[ticket/17491] Consistently apply array_unique to search results

PHPBB-17491

phpBB/phpbb/search/fulltext_mysql.php

@@ -609,7 +609,6 @@ class fulltext_mysql extends \phpbb\search\base
 		}
 		$this->db->sql_freeresult($result);
 
-		$id_ary = array_unique($id_ary);
 		// if the total result count is not cached yet, retrieve it from the db
 		if (!$result_count && count($id_ary))
 		{
@@ -635,9 +634,9 @@ class fulltext_mysql extends \phpbb\search\base
 				$id_ary[] = (int) $row[$field];
 			}
 			$this->db->sql_freeresult($result);
+		}
 
 		$id_ary = array_unique($id_ary);
-		}
 
 		// store the ids, from start on then delete anything that isn't on the current page because we only need ids for one page
 		$this->save_ids($search_key, implode(' ', $this->split_words), $author_ary, $result_count, $id_ary, $start, $sort_dir);
@@ -896,9 +895,9 @@ class fulltext_mysql extends \phpbb\search\base
 				$id_ary[] = (int) $row[$field];
 			}
 			$this->db->sql_freeresult($result);
+		}
 
 		$id_ary = array_unique($id_ary);
-		}
 
 		if (count($id_ary))
 		{

phpBB/phpbb/search/fulltext_native.php

@@ -1012,6 +1012,8 @@ class fulltext_native extends \phpbb\search\base
 			$this->db->sql_freeresult($result);
 		}
 
+		$id_ary = array_unique($id_ary);
+
 		// store the ids, from start on then delete anything that isn't on the current page because we only need ids for one page
 		$this->save_ids($search_key, $this->search_query, $author_ary, $total_results, $id_ary, $start, $sort_dir);
 		$id_ary = array_slice($id_ary, 0, (int) $per_page);
@@ -1313,6 +1315,8 @@ class fulltext_native extends \phpbb\search\base
 			$this->db->sql_freeresult($result);
 		}
 
+		$id_ary = array_unique($id_ary);
+
 		if (count($id_ary))
 		{
 			$this->save_ids($search_key, '', $author_ary, $total_results, $id_ary, $start, $sort_dir);

phpBB/phpbb/search/fulltext_postgres.php

@@ -545,8 +545,6 @@ class fulltext_postgres extends \phpbb\search\base
 		}
 		$this->db->sql_freeresult($result);
 
-		$id_ary = array_unique($id_ary);
-
 		// if the total result count is not cached yet, retrieve it from the db
 		if (!$result_count)
 		{
@@ -576,9 +574,9 @@ class fulltext_postgres extends \phpbb\search\base
 				$id_ary[] = $row[$field];
 			}
 			$this->db->sql_freeresult($result);
+		}
 
 		$id_ary = array_unique($id_ary);
-		}
 
 		// store the ids, from start on then delete anything that isn't on the current page because we only need ids for one page
 		$this->save_ids($search_key, implode(' ', $this->split_words), $author_ary, $result_count, $id_ary, $start, $sort_dir);
@@ -858,9 +856,9 @@ class fulltext_postgres extends \phpbb\search\base
 				$id_ary[] = (int) $row[$field];
 			}
 			$this->db->sql_freeresult($result);
+		}
 
 		$id_ary = array_unique($id_ary);
-		}
 
 		if (count($id_ary))
 		{

tests/functional/search/base.php

@@ -327,30 +327,30 @@ abstract class phpbb_functional_search_base extends phpbb_functional_test_case
 		$cache = $this->get_cache_driver();
 		$post_ids_cached = $cache->get($cache_varname);
 		
+		$cached_results_count = count($post_ids_cached) - 2; // Don't count '-1' and '-2' indexes
+
 		$post_ids_cached_backup = $post_ids_cached;
 		
 		// Cached data still should have initial 'd' sort direction
 		$this->assertTrue($post_ids_cached[-2] === 'd', $this->search_backend);
 
-		// Cached search results count should be more than or equal to displayed one
+		// Cached search results count should be equal to displayed on search results page
-		$this->assertGreaterThanOrEqual($posts_count, $post_ids_cached[-1], $this->search_backend);
+		$this->assertEquals($posts_count, $post_ids_cached[-1], $this->search_backend);
 
-		/* Check post ids cached data. Array shouldn't change after removing duplicates and re-sorting.
+		// Actual cached data array count should be equal to displayed on search results page too
-		 * That means it shouldn't have any duplicates and it should be properly ordered already
+		$this->assertEquals($posts_count, $cached_results_count, $this->search_backend);
-		 */
+
+		// Cached data array shouldn't change after removing duplicates. That is, it shouldn't have any duplicates.
 		unset($post_ids_cached[-2], $post_ids_cached[-1]);
 		unset($post_ids_cached_backup[-2], $post_ids_cached_backup[-1]);
 		$post_ids_cached = array_unique($post_ids_cached);
-		rsort($post_ids_cached);
 		$this->assertEquals($post_ids_cached_backup, $post_ids_cached, $this->search_backend);
 
 		// Restore this value to default
-		$sql = 'UPDATE ' . CONFIG_TABLE . '
+		$sql = 'UPDATE ' . CONFIG_TABLE . "
-			SET config_value = ' . floor($posts_count / 3) . "
+			SET config_value = 250
 			WHERE config_name = '" . $this->db->sql_escape('search_block_size') . "'";
 		$this->db->sql_query($sql);
-		$crawler = self::submit($form);
-		$this->assertEquals(1, $crawler->filter('.successbox')->count(), $this->search_backend);
 
 		// Restore posts_per_page value
 		$crawler = self::request('GET', 'adm/index.php?sid=' . $this->sid . '&i=acp_board&mode=post');