change the way tagrm works to allow tag removal on the fly

1 files changed, 64 insertions, 27 deletions

diff --git a/mod/tagrm.php b/mod/tagrm.php
index 930d449b7..38787cb0b 100644
--- a/mod/tagrm.php
+++ b/mod/tagrm.php
@@ -52,53 +52,90 @@ function tagrm_post(&$a) {
 
 function tagrm_content(&$a) {
 
-	$o = '';
-
 	if(! local_user()) {
 		goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
 		// NOTREACHED
 	}
 
-	$item = intval($_GET['item']);
-	if(! $item) {
+	// remove tag on the fly if item and tag are provided
+	if((argc() == 4) && (argv(1) === 'drop') && intval(argv(2))) {
+
+		$item = intval(argv(2));
+		$tag = argv(3);
+
+		$r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
+			intval($item),
+			intval(local_user())
+		);
+
+		if(! $r)
+			goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
+
+		$r = fetch_post_tags($r,true);
+
+		$item = $r[0];
+
+		$new_tags = array();
+
+		if($item['term']) {
+			for($x = 0; $x < count($item['term']); $x ++) {
+				if($item['term'][$x]['term'] !== hex2bin($tag))
+					$new_tags[] = $item['term'][$x];
+			}
+		}
+
+		if($new_tags)
+			$item['term'] = $new_tags;
+		else
+			unset($item['term']);
+
+		item_store_update($item);
+
+		info( t('Tag removed') . EOL );
 		goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
-		// NOTREACHED
+
 	}
 
+	//if we got only the item print a list of tags to select
+	if((argc() == 3) && (argv(1) === 'drop') && intval(argv(2))) {
 
-	$r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
-		intval($item),
-		intval(local_user())
-	);
+		$o = '';
 
+		$item = intval(argv(2));
 
-	if(! $r)
-		goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
+		$r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
+			intval($item),
+			intval(local_user())
+		);
 
-	$r = fetch_post_tags($r,true);
+		if(! $r)
+			goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
 
+		$r = fetch_post_tags($r,true);
 
-	if(! count($r[0]['term']))
-		goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
+		if(! count($r[0]['term']))
+			goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
 
-	$o .= '<h3>' . t('Remove Item Tag') . '</h3>';
+		$o .= '<h3>' . t('Remove Item Tag') . '</h3>';
 
-	$o .= '<p id="tag-remove-desc">' . t('Select a tag to remove: ') . '</p>';
+		$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>';
+		$o .= '<form id="tagrm" action="tagrm" method="post" >';
+		$o .= '<input type="hidden" name="item" value="' . $item . '" />';
+		$o .= '<ul>';
 
 
-	foreach($r[0]['term'] as $x) {
-		$o .= '<li><input type="checkbox" name="tag" value="' . bin2hex($x['term']) . '" >' . bbcode($x['term']) . '</input></li>';
-	}
+		foreach($r[0]['term'] as $x) {
+			$o .= '<li><input type="checkbox" name="tag" value="' . bin2hex($x['term']) . '" >' . bbcode($x['term']) . '</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>';
 
-	$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;
 
-	return $o;
+	}
 	
 }