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47 | $args['number'] = ''; |
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48 | } |
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49 | |
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50 | return $args; |
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51 | } |
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52 | |
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53 | function remove_page_links_for_hierarchical_taxonomies( $selects, $args, $taxonomies ) { |
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54 | if ( ! is_admin() || 'nav-menus' !== get_current_screen()->id ) { |
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55 | return $selects; |
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56 | } |
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57 | |
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58 | if ( ! is_taxonomy_hierarchical( reset( $taxonomies ) ) ) { |
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59 | return $selects; |
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60 | } |
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61 | |
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62 | if ( 'count' === $args['fields'] ) { |
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63 | $selects = array( '1' ); |
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64 | } |
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65 | |
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66 | return $selects; |
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67 | } |
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68 | |
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69 | } |
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70 | |
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71 | new Preserve_Page_and_Taxonomy_Hierarchy; |
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72 | ?> |
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