Adds extra meta boxes to save image author name and url. Shows image credits in the end of post content
<?php /** * Image Author Link * * Extra Meta Box to save image author name and url to display credits in the end of post content * * @since WW Theme 1.0 */ /* Define the custom box */ add_action( 'add_meta_boxes', 'ww_image_author_add_custom_box' ); /* Do something with the data entered */ add_action( 'save_post', 'ww_image_author_save_postdata' ); /* Add image author link to post */ add_filter( 'the_content', 'ww_add_image_author_link_to_post_content', 200 ); /* Global variables */ $ww_image_author_name = ''; $ww_image_author_url = ''; /* Adds a box to the main column on the Post and Page edit screens */ function ww_image_author_add_custom_box() { add_meta_box( 'ww_image_author_sectionid', 'Bildkälla', 'ww_image_author_inner_custom_box', 'post', 'side', 'low' ); add_meta_box( 'ww_image_author_sectionid', 'Bildkälla', 'ww_image_author_inner_custom_box', 'page', 'side', 'low' ); } /* Prints the box content */ function ww_image_author_inner_custom_box( $post ) { wp_nonce_field( 'ww_image_author_nonce', 'ww_image_author_noncename' ); // Use nonce for verification global $ww_image_author_name, $ww_image_author_url; $ww_image_author_name = get_post_meta($post->ID, 'ww_image_author_name', true); $ww_image_author_url = get_post_meta($post->ID, 'ww_image_author_url', true); // The actual fields for data entry echo '<p><strong>Namn</strong></p>'; echo '<label for="ww_image_author_name_field" class="screen-reader-text">Namn</label> '; echo '<input type="text" id="ww_image_author_name" name="ww_image_author_name" value="'.$ww_image_author_name.'" size="40" />'; echo '<p><strong>Adress</strong></p>'; echo '<label for="ww_image_author_name_field" class="screen-reader-text">Adress</label> '; echo '<input type="text" id="ww_image_author_url" name="ww_image_author_url" value="'.$ww_image_author_url.'" size="40" />'; } /* When the post is saved, saves our custom data */ function ww_image_author_save_postdata( $post_id ) { // verify if this is an auto save routine. // If it is our form has not been submitted, so we dont want to do anything if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) return; // verify this came from the our screen and with proper authorization, // because save_post can be triggered at other times if ( !wp_verify_nonce( $_POST['ww_image_author_noncename'], 'ww_image_author_nonce' ) ) return; // Check permissions if ( 'page' == $_POST['post_type'] ) { if ( !current_user_can( 'edit_page', $post_id ) ) return; } else { if ( !current_user_can( 'edit_post', $post_id ) ) return; } // OK, we're authenticated: Now save the data ww_save_post_meta($post_id, 'ww_image_author_name', $_POST['ww_image_author_name']); ww_save_post_meta($post_id, 'ww_image_author_url', $_POST['ww_image_author_url']); } function ww_save_post_meta($post_id, $meta_name, $meta_value) { if ( get_post_meta($post_id, $meta_name == "") ) { add_post_meta($post_id, $meta_name, $meta_value, true); return true; } elseif ( $data != get_post_meta($post_id, $meta_name, true) ) { update_post_meta($post_id, $meta_name, $meta_value, true); } elseif ($post_meta_value == "") { delete_post_meta($post_id, $post_meta_name); } } function ww_add_image_author_link_to_post_content( $content ) { global $post; $ww_image_author_name = get_post_meta($post->ID, 'ww_image_author_name', true); $ww_image_author_url = get_post_meta($post->ID, 'ww_image_author_url', true); if( $ww_image_author_name == '' || $ww_image_author_url == '' ) return $content; return $content . '<p class="ww_image_author"><b>Bild:</b> <a href="'.$ww_image_author_url.'" target="_blank">'.$ww_image_author_name.'</a></p>'; }
Detta verk av Westin Produktion är licensierat under en Creative Commons Erkännande-DelaLika 3.0 Unported-licens.