Implement correct behavior for min_id in boundary pagination

- The previous behavior of since_id systematically showed the most recent results

src/BaseRepository.php

@@ -97,34 +97,53 @@ abstract class BaseRepository extends BaseFactory
 	 * Populates the collection according to the condition. Retrieves a limited subset of models depending on the boundaries
 	 * and the limit. The total count of rows matching the condition is stored in the collection.
 	 *
+	 * max_id and min_id are susceptible to the query order:
+	 * - min_id alone only reliably works with ASC order
+	 * - max_id alone only reliably works with DESC order
+	 * If the wrong order is detected in either case, we inverse the query order and we reverse the model array after the query
+	 *
 	 * Chainable.
 	 *
 	 * @param array $condition
 	 * @param array $params
-	 * @param int?  $max_id
+	 * @param int?  $min_id Retrieve models with an id no fewer than this, as close to it as possible
-	 * @param int?  $since_id
+	 * @param int?  $max_id Retrieve models with an id no greater than this, as close to it as possible
 	 * @param int   $limit
 	 * @return BaseCollection
 	 * @throws \Exception
 	 */
-	public function selectByBoundaries(array $condition = [], array $params = [], int $max_id = null, int $since_id = null, int $limit = self::LIMIT)
+	public function selectByBoundaries(array $condition = [], array $params = [], int $min_id = null, int $max_id = null, int $limit = self::LIMIT)
 	{
 		$totalCount = DBA::count(static::$table_name, $condition);
 
 		$boundCondition = $condition;
 
-		if (isset($max_id)) {
+		$reverseModels = false;
-			$boundCondition = DBA::mergeConditions($boundCondition, ['`id` < ?', $max_id]);
+
+		if (isset($min_id)) {
+			$boundCondition = DBA::mergeConditions($boundCondition, ['`id` > ?', $min_id]);
+			if (!isset($max_id) && isset($params['order']['id']) && ($params['order']['id'] === true || $params['order']['id'] === 'DESC')) {
+				$reverseModels = true;
+				$params['order']['id'] = 'ASC';
+			}
 		}
 
-		if (isset($since_id)) {
+		if (isset($max_id)) {
-			$boundCondition = DBA::mergeConditions($boundCondition, ['`id` > ?', $since_id]);
+			$boundCondition = DBA::mergeConditions($boundCondition, ['`id` < ?', $max_id]);
+			if (!isset($min_id) && (!isset($params['order']['id']) || $params['order']['id'] === false || $params['order']['id'] === 'ASC')) {
+				$reverseModels = true;
+				$params['order']['id'] = 'DESC';
+			}
 		}
 
 		$params['limit'] = $limit;
 
 		$models = $this->selectModels($boundCondition, $params);
 
+		if ($reverseModels) {
+			$models = array_reverse($models);
+		}
+
 		return new static::$collection_class($models, $totalCount);
 	}
 
@@ -217,6 +236,8 @@ abstract class BaseRepository extends BaseFactory
 			}
 		}
 
+		$this->dba->close($result);
+
 		return $models;
 	}
 

src/Content/BoundariesPager.php

@@ -27,7 +27,7 @@ use Friendica\Util\Network;
 use Friendica\Util\Strings;
 
 /**
- * This pager should be used by lists using the since_id†/max_id† parameters
+ * This pager should be used by lists using the min_id†/max_id† parameters
  *
  * This pager automatically identifies if the sorting is done increasingly or decreasingly if the first item id†
  * and last item id† are different. Otherwise it defaults to decreasingly like reverse chronological lists.
@@ -60,9 +60,9 @@ class BoundariesPager extends Pager
 		if (!empty($parsed['query'])) {
 			parse_str($parsed['query'], $queryParameters);
 
-			$this->first_page = !($queryParameters['since_id'] ?? null) && !($queryParameters['max_id'] ?? null);
+			$this->first_page = !($queryParameters['min_id'] ?? null) && !($queryParameters['max_id'] ?? null);
 
-			unset($queryParameters['since_id']);
+			unset($queryParameters['min_id']);
 			unset($queryParameters['max_id']);
 
 			$parsed['query'] = http_build_query($queryParameters);
@@ -111,7 +111,7 @@ class BoundariesPager extends Pager
 			'prev'  => [
 				'url'   => Strings::ensureQueryParameter($this->baseQueryString .
 					($this->first_item_id >= $this->last_item_id ?
-						'&since_id=' . $this->first_item_id : '&max_id=' . $this->first_item_id)
+						'&min_id=' . $this->first_item_id : '&max_id=' . $this->first_item_id)
 				),
 				'text'  => $this->l10n->t('newer'),
 				'class' => 'previous' . ($this->first_page ? ' disabled' : '')
@@ -119,7 +119,7 @@ class BoundariesPager extends Pager
 			'next'  => [
 				'url'   => Strings::ensureQueryParameter($this->baseQueryString .
 					($this->first_item_id >= $this->last_item_id ?
-					'&max_id=' . $this->last_item_id : '&since_id=' . $this->last_item_id)
+					'&max_id=' . $this->last_item_id : '&min_id=' . $this->last_item_id)
 				),
 				'text'  => $this->l10n->t('older'),
 				'class' =>  'next' . ($displayedItemCount < $this->getItemsPerPage() ? ' disabled' : '')

src/Module/Api/Mastodon/FollowRequests.php

@@ -91,7 +91,7 @@ class FollowRequests extends BaseApi
 	 */
 	public static function rawContent(array $parameters = [])
 	{
-		$since_id = $_GET['since_id'] ?? null;
+		$min_id = $_GET['min_id'] ?? null;
 		$max_id = $_GET['max_id'] ?? null;
 		$limit = intval($_GET['limit'] ?? 40);
 
@@ -100,7 +100,7 @@ class FollowRequests extends BaseApi
 		$introductions = DI::intro()->selectByBoundaries(
 			['`uid` = ? AND NOT `ignore`', self::$current_user_id],
 			['order' => ['id' => 'DESC']],
-			$since_id,
+			$min_id,
 			$max_id,
 			$limit
 		);
@@ -127,7 +127,7 @@ class FollowRequests extends BaseApi
 		}
 
 		if (count($introductions)) {
-			$links[] = '<' . $baseUrl->get() . '/api/v1/follow_requests?' . http_build_query($base_query + ['since_id' => $introductions[0]->id]) . '>; rel="prev"';
+			$links[] = '<' . $baseUrl->get() . '/api/v1/follow_requests?' . http_build_query($base_query + ['min_id' => $introductions[0]->id]) . '>; rel="prev"';
 		}
 
 		header('Link: ' . implode(', ', $links));

src/Module/Api/Twitter/ContactEndpoint.php

@@ -155,15 +155,24 @@ abstract class ContactEndpoint extends BaseApi
 
 			$total_count = (int)DBA::count('contact', $condition);
 
+			$params = ['limit' => $count, 'order' => ['id' => 'ASC']];
+
 			if ($cursor !== -1) {
 				if ($cursor > 0) {
 					$condition = DBA::mergeConditions($condition, ['`id` > ?', $cursor]);
 				} else {
 					$condition = DBA::mergeConditions($condition, ['`id` < ?', -$cursor]);
+					// Previous page case: we want the items closest to cursor but for that we need to reverse the query order
+					$params['order']['id'] = 'DESC';
 				}
 			}
 
-			$contacts = Contact::selectToArray(['id'], $condition, ['limit' => $count, 'order' => ['id']]);
+			$contacts = Contact::selectToArray(['id'], $condition, $params);
+
+			// Previous page case: once we get the relevant items closest to cursor, we need to restore the expected display order
+			if ($cursor !== -1 && $cursor <= 0) {
+				$contacts = array_reverse($contacts);
+			}
 
 			// Contains user-specific contact ids
 			$ids = array_column($contacts, 'id');

src/Module/Conversation/Community.php

@@ -44,7 +44,7 @@ class Community extends BaseModule
 	protected static $content;
 	protected static $accounttype;
 	protected static $itemsPerPage;
-	protected static $since_id;
+	protected static $min_id;
 	protected static $max_id;
 	protected static $item_id;
 
@@ -98,8 +98,8 @@ class Community extends BaseModule
 				}
 				$query_parameters = [];
 		
-				if (!empty($_GET['since_id'])) {
+				if (!empty($_GET['min_id'])) {
-					$query_parameters['since_id'] = $_GET['since_id'];
+					$query_parameters['min_id'] = $_GET['min_id'];
 				}
 				if (!empty($_GET['max_id'])) {
 					$query_parameters['max_id'] = $_GET['max_id'];
@@ -247,7 +247,7 @@ class Community extends BaseModule
 			self::$item_id = 0;
 		}
 
-		self::$since_id = $_GET['since_id'] ?? null;
+		self::$min_id = $_GET['min_id'] ?? null;
 		self::$max_id   = $_GET['max_id']   ?? null;
 		self::$max_id   = $_GET['last_commented'] ?? self::$max_id;
 	}
@@ -263,7 +263,7 @@ class Community extends BaseModule
 	 */
 	protected static function getItems()
 	{
-		$items = self::selectItems(self::$since_id, self::$max_id, self::$item_id, self::$itemsPerPage);
+		$items = self::selectItems(self::$min_id, self::$max_id, self::$item_id, self::$itemsPerPage);
 
 		$maxpostperauthor = (int) DI::config()->get('system', 'max_author_posts_community_page');
 		if ($maxpostperauthor != 0 && self::$content == 'local') {
@@ -288,14 +288,14 @@ class Community extends BaseModule
 
 				// If we're looking at a "previous page", the lookup continues forward in time because the list is
 				// sorted in chronologically decreasing order
-				if (isset(self::$since_id)) {
+				if (isset(self::$min_id)) {
-					self::$since_id = $items[0]['commented'];
+					self::$min_id = $items[0]['commented'];
 				} else {
 					// In any other case, the lookup continues backwards in time
 					self::$max_id = $items[count($items) - 1]['commented'];
 				}
 
-				$items = self::selectItems(self::$since_id, self::$max_id, self::$item_id, self::$itemsPerPage);
+				$items = self::selectItems(self::$min_id, self::$max_id, self::$item_id, self::$itemsPerPage);
 			}
 		} else {
 			$selected_items = $items;
@@ -307,17 +307,15 @@ class Community extends BaseModule
 	/**
 	 * Database query for the comunity page
 	 *
-	 * @param $since_id
+	 * @param $min_id
 	 * @param $max_id
 	 * @param $itemspage
 	 * @return array
 	 * @throws \Exception
 	 * @TODO Move to repository/factory
 	 */
-	private static function selectItems($since_id, $max_id, $item_id, $itemspage)
+	private static function selectItems($min_id, $max_id, $item_id, $itemspage)
 	{
-		$r = false;
-
 		if (self::$content == 'local') {
 			if (!is_null(self::$accounttype)) {
 				$condition = ["`wall` AND `origin` AND `private` = ? AND `owner`.`contact-type` = ?", Item::PUBLIC, self::$accounttype];
@@ -334,6 +332,8 @@ class Community extends BaseModule
 			return [];
 		}
 
+		$params = ['order' => ['commented' => true], 'limit' => $itemspage];
+
 		if (!empty($item_id)) {
 			$condition[0] .= " AND `iid` = ?";
 			$condition[] = $item_id;
@@ -348,14 +348,26 @@ class Community extends BaseModule
 				$condition[] = $max_id;
 			}
 
-			if (isset($since_id)) {
+			if (isset($min_id)) {
 				$condition[0] .= " AND `commented` > ?";
-				$condition[] = $since_id;
+				$condition[] = $min_id;
+
+				// Previous page case: we want the items closest to min_id but for that we need to reverse the query order
+				if (!isset($max_id)) {
+					$params['order']['commented'] = false;
+				}
 			}
 		}
 
-		$r = Item::selectThreadForUser(0, ['uri', 'commented', 'author-link'], $condition, ['order' => ['commented' => true], 'limit' => $itemspage]);
+		$r = Item::selectThreadForUser(0, ['uri', 'commented', 'author-link'], $condition, $params);
 
-		return DBA::toArray($r);
+		$items = DBA::toArray($r);
+
+		// Previous page case: once we get the relevant items closest to min_id, we need to restore the expected display order
+		if (empty($item_id) && isset($min_id) && !isset($max_id)) {
+			$items = array_reverse($items);
+		}
+
+		return $items;
 	}
 }

src/Repository/FSuggest.php

@@ -80,14 +80,14 @@ class FSuggest extends BaseRepository
 	/**
 	 * @param array    $condition
 	 * @param array    $params
+	 * @param int|null $min_id
 	 * @param int|null $max_id
-	 * @param int|null $since_id
 	 * @param int      $limit
 	 * @return Collection\FSuggests
 	 * @throws \Exception
 	 */
-	public function selectByBoundaries(array $condition = [], array $params = [], int $max_id = null, int $since_id = null, int $limit = self::LIMIT)
+	public function selectByBoundaries(array $condition = [], array $params = [], int $min_id = null, int $max_id = null, int $limit = self::LIMIT)
 	{
-		return parent::selectByBoundaries($condition, $params, $max_id, $since_id, $limit);
+		return parent::selectByBoundaries($condition, $params, $min_id, $max_id, $limit);
 	}
 }

src/Repository/Introduction.php

@@ -66,14 +66,14 @@ class Introduction extends BaseRepository
 	/**
 	 * @param array    $condition
 	 * @param array    $params
+	 * @param int|null $min_id
 	 * @param int|null $max_id
-	 * @param int|null $since_id
 	 * @param int      $limit
 	 * @return Collection\Introductions
 	 * @throws \Exception
 	 */
-	public function selectByBoundaries(array $condition = [], array $params = [], int $max_id = null, int $since_id = null, int $limit = self::LIMIT)
+	public function selectByBoundaries(array $condition = [], array $params = [], int $min_id = null, int $max_id = null, int $limit = self::LIMIT)
 	{
-		return parent::selectByBoundaries($condition, $params, $max_id, $since_id, $limit);
+		return parent::selectByBoundaries($condition, $params, $min_id, $max_id, $limit);
 	}
 }

src/Repository/PermissionSet.php

@@ -95,15 +95,15 @@ class PermissionSet extends BaseRepository
 	/**
 	 * @param array    $condition
 	 * @param array    $params
+	 * @param int|null $min_id
 	 * @param int|null $max_id
-	 * @param int|null $since_id
 	 * @param int      $limit
 	 * @return Collection\PermissionSets
 	 * @throws \Exception
 	 */
-	public function selectByBoundaries(array $condition = [], array $params = [], int $max_id = null, int $since_id = null, int $limit = self::LIMIT)
+	public function selectByBoundaries(array $condition = [], array $params = [], int $min_id = null, int $max_id = null, int $limit = self::LIMIT)
 	{
-		return parent::selectByBoundaries($condition, $params, $max_id, $since_id, $limit);
+		return parent::selectByBoundaries($condition, $params, $min_id, $max_id, $limit);
 	}
 
 	/**

src/Repository/ProfileField.php

@@ -89,15 +89,15 @@ class ProfileField extends BaseRepository
 	/**
 	 * @param array    $condition
 	 * @param array    $params
+	 * @param int|null $min_id
 	 * @param int|null $max_id
-	 * @param int|null $since_id
 	 * @param int      $limit
 	 * @return Collection\ProfileFields
 	 * @throws \Exception
 	 */
-	public function selectByBoundaries(array $condition = [], array $params = [], int $max_id = null, int $since_id = null, int $limit = self::LIMIT)
+	public function selectByBoundaries(array $condition = [], array $params = [], int $min_id = null, int $max_id = null, int $limit = self::LIMIT)
 	{
-		return parent::selectByBoundaries($condition, $params, $max_id, $since_id, $limit);
+		return parent::selectByBoundaries($condition, $params, $min_id, $max_id, $limit);
 	}
 
 	/**

view/js/main.js

@@ -536,7 +536,7 @@ function updateConvItems(data) {
 		if ($('#' + ident).length === 0
 			&& (!getUrlParameter('page')
 				&& !getUrlParameter('max_id')
-				&& !getUrlParameter('since_id')
+				&& !getUrlParameter('min_id')
 				|| getUrlParameter('page') === '1'
 			)
 		) {
@@ -609,8 +609,8 @@ function liveUpdate(src) {
 	if (getUrlParameter('page')) {
 		update_url += '&page=' + getUrlParameter('page');
 	}
-	if (getUrlParameter('since_id')) {
+	if (getUrlParameter('min_id')) {
-		update_url += '&since_id=' + getUrlParameter('since_id');
+		update_url += '&min_id=' + getUrlParameter('min_id');
 	}
 	if (getUrlParameter('max_id')) {
 		update_url += '&max_id=' + getUrlParameter('max_id');