/**
* Returns a random image from one of the blogs on the site.
*
* The returned image object, if not null, will have the following properties:
*
* blog_id - the ID of the blog on which the image was posted
* title - the image's title
* url - the absolute URL to the image
*
* If the image is associated with a particular post, it will also have
* the following properties on it:
*
* post_id - the ID of the post that uses the image
* user_id - the ID of the user who created a post using the image
*
* @return mixed the random image object, or null if none can be found
*
* @since 0.1
*/
public function get_random_image()
{
global $blog_id, $nxtdb;
$current_blog_id = $blog_id;
$image = null;
$urls = array();
// Search through every blog for a usable image. If an image is found, build
// the link to it and add a possible caption.
$blogs = ClassBlogs_Utils::get_all_blog_ids();
shuffle($blogs);
foreach ($blogs as $blog) {
ClassBlogs_NXTClass::switch_to_blog($blog);
$images = $nxtdb->get_results("\n\t\t\t\tSELECT ID, post_title, GUID FROM {$nxtdb->posts}\n\t\t\t\tWHERE post_mime_type LIKE 'image/%%'\n\t\t\t\tAND post_content <> guid");
if ($images) {
$image = $images[array_rand($images)];
$urls[] = $image->GUID;
$info = nxt_get_attachment_image_src($image->ID);
if (!empty($info)) {
$image = array('blog_id' => $blog, 'title' => $image->post_title, 'url' => $info[0]);
$urls[] = $info[0];
}
break;
}
}
ClassBlogs_Utils::restore_blog($current_blog_id);
// If we have a valid image, try to find the first post on which it was
// used and add its ID to the image data
if ($image) {
$info = array();
$post_id = null;
$user_id = null;
foreach ($urls as $url) {
$post = $this->_find_first_post_to_use_image($image['blog_id'], $url);
if (!empty($post)) {
break;
}
}
if (!empty($post)) {
$post_id = $post->ID;
$user_id = $post->post_author;
}
$image['post_id'] = $post_id;
$image['user_id'] = $user_id;
$image = (object) $image;
}
return $image;
}
/**
* Renders the student-only page showing all a list of all comments that
* they have left on other blogs on the site.
*
* @access private
* @since 0.2
*/
public function _student_admin_page()
{
global $blog_id;
$current_blog_id = $blog_id;
$student_id = nxt_get_current_user()->ID;
// Create a lookup table for blog names and URLs
$all_blogs = array();
foreach (ClassBlogs_Utils::get_all_blog_ids() as $blog_id) {
$all_blogs[$blog_id] = array('name' => ClassBlogs_NXTClass::get_blog_option($blog_id, 'blogname'), 'url' => ClassBlogs_NXTClass::get_blogaddress_by_id($blog_id));
}
// Paginate the data, restricting the data set to only comments that the
// current student wrote
$comments = array();
foreach ($this->get_sitewide_comments(false) as $comment) {
if ((int) $comment->user_id === $student_id) {
$comments[] = $comment;
}
}
$paginator = new ClassBlogs_Paginator($comments, self::COMMENTS_PER_ADMIN_PAGE);
$current_page = array_key_exists('paged', $_GET) ? absint($_GET['paged']) : 1;
?>
<div class="wrap">
<div id="icon-edit-comments" class="icon32"></div>
<h2><?php
_e('My Comments', 'classblogs');
?>
</h2>
<p>
<?php
_e("This page allows you to view all of the comments that you have left on other students' blogs.", 'classblogs');
?>
</p>
<?php
$paginator->show_admin_page_links($current_page);
?>
<table class="widefat cb-sw-comments-table" id="cb-sw-my-comments-list">
<thead>
<tr>
<th class="blog"><?php
_e('Blog', 'classblogs');
?>
</th>
<th class="post"><?php
_e('Post', 'classblogs');
?>
</th>
<th class="content"><?php
_e('Content', 'classblogs');
?>
</th>
<th class="status"><?php
_e('Status', 'classblogs');
?>
</th>
<th class="posted"><?php
_e('Date', 'classblogs');
?>
</th>
</tr>
</thead>
<tfoot>
<tr>
<th class="blog"><?php
_e('Blog', 'classblogs');
?>
</th>
<th class="post"><?php
_e('Post', 'classblogs');
?>
</th>
<th class="content"><?php
_e('Content', 'classblogs');
?>
</th>
<th class="status"><?php
_e('Status', 'classblogs');
?>
</th>
<th class="posted"><?php
_e('Date', 'classblogs');
?>
</th>
</tr>
</tfoot>
<tbody>
<?php
foreach ($paginator->get_items_for_page($current_page) as $comment) {
ClassBlogs_NXTClass::switch_to_blog($comment->cb_sw_blog_id);
$status = nxt_get_comment_status($comment->comment_ID);
?>
<tr class="<?php
echo $status;
?>
">
<td class="blog">
<strong>
<?php
printf('<a href="%s">%s</a>', esc_url($all_blogs[$comment->cb_sw_blog_id]['url']), esc_html($all_blogs[$comment->cb_sw_blog_id]['name']));
?>
</strong>
</td>
<td class="post">
<strong>
<?php
printf('<a href="%s">%s</a>', esc_url(get_comment_link($comment)), esc_html($comment->post_title));
?>
</strong>
</td>
<td class="content">
<?php
comment_text($comment->comment_ID);
?>
</td>
<td class="status">
<?php
if ($status == 'approved') {
_e('Approved', 'classblogs');
} elseif ($status == 'deleted' || $status == 'trash') {
_e('Deleted', 'classblogs');
} elseif ($status == 'spam') {
_e('Spam', 'classblogs');
} elseif ($status == 'unapproved') {
_e('Unapproved', 'classblogs');
} else {
_e('Unknown', 'classblogs');
}
?>
</td>
<td class="posted">
<?php
printf('<span class="date">%s</span> <span class="time">%s</span>', mysql2date(get_option('date_format'), $comment->comment_date), mysql2date(get_option('time_format'), $comment->comment_date));
?>
</td>
</tr>
<?php
}
ClassBlogs_Utils::restore_blog($current_blog_id);
?>
</tbody>
</table>
<?php
$paginator->show_admin_page_links($current_page, 'bottom');
?>
</div>
<?php
}
/**
* Handles the admin page logic for the plugin.
*
* @access private
* @since 0.1
*/
public function _admin_page()
{
// Perform an update action of some sort
if ($_POST) {
check_admin_referer($this->get_uid());
// If we're just refreshing the sitewide data, do so now
if (array_key_exists('Refresh', $_POST)) {
$synced = $this->_create_tables();
if (!$synced) {
$this->_sync_tables();
}
ClassBlogs_Admin::show_admin_message(__('The sitewide data has been refreshed.', 'classblogs'));
} else {
$this->update_option('excluded_blogs', $this->_parse_excluded_blog_list($_POST));
$this->update_option('aggregation_enabled', $_POST['aggregation_enabled'] == 'enabled');
$this->_sync_tables();
ClassBlogs_Admin::show_admin_message(__('Your options have been updated.', 'classblogs'));
}
}
?>
<div class="wrap">
<?php
ClassBlogs_Admin::show_admin_icon();
?>
<h2><?php
_e('Student Data Options', 'classblogs');
?>
</h2>
<p>
<?php
_e("This page allows you to manage the options for collecting data on posts, comments and tags from your students' blogs.", 'classblogs');
?>
</p>
<form method="post" action="">
<h3><?php
_e('Data Sources', 'classblogs');
?>
</h3>
<table class="form-table">
<tr valign="top">
<th scope="row"><?php
_e('Aggregation Enabled', 'classblogs');
?>
</th>
<td>
<input type="radio" name="aggregation_enabled" id="aggregation-enabled" value="enabled" <?php
if ($this->get_option('aggregation_enabled')) {
?>
checked="checked"<?php
}
?>
/>
<label for="aggregation-enabled"><?php
_e('Enabled', 'classblogs');
?>
</label>
<input style="margin-left: 1em;" type="radio" name="aggregation_enabled" id="aggregation-disabled" value="disabled" <?php
if (!$this->get_option('aggregation_enabled')) {
?>
checked="checked"<?php
}
?>
/>
<label for="aggregation-disabled"><?php
_e('Disabled', 'classblogs');
?>
</label>
</td>
</tr>
<tr valign="top">
<th scope="row"><?php
_e('Excluded Blogs', 'classblogs');
?>
</th>
<td>
<ul>
<?php
// Display a checkbox for every blog, selecting it if the blog is
// currently on the exclusion blacklist
$excluded_blogs = $this->get_option('excluded_blogs');
foreach (ClassBlogs_Utils::get_all_blog_ids() as $blog_id) {
$details = get_blog_details($blog_id, true);
printf('<li><input type="checkbox" id="%1$s" name="%1$s" %2$s /> <label for="%1$s"><strong>%3$s</strong> ( <a href="%4$s">%4$s</a> )</label></li>', 'exclude_blog_' . $blog_id, array_search($blog_id, $excluded_blogs) !== false ? 'checked="checked"' : "", $details->blogname, esc_url($details->siteurl));
}
?>
</ul>
</td>
</tr>
</table>
<h3><?php
_e('Refresh Student Data', 'classblogs');
?>
</h3>
<p><?php
_e(sprintf('If you find that the student data does not accurately reflect the data in each blog, you can click the %1$s button below to rebuild the student data tables.', '<strong>' . __('Refresh Student Data', 'classblogs') . '</strong>'), 'classblogs');
?>
</p>
<?php
nxt_nonce_field($this->get_uid());
?>
<p class="submit">
<input type="submit" class="button-primary" name="Submit" value="<?php
_e('Update Sudent Data Options', 'classblogs');
?>
" />
<input type="submit" name="Refresh" value="<?php
_e('Refresh Student Data', 'classblogs');
?>
" />
</p>
</form>
</div>
<?php
}