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1 <?php |
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2 /** |
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3 * Post API: WP_Post_Type class |
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4 * |
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5 * @package WordPress |
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6 * @subpackage Post |
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7 * @since 4.6.0 |
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8 */ |
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9 |
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10 /** |
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11 * Core class used for interacting with post types. |
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12 * |
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13 * @since 4.6.0 |
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14 * |
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15 * @see register_post_type() |
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16 */ |
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17 final class WP_Post_Type { |
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18 /** |
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19 * Post type key. |
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20 * |
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21 * @since 4.6.0 |
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22 * @var string $name |
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23 */ |
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24 public $name; |
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25 |
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26 /** |
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27 * Name of the post type shown in the menu. Usually plural. |
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28 * |
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29 * @since 4.6.0 |
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30 * @var string $label |
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31 */ |
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32 public $label; |
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33 |
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34 /** |
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35 * Labels object for this post type. |
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36 * |
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37 * If not set, post labels are inherited for non-hierarchical types |
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38 * and page labels for hierarchical ones. |
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39 * |
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40 * @see get_post_type_labels() |
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41 * |
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42 * @since 4.6.0 |
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43 * @var object $labels |
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44 */ |
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45 public $labels; |
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46 |
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47 /** |
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48 * A short descriptive summary of what the post type is. |
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49 * |
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50 * Default empty. |
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51 * |
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52 * @since 4.6.0 |
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53 * @var string $description |
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54 */ |
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55 public $description = ''; |
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56 |
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57 /** |
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58 * Whether a post type is intended for use publicly either via the admin interface or by front-end users. |
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59 * |
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60 * While the default settings of $exclude_from_search, $publicly_queryable, $show_ui, and $show_in_nav_menus |
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61 * are inherited from public, each does not rely on this relationship and controls a very specific intention. |
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62 * |
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63 * Default false. |
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64 * |
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65 * @since 4.6.0 |
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66 * @var bool $public |
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67 */ |
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68 public $public = false; |
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69 |
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70 /** |
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71 * Whether the post type is hierarchical (e.g. page). |
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72 * |
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73 * Default false. |
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74 * |
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75 * @since 4.6.0 |
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76 * @var bool $hierarchical |
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77 */ |
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78 public $hierarchical = false; |
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79 |
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80 /** |
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81 * Whether to exclude posts with this post type from front end search |
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82 * results. |
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83 * |
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84 * Default is the opposite value of $public. |
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85 * |
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86 * @since 4.6.0 |
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87 * @var bool $exclude_from_search |
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88 */ |
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89 public $exclude_from_search = null; |
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90 |
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91 /** |
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92 * Whether queries can be performed on the front end for the post type as part of `parse_request()`. |
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93 * |
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94 * Endpoints would include: |
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95 * - `?post_type={post_type_key}` |
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96 * - `?{post_type_key}={single_post_slug}` |
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97 * - `?{post_type_query_var}={single_post_slug}` |
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98 * |
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99 * Default is the value of $public. |
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100 * |
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101 * @since 4.6.0 |
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102 * @var bool $publicly_queryable |
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103 */ |
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104 public $publicly_queryable = null; |
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105 |
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106 /** |
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107 * Whether to generate and allow a UI for managing this post type in the admin. |
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108 * |
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109 * Default is the value of $public. |
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110 * |
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111 * @since 4.6.0 |
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112 * @var bool $show_ui |
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113 */ |
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114 public $show_ui = null; |
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115 |
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116 /** |
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117 * Where to show the post type in the admin menu. |
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118 * |
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119 * To work, $show_ui must be true. If true, the post type is shown in its own top level menu. If false, no menu is |
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120 * shown. If a string of an existing top level menu (eg. 'tools.php' or 'edit.php?post_type=page'), the post type |
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121 * will be placed as a sub-menu of that. |
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122 * |
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123 * Default is the value of $show_ui. |
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124 * |
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125 * @since 4.6.0 |
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126 * @var bool $show_in_menu |
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127 */ |
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128 public $show_in_menu = null; |
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129 |
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130 /** |
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131 * Makes this post type available for selection in navigation menus. |
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132 * |
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133 * Default is the value $public. |
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134 * |
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135 * @since 4.6.0 |
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136 * @var bool $show_in_nav_menus |
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137 */ |
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138 public $show_in_nav_menus = null; |
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139 |
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140 /** |
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141 * Makes this post type available via the admin bar. |
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142 * |
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143 * Default is the value of $show_in_menu. |
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144 * |
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145 * @since 4.6.0 |
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146 * @var bool $show_in_admin_bar |
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147 */ |
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148 public $show_in_admin_bar = null; |
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149 |
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150 /** |
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151 * The position in the menu order the post type should appear. |
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152 * |
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153 * To work, $show_in_menu must be true. Default null (at the bottom). |
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154 * |
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155 * @since 4.6.0 |
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156 * @var int $menu_position |
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157 */ |
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158 public $menu_position = null; |
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159 |
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160 /** |
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161 * The URL to the icon to be used for this menu. |
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162 * |
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163 * Pass a base64-encoded SVG using a data URI, which will be colored to match the color scheme. |
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164 * This should begin with 'data:image/svg+xml;base64,'. Pass the name of a Dashicons helper class |
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165 * to use a font icon, e.g. 'dashicons-chart-pie'. Pass 'none' to leave div.wp-menu-image empty |
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166 * so an icon can be added via CSS. |
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167 * |
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168 * Defaults to use the posts icon. |
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169 * |
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170 * @since 4.6.0 |
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171 * @var string $menu_icon |
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172 */ |
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173 public $menu_icon = null; |
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174 |
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175 /** |
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176 * The string to use to build the read, edit, and delete capabilities. |
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177 * |
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178 * May be passed as an array to allow for alternative plurals when using |
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179 * this argument as a base to construct the capabilities, e.g. |
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180 * array( 'story', 'stories' ). Default 'post'. |
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181 * |
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182 * @since 4.6.0 |
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183 * @var string $capability_type |
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184 */ |
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185 public $capability_type = 'post'; |
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186 |
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187 /** |
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188 * Whether to use the internal default meta capability handling. |
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189 * |
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190 * Default false. |
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191 * |
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192 * @since 4.6.0 |
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193 * @var bool $map_meta_cap |
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194 */ |
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195 public $map_meta_cap = false; |
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196 |
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197 /** |
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198 * Provide a callback function that sets up the meta boxes for the edit form. |
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199 * |
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200 * Do `remove_meta_box()` and `add_meta_box()` calls in the callback. Default null. |
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201 * |
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202 * @since 4.6.0 |
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203 * @var string $register_meta_box_cb |
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204 */ |
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205 public $register_meta_box_cb = null; |
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206 |
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207 /** |
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208 * An array of taxonomy identifiers that will be registered for the post type. |
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209 * |
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210 * Taxonomies can be registered later with `register_taxonomy()` or `register_taxonomy_for_object_type()`. |
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211 * |
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212 * Default empty array. |
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213 * |
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214 * @since 4.6.0 |
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215 * @var array $taxonomies |
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216 */ |
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217 public $taxonomies = array(); |
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218 |
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219 /** |
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220 * Whether there should be post type archives, or if a string, the archive slug to use. |
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221 * |
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222 * Will generate the proper rewrite rules if $rewrite is enabled. Default false. |
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223 * |
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224 * @since 4.6.0 |
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225 * @var bool|string $has_archive |
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226 */ |
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227 public $has_archive = false; |
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228 |
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229 /** |
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230 * Sets the query_var key for this post type. |
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231 * |
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232 * Defaults to $post_type key. If false, a post type cannot be loaded at `?{query_var}={post_slug}`. |
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233 * If specified as a string, the query `?{query_var_string}={post_slug}` will be valid. |
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234 * |
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235 * @since 4.6.0 |
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236 * @var string|bool $query_var |
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237 */ |
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238 public $query_var; |
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239 |
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240 /** |
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241 * Whether to allow this post type to be exported. |
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242 * |
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243 * Default true. |
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244 * |
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245 * @since 4.6.0 |
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246 * @var bool $can_export |
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247 */ |
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248 public $can_export = true; |
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249 |
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250 /** |
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251 * Whether to delete posts of this type when deleting a user. |
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252 * |
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253 * If true, posts of this type belonging to the user will be moved to trash when then user is deleted. |
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254 * If false, posts of this type belonging to the user will *not* be trashed or deleted. |
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255 * If not set (the default), posts are trashed if post_type_supports( 'author' ). |
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256 * Otherwise posts are not trashed or deleted. Default null. |
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257 * |
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258 * @since 4.6.0 |
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259 * @var bool $delete_with_user |
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260 */ |
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261 public $delete_with_user = null; |
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262 |
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263 /** |
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264 * Whether this post type is a native or "built-in" post_type. |
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265 * |
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266 * Default false. |
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267 * |
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268 * @since 4.6.0 |
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269 * @var bool $_builtin |
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270 */ |
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271 public $_builtin = false; |
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272 |
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273 /** |
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274 * URL segment to use for edit link of this post type. |
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275 * |
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276 * Default 'post.php?post=%d'. |
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277 * |
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278 * @since 4.6.0 |
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279 * @var string $_edit_link |
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280 */ |
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281 public $_edit_link = 'post.php?post=%d'; |
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282 |
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283 /** |
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284 * Post type capabilities. |
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285 * |
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286 * @since 4.6.0 |
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287 * @var object $cap |
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288 */ |
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289 public $cap; |
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290 |
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291 /** |
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292 * Triggers the handling of rewrites for this post type. |
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293 * |
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294 * Defaults to true, using $post_type as slug. |
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295 * |
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296 * @since 4.6.0 |
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297 * @var array|false $rewrite |
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298 */ |
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299 public $rewrite; |
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300 |
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301 /** |
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302 * The features supported by the post type. |
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303 * |
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304 * @since 4.6.0 |
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305 * @var array|bool $supports |
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306 */ |
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307 public $supports; |
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308 |
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309 /** |
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310 * Whether this post type should appear in the REST API. |
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311 * |
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312 * Default false. If true, standard endpoints will be registered with |
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313 * respect to $rest_base and $rest_controller_class. |
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314 * |
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315 * @since 4.7.4 |
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316 * @var bool $show_in_rest |
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317 */ |
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318 public $show_in_rest; |
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319 |
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320 /** |
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321 * The base path for this post type's REST API endpoints. |
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322 * |
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323 * @since 4.7.4 |
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324 * @var string|bool $rest_base |
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325 */ |
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326 public $rest_base; |
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327 |
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328 /** |
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329 * The controller for this post type's REST API endpoints. |
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330 * |
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331 * Custom controllers must extend WP_REST_Controller. |
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332 * |
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333 * @since 4.7.4 |
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334 * @var string|bool $rest_controller_class |
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335 */ |
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336 public $rest_controller_class; |
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337 |
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338 /** |
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339 * Constructor. |
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340 * |
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341 * Will populate object properties from the provided arguments and assign other |
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342 * default properties based on that information. |
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343 * |
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344 * @since 4.6.0 |
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345 * |
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346 * @see register_post_type() |
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347 * |
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348 * @param string $post_type Post type key. |
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349 * @param array|string $args Optional. Array or string of arguments for registering a post type. |
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350 * Default empty array. |
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351 */ |
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352 public function __construct( $post_type, $args = array() ) { |
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353 $this->name = $post_type; |
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354 |
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355 $this->set_props( $args ); |
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356 } |
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357 |
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358 /** |
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359 * Sets post type properties. |
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360 * |
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361 * @since 4.6.0 |
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362 * |
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363 * @param array|string $args Array or string of arguments for registering a post type. |
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364 */ |
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365 public function set_props( $args ) { |
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366 $args = wp_parse_args( $args ); |
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367 |
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368 /** |
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369 * Filters the arguments for registering a post type. |
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370 * |
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371 * @since 4.4.0 |
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372 * |
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373 * @param array $args Array of arguments for registering a post type. |
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374 * @param string $post_type Post type key. |
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375 */ |
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376 $args = apply_filters( 'register_post_type_args', $args, $this->name ); |
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377 |
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378 $has_edit_link = ! empty( $args['_edit_link'] ); |
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379 |
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380 // Args prefixed with an underscore are reserved for internal use. |
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381 $defaults = array( |
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382 'labels' => array(), |
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383 'description' => '', |
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384 'public' => false, |
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385 'hierarchical' => false, |
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386 'exclude_from_search' => null, |
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387 'publicly_queryable' => null, |
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388 'show_ui' => null, |
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389 'show_in_menu' => null, |
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390 'show_in_nav_menus' => null, |
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391 'show_in_admin_bar' => null, |
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392 'menu_position' => null, |
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393 'menu_icon' => null, |
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394 'capability_type' => 'post', |
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395 'capabilities' => array(), |
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396 'map_meta_cap' => null, |
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397 'supports' => array(), |
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398 'register_meta_box_cb' => null, |
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399 'taxonomies' => array(), |
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400 'has_archive' => false, |
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401 'rewrite' => true, |
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402 'query_var' => true, |
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403 'can_export' => true, |
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404 'delete_with_user' => null, |
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405 'show_in_rest' => false, |
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406 'rest_base' => false, |
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407 'rest_controller_class' => false, |
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408 '_builtin' => false, |
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409 '_edit_link' => 'post.php?post=%d', |
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410 ); |
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411 |
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412 $args = array_merge( $defaults, $args ); |
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413 |
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414 $args['name'] = $this->name; |
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415 |
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416 // If not set, default to the setting for public. |
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417 if ( null === $args['publicly_queryable'] ) { |
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418 $args['publicly_queryable'] = $args['public']; |
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419 } |
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420 |
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421 // If not set, default to the setting for public. |
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422 if ( null === $args['show_ui'] ) { |
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423 $args['show_ui'] = $args['public']; |
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424 } |
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425 |
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426 // If not set, default to the setting for show_ui. |
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427 if ( null === $args['show_in_menu'] || ! $args['show_ui'] ) { |
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428 $args['show_in_menu'] = $args['show_ui']; |
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429 } |
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430 |
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431 // If not set, default to the whether the full UI is shown. |
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432 if ( null === $args['show_in_admin_bar'] ) { |
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433 $args['show_in_admin_bar'] = (bool) $args['show_in_menu']; |
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434 } |
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435 |
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436 // If not set, default to the setting for public. |
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437 if ( null === $args['show_in_nav_menus'] ) { |
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438 $args['show_in_nav_menus'] = $args['public']; |
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439 } |
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440 |
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441 // If not set, default to true if not public, false if public. |
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442 if ( null === $args['exclude_from_search'] ) { |
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443 $args['exclude_from_search'] = ! $args['public']; |
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444 } |
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445 |
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446 // Back compat with quirky handling in version 3.0. #14122. |
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447 if ( empty( $args['capabilities'] ) && null === $args['map_meta_cap'] && in_array( $args['capability_type'], array( 'post', 'page' ) ) ) { |
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448 $args['map_meta_cap'] = true; |
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449 } |
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450 |
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451 // If not set, default to false. |
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452 if ( null === $args['map_meta_cap'] ) { |
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453 $args['map_meta_cap'] = false; |
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454 } |
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455 |
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456 // If there's no specified edit link and no UI, remove the edit link. |
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457 if ( ! $args['show_ui'] && ! $has_edit_link ) { |
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458 $args['_edit_link'] = ''; |
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459 } |
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460 |
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461 $this->cap = get_post_type_capabilities( (object) $args ); |
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462 unset( $args['capabilities'] ); |
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463 |
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464 if ( is_array( $args['capability_type'] ) ) { |
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465 $args['capability_type'] = $args['capability_type'][0]; |
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466 } |
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467 |
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468 if ( false !== $args['query_var'] ) { |
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469 if ( true === $args['query_var'] ) { |
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470 $args['query_var'] = $this->name; |
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471 } else { |
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472 $args['query_var'] = sanitize_title_with_dashes( $args['query_var'] ); |
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473 } |
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474 } |
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475 |
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476 if ( false !== $args['rewrite'] && ( is_admin() || '' != get_option( 'permalink_structure' ) ) ) { |
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477 if ( ! is_array( $args['rewrite'] ) ) { |
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478 $args['rewrite'] = array(); |
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479 } |
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480 if ( empty( $args['rewrite']['slug'] ) ) { |
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481 $args['rewrite']['slug'] = $this->name; |
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482 } |
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483 if ( ! isset( $args['rewrite']['with_front'] ) ) { |
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484 $args['rewrite']['with_front'] = true; |
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485 } |
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486 if ( ! isset( $args['rewrite']['pages'] ) ) { |
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487 $args['rewrite']['pages'] = true; |
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488 } |
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489 if ( ! isset( $args['rewrite']['feeds'] ) || ! $args['has_archive'] ) { |
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490 $args['rewrite']['feeds'] = (bool) $args['has_archive']; |
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491 } |
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492 if ( ! isset( $args['rewrite']['ep_mask'] ) ) { |
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493 if ( isset( $args['permalink_epmask'] ) ) { |
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494 $args['rewrite']['ep_mask'] = $args['permalink_epmask']; |
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495 } else { |
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496 $args['rewrite']['ep_mask'] = EP_PERMALINK; |
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497 } |
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498 } |
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499 } |
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500 |
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501 foreach ( $args as $property_name => $property_value ) { |
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502 $this->$property_name = $property_value; |
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503 } |
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504 |
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505 $this->labels = get_post_type_labels( $this ); |
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506 $this->label = $this->labels->name; |
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507 } |
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508 |
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509 /** |
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510 * Sets the features support for the post type. |
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511 * |
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512 * @since 4.6.0 |
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513 */ |
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514 public function add_supports() { |
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515 if ( ! empty( $this->supports ) ) { |
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516 add_post_type_support( $this->name, $this->supports ); |
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517 unset( $this->supports ); |
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518 } elseif ( false !== $this->supports ) { |
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519 // Add default features. |
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520 add_post_type_support( $this->name, array( 'title', 'editor' ) ); |
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521 } |
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522 } |
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523 |
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524 /** |
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525 * Adds the necessary rewrite rules for the post type. |
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526 * |
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527 * @since 4.6.0 |
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528 * |
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529 * @global WP_Rewrite $wp_rewrite WordPress Rewrite Component. |
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530 * @global WP $wp Current WordPress environment instance. |
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531 */ |
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532 public function add_rewrite_rules() { |
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533 global $wp_rewrite, $wp; |
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534 |
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535 if ( false !== $this->query_var && $wp && is_post_type_viewable( $this ) ) { |
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536 $wp->add_query_var( $this->query_var ); |
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537 } |
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538 |
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539 if ( false !== $this->rewrite && ( is_admin() || '' != get_option( 'permalink_structure' ) ) ) { |
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540 if ( $this->hierarchical ) { |
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541 add_rewrite_tag( "%$this->name%", '(.+?)', $this->query_var ? "{$this->query_var}=" : "post_type=$this->name&pagename=" ); |
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542 } else { |
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543 add_rewrite_tag( "%$this->name%", '([^/]+)', $this->query_var ? "{$this->query_var}=" : "post_type=$this->name&name=" ); |
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544 } |
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545 |
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546 if ( $this->has_archive ) { |
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547 $archive_slug = true === $this->has_archive ? $this->rewrite['slug'] : $this->has_archive; |
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548 if ( $this->rewrite['with_front'] ) { |
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549 $archive_slug = substr( $wp_rewrite->front, 1 ) . $archive_slug; |
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550 } else { |
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551 $archive_slug = $wp_rewrite->root . $archive_slug; |
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552 } |
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553 |
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554 add_rewrite_rule( "{$archive_slug}/?$", "index.php?post_type=$this->name", 'top' ); |
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555 if ( $this->rewrite['feeds'] && $wp_rewrite->feeds ) { |
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556 $feeds = '(' . trim( implode( '|', $wp_rewrite->feeds ) ) . ')'; |
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557 add_rewrite_rule( "{$archive_slug}/feed/$feeds/?$", "index.php?post_type=$this->name" . '&feed=$matches[1]', 'top' ); |
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558 add_rewrite_rule( "{$archive_slug}/$feeds/?$", "index.php?post_type=$this->name" . '&feed=$matches[1]', 'top' ); |
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559 } |
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560 if ( $this->rewrite['pages'] ) { |
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561 add_rewrite_rule( "{$archive_slug}/{$wp_rewrite->pagination_base}/([0-9]{1,})/?$", "index.php?post_type=$this->name" . '&paged=$matches[1]', 'top' ); |
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562 } |
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563 } |
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564 |
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565 $permastruct_args = $this->rewrite; |
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566 $permastruct_args['feed'] = $permastruct_args['feeds']; |
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567 add_permastruct( $this->name, "{$this->rewrite['slug']}/%$this->name%", $permastruct_args ); |
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568 } |
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569 } |
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570 |
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571 /** |
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572 * Registers the post type meta box if a custom callback was specified. |
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573 * |
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574 * @since 4.6.0 |
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575 */ |
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576 public function register_meta_boxes() { |
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577 if ( $this->register_meta_box_cb ) { |
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578 add_action( 'add_meta_boxes_' . $this->name, $this->register_meta_box_cb, 10, 1 ); |
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579 } |
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580 } |
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581 |
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582 /** |
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583 * Adds the future post hook action for the post type. |
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584 * |
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585 * @since 4.6.0 |
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586 */ |
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587 public function add_hooks() { |
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588 add_action( 'future_' . $this->name, '_future_post_hook', 5, 2 ); |
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589 } |
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590 |
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591 /** |
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592 * Registers the taxonomies for the post type. |
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593 * |
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594 * @since 4.6.0 |
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595 */ |
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596 public function register_taxonomies() { |
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597 foreach ( $this->taxonomies as $taxonomy ) { |
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598 register_taxonomy_for_object_type( $taxonomy, $this->name ); |
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599 } |
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600 } |
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601 |
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602 /** |
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603 * Removes the features support for the post type. |
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604 * |
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605 * @since 4.6.0 |
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606 * |
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607 * @global array $_wp_post_type_features Post type features. |
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608 */ |
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609 public function remove_supports() { |
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610 global $_wp_post_type_features; |
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611 |
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612 unset( $_wp_post_type_features[ $this->name ] ); |
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613 } |
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614 |
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615 /** |
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616 * Removes any rewrite rules, permastructs, and rules for the post type. |
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617 * |
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618 * @since 4.6.0 |
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619 * |
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620 * @global WP_Rewrite $wp_rewrite WordPress rewrite component. |
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621 * @global WP $wp Current WordPress environment instance. |
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622 * @global array $post_type_meta_caps Used to remove meta capabilities. |
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623 */ |
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624 public function remove_rewrite_rules() { |
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625 global $wp, $wp_rewrite, $post_type_meta_caps; |
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626 |
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627 // Remove query var. |
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628 if ( false !== $this->query_var ) { |
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629 $wp->remove_query_var( $this->query_var ); |
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630 } |
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631 |
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632 // Remove any rewrite rules, permastructs, and rules. |
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633 if ( false !== $this->rewrite ) { |
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634 remove_rewrite_tag( "%$this->name%" ); |
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635 remove_permastruct( $this->name ); |
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636 foreach ( $wp_rewrite->extra_rules_top as $regex => $query ) { |
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637 if ( false !== strpos( $query, "index.php?post_type=$this->name" ) ) { |
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638 unset( $wp_rewrite->extra_rules_top[ $regex ] ); |
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639 } |
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640 } |
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641 } |
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642 |
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643 // Remove registered custom meta capabilities. |
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644 foreach ( $this->cap as $cap ) { |
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645 unset( $post_type_meta_caps[ $cap ] ); |
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646 } |
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647 } |
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648 |
|
649 /** |
|
650 * Unregisters the post type meta box if a custom callback was specified. |
|
651 * |
|
652 * @since 4.6.0 |
|
653 */ |
|
654 public function unregister_meta_boxes() { |
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655 if ( $this->register_meta_box_cb ) { |
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656 remove_action( 'add_meta_boxes_' . $this->name, $this->register_meta_box_cb, 10 ); |
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657 } |
|
658 } |
|
659 |
|
660 /** |
|
661 * Removes the post type from all taxonomies. |
|
662 * |
|
663 * @since 4.6.0 |
|
664 */ |
|
665 public function unregister_taxonomies() { |
|
666 foreach ( get_object_taxonomies( $this->name ) as $taxonomy ) { |
|
667 unregister_taxonomy_for_object_type( $taxonomy, $this->name ); |
|
668 } |
|
669 } |
|
670 |
|
671 /** |
|
672 * Removes the future post hook action for the post type. |
|
673 * |
|
674 * @since 4.6.0 |
|
675 */ |
|
676 public function remove_hooks() { |
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677 remove_action( 'future_' . $this->name, '_future_post_hook', 5 ); |
|
678 } |
|
679 } |