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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 4 times in this file.
| Line | Code |
|---|---|
| 2145 | |
| 2146 | /** |
| 2147 | * Filters the media upload form action URL. |
| 2148 | * |
| 2149 | * @since 2.6.0 |
| 2150 | * |
| 2151 | * @param string $form_action_url The media upload form action URL. |
| 2152 | * @param string $type The type of media. Default 'file'. |
| 2153 | */ |
| 2154 | $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type ); |
| 2155 | $form_class = 'media-upload-form type-form validate'; |
| 2156 | |
| 2157 | if ( get_user_setting( 'uploader' ) ) { |
| 2158 | $form_class .= ' html-uploader'; |
| 2159 | } |
| 2160 | ?> |
| 2161 | |
| 2162 | <form enctype="multipart/form-data" method="post" action="<?php echo esc_url( $form_action_url ); ?>" class="<?php echo $form_class; ?>" id="<?php echo $type; ?>-form"> |
| 2163 | <?php submit_button( '', 'hidden', 'save', false ); ?> |
| Line | Code |
| 2213 | $type = 'image'; |
| 2214 | } |
| 2215 | |
| 2216 | media_upload_header(); |
| 2217 | |
| 2218 | $post_id = isset( $_REQUEST['post_id'] ) ? intval( $_REQUEST['post_id'] ) : 0; |
| 2219 | |
| 2220 | $form_action_url = admin_url( "media-upload.php?type=$type&tab=type&post_id=$post_id" ); |
| 2221 | /** This filter is documented in wp-admin/includes/media.php */ |
| 2222 | $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type ); |
| 2223 | $form_class = 'media-upload-form type-form validate'; |
| 2224 | |
| 2225 | if ( get_user_setting( 'uploader' ) ) { |
| 2226 | $form_class .= ' html-uploader'; |
| 2227 | } |
| 2228 | ?> |
| 2229 | |
| 2230 | <form enctype="multipart/form-data" method="post" action="<?php echo esc_url( $form_action_url ); ?>" class="<?php echo $form_class; ?>" id="<?php echo $type; ?>-form"> |
| 2231 | <input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" /> |
| Line | Code |
| 2357 | function media_upload_gallery_form( $errors ) { |
| 2358 | global $redir_tab, $type; |
| 2359 | |
| 2360 | $redir_tab = 'gallery'; |
| 2361 | media_upload_header(); |
| 2362 | |
| 2363 | $post_id = intval( $_REQUEST['post_id'] ); |
| 2364 | $form_action_url = admin_url( "media-upload.php?type=$type&tab=gallery&post_id=$post_id" ); |
| 2365 | /** This filter is documented in wp-admin/includes/media.php */ |
| 2366 | $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type ); |
| 2367 | $form_class = 'media-upload-form validate'; |
| 2368 | |
| 2369 | if ( get_user_setting( 'uploader' ) ) { |
| 2370 | $form_class .= ' html-uploader'; |
| 2371 | } |
| 2372 | ?> |
| 2373 | |
| 2374 | <script type="text/javascript"> |
| 2375 | jQuery(function($){ |
| Line | Code |
| 2521 | function media_upload_library_form( $errors ) { |
| 2522 | global $wpdb, $wp_query, $wp_locale, $type, $tab, $post_mime_types; |
| 2523 | |
| 2524 | media_upload_header(); |
| 2525 | |
| 2526 | $post_id = isset( $_REQUEST['post_id'] ) ? intval( $_REQUEST['post_id'] ) : 0; |
| 2527 | |
| 2528 | $form_action_url = admin_url( "media-upload.php?type=$type&tab=library&post_id=$post_id" ); |
| 2529 | /** This filter is documented in wp-admin/includes/media.php */ |
| 2530 | $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type ); |
| 2531 | $form_class = 'media-upload-form validate'; |
| 2532 | |
| 2533 | if ( get_user_setting( 'uploader' ) ) { |
| 2534 | $form_class .= ' html-uploader'; |
| 2535 | } |
| 2536 | |
| 2537 | $q = $_GET; |
| 2538 | $q['posts_per_page'] = 10; |
| 2539 | $q['paged'] = isset( $q['paged'] ) ? intval( $q['paged'] ) : 0; |