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Øyvind Bakkeli committed 2011-07-02 16:20:45 +02:00
commit 5b27f5079e
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wp-content/plugins/category-posts/cat-posts.php
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<?php
/*
Plugin Name: Category Posts Widget
Plugin URI: http://jameslao.com/2011/03/24/category-posts-widget-3-2/
Description: Adds a widget that can display posts from a single category.
Author: James Lao
Version: 3.2
Author URI: http://jameslao.com/
*/
// Register thumbnail sizes.
if ( function_exists('add_image_size') )
{
$sizes = get_option('jlao_cat_post_thumb_sizes');
if ( $sizes )
{
foreach ( $sizes as $id=>$size )
add_image_size( 'cat_post_thumb_size' . $id, $size[0], $size[1], true );
}
}
class CategoryPosts extends WP_Widget {
function CategoryPosts() {
parent::WP_Widget(false, $name='Category Posts');
}
/**
* Displays category posts widget on blog.
*/
function widget($args, $instance) {
global $post;
$post_old = $post; // Save the post object.
extract( $args );
$sizes = get_option('jlao_cat_post_thumb_sizes');
// If not title, use the name of the category.
if( !$instance["title"] ) {
$category_info = get_category($instance["cat"]);
$instance["title"] = $category_info->name;
}
$valid_sort_orders = array('date', 'title', 'comment_count', 'random');
if ( in_array($instance['sort_by'], $valid_sort_orders) ) {
$sort_by = $instance['sort_by'];
$sort_order = (bool) $instance['asc_sort_order'] ? 'ASC' : 'DESC';
} else {
// by default, display latest first
$sort_by = 'date';
$sort_order = 'DESC';
}
// Get array of post info.
$cat_posts = new WP_Query(
"showposts=" . $instance["num"] .
"&cat=" . $instance["cat"] .
"&orderby=" . $sort_by .
"&order=" . $sort_order
);
// Excerpt length filter
$new_excerpt_length = create_function('$length', "return " . $instance["excerpt_length"] . ";");
if ( $instance["excerpt_length"] > 0 )
add_filter('excerpt_length', $new_excerpt_length);
echo $before_widget;
// Widget title
echo $before_title;
if( $instance["title_link"] )
echo '<a href="' . get_category_link($instance["cat"]) . '">' . $instance["title"] . '</a>';
else
echo $instance["title"];
echo $after_title;
// Post list
echo "<ul>\n";
while ( $cat_posts->have_posts() )
{
$cat_posts->the_post();
?>
<li class="cat-post-item">
<a class="post-title" href="<?php the_permalink(); ?>" rel="bookmark" title="Permanent link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a>
<?php
if (
function_exists('the_post_thumbnail') &&
current_theme_supports("post-thumbnails") &&
$instance["thumb"] &&
has_post_thumbnail()
) :
?>
<a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>">
<?php the_post_thumbnail( 'cat_post_thumb_size'.$this->id ); ?>
</a>
<?php endif; ?>
<?php if ( $instance['date'] ) : ?>
<p class="post-date"><?php the_time("j M Y"); ?></p>
<?php endif; ?>
<?php if ( $instance['excerpt'] ) : ?>
<?php the_excerpt(); ?>
<?php endif; ?>
<?php if ( $instance['comment_num'] ) : ?>
<p class="comment-num">(<?php comments_number(); ?>)</p>
<?php endif; ?>
</li>
<?php
}
echo "</ul>\n";
echo $after_widget;
remove_filter('excerpt_length', $new_excerpt_length);
$post = $post_old; // Restore the post object.
}
/**
* Form processing... Dead simple.
*/
function update($new_instance, $old_instance) {
/**
* Save the thumbnail dimensions outside so we can
* register the sizes easily. We have to do this
* because the sizes must registered beforehand
* in order for WP to hard crop images (this in
* turn is because WP only hard crops on upload).
* The code inside the widget is executed only when
* the widget is shown so we register the sizes
* outside of the widget class.
*/
if ( function_exists('the_post_thumbnail') )
{
$sizes = get_option('jlao_cat_post_thumb_sizes');
if ( !$sizes ) $sizes = array();
$sizes[$this->id] = array($new_instance['thumb_w'], $new_instance['thumb_h']);
update_option('jlao_cat_post_thumb_sizes', $sizes);
}
return $new_instance;
}
/**
* The configuration form.
*/
function form($instance) {
?>
<p>
<label for="<?php echo $this->get_field_id("title"); ?>">
<?php _e( 'Title' ); ?>:
<input class="widefat" id="<?php echo $this->get_field_id("title"); ?>" name="<?php echo $this->get_field_name("title"); ?>" type="text" value="<?php echo esc_attr($instance["title"]); ?>" />
</label>
</p>
<p>
<label>
<?php _e( 'Category' ); ?>:
<?php wp_dropdown_categories( array( 'name' => $this->get_field_name("cat"), 'selected' => $instance["cat"] ) ); ?>
</label>
</p>
<p>
<label for="<?php echo $this->get_field_id("num"); ?>">
<?php _e('Number of posts to show'); ?>:
<input style="text-align: center;" id="<?php echo $this->get_field_id("num"); ?>" name="<?php echo $this->get_field_name("num"); ?>" type="text" value="<?php echo absint($instance["num"]); ?>" size='3' />
</label>
</p>
<p>
<label for="<?php echo $this->get_field_id("sort_by"); ?>">
<?php _e('Sort by'); ?>:
<select id="<?php echo $this->get_field_id("sort_by"); ?>" name="<?php echo $this->get_field_name("sort_by"); ?>">
<option value="date"<?php selected( $instance["sort_by"], "date" ); ?>>Date</option>
<option value="title"<?php selected( $instance["sort_by"], "title" ); ?>>Title</option>
<option value="comment_count"<?php selected( $instance["sort_by"], "comment_count" ); ?>>Number of comments</option>
<option value="random"<?php selected( $instance["sort_by"], "random" ); ?>>Random</option>
</select>
</label>
</p>
<p>
<label for="<?php echo $this->get_field_id("asc_sort_order"); ?>">
<input type="checkbox" class="checkbox"
id="<?php echo $this->get_field_id("asc_sort_order"); ?>"
name="<?php echo $this->get_field_name("asc_sort_order"); ?>"
<?php checked( (bool) $instance["asc_sort_order"], true ); ?> />
<?php _e( 'Reverse sort order (ascending)' ); ?>
</label>
</p>
<p>
<label for="<?php echo $this->get_field_id("title_link"); ?>">
<input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id("title_link"); ?>" name="<?php echo $this->get_field_name("title_link"); ?>"<?php checked( (bool) $instance["title_link"], true ); ?> />
<?php _e( 'Make widget title link' ); ?>
</label>
</p>
<p>
<label for="<?php echo $this->get_field_id("excerpt"); ?>">
<input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id("excerpt"); ?>" name="<?php echo $this->get_field_name("excerpt"); ?>"<?php checked( (bool) $instance["excerpt"], true ); ?> />
<?php _e( 'Show post excerpt' ); ?>
</label>
</p>
<p>
<label for="<?php echo $this->get_field_id("excerpt_length"); ?>">
<?php _e( 'Excerpt length (in words):' ); ?>
</label>
<input style="text-align: center;" type="text" id="<?php echo $this->get_field_id("excerpt_length"); ?>" name="<?php echo $this->get_field_name("excerpt_length"); ?>" value="<?php echo $instance["excerpt_length"]; ?>" size="3" />
</p>
<p>
<label for="<?php echo $this->get_field_id("comment_num"); ?>">
<input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id("comment_num"); ?>" name="<?php echo $this->get_field_name("comment_num"); ?>"<?php checked( (bool) $instance["comment_num"], true ); ?> />
<?php _e( 'Show number of comments' ); ?>
</label>
</p>
<p>
<label for="<?php echo $this->get_field_id("date"); ?>">
<input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id("date"); ?>" name="<?php echo $this->get_field_name("date"); ?>"<?php checked( (bool) $instance["date"], true ); ?> />
<?php _e( 'Show post date' ); ?>
</label>
</p>
<?php if ( function_exists('the_post_thumbnail') && current_theme_supports("post-thumbnails") ) : ?>
<p>
<label for="<?php echo $this->get_field_id("thumb"); ?>">
<input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id("thumb"); ?>" name="<?php echo $this->get_field_name("thumb"); ?>"<?php checked( (bool) $instance["thumb"], true ); ?> />
<?php _e( 'Show post thumbnail' ); ?>
</label>
</p>
<p>
<label>
<?php _e('Thumbnail dimensions'); ?>:<br />
<label for="<?php echo $this->get_field_id("thumb_w"); ?>">
W: <input class="widefat" style="width:40%;" type="text" id="<?php echo $this->get_field_id("thumb_w"); ?>" name="<?php echo $this->get_field_name("thumb_w"); ?>" value="<?php echo $instance["thumb_w"]; ?>" />
</label>
<label for="<?php echo $this->get_field_id("thumb_h"); ?>">
H: <input class="widefat" style="width:40%;" type="text" id="<?php echo $this->get_field_id("thumb_h"); ?>" name="<?php echo $this->get_field_name("thumb_h"); ?>" value="<?php echo $instance["thumb_h"]; ?>" />
</label>
</label>
</p>
<?php endif; ?>
<?php
}
}
add_action( 'widgets_init', create_function('', 'return register_widget("CategoryPosts");') );
?>