450 lines
16 KiB
PHP
450 lines
16 KiB
PHP
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<?php
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//-----------------------------------------------------------------------------
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/*
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Plugin Name: Related Posts
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Version: 0.1
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Plugin URI: http://www.rene-ade.de/inhalte/wordpress-plugin-relatedposts.html
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Description: This wordpress plugin provides tagcloud that shows the related posts of a post, and can replace a keyword within a post to a list of related posts.
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Author: René Ade
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Author URI: http://www.rene-ade.de
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Min WP Version: 2.3
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*/
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//-----------------------------------------------------------------------------
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?>
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<?php
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/*
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PUBLIC FUNCTIONS:
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rp_related_posts( $args ) displays related posts of the current post
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ARGS:
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'limit' => 5, // limit number of related posts to display
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'title' => '', // the title
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'beforeposts' => '', 'afterposts' => '', // text before and after the list
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'eachpost' => '<li><a href="%permalink%">%title%</a></li>', // for each related post
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'noposts' => '' // can be a string to display if there are no related posts
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*/
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//-----------------------------------------------------------------------------
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// get related posts
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function rp_get_related_posts( $post, $limit ) {
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global $wpdb; // wordpress database access
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// limit has to be a number
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$limit = (int)$limit;
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// get tags of the post
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$tags = wp_get_post_tags( $post->ID );
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if( is_wp_error($tags) )
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return false; // error
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if( count($tags)<=0 ) // we cannot get related posts without tags
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return array(); // no related posts
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// get term ids
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$termids = array();
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foreach( $tags as $tag ) {
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$termids[ $tag->term_id ] = $tag->term_id;
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}
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if( count($termids)<=0 ) // we cannot get related posts without the termids
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return array(); // no related posts
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// the query to get the related posts
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$query = "SELECT DISTINCT $wpdb->posts.*, COUNT( tr.object_id) AS cnt " // get posts and count
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."FROM $wpdb->term_taxonomy tt, $wpdb->term_relationships tr, $wpdb->posts "
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."WHERE 1 "
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."AND tt.taxonomy = 'post_tag' " // search for tags
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."AND tt.term_taxonomy_id = tr.term_taxonomy_id " // get relations
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."AND tr.object_id = $wpdb->posts.ID " // get posts
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."AND tt.term_id IN( ".implode(',',$termids)." ) " // only with the same tags
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."AND $wpdb->posts.ID != $post->ID " // only other posts, not the post selfe
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."AND $wpdb->posts.post_status = 'publish' " // only published posts
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."GROUP BY tr.object_id " // group by relation
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."ORDER BY cnt DESC, $wpdb->posts.post_date_gmt DESC " // order by count best matches first, if same order by date
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."LIMIT $limit "; // get only the top x
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// run the query and return the result
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return $wpdb->get_results( $query );
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}
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//-----------------------------------------------------------------------------
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// replace placeholders
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function rp_replace_placeholders( $post, $string ) {
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// replace placeholders
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$string = str_replace( '%title%',
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get_the_title($post->ID), $string );
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$string = str_replace( '%permalink%',
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get_permalink($post->ID), $string );
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// return
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return $string;
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}
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//-----------------------------------------------------------------------------
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// get related posts of a post as string
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function rp_getstring_related_posts( $post, $args ) {
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// args
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$defaults = array(
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'limit' => 3, // limit number of related posts to display
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'title' => '', // the title
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'beforeposts' => '', 'afterposts' => '', // text before and after the list
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'eachpost' => '<li><a href="%permalink%">%title%</a></li>', // for each related post
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'noposts' => '' // can be a string to display if there are no related posts
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);
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$args = wp_parse_args( $args, $defaults );
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// no posts string
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$noposts = '';
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if( strlen($args['noposts'])>0 ) {
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$noposts = rp_replace_placeholders( $post, $args['title'] )
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.rp_replace_placeholders( $post, $args['noposts'] );
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}
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// get related posts
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$relatedposts = rp_get_related_posts( $post, $args['limit'] );
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if( is_wp_error($relatedposts) || !is_array($relatedposts) )
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return $noposts;
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// print only if there are related posts
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if( count($relatedposts)<=0 )
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return $noposts;
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// the string
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$string = '';
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// print title and before
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$string.= rp_replace_placeholders( $post, $args['title'] );
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$string.= rp_replace_placeholders( $post, $args['beforeposts'] );
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// print related posts
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foreach( $relatedposts as $relatedpost ) {
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$string.= rp_replace_placeholders( $relatedpost, $args['eachpost'] );
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}
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// print after
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$string.= rp_replace_placeholders( $post, $args['afterposts'] );
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// return string
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return $string;
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}
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// output related posts of post
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function rp_print_related_posts( $post, $args ) {
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// display if there is something to display
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$string = rp_getstring_related_posts( $post, $args );
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if( strlen($string)>0 )
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echo $string;
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// output done
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return;
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}
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//-----------------------------------------------------------------------------
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// output related posts for the current post
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function rp_related_posts( $title, $args=null ) {
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global $post;
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if( !is_array($args) )
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$args = array();
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$args['title'] = $title;
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rp_print_related_posts( $post, $args );
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}
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//-----------------------------------------------------------------------------
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// find the post content relatedposts placeholder
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function rp_filter_the_content( $content ) {
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global $post; // the current post
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// replace placeholders
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$content = str_replace( '%RELATEDPOSTS%', rp_getstring_related_posts($post,array()), $content );
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return $content;
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}
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//-----------------------------------------------------------------------------
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// the sidebar widget
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function rp_widget( $args ) {
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global $post; // the current post
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// check if viewing a post
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if( !is_single() ) // show widget only on post page
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return;
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// comment // if you dont like this comment, you may remove it :-(
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echo '<!-- ';
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echo 'WordPress Plugin RelatedPosts by Ren<65> Ade';
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echo ' - ';
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echo 'http://www.rene-ade.de/inhalte/wordpress-plugin-relatedposts.html';
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echo ' -->';
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// args
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extract( $args ); // extract args
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// options
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$options = get_option( 'rp_widget' ); // get options
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// get related posts string
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$relatedposts_string = rp_getstring_related_posts( $post, $options['args'] );
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if( strlen($relatedposts_string)<=0 )
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return; // nothing to display
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echo $before_widget;
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echo $before_title . $options['title'] . $after_title;
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echo $relatedposts_string;
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echo $after_widget;
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// output done
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return;
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}
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function rp_widget_control() {
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// options
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$options = $newoptions = get_option('rp_widget'); // get options
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// set new options
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if( $_POST['rp-widget-submit'] ) {
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$newoptions['title'] = strip_tags( stripslashes($_POST['rp-widget-title']) );
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$newoptions['args']['beforeposts'] = stripslashes( $_POST['rp-widget-args-beforeposts'] );
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$newoptions['args']['afterposts'] = stripslashes( $_POST['rp-widget-args-afterposts'] );
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$newoptions['args']['eachpost'] = stripslashes( $_POST['rp-widget-args-eachpost'] );
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$newoptions['args']['noposts'] = stripslashes( $_POST['rp-widget-args-noposts'] );
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$newoptions['args']['limit'] = (int) $_POST['rp-widget-args-limit'];
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}
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// update options if needed
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if( $options != $newoptions ) {
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$options = $newoptions;
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update_option('rp_widget', $options);
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}
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// output
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echo '<p>'._e('This widget only appears on post pages!').'</p>';
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echo '<p>'._e('Title');
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echo '<input type="text" style="width:300px" id="rp-widget-title" name="rp-widget-title" value="'.attribute_escape($options['title']).'" />'.'<br />';
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echo '</p>';
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echo '<p>'._e('Postlist');
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echo '<input type="text" style="width:300px" id="rp-widget-args-limit" name="rp-widget-args-limit" value="'.$options['args']['limit'].'" />'._e('Number of related posts to display').'<br />';
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echo '<input type="text" style="width:300px" id="rp-widget-args-beforeposts" name="rp-widget-args-beforeposts" value="'.attribute_escape($options['args']['beforeposts']).'" />'._e('Output before postlist').'<br />';
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echo '<input type="text" style="width:300px" id="rp-widget-args-afterposts" name="rp-widget-args-afterposts" value="'.attribute_escape($options['args']['afterposts']).'" />'._e('Output after postlist').'<br />';
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echo '<input type="text" style="width:300px" id="rp-widget-args-eachpost" name="rp-widget-args-eachpost" value="'.attribute_escape($options['args']['eachpost']).'" />'._e('Output for each related post').'<br />';
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echo '</p>';
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echo '<p>'._e('Widget');
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echo '<input type="text" style="width:300px" id="rp-widget-args-noposts" name="rp-widget-args-noposts" value="'.attribute_escape($options['args']['noposts']).'" />'._e('Output if there are no related posts. Leave blank to hide the Widget if there are no posts to display.').'<br />';
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echo '</p>';
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echo '<input type="hidden" name="rp-widget-submit" id="rp-widget-submit" value="1" />';
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}
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//-----------------------------------------------------------------------------
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// activate and deactivate plugin
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function rp_activate() {
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// options, defaultvalues
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$options = array(
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'widget' => array(
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'title' => 'Related Posts',
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'args' => array(
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'limit' => 3,
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'beforeposts' => '<ul>', 'afterposts' => '</ul>',
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'eachpost' => '<li><a href="%permalink%">%title%</a></li>',
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'noposts' => ''
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)
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)
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);
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// register option
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add_option( 'rp_widget', $options['widget'] );
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// activeted
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return;
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}
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function rp_deactivate() {
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// unregister option
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delete_option('rp_widget');
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// deactivated
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return;
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}
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// initialization
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function rp_init() {
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// register widget
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$class['classname'] = 'rp_widget';
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wp_register_sidebar_widget('related_posts', __('Related Posts'), 'rp_widget', $class);
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wp_register_widget_control('related_posts', __('Related Posts'), 'rp_widget_control', 'width=300&height=500');
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// initialization done
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return;
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}
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//-----------------------------------------------------------------------------
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// actions
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add_action( 'activate_'.plugin_basename(__FILE__), 'rp_activate' );
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add_action( 'deactivate_'.plugin_basename(__FILE__), 'rp_deactivate' );
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add_action( 'init', 'rp_init');
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// filter text to replace relatedposts placeholder
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add_filter( 'the_content', 'rp_filter_the_content', 5 );
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add_filter( 'the_content_rss', 'rp_filter_the_content', 5 );
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add_filter( 'the_excerpt', 'rp_filter_the_content', 5 );
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add_filter( 'the_excerpt_rss', 'rp_filter_the_content', 5 );
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add_filter( 'widget_text', 'rp_filter_the_content', 5 );
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//-----------------------------------------------------------------------------
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/*
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Plugin Name: WP-PageNavi
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Plugin URI: http://www.lesterchan.net/portfolio/programming.php
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*/
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function wp_pagenavi($before = '', $after = '') {
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global $wpdb, $wp_query;
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if (!is_single()) {
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$request = $wp_query->request;
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$posts_per_page = intval(get_query_var('posts_per_page'));
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$paged = intval(get_query_var('paged'));
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$pagenavi_options = get_option('pagenavi_options');
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$numposts = $wp_query->found_posts;
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$max_page = $wp_query->max_num_pages;
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/*
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$numposts = 0;
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if(strpos(get_query_var('tag'), " ")) {
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preg_match('#^(.*)\sLIMIT#siU', $request, $matches);
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$fromwhere = $matches[1];
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$results = $wpdb->get_results($fromwhere);
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$numposts = count($results);
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} else {
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preg_match('#FROM\s*+(.+?)\s+(GROUP BY|ORDER BY)#si', $request, $matches);
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$fromwhere = $matches[1];
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$numposts = $wpdb->get_var("SELECT COUNT(DISTINCT ID) FROM $fromwhere");
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}
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$max_page = ceil($numposts/$posts_per_page);
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*/
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if(empty($paged) || $paged == 0) {
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$paged = 1;
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}
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$pages_to_show = intval($pagenavi_options['num_pages']);
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$pages_to_show_minus_1 = $pages_to_show-1;
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$half_page_start = floor($pages_to_show_minus_1/2);
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$half_page_end = ceil($pages_to_show_minus_1/2);
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$start_page = $paged - $half_page_start;
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|
|
if($start_page <= 0) {
|
|||
|
|
$start_page = 1;
|
|||
|
|
}
|
|||
|
|
$end_page = $paged + $half_page_end;
|
|||
|
|
if(($end_page - $start_page) != $pages_to_show_minus_1) {
|
|||
|
|
$end_page = $start_page + $pages_to_show_minus_1;
|
|||
|
|
}
|
|||
|
|
if($end_page > $max_page) {
|
|||
|
|
$start_page = $max_page - $pages_to_show_minus_1;
|
|||
|
|
$end_page = $max_page;
|
|||
|
|
}
|
|||
|
|
if($start_page <= 0) {
|
|||
|
|
$start_page = 1;
|
|||
|
|
}
|
|||
|
|
if($max_page > 1 || intval($pagenavi_options['always_show']) == 1) {
|
|||
|
|
$pages_text = str_replace("%CURRENT_PAGE%", number_format_i18n($paged), $pagenavi_options['pages_text']);
|
|||
|
|
$pages_text = str_replace("%TOTAL_PAGES%", number_format_i18n($max_page), $pages_text);
|
|||
|
|
echo $before.'<div class="wp-pagenavi">'."\n";
|
|||
|
|
switch(intval($pagenavi_options['style'])) {
|
|||
|
|
case 1:
|
|||
|
|
if(!empty($pages_text)) {
|
|||
|
|
echo '<span class="pages"> '.$pages_text.' </span>';
|
|||
|
|
}
|
|||
|
|
if ($start_page >= 2 && $pages_to_show < $max_page) {
|
|||
|
|
$first_page_text = str_replace("%TOTAL_PAGES%", number_format_i18n($max_page), $pagenavi_options['first_text']);
|
|||
|
|
echo '<a href="'.clean_url(get_pagenum_link()).'" title="'.$first_page_text.'"> '.$first_page_text.' </a>';
|
|||
|
|
if(!empty($pagenavi_options['dotleft_text'])) {
|
|||
|
|
echo '<span class="extend"> '.$pagenavi_options['dotleft_text'].' </span>';
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
previous_posts_link($pagenavi_options['prev_text']);
|
|||
|
|
for($i = $start_page; $i <= $end_page; $i++) {
|
|||
|
|
if($i == $paged) {
|
|||
|
|
$current_page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($i), $pagenavi_options['current_text']);
|
|||
|
|
echo '<span class="current"> '.$current_page_text.' </span>';
|
|||
|
|
} else {
|
|||
|
|
$page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($i), $pagenavi_options['page_text']);
|
|||
|
|
echo '<a href="'.clean_url(get_pagenum_link($i)).'" title="'.$page_text.'"> '.$page_text.' </a>';
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
next_posts_link($pagenavi_options['next_text'], $max_page);
|
|||
|
|
if ($end_page < $max_page) {
|
|||
|
|
if(!empty($pagenavi_options['dotright_text'])) {
|
|||
|
|
echo '<span class="extend"> '.$pagenavi_options['dotright_text'].' </span>';
|
|||
|
|
}
|
|||
|
|
$last_page_text = str_replace("%TOTAL_PAGES%", number_format_i18n($max_page), $pagenavi_options['last_text']);
|
|||
|
|
echo '<a href="'.clean_url(get_pagenum_link($max_page)).'" title="'.$last_page_text.'"> '.$last_page_text.' </a>';
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
case 2;
|
|||
|
|
echo '<form action="'.htmlspecialchars($_SERVER['PHP_SELF']).'" method="get">'."\n";
|
|||
|
|
echo '<select size="1" onchange="document.location.href = this.options[this.selectedIndex].value;">'."\n";
|
|||
|
|
for($i = 1; $i <= $max_page; $i++) {
|
|||
|
|
$page_num = $i;
|
|||
|
|
if($page_num == 1) {
|
|||
|
|
$page_num = 0;
|
|||
|
|
}
|
|||
|
|
if($i == $paged) {
|
|||
|
|
$current_page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($i), $pagenavi_options['current_text']);
|
|||
|
|
echo '<option value="'.clean_url(get_pagenum_link($page_num)).'" selected="selected" class="current">'.$current_page_text."</option>\n";
|
|||
|
|
} else {
|
|||
|
|
$page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($i), $pagenavi_options['page_text']);
|
|||
|
|
echo '<option value="'.clean_url(get_pagenum_link($page_num)).'">'.$page_text."</option>\n";
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
echo "</select>\n";
|
|||
|
|
echo "</form>\n";
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
echo '</div>'.$after."\n";
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
add_action('init', 'pagenavi_init');
|
|||
|
|
function pagenavi_init() {
|
|||
|
|
// Add Options
|
|||
|
|
$pagenavi_options = array();
|
|||
|
|
$pagenavi_options['current_text'] = '%PAGE_NUMBER%';
|
|||
|
|
$pagenavi_options['page_text'] = '%PAGE_NUMBER%';
|
|||
|
|
$pagenavi_options['first_text'] = __('« First','wp-pagenavi');
|
|||
|
|
$pagenavi_options['last_text'] = __('Last »','wp-pagenavi');
|
|||
|
|
$pagenavi_options['next_text'] = __('»','wp-pagenavi');
|
|||
|
|
$pagenavi_options['prev_text'] = __('«','wp-pagenavi');
|
|||
|
|
$pagenavi_options['dotright_text'] = __('...','wp-pagenavi');
|
|||
|
|
$pagenavi_options['dotleft_text'] = __('...','wp-pagenavi');
|
|||
|
|
$pagenavi_options['style'] = 1;
|
|||
|
|
$pagenavi_options['num_pages'] = 5;
|
|||
|
|
$pagenavi_options['always_show'] = 0;
|
|||
|
|
add_option('pagenavi_options', $pagenavi_options, 'PageNavi Options');
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Show menu in header.php
|
|||
|
|
// Exlude the pages from the slider
|
|||
|
|
function woo_exclude_pages() {
|
|||
|
|
|
|||
|
|
$exclude = '';
|
|||
|
|
$exclude = $exclude . get_option( 'woo_tabber_pages' ) . ',' . get_option( 'woo_intro_page' ) . ',' . get_option( 'woo_intro_page_left' ) . ',' . get_option( 'woo_intro_page_right' );
|
|||
|
|
return $exclude;
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*-----------------------------------------------------------------------------------*/
|
|||
|
|
/* WordPress 3.0 New Features Support */
|
|||
|
|
/*-----------------------------------------------------------------------------------*/
|
|||
|
|
|
|||
|
|
if ( function_exists('wp_nav_menu') ) {
|
|||
|
|
add_theme_support( 'nav-menus' );
|
|||
|
|
register_nav_menus( array( 'primary-menu' => __( 'Primary Menu' ) ) );
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
?>
|