WordPress/wp-admin/admin-functions.php

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<?php
function url_shorten ($url) {
$short_url = str_replace('http://', '', stripslashes($url));
$short_url = str_replace('www.', '', $short_url);
if ('/' == substr($short_url, -1))
$short_url = substr($short_url, 0, -1);
if (strlen($short_url) > 35)
$short_url = substr($short_url, 0, 32).'...';
return $short_url;
}
function selected($selected, $current) {
if ($selected == $current) echo ' selected="selected"';
}
function checked($checked, $current) {
if ($checked == $current) echo ' checked="checked"';
}
function return_categories_list( $parent = 0, $sortbyname = FALSE )
{
/*
* This function returns an list of all categories
* that have $parent as their parent
* if no parent is specified we will assume top level caegories
* are required.
*/
global $wpdb;
// select sort order
$sort = "cat_id";
if( TRUE == $sortbyname )
{
$sort = "cat_name";
}
// First query the database
$cats_tmp = $wpdb->get_results("SELECT cat_id FROM $wpdb->categories WHERE category_parent = $parent ORDER BY $sort");
// Now strip this down to a simple array of IDs
$cats = array();
if( count($cats_tmp) > 0 )
{
foreach( $cats_tmp as $cat )
{
$cats[] = $cat->cat_id;
}
}
// Return the list of categories
return $cats;
}
function get_nested_categories($default = 0, $parent = 0) {
global $post_ID, $mode, $wpdb;
if ($post_ID) {
$checked_categories = $wpdb->get_col("
SELECT category_id
FROM $wpdb->categories, $wpdb->post2cat
WHERE $wpdb->post2cat.category_id = cat_ID AND $wpdb->post2cat.post_id = '$post_ID'
");
if(count($checked_categories) == 0)
{
// No selected categories, strange
$checked_categories[] = $default;
}
} else {
$checked_categories[] = $default;
}
$cats = return_categories_list($parent, TRUE);
$result = array();
foreach($cats as $cat)
{
$result[$cat]['children'] = get_nested_categories($default, $cat);
$result[$cat]['cat_ID'] = $cat;
$result[$cat]['checked'] = in_array($cat, $checked_categories);
$result[$cat]['cat_name'] = get_the_category_by_ID($cat);
}
return $result;
}
function write_nested_categories($categories) {
foreach($categories as $category) {
echo '<label for="category-', $category['cat_ID'], '" class="selectit"><input value="', $category['cat_ID'],
'" type="checkbox" name="post_category[]" id="category-', $category['cat_ID'], '"',
($category['checked'] ? ' checked="checked"' : ""), '/> ', htmlspecialchars($category['cat_name']), "</label>\n";
if(isset($category['children'])) {
echo "\n<span class='cat-nest'>\n";
write_nested_categories($category['children']);
echo "</span>\n";
}
}
}
function dropdown_categories($default = 0) {
write_nested_categories(get_nested_categories($default));
}
// Dandy new recursive multiple category stuff.
function cat_rows($parent = 0, $level = 0, $categories = 0) {
global $wpdb, $bgcolor;
if (!$categories) {
$categories = $wpdb->get_results("SELECT * FROM $wpdb->categories ORDER BY cat_name");
}
if ($categories) {
foreach ($categories as $category) {
if ($category->category_parent == $parent) {
$category->cat_name = htmlspecialchars($category->cat_name);
$count = $wpdb->get_var("SELECT COUNT(post_id) FROM $wpdb->post2cat WHERE category_id = $category->cat_ID");
$pad = str_repeat('&#8212; ', $level);
$class = ('alternate' == $class) ? '' : 'alternate';
echo "<tr class='$class'><th scope='row'>$category->cat_ID</th><td>$pad $category->cat_name</td>
<td>$category->category_description</td>
<td>$count</td>
<td><a href='categories.php?action=edit&amp;cat_ID=$category->cat_ID' class='edit'>" . __('Edit') . "</a></td><td><a href='categories.php?action=Delete&amp;cat_ID=$category->cat_ID' onclick=\"return confirm('". sprintf(__("You are about to delete the category \'%s\'. All of its posts will go to the default category.\\n \'OK\' to delete, \'Cancel\' to stop."), addslashes($category->cat_name)) . "')\" class='delete'>" . __('Delete') . "</a></td>
</tr>";
cat_rows($category->cat_ID, $level + 1);
}
}
} else {
return false;
}
}
function wp_dropdown_cats($currentcat, $currentparent = 0, $parent = 0, $level = 0, $categories = 0) {
global $wpdb, $bgcolor;
if (!$categories) {
$categories = $wpdb->get_results("SELECT * FROM $wpdb->categories ORDER BY cat_name");
}
if ($categories) {
foreach ($categories as $category) { if ($currentcat != $category->cat_ID && $parent == $category->category_parent) {
$count = $wpdb->get_var("SELECT COUNT(post_id) FROM $wpdb->post2cat WHERE category_id = $category->cat_ID");
$pad = str_repeat('&#8211; ', $level);
$category->cat_name = htmlspecialchars($category->cat_name);
echo "\n\t<option value='$category->cat_ID'";
if ($currentparent == $category->cat_ID)
echo " selected='selected'";
echo ">$pad$category->cat_name</option>";
wp_dropdown_cats($currentcat, $currentparent, $category->cat_ID, $level + 1, $categories);
} }
} else {
return false;
}
}
function wp_create_thumbnail($file, $max_side, $effect = '') {
// 1 = GIF, 2 = JPEG, 3 = PNG
if(file_exists($file)) {
$type = getimagesize($file);
// if the associated function doesn't exist - then it's not
// handle. duh. i hope.
if(!function_exists('imagegif') && $type[2] == 1) {
$error = __('Filetype not supported. Thumbnail not created.');
}elseif(!function_exists('imagejpeg') && $type[2] == 2) {
$error = __('Filetype not supported. Thumbnail not created.');
}elseif(!function_exists('imagepng') && $type[2] == 3) {
$error = __('Filetype not supported. Thumbnail not created.');
} else {
// create the initial copy from the original file
if($type[2] == 1) {
$image = imagecreatefromgif($file);
} elseif($type[2] == 2) {
$image = imagecreatefromjpeg($file);
} elseif($type[2] == 3) {
$image = imagecreatefrompng($file);
}
if (function_exists('imageantialias'))
imageantialias($image, TRUE);
$image_attr = getimagesize($file);
// figure out the longest side
if($image_attr[0] > $image_attr[1]) {
$image_width = $image_attr[0];
$image_height = $image_attr[1];
$image_new_width = $max_side;
$image_ratio = $image_width/$image_new_width;
$image_new_height = $image_height/$image_ratio;
//width is > height
} else {
$image_width = $image_attr[0];
$image_height = $image_attr[1];
$image_new_height = $max_side;
$image_ratio = $image_height/$image_new_height;
$image_new_width = $image_width/$image_ratio;
//height > width
}
$thumbnail = imagecreatetruecolor($image_new_width, $image_new_height);
@imagecopyresized($thumbnail, $image, 0, 0, 0, 0, $image_new_width, $image_new_height, $image_attr[0], $image_attr[1]);
// move the thumbnail to it's final destination
$path = explode('/', $file);
$thumbpath = substr($file, 0, strrpos($file, '/')) . '/thumb-' . $path[count($path)-1];
if($type[2] == 1) {
if(!imagegif($thumbnail, $thumbpath)) {
$error = __("Thumbnail path invalid");
}
} elseif($type[2] == 2) {
if(!imagejpeg($thumbnail, $thumbpath)) {
$error = __("Thumbnail path invalid");
}
} elseif($type[2] == 3) {
if(!imagepng($thumbnail, $thumbpath)) {
$error = __("Thumbnail path invalid");
}
}
}
}
if(!empty($error))
{
return $error;
}
else
{
return 1;
}
}
// Some postmeta stuff
function has_meta($postid) {
global $wpdb;
return $wpdb->get_results("
SELECT meta_key, meta_value, meta_id, post_id
FROM $wpdb->postmeta
WHERE post_id = '$postid'
ORDER BY meta_key,meta_id",ARRAY_A);
}
function list_meta($meta) {
global $post_ID;
// Exit if no meta
if (!$meta) return;
?>
<table id='meta-list' cellpadding="3">
<tr>
<th><?php _e('Key') ?></th>
<th><?php _e('Value') ?></th>
<th colspan='2'><?php _e('Action') ?></th>
</tr>
<?php
foreach ($meta as $entry) {
$style = ('class="alternate"' == $style) ? '' : 'class="alternate"';
echo "
<tr $style>
<td valign='top'><input name='meta[{$entry['meta_id']}][key]' tabindex='6' type='text' size='20' value='{$entry['meta_key']}' /></td>
<td><textarea name='meta[{$entry['meta_id']}][value]' tabindex='6' rows='2' cols='30'>{$entry['meta_value']}</textarea></td>
<td align='center' width='10%'><input name='updatemeta' type='submit' class='updatemeta' tabindex='6' value='" . __('Update') ."' /></td>
<td align='center' width='10%'><input name='deletemeta[{$entry['meta_id']}]' type='submit' class='deletemeta' tabindex='6' value='" . __('Delete') ."' /></td>
</tr>
";
}
echo "
</table>
";
}
// Get a list of previously defined keys
function get_meta_keys() {
global $wpdb;
$keys = $wpdb->get_col("
SELECT meta_key
FROM $wpdb->postmeta
GROUP BY meta_key
ORDER BY meta_key");
return $keys;
}
function meta_form() {
global $wpdb;
$keys = $wpdb->get_col("
SELECT meta_key
FROM $wpdb->postmeta
GROUP BY meta_key
ORDER BY meta_id DESC
LIMIT 10");
?>
<h3><?php _e('Add a new custom field to this post:') ?></h3>
<table cellspacing="3" cellpadding="3">
<tr>
<th colspan="2"><?php _e('Key') ?></th>
<th><?php _e('Value') ?></th>
</tr>
<tr valign="top">
<td align="right" width="18%">
<?php if ($keys) : ?>
<select id="metakeyselect" name="metakeyselect" tabindex="7">
<option value="#NONE#">- Select -</option>
<?php
foreach($keys as $key) {
echo "\n\t<option value='$key'>$key</option>";
}
?>
</select> or
<?php endif; ?>
</td>
<td><input type="text" id="metakeyinput" name="metakeyinput" tabindex="7" /></td>
<td><textarea id="metavalue" name="metavalue" rows="3" cols="25" tabindex="7"></textarea></td>
</tr>
</table>
<p class="submit"><input type="submit" name="updatemeta" tabindex="7" value="<?php _e('Add Custom Field &raquo;') ?>" /></p>
<?php
}
function add_meta($post_ID) {
global $wpdb;
$metakeyselect = $wpdb->escape( stripslashes( trim($_POST['metakeyselect']) ) );
$metakeyinput = $wpdb->escape( stripslashes( trim($_POST['metakeyinput']) ) );
$metavalue = $wpdb->escape( stripslashes( trim($_POST['metavalue']) ) );
if (!empty($metavalue) && ((('#NONE#' != $metakeyselect) && !empty($metakeyselect)) || !empty($metakeyinput))) {
// We have a key/value pair. If both the select and the
// input for the key have data, the input takes precedence:
if ('#NONE#' != $metakeyselect)
$metakey = $metakeyselect;
if ($metakeyinput)
$metakey = $metakeyinput; // default
$result = $wpdb->query("
INSERT INTO $wpdb->postmeta
(post_id,meta_key,meta_value)
VALUES ('$post_ID','$metakey','$metavalue')
");
}
} // add_meta
function delete_meta($mid) {
global $wpdb;
$result = $wpdb->query("DELETE FROM $wpdb->postmeta WHERE meta_id = '$mid'");
}
function update_meta($mid, $mkey, $mvalue) {
global $wpdb;
return $wpdb->query("UPDATE $wpdb->postmeta SET meta_key = '$mkey', meta_value = '$mvalue' WHERE meta_id = '$mid'");
}
function touch_time($edit = 1) {
global $month, $postdata;
// echo $postdata['Date'];
if ('draft' == $postdata->post_status) {
$checked = 'checked="checked" ';
$edit = false;
} else {
$checked = ' ';
}
echo '<p><input type="checkbox" class="checkbox" name="edit_date" value="1" id="timestamp" '.$checked.'/> <label for="timestamp">' . __('Edit timestamp') . '</label> <a href="http://wordpress.org/docs/reference/post/#edit_timestamp" title="' . __('Help on changing the timestamp') . '">?</a><br />';
$time_adj = time() + (get_settings('gmt_offset') * 3600);
$post_date = $postdata->post_date;
$jj = ($edit) ? mysql2date('d', $post_date) : gmdate('d', $time_adj);
$mm = ($edit) ? mysql2date('m', $post_date) : gmdate('m', $time_adj);
$aa = ($edit) ? mysql2date('Y', $post_date) : gmdate('Y', $time_adj);
$hh = ($edit) ? mysql2date('H', $post_date) : gmdate('H', $time_adj);
$mn = ($edit) ? mysql2date('i', $post_date) : gmdate('i', $time_adj);
$ss = ($edit) ? mysql2date('s', $post_date) : gmdate('s', $time_adj);
echo '<input type="text" name="jj" value="'.$jj.'" size="2" maxlength="2" />'."\n";
echo "<select name=\"mm\">\n";
for ($i=1; $i < 13; $i=$i+1) {
echo "\t\t\t<option value=\"$i\"";
if ($i == $mm)
echo " selected='selected'";
if ($i < 10) {
$ii = "0".$i;
} else {
$ii = "$i";
}
echo ">".$month["$ii"]."</option>\n";
} ?>
</select>
<input type="text" name="aa" value="<?php echo $aa ?>" size="4" maxlength="5" /> @
<input type="text" name="hh" value="<?php echo $hh ?>" size="2" maxlength="2" /> :
<input type="text" name="mn" value="<?php echo $mn ?>" size="2" maxlength="2" /> :
<input type="text" name="ss" value="<?php echo $ss ?>" size="2" maxlength="2" /> </p>
<?php
}
function check_admin_referer() {
$adminurl = strtolower(get_settings('siteurl')).'/wp-admin';
$referer = strtolower($_SERVER['HTTP_REFERER']);
if ( !strstr($referer, $adminurl) ) {
die('Sorry, you need to enable sending referrers, for this feature to work.');
}
}
?>