duplicate-post
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duplicate-post.php
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gpl-3.0.txt
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make_duplicate_post.php
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save_as_new_post.php
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todo.txt
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duplicate-post.php
482 lines
| 1 | <?php |
| 2 | /* |
| 3 | Plugin Name: Duplicate Post |
| 4 | Plugin URI: http://www.lopo.it/duplicate-post.tar.gz |
| 5 | Description: Create a copy of a post. |
| 6 | Version: 0.4 |
| 7 | Author: Enrico Battocchi |
| 8 | Author URI: http://www.lopo.it |
| 9 | */ |
| 10 | |
| 11 | /* Copyright 2008 Enrico Battocchi (email : enrico.battocchi@gmail.com) |
| 12 | |
| 13 | This program is free software; you can redistribute it and/or modify |
| 14 | it under the terms of the GNU General Public License as published by |
| 15 | the Free Software Foundation; either version 3 of the License, or |
| 16 | (at your option) any later version. |
| 17 | |
| 18 | This program is distributed in the hope that it will be useful, |
| 19 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 21 | GNU General Public License for more details. |
| 22 | |
| 23 | You should have received a copy of the GNU General Public License |
| 24 | along with this program; if not, write to the Free Software |
| 25 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 26 | */ |
| 27 | |
| 28 | // Version of the plugin |
| 29 | define('DUPLICATE_POST_CURRENT_VERSION', '0.3' ); |
| 30 | define('DUPLICATE_POST_COLUMN', 'control_duplicate_post'); |
| 31 | define('DUPLICATE_POST_VIEW_USER_LEVEL_OPTION', 'duplicate_post_view_user_level'); |
| 32 | define('DUPLICATE_POST_CREATE_USER_LEVEL_OPTION', 'duplicate_post_create_user_level'); |
| 33 | define('DUPLICATE_POST_ADMIN_USER_LEVEL_OPTION', 'duplicate_post_admin_user_level'); |
| 34 | |
| 35 | // i18n plugin domain |
| 36 | define('DUPLICATE_POST_I18N_DOMAIN', 'duplicate-post'); |
| 37 | |
| 38 | /** |
| 39 | * Initialise the internationalisation domain |
| 40 | */ |
| 41 | $duplicate_post_is_i18n_setup = false; |
| 42 | function duplicate_post_init_i18n() { |
| 43 | global $duplicate_post_is_i18n_setup; |
| 44 | |
| 45 | if ($duplicate_post_is_i18n_setup == false) { |
| 46 | load_plugin_textdomain(DUPLICATE_POST_I18N_DOMAIN, 'wp-content/plugins/duplicate_post'); |
| 47 | $duplicate_post_is_i18n_setup = true; |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * Plugin activation |
| 53 | */ |
| 54 | add_action('activate_duplicate-post/duplicate-post.php','duplicate_post_plugin_activation'); |
| 55 | |
| 56 | |
| 57 | function duplicate_post_plugin_activation() { |
| 58 | $installed_version = duplicate_post_get_installed_version(); |
| 59 | |
| 60 | if ( $installed_version==duplicate_post_get_current_version() ) { |
| 61 | // do nothing |
| 62 | } else if ( $installed_version=='' ) { |
| 63 | // Add all options, nothing already installed |
| 64 | add_option( |
| 65 | DUPLICATE_POST_VIEW_USER_LEVEL_OPTION, |
| 66 | '2', |
| 67 | 'Default user level to copy posts' ); |
| 68 | add_option( |
| 69 | DUPLICATE_POST_CREATE_USER_LEVEL_OPTION, |
| 70 | '5', |
| 71 | 'Default user level to create the templates' ); |
| 72 | add_option( |
| 73 | DUPLICATE_POST_ADMIN_USER_LEVEL_OPTION, |
| 74 | '8', |
| 75 | 'Default user level to change the plugin options' ); |
| 76 | } |
| 77 | |
| 78 | // Update version number |
| 79 | update_option( 'duplicate_post_version', duplicate_post_get_current_version() ); |
| 80 | } |
| 81 | |
| 82 | |
| 83 | /** |
| 84 | * Add a column in the post listing |
| 85 | */ |
| 86 | add_filter('manage_posts_columns', 'duplicate_post_add_duplicate_post_column'); |
| 87 | add_action('manage_posts_custom_column', 'duplicate_post_make_duplicate_link', 10, 2); |
| 88 | |
| 89 | function duplicate_post_add_duplicate_post_column($columns) { |
| 90 | if (duplicate_post_is_current_user_allowed_to_create()) { |
| 91 | $columns[DUPLICATE_POST_COLUMN] = ''; |
| 92 | } |
| 93 | return $columns; |
| 94 | } |
| 95 | |
| 96 | function duplicate_post_make_duplicate_link($column_name, $id) { |
| 97 | if (duplicate_post_is_current_user_allowed_to_create()) { |
| 98 | if ($column_name == DUPLICATE_POST_COLUMN) { |
| 99 | echo "<a href='edit.php?page=duplicate-post/make_duplicate_post.php&post=" . $id |
| 100 | . "' title='" . __("Make a duplicate from this post", DUPLICATE_POST_I18N_DOMAIN) |
| 101 | . "' class='edit'>" . __("Duplicate", DUPLICATE_POST_I18N_DOMAIN) . "</a>"; |
| 102 | } |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | |
| 107 | |
| 108 | /** |
| 109 | * Add a button in the post edit form to create a clone |
| 110 | */ |
| 111 | add_action( 'edit_form_advanced', 'duplicate_post_add_duplicate_post_button' ); |
| 112 | |
| 113 | |
| 114 | |
| 115 | function duplicate_post_add_duplicate_post_button() { |
| 116 | if ( isset( $_GET['post'] ) && duplicate_post_is_current_user_allowed_to_create()) { |
| 117 | $notifyUrl = "edit.php?page=duplicate-post/save_as_new_post.php&post=" . $_GET['post']; |
| 118 | ?> |
| 119 | <script language="JavaScript"> |
| 120 | <!-- |
| 121 | function save_as_copy( thisForm ) { |
| 122 | thisForm.referredby.value = "<?php echo $notifyUrl; ?>"; |
| 123 | thisForm.action = "edit.php?page=duplicate-post/save_as_new_post.php"; |
| 124 | thisForm.submit(); |
| 125 | } |
| 126 | // --> |
| 127 | </script> |
| 128 | <input type="hidden" name="post" value="<?php echo $_GET['post']; ?>" /> |
| 129 | <p class="submit"> |
| 130 | <span style="font-weight: bold; color: red;"> |
| 131 | <?php _e('Click here to create a copy of this post.', DUPLICATE_POST_I18N_DOMAIN); ?> |
| 132 | </span> |
| 133 | <input type="submit" name="SubmitNotification" |
| 134 | value="<?php echo __('Make Copy', DUPLICATE_POST_I18N_DOMAIN) . ' »'; ?>" |
| 135 | onclick="save_as_copy( this.form )" /> |
| 136 | </p> |
| 137 | <?php |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * Add a button in the page edit form to create a clone |
| 143 | */ |
| 144 | add_action( 'edit_page_form', 'duplicate_post_add_duplicate_page_button' ); |
| 145 | |
| 146 | function duplicate_post_add_duplicate_page_button() { |
| 147 | if ( isset( $_GET['post'] ) && duplicate_post_is_current_user_allowed_to_create()) { |
| 148 | $notifyUrl = "edit.php?page=duplicate-post/save_as_new_page.php&post=" . $_GET['post']; |
| 149 | ?> |
| 150 | <script language="JavaScript"> |
| 151 | <!-- |
| 152 | function save_as_copy( thisForm ) { |
| 153 | thisForm.referredby.value = "<?php echo $notifyUrl; ?>"; |
| 154 | thisForm.action = "edit.php?page=duplicate-post/save_as_new_page.php"; |
| 155 | thisForm.submit(); |
| 156 | } |
| 157 | // --> |
| 158 | </script> |
| 159 | <input type="hidden" name="post" value="<?php echo $_GET['post']; ?>" /> |
| 160 | <p class="submit"> |
| 161 | <span style="font-weight: bold; color: red;"> |
| 162 | <?php _e('Click here to create a copy of this page.', DUPLICATE_POST_I18N_DOMAIN); ?> |
| 163 | </span> |
| 164 | <input type="submit" name="SubmitNotification" |
| 165 | value="<?php echo __('Make Copy', DUPLICATE_POST_I18N_DOMAIN) . ' »'; ?>" |
| 166 | onclick="save_as_copy( this.form )" /> |
| 167 | </p> |
| 168 | <?php |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | /** |
| 173 | * Wrapper for the option 'duplicate_post_view_user_level' |
| 174 | */ |
| 175 | function duplicate_post_get_view_user_level() { |
| 176 | return get_option( DUPLICATE_POST_VIEW_USER_LEVEL_OPTION ); |
| 177 | } |
| 178 | |
| 179 | /** |
| 180 | * Wrapper for the option 'duplicate_post_view_user_level' |
| 181 | */ |
| 182 | function duplicate_post_set_view_user_level($new_level) { |
| 183 | return update_option( DUPLICATE_POST_VIEW_USER_LEVEL_OPTION, $new_level ); |
| 184 | } |
| 185 | |
| 186 | /** |
| 187 | * Wrapper for the option 'duplicate_post_create_user_level' |
| 188 | */ |
| 189 | function duplicate_post_get_create_user_level() { |
| 190 | return get_option( DUPLICATE_POST_CREATE_USER_LEVEL_OPTION ); |
| 191 | } |
| 192 | |
| 193 | /** |
| 194 | * Wrapper for the option 'duplicate_post_create_user_level' |
| 195 | */ |
| 196 | function duplicate_post_set_create_user_level($new_level) { |
| 197 | return update_option( DUPLICATE_POST_CREATE_USER_LEVEL_OPTION, $new_level ); |
| 198 | } |
| 199 | |
| 200 | /** |
| 201 | * Wrapper for the option 'duplicate_post_admin_user_level' |
| 202 | */ |
| 203 | function duplicate_post_get_admin_user_level() { |
| 204 | return get_option( DUPLICATE_POST_ADMIN_USER_LEVEL_OPTION ); |
| 205 | } |
| 206 | |
| 207 | /** |
| 208 | * Wrapper for the option 'duplicate_post_admin_user_level' |
| 209 | */ |
| 210 | function duplicate_post_set_admin_user_level($new_level) { |
| 211 | return update_option( DUPLICATE_POST_ADMIN_USER_LEVEL_OPTION, $new_level ); |
| 212 | } |
| 213 | |
| 214 | /** |
| 215 | * Wrapper for the option 'duplicate_post_version' |
| 216 | */ |
| 217 | function duplicate_post_get_installed_version() { |
| 218 | return get_option( 'duplicate_post_version' ); |
| 219 | } |
| 220 | |
| 221 | /** |
| 222 | * Wrapper for the defined constant DUPLICATE_POST_CURRENT_VERSION |
| 223 | */ |
| 224 | function duplicate_post_get_current_version() { |
| 225 | return DUPLICATE_POST_CURRENT_VERSION; |
| 226 | } |
| 227 | |
| 228 | /** |
| 229 | * Test if the user is allowed to view the templates & create posts |
| 230 | */ |
| 231 | function duplicate_post_is_current_user_allowed_to_view() { |
| 232 | return current_user_can("level_" . duplicate_post_get_view_user_level()); |
| 233 | } |
| 234 | |
| 235 | /** |
| 236 | * Test if the user is allowed to create templates |
| 237 | */ |
| 238 | function duplicate_post_is_current_user_allowed_to_create() { |
| 239 | return current_user_can("level_" . duplicate_post_get_create_user_level()); |
| 240 | } |
| 241 | |
| 242 | /** |
| 243 | * Test if the user is allowed to administrate the plugin |
| 244 | */ |
| 245 | function duplicate_post_is_current_user_allowed_to_admin() { |
| 246 | return current_user_can("level_" . duplicate_post_get_admin_user_level()); |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Get a level given a role |
| 251 | */ |
| 252 | function duplicate_post_get_level_from_role($role) { |
| 253 | switch ($role) { |
| 254 | case 0: // subscribers 0 |
| 255 | return 0; |
| 256 | case 1: // contributors 1 |
| 257 | return 1; |
| 258 | case 2: // authors 2..4 |
| 259 | return 2; |
| 260 | case 3: // editors 5..7 |
| 261 | return 5; |
| 262 | case 4: // administrators 8..10 |
| 263 | return 8; |
| 264 | default: // error |
| 265 | return 0; |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | /** |
| 270 | * Get a role given a level |
| 271 | */ |
| 272 | function duplicate_post_get_role_from_level($level) { |
| 273 | if ($level<=0) { |
| 274 | // subscribers 0 |
| 275 | return 0; |
| 276 | } else if ($level==1) { |
| 277 | // contributors 1 |
| 278 | return 1; |
| 279 | } else if ($level>=2 && $level<=4) { |
| 280 | // authors 2..4 |
| 281 | return 2; |
| 282 | } else if ($level>=5 && $level<=7) { |
| 283 | // editors 5..7 |
| 284 | return 3; |
| 285 | } else if ($level>=8) { |
| 286 | // admins 8..10 |
| 287 | return 4; |
| 288 | } |
| 289 | return 0; |
| 290 | } |
| 291 | |
| 292 | /** |
| 293 | * Get the currently registered user |
| 294 | */ |
| 295 | function duplicate_post_get_current_user() { |
| 296 | if (function_exists('wp_get_current_user')) { |
| 297 | return wp_get_current_user(); |
| 298 | } else if (function_exists('get_currentuserinfo')) { |
| 299 | global $userdata; |
| 300 | get_currentuserinfo(); |
| 301 | return $userdata; |
| 302 | } else { |
| 303 | $user_login = $_COOKIE[USER_COOKIE]; |
| 304 | $current_user = $wpdb->get_results("SELECT * FROM $wpdb->users WHERE user_login='$user_login'"); |
| 305 | return $current_user; |
| 306 | } |
| 307 | } |
| 308 | |
| 309 | /** |
| 310 | * Escape single quotes, specialchar double quotes, and fix line endings. |
| 311 | */ |
| 312 | function duplicate_post_js_escape($text) { |
| 313 | if (function_exists('js_escape')) { |
| 314 | return js_escape($text); |
| 315 | } else { |
| 316 | $safe_text = str_replace('&&', '&&', $text); |
| 317 | $safe_text = str_replace('&&', '&&', $safe_text); |
| 318 | $safe_text = preg_replace('/&(?:$|([^#])(?![a-z1-4]{1,8};))/', '&$1', $safe_text); |
| 319 | $safe_text = str_replace('<', '<', $safe_text); |
| 320 | $safe_text = str_replace('>', '>', $safe_text); |
| 321 | $safe_text = str_replace('"', '"', $safe_text); |
| 322 | $safe_text = str_replace(''', "'", $safe_text); |
| 323 | $safe_text = preg_replace("/\r?\n/", "\\n", addslashes($safe_text)); |
| 324 | return safe_text; |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | /** |
| 329 | * Get a page from the database |
| 330 | */ |
| 331 | function duplicate_post_get_page($id) { |
| 332 | global $wpdb; |
| 333 | $post = $wpdb->get_results("SELECT * FROM $wpdb->posts WHERE ID=$id"); |
| 334 | if ($post->post_type == "revision"){ |
| 335 | $id = $post->post_parent; |
| 336 | $post = $wpdb->get_results("SELECT * FROM $wpdb->posts WHERE ID=$id"); |
| 337 | } |
| 338 | return $post[0]; |
| 339 | } |
| 340 | |
| 341 | /** |
| 342 | * Get a post from the database |
| 343 | */ |
| 344 | function duplicate_post_get_post($id) { |
| 345 | global $wpdb; |
| 346 | $post = $wpdb->get_results("SELECT * FROM $wpdb->posts WHERE ID=$id"); |
| 347 | if ($post->post_type == "revision"){ |
| 348 | $id = $post->post_parent; |
| 349 | $post = $wpdb->get_results("SELECT * FROM $wpdb->posts WHERE ID=$id"); |
| 350 | } |
| 351 | return $post[0]; |
| 352 | } |
| 353 | |
| 354 | /** |
| 355 | * Copy the categories of a post to another post |
| 356 | */ |
| 357 | function duplicate_post_copy_post_categories($id, $new_id) { |
| 358 | global $wpdb; |
| 359 | if (isset($wpdb->terms)) { |
| 360 | // WordPress 2.3 |
| 361 | $taxonomies = get_object_taxonomies('post'); //array("category", "post_tag"); |
| 362 | foreach ($taxonomies as $taxonomy) { |
| 363 | $post_terms = wp_get_object_terms($id, $taxonomy); |
| 364 | for ($i=0; $i<count($post_terms); $i++) { |
| 365 | wp_set_object_terms($new_id, $post_terms[$i]->slug, $taxonomy, true); |
| 366 | } |
| 367 | } |
| 368 | } else { |
| 369 | $post_categories = $wpdb->get_results("SELECT category_id FROM $wpdb->post2cat WHERE post_id=$id"); |
| 370 | if (count($post_categories)!=0) { |
| 371 | $sql_query = "INSERT INTO $wpdb->post2cat (post_id, category_id) "; |
| 372 | |
| 373 | for ($i=0; $i<count($post_categories); $i++) { |
| 374 | $post_category = $post_categories[$i]->category_id; |
| 375 | |
| 376 | if ($i<count($post_categories)-1) { |
| 377 | $sql_query .= "SELECT $new_id, $post_category UNION ALL "; |
| 378 | } else { |
| 379 | $sql_query .= "SELECT $new_id, $post_category"; |
| 380 | } |
| 381 | } |
| 382 | |
| 383 | $wpdb->query($sql_query); |
| 384 | } |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | /** |
| 389 | * Copy the meta information of a post to another post |
| 390 | */ |
| 391 | function duplicate_post_copy_post_meta_info($id, $new_id) { |
| 392 | global $wpdb; |
| 393 | $post_meta_infos = $wpdb->get_results("SELECT meta_key, meta_value FROM $wpdb->postmeta WHERE post_id=$id"); |
| 394 | |
| 395 | if (count($post_meta_infos)!=0) { |
| 396 | $sql_query = "INSERT INTO $wpdb->postmeta (post_id, meta_key, meta_value) "; |
| 397 | |
| 398 | for ($i=0; $i<count($post_meta_infos); $i++) { |
| 399 | $meta_info = $post_meta_infos[$i]; |
| 400 | |
| 401 | if ($i<count($post_meta_infos)-1) { |
| 402 | $sql_query .= "SELECT $new_id, '$meta_info->meta_key', '$meta_info->meta_value' UNION ALL "; |
| 403 | } else { |
| 404 | $sql_query .= "SELECT $new_id, '$meta_info->meta_key', '$meta_info->meta_value'"; |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | $wpdb->query($sql_query); |
| 409 | } |
| 410 | } |
| 411 | |
| 412 | /** |
| 413 | * Create a duplicate from a post |
| 414 | */ |
| 415 | function duplicate_post_create_duplicate_from_post($post) { |
| 416 | global $wpdb; |
| 417 | $new_post_type = 'post'; |
| 418 | $new_post_author = duplicate_post_get_current_user(); |
| 419 | $new_post_date = current_time('mysql'); |
| 420 | $new_post_date_gmt = get_gmt_from_date($new_post_date); |
| 421 | |
| 422 | $post_content = str_replace("'", "''", $post->post_content); |
| 423 | $post_content_filtered = str_replace("'", "''", $post->post_content_filtered); |
| 424 | $post_excerpt = str_replace("'", "''", $post->post_excerpt); |
| 425 | $post_title = str_replace("'", "''", $post->post_title); |
| 426 | $post_status = str_replace("'", "''", $post->post_status); |
| 427 | $comment_status = str_replace("'", "''", $post->comment_status); |
| 428 | $ping_status = str_replace("'", "''", $post->ping_status); |
| 429 | |
| 430 | // Insert the new template in the post table |
| 431 | $wpdb->query( |
| 432 | "INSERT INTO $wpdb->posts |
| 433 | (post_author, post_date, post_date_gmt, post_content, post_content_filtered, post_title, post_excerpt, post_status, post_type, comment_status, ping_status, post_password, to_ping, pinged, post_modified, post_modified_gmt, post_parent, menu_order, post_mime_type) |
| 434 | VALUES |
| 435 | ('$new_post_author->ID', '', '', '$post_content', '$post_content_filtered', '$post_title', '$post_excerpt', 'draft', '$new_post_type', '$comment_status', '$ping_status', '$post->post_password', '$post->to_ping', '$post->pinged', '', '', '$post->post_parent', '$post->menu_order', '$post->post_mime_type')"); |
| 436 | |
| 437 | $new_post_id = $wpdb->insert_id; |
| 438 | |
| 439 | // Copy the categories |
| 440 | duplicate_post_copy_post_categories($post->ID, $new_post_id); |
| 441 | |
| 442 | // Copy the meta information |
| 443 | duplicate_post_copy_post_meta_info($post->ID, $new_post_id); |
| 444 | |
| 445 | return $new_post_id; |
| 446 | } |
| 447 | |
| 448 | /** |
| 449 | * Create a duplicate from a page |
| 450 | */ |
| 451 | function duplicate_post_create_duplicate_from_page($post) { |
| 452 | global $wpdb; |
| 453 | $new_post_type = 'page'; |
| 454 | $new_post_date = current_time('mysql'); |
| 455 | $new_post_date_gmt = get_gmt_from_date($new_post_date); |
| 456 | |
| 457 | $post_content = str_replace("'", "''", $post->post_content); |
| 458 | $post_content_filtered = str_replace("'", "''", $post->post_content_filtered); |
| 459 | $post_excerpt = str_replace("'", "''", $post->post_excerpt); |
| 460 | $post_title = str_replace("'", "''", $post->post_title); |
| 461 | $post_status = str_replace("'", "''", $post->post_status); |
| 462 | $post_name = str_replace("'", "''", $post->post_name); |
| 463 | $comment_status = str_replace("'", "''", $post->comment_status); |
| 464 | $ping_status = str_replace("'", "''", $post->ping_status); |
| 465 | |
| 466 | // Insert the new template in the post table |
| 467 | $wpdb->query( |
| 468 | "INSERT INTO $wpdb->posts |
| 469 | (post_author, post_date, post_date_gmt, post_content, post_content_filtered, post_title, post_excerpt, post_status, post_type, comment_status, ping_status, post_password, post_name, to_ping, pinged, post_modified, post_modified_gmt, post_parent, menu_order, post_mime_type) |
| 470 | VALUES |
| 471 | ('$post->post_author', '', '', '$post_content', '$post_content_filtered', '$post_title', '$post_excerpt', 'draft', '$new_post_type', '$comment_status', '$ping_status', '$post->post_password', '$post_name', '$post->to_ping', '$post->pinged', '', '', '$post->post_parent', '$post->menu_order', '$post->post_mime_type')"); |
| 472 | |
| 473 | $new_page_id = $wpdb->insert_id; |
| 474 | |
| 475 | // Copy the meta information |
| 476 | duplicate_post_copy_post_meta_info($post->ID, $new_page_id); |
| 477 | |
| 478 | return $new_page_id; |
| 479 | } |
| 480 | |
| 481 | |
| 482 | ?> |