ability to remove individual photo tags

mod/photos.php

@@ -850,6 +850,8 @@ function photos_content(&$a) {
 				$tag_str .= bbcode($t);
 			} 
 			$o .= $tag_str . '</div>';
+			if($cmd === 'edit')
+				$o .= '<div id="tag-remove"><a href="' . $a->get_baseurl() . '/tagrm/' . $link_item['id'] . '">' . t('[Remove any tag]') . '</a></div>';
 		}
 
 

mod/tagrm.php

@@ -0,0 +1,99 @@
+<?php
+
+require_once('bbcode.php');
+
+function tagrm_post(&$a) {
+
+	if(! local_user())
+		goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
+
+
+	if((x($_POST,'submit')) && ($_POST['submit'] === t('Cancel')))
+		goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
+
+	$tag =  ((x($_POST,'tag'))  ? hex2bin(notags(trim($_POST['tag']))) : '');
+	$item = ((x($_POST,'item')) ? intval($_POST['item'])               : 0 );
+
+	$r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
+		intval($item),
+		intval(local_user())
+	);
+
+	if(! count($r))
+		goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
+
+	$arr = explode(',', $r[0]['tag']);
+	for($x = 0; $x < count($arr); $x ++) {
+		if($arr[$x] === $tag) {
+			unset($arr[$x]);
+			break;
+		}
+	}
+
+	$tag_str = implode(',',$arr);
+
+	q("UPDATE `item` SET `tag` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1",
+		dbesc($tag_str),
+		intval($item),
+		intval(local_user())
+	);
+
+	notice( t('Tag removed') . EOL );
+	goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
+	
+	// NOTREACHED
+
+}
+
+
+
+function tagrm_content(&$a) {
+
+	$o = '';
+
+	if(! local_user()) {
+		goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
+		// NOTREACHED
+	}
+
+	$item = (($a->argc > 1) ? intval($a->argv[1]) : 0);
+	if(! $item) {
+		goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
+		// NOTREACHED
+	}
+
+
+	$r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
+		intval($item),
+		intval(local_user())
+	);
+
+	if(! count($r))
+		goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
+
+	$arr = explode(',', $r[0]['tag']);
+
+	if(! count($arr))
+		goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
+
+	$o .= '<h3>' . t('Remove Item Tag') . '</h3>';
+
+	$o .= '<p id="tag-remove-desc">' . t('Select a tag to remove: ') . '</p>';
+
+	$o .= '<form id="tagrm" action="tagrm" method="post" >';
+	$o .= '<input type="hidden" name="item" value="' . $item . '" />';
+	$o .= '<ul>';
+
+
+	foreach($arr as $x) {
+		$o .= '<li><input type="checkbox" name="tag" value="' . bin2hex($x) . '" >' . bbcode($x) . '</input></li>';
+	}
+
+	$o .= '</ul>';
+	$o .= '<input id="tagrm-submit" type="submit" name="submit" value="' . t('Remove') .'" />';
+	$o .= '<input id="tagrm-cancel" type="submit" name="submit" value="' . t('Cancel') .'" />';
+	$o .= '</form>';
+
+	return $o;
+	
+}

view/theme/default/style.css

@@ -1797,3 +1797,19 @@ a.mail-list-link {
 .contact-block-link {
 	float: left;
 }
+
+#tag-remove {
+	margin-bottom: 15px;
+}
+
+#tagrm li {
+	margin-bottom: 10px;
+}
+
+#tagrm-submit, #tagrm-cancel {
+	margin-top: 25px;
+}
+
+#tagrm-cancel {
+	margin-left: 15px;
+}