"last-child" is not used anymore

database.sql

@@ -499,7 +499,6 @@ CREATE TABLE IF NOT EXISTS `item` (
 	`deleted` boolean NOT NULL DEFAULT '0' COMMENT '',
 	`origin` boolean NOT NULL DEFAULT '0' COMMENT '',
 	`forum_mode` tinyint NOT NULL DEFAULT 0 COMMENT '',
-	`last-child` boolean NOT NULL DEFAULT '1' COMMENT '',
 	`mention` boolean NOT NULL DEFAULT '0' COMMENT '',
 	`network` varchar(32) NOT NULL DEFAULT '' COMMENT '',
 	`rendered-hash` varchar(32) NOT NULL DEFAULT '' COMMENT '',

include/api.php

@@ -4713,7 +4713,6 @@ function post_photo_item($hash, $allow_cid, $deny_cid, $allow_gid, $deny_gid, $f
 	$arr['allow_gid']     = $allow_gid;
 	$arr['deny_cid']      = $deny_cid;
 	$arr['deny_gid']      = $deny_gid;
-	$arr['last-child']    = 1;
 	$arr['visible']       = $visibility;
 	$arr['origin']        = 1;
 

include/conversation.php

@@ -430,7 +430,6 @@ These Fields are not added below (yet). They are here to for bug search.
 `item`.`deleted`,
 `item`.`origin`,
 `item`.`forum_mode`,
-`item`.`last-child`,
 `item`.`mention`,
 `item`.`global`,
 `item`.`gcontact-id`,

include/event.php

@@ -386,7 +386,6 @@ function event_store($arr) {
 		$item_arr['deny_cid']      = $arr['deny_cid'];
 		$item_arr['deny_gid']      = $arr['deny_gid'];
 		$item_arr['private']       = $arr['private'];
-		$item_arr['last-child']    = 1;
 		$item_arr['visible']       = 1;
 		$item_arr['verb']          = ACTIVITY_POST;
 		$item_arr['object-type']   = ACTIVITY_OBJ_EVENT;

include/items.php

@@ -487,7 +487,6 @@ function item_store($arr, $force_parent = false, $notify = false, $dontcache = f
 		$arr['wall'] = 1;
 		$arr['type'] = 'wall';
 		$arr['origin'] = 1;
-		$arr['last-child'] = 1;
 		$arr['network'] = NETWORK_DFRN;
 		$arr['protocol'] = PROTOCOL_DFRN;
 
@@ -624,7 +623,6 @@ function item_store($arr, $force_parent = false, $notify = false, $dontcache = f
 	$arr['title']         = ((x($arr, 'title'))         ? trim($arr['title'])         : '');
 	$arr['location']      = ((x($arr, 'location'))      ? trim($arr['location'])      : '');
 	$arr['coord']         = ((x($arr, 'coord'))         ? notags(trim($arr['coord']))         : '');
-	$arr['last-child']    = ((x($arr, 'last-child'))    ? intval($arr['last-child'])          : 0 );
 	$arr['visible']       = ((x($arr, 'visible') !== false) ? intval($arr['visible'])         : 1 );
 	$arr['deleted']       = 0;
 	$arr['parent-uri']    = ((x($arr, 'parent-uri'))    ? notags(trim($arr['parent-uri']))    : $arr['uri']);
@@ -1112,18 +1110,6 @@ function item_store($arr, $force_parent = false, $notify = false, $dontcache = f
 	create_tags_from_item($current_post);
 	Term::createFromItem($current_post);
 
-	/*
-	 * If this is now the last-child, force all _other_ children of this parent to *not* be last-child
-	 * It is done after the transaction to avoid dead locks.
-	 */
-	if ($arr['last-child']) {
-		q("UPDATE `item` SET `last-child` = 0 WHERE `parent-uri` = '%s' AND `uid` = %d AND `id` != %d",
-			dbesc($arr['uri']),
-			intval($arr['uid']),
-			intval($current_post)
-		);
-	}
-
 	if ($arr['parent-uri'] === $arr['uri']) {
 		Item::addShadow($current_post);
 	} else {

include/like.php

@@ -238,7 +238,6 @@ EOT;
 		'deny_gid'      => $item['deny_gid'],
 		'visible'       => 1,
 		'unseen'        => 1,
-		'last-child'    => 0
 	];
 
 	$new_item_id = item_store($new_item);

mod/dfrn_confirm.php

@@ -432,8 +432,6 @@ function dfrn_confirm_post(App $a, $handsfree = null)
 					$arr['object'] .= xmlify('<link rel="photo" type="image/jpeg" href="' . $contact['thumb'] . '" />' . "\n");
 					$arr['object'] .= '</link></object>' . "\n";
 
-					$arr['last-child'] = 1;
-
 					$arr['allow_cid'] = $user['allow_cid'];
 					$arr['allow_gid'] = $user['allow_gid'];
 					$arr['deny_cid']  = $user['deny_cid'];
@@ -696,8 +694,6 @@ function dfrn_confirm_post(App $a, $handsfree = null)
 					$arr['object'] .= xmlify('<link rel="photo" type="image/jpeg" href="' . $combined['thumb'] . '" />' . "\n");
 					$arr['object'] .= '</link></object>' . "\n";
 
-					$arr['last-child'] = 1;
-
 					$arr['allow_cid'] = $user['allow_cid'];
 					$arr['allow_gid'] = $user['allow_gid'];
 					$arr['deny_cid']  = $user['deny_cid'];

mod/item.php

@@ -738,7 +738,6 @@ function item_post(App $a) {
 	$datarray['gcontact-id']   = GContact::getId(["url" => $datarray['author-link'], "network" => $datarray['network'],
 							"photo" => $datarray['author-avatar'], "name" => $datarray['author-name']]);
 	$datarray['object']        = $object;
-	$datarray['last-child'] = 1;
 
 	/*
 	 * These fields are for the convenience of plugins...

mod/photos.php

@@ -510,7 +510,6 @@ function photos_post(App $a)
 			$arr['allow_gid']     = $p[0]['allow_gid'];
 			$arr['deny_cid']      = $p[0]['deny_cid'];
 			$arr['deny_gid']      = $p[0]['deny_gid'];
-			$arr['last-child']    = 1;
 			$arr['visible']       = $visibility;
 			$arr['origin']        = 1;
 
@@ -687,7 +686,6 @@ function photos_post(App $a)
 					$arr['allow_gid']     = $p[0]['allow_gid'];
 					$arr['deny_cid']      = $p[0]['deny_cid'];
 					$arr['deny_gid']      = $p[0]['deny_gid'];
-					$arr['last-child']    = 1;
 					$arr['visible']       = 1;
 					$arr['verb']          = ACTIVITY_TAG;
 					$arr['object-type']   = ACTIVITY_OBJ_PERSON;
@@ -924,7 +922,6 @@ function photos_post(App $a)
 	$arr['allow_gid']     = $str_group_allow;
 	$arr['deny_cid']      = $str_contact_deny;
 	$arr['deny_gid']      = $str_group_deny;
-	$arr['last-child']    = 1;
 	$arr['visible']       = $visible;
 	$arr['origin']        = 1;
 
@@ -1513,7 +1510,7 @@ function photos_content(App $a)
 			}
 
 			if (!DBM::is_result($r)) {
-				if (($can_post || can_write_wall($owner_uid)) && $link_item['last-child']) {
+				if (($can_post || can_write_wall($owner_uid))) {
 					$comments .= replace_macros($cmnt_tpl, [
 						'$return_path' => '',
 						'$jsreload' => $return_url,
@@ -1552,7 +1549,7 @@ function photos_content(App $a)
 					$dislike = format_like($conv_responses['dislike'][$link_item['uri']], $conv_responses['dislike'][$link_item['uri'] . '-l'], 'dislike', $link_item['id']);
 				}
 
-				if (($can_post || can_write_wall($owner_uid)) && $link_item['last-child']) {
+				if (($can_post || can_write_wall($owner_uid))) {
 					$comments .= replace_macros($cmnt_tpl,[
 						'$return_path' => '',
 						'$jsreload' => $return_url,
@@ -1625,7 +1622,7 @@ function photos_content(App $a)
 						'$comment' => $comment
 					]);
 
-					if (($can_post || can_write_wall($owner_uid)) && $item['last-child']) {
+					if (($can_post || can_write_wall($owner_uid))) {
 						$comments .= replace_macros($cmnt_tpl, [
 							'$return_path' => '',
 							'$jsreload' => $return_url,

mod/poke.php

@@ -117,7 +117,6 @@ function poke_init(App $a) {
 	$arr['allow_gid']     = $allow_gid;
 	$arr['deny_cid']      = $deny_cid;
 	$arr['deny_gid']      = $deny_gid;
-	$arr['last-child']    = 1;
 	$arr['visible']       = 1;
 	$arr['verb']          = $activity;
 	$arr['private']       = $private;

mod/profiles.php

@@ -593,7 +593,6 @@ function profile_activity($changed, $value) {
 	$arr['object'] .= '<link>' . xmlify('<link rel="alternate" type="text/html" href="' . $self[0]['url'] . '?tab=profile' . '" />' . "\n");
 	$arr['object'] .= xmlify('<link rel="photo" type="image/jpeg" href="' . $self[0]['thumb'] . '" />' . "\n");
 	$arr['object'] .= '</link></object>' . "\n";
-	$arr['last-child'] = 1;
 
 	$arr['allow_cid'] = $a->user['allow_cid'];
 	$arr['allow_gid'] = $a->user['allow_gid'];

mod/subthread.php

@@ -144,7 +144,6 @@ EOT;
 	$arr['deny_gid'] = $item['deny_gid'];
 	$arr['visible'] = 1;
 	$arr['unseen'] = 1;
-	$arr['last-child'] = 0;
 
 	$post_id = item_store($arr);
 

mod/tagger.php

@@ -139,7 +139,6 @@ EOT;
 	$arr['deny_gid'] = $item['deny_gid'];
 	$arr['visible'] = 1;
 	$arr['unseen'] = 1;
-	$arr['last-child'] = 1;
 	$arr['origin'] = 1;
 
 	$post_id = item_store($arr);

src/Database/DBStructure.php

@@ -1175,7 +1175,6 @@ class DBStructure {
 						"deleted" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
 						"origin" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
 						"forum_mode" => ["type" => "tinyint", "not null" => "1", "default" => "0", "comment" => ""],
-						"last-child" => ["type" => "boolean", "not null" => "1", "default" => "1", "comment" => ""],
 						"mention" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
 						"network" => ["type" => "varchar(32)", "not null" => "1", "default" => "", "comment" => ""],
 						"rendered-hash" => ["type" => "varchar(32)", "not null" => "1", "default" => "", "comment" => ""],

src/Protocol/DFRN.php

@@ -997,7 +997,7 @@ class DFRN
 		// "comment-allow" is some old fashioned stuff for old Friendica versions.
 		// It is included in the rewritten code for completeness
 		if ($comment) {
-			XML::addElement($doc, $entry, "dfrn:comment-allow", intval($item['last-child']));
+			XML::addElement($doc, $entry, "dfrn:comment-allow", 1);
 		}
 
 		if ($item['location']) {
@@ -2117,23 +2117,6 @@ class DFRN
 				Worker::add(PRIORITY_HIGH, "Notifier", "comment-import", $current["id"]);
 			}
 		}
-
-		// update last-child if it changes
-		if ($item["last-child"] && ($item["last-child"] != $current["last-child"])) {
-			$r = q(
-				"UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` IN (0, %d)",
-				dbesc(datetime_convert()),
-				dbesc($item["parent-uri"]),
-				intval($importer["importer_uid"])
-			);
-			$r = q(
-				"UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` IN (0, %d)",
-				intval($item["last-child"]),
-				dbesc(datetime_convert()),
-				dbesc($item["uri"]),
-				intval($importer["importer_uid"])
-			);
-		}
 		return $changed;
 	}
 
@@ -2459,7 +2442,7 @@ class DFRN
 		$item["edited"] = $xpath->query("atom:updated/text()", $entry)->item(0)->nodeValue;
 
 		$current = q(
-			"SELECT `id`, `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
+			"SELECT `id`, `uid`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 			dbesc($item["uri"]),
 			intval($importer["importer_uid"])
 		);
@@ -2523,7 +2506,6 @@ class DFRN
 		// We don't need the content element since "dfrn:env" is always present
 		//$item["body"] = $xpath->query("atom:content/text()", $entry)->item(0)->nodeValue;
 
-		$item["last-child"] = $xpath->query("dfrn:comment-allow/text()", $entry)->item(0)->nodeValue;
 		$item["location"] = $xpath->query("dfrn:location/text()", $entry)->item(0)->nodeValue;
 
 		$georsspoint = $xpath->query("georss:point", $entry);
@@ -2747,22 +2729,6 @@ class DFRN
 					$parent_uri = $r[0]["parent-uri"];
 				}
 
-				if (!$is_like) {
-					$r1 = q(
-						"UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `uid` = %d AND `parent` = %d",
-						dbesc(datetime_convert()),
-						intval($importer["importer_uid"]),
-						intval($r[0]["parent"])
-					);
-
-					$r2 = q(
-						"UPDATE `item` SET `last-child` = 1, `changed` = '%s' WHERE `uid` = %d AND `id` = %d",
-						dbesc(datetime_convert()),
-						intval($importer["importer_uid"]),
-						intval($posted_id)
-					);
-				}
-
 				if ($posted_id && $parent && ($entrytype == DFRN_REPLY_RC)) {
 					logger("Notifying followers about comment ".$posted_id, LOGGER_DEBUG);
 					Worker::add(PRIORITY_HIGH, "Notifier", "comment-import", $posted_id);
@@ -2928,28 +2894,7 @@ class DFRN
 				create_tags_from_itemuri($uri, $importer["uid"]);
 				Term::createFromItemURI($uri, $importer["uid"]);
 				update_thread_uri($uri, $importer["importer_uid"]);
-				if ($item["last-child"]) {
+
-					// ensure that last-child is set in case the comment that had it just got wiped.
-					q(
-						"UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` IN (0, %d)",
-						dbesc(datetime_convert()),
-						dbesc($item["parent-uri"]),
-						intval($item["uid"])
-					);
-					// who is the last child now?
-					$r = q(
-						"SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `moderated` = 0 AND `uid` = %d
-						ORDER BY `created` DESC LIMIT 1",
-						dbesc($item["parent-uri"]),
-						intval($importer["uid"])
-					);
-					if (DBM::is_result($r)) {
-						q(
-							"UPDATE `item` SET `last-child` = 1 WHERE `id` = %d",
-							intval($r[0]["id"])
-						);
-					}
-				}
 				// if this is a relayed delete, propagate it to other recipients
 
 				if ($entrytype == DFRN_REPLY_RC) {

src/Protocol/Diaspora.php

@@ -2409,8 +2409,6 @@ class Diaspora
 
 				$arr["object"] = self::constructNewFriendObject($contact);
 
-				$arr["last-child"] = 1;
-
 				$user = dba::selectFirst('user', ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'], ['uid' => $importer["uid"]]);
 
 				$arr["allow_cid"] = $user["allow_cid"];

src/Protocol/Feed.php

@@ -198,11 +198,6 @@ class Feed {
 
 		$header["contact-id"] = $contact["id"];
 
-		if (!strlen($contact["notify"])) {
-			// one way feed - no remote comment ability
-			$header["last-child"] = 0;
-		}
-
 		if (!is_object($entries)) {
 			logger("There are no entries in this feed.", LOGGER_DEBUG);
 			return;

src/Worker/OnePoll.php

@@ -531,11 +531,6 @@ class OnePoll
 
 							$stored_item = item_store($datarray);
 
-							$condition = ['parent-uri' => $datarray['parent-uri'], 'uid' => $importer_uid];
-							dba::update('item', ['last-child' => false], $condition);
-
-							dba::update('item', ['last-child' => true], ['id' => $stored_item]);
-
 							switch ($mailconf['action']) {
 								case 0:
 									logger("Mail: Seen before ".$msg_uid." for ".$mailconf['user'].". Doing nothing.", LOGGER_DEBUG);