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Figure 10-5. Advanced forum permissions To set permissions for a specific action, use the drop-down options available underneath each category (View, Read, Post, and so on). The five possible options you can set are described in Table 10-1. Table 10-1. phpBB Permission Options

All users, logged in or not, will be able to use the specified feature. Only registered users who are logged in will be able to use the specified feature. Users or user groups with specific permissions in this forum have access to features marked as private. Moderators and administrators will have access to the feature. Forum administrators will have access to the feature.

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To create your own widget, you need to duplicate the widget class and add your own logic and form fields. Then you just need a few extra lines to register your widget and make it available on the widget manager screen. Listing 8-7 shows a simplified version of my Random Posts from Category plugin (Figure 8-2). For simplicity s sake, I ve removed the extra code required for internationalizing the strings and supporting the the_excerpt Reloaded plugin as well as the built-in the_excerpt() function. Other than that, this really is the whole plugin. If you want, you can flip ahead to the next chapter and see how to set up the comment block necessary to use this as a plugin. Otherwise, paste this into your theme s functions.php file, and you ll see a new widget available under Appearance Widgets. The things that are unique to this widget are shown in bold.

After setting the permissions you want, click Submit, and your changes will be successfully applied. You can test your permissions by logging out and logging back in as a normal user.

When setting permissions on your forums, it s a great idea to have a generic user account and a Tip

Figure 8-2. The Random Posts from Category widget manager and output in the Twenty Ten theme Listing 8-7. The Random Posts from Category widget class RandomPostsFromCategory extends WP_Widget { function RandomPostsFromCategory() { $widget_ops = array('classname' => 'random_from_cat', 'description' => 'random posts from a chosen category'); $this->WP_Widget('RandomPostsFromCategory', 'Random Posts from Category', $widget_ops); } function widget( $args, $instance ) { extract( $args );

moderator account for testing your permissions. Since having administrative rights trumps all permissions, you need to have a way to get some idea of what to expect when other users and moderators interact with your forum.

Drupal offers two types of file downloading methods: Public downloading: This means that the job of serving uploaded files to the browser falls on the underlying web server, which will serve them directly. Web servers are carefully optimized to be able to serve static resources like files in a very efficient way. This will always be the fastest method for offering downloads. The ramification is that the files must reside in a directory that is visible from the Web. Putting files in a Web-visible

$title = apply_filters('widget_title', empty( $instance['title'] ) 'Random Posts' : $instance['title']); echo $before_widget; if ( $title) { if ($instance['postlink'] == 1) { $before_title .= '<a href="'.get_category_link($instance['cat']).'">'; $after_title = '</a>'.$after_title; } echo $before_title.$title.$after_title; } > <ul> < php query_posts("cat=".$instance['cat']."&showposts=".$instance['showposts']."&orderby=r and"); // the Loop if (have_posts()) : while (have_posts()) : the_post(); > <li><a href="< php the_permalink(); >" title="< php the_title_attribute(); >">< php the_title(); ></a> < php if ($instance['content'] == 'excerpt') the_excerpt(); elseif ($instance['content'] == 'content') the_content(); endwhile; endif; > </ul> < php echo $after_widget; wp_reset_query(); } function update( $new_instance, $old_instance ) { $instance = $old_instance; $instance['title'] = strip_tags($new_instance['title']); $instance['cat'] = $new_instance['cat']; $instance['showposts'] = $new_instance['showposts']; $instance['content'] = $new_instance['content']; $instance['postlink'] = $new_instance['postlink']; return $instance; } function form( $instance ) { //Defaults $instance = wp_parse_args( (array) $instance, array( 'title' => 'Random Posts', 'cat' => 1, 'showposts' => 1,

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