3 files changed, 129 insertions, 17 deletions
diff --git a/phpBB/phpbb/search/fulltext_mysql.php b/phpBB/phpbb/search/fulltext_mysql.php
index cc8180ec69..137ed7433d 100644
--- a/phpBB/phpbb/search/fulltext_mysql.php
+++ b/phpBB/phpbb/search/fulltext_mysql.php
@@ -1025,17 +1025,37 @@ class fulltext_mysql extends \phpbb\search\base
 			$alter_list[] = $alter_entry;
 		}
 
-		if (count($alter_list))
+		$sql_queries = [];
+
+		foreach ($alter_list as $alter)
 		{
-			foreach ($alter_list as $alter)
-			{
-				$this->db->sql_query('ALTER TABLE ' . POSTS_TABLE . ' ' . implode(', ', $alter));
-			}
+			$sql_queries[] = 'ALTER TABLE ' . POSTS_TABLE . ' ' . implode(', ', $alter);
 		}
 
 		if (!isset($this->stats['post_text']))
 		{
-			$this->db->sql_query('ALTER TABLE ' . POSTS_TABLE . ' ADD FULLTEXT post_text (post_text)');
+			$sql_queries[] = 'ALTER TABLE ' . POSTS_TABLE . ' ADD FULLTEXT post_text (post_text)';
+		}
+
+		$stats = $this->stats;
+
+		/**
+		* Event to modify SQL queries before the MySQL search index is created
+		*
+		* @event core.search_mysql_create_index_before
+		* @var array	sql_queries			Array with queries for creating the search index
+		* @var array	stats				Array with statistics of the current index (read only)
+		* @since 3.2.3-RC1
+		*/
+		$vars = array(
+			'sql_queries',
+			'stats',
+		);
+		extract($this->phpbb_dispatcher->trigger_event('core.search_mysql_create_index_before', compact($vars)));
+
+		foreach ($sql_queries as $sql_query)
+		{
+			$this->db->sql_query($sql_query);
 		}
 
 		$this->db->sql_query('TRUNCATE TABLE ' . SEARCH_RESULTS_TABLE);
@@ -1078,9 +1098,32 @@ class fulltext_mysql extends \phpbb\search\base
 			$alter[] = 'DROP INDEX post_text';
 		}
 
+		$sql_queries = [];
+
 		if (count($alter))
 		{
-			$this->db->sql_query('ALTER TABLE ' . POSTS_TABLE . ' ' . implode(', ', $alter));
+			$sql_queries[] = 'ALTER TABLE ' . POSTS_TABLE . ' ' . implode(', ', $alter);
+		}
+
+		$stats = $this->stats;
+
+		/**
+		* Event to modify SQL queries before the MySQL search index is deleted
+		*
+		* @event core.search_mysql_delete_index_before
+		* @var array	sql_queries			Array with queries for deleting the search index
+		* @var array	stats				Array with statistics of the current index (read only)
+		* @since 3.2.3-RC1
+		*/
+		$vars = array(
+			'sql_queries',
+			'stats',
+		);
+		extract($this->phpbb_dispatcher->trigger_event('core.search_mysql_delete_index_before', compact($vars)));
+
+		foreach ($sql_queries as $sql_query)
+		{
+			$this->db->sql_query($sql_query);
 		}
 
 		$this->db->sql_query('TRUNCATE TABLE ' . SEARCH_RESULTS_TABLE);
diff --git a/phpBB/phpbb/search/fulltext_native.php b/phpBB/phpbb/search/fulltext_native.php
index eb972a257a..4172e2cc4f 100644
--- a/phpBB/phpbb/search/fulltext_native.php
+++ b/phpBB/phpbb/search/fulltext_native.php
@@ -1696,20 +1696,43 @@ class fulltext_native extends \phpbb\search\base
 	*/
 	public function delete_index($acp_module, $u_action)
 	{
+		$sql_queries = [];
+
 		switch ($this->db->get_sql_layer())
 		{
 			case 'sqlite3':
-				$this->db->sql_query('DELETE FROM ' . SEARCH_WORDLIST_TABLE);
-				$this->db->sql_query('DELETE FROM ' . SEARCH_WORDMATCH_TABLE);
-				$this->db->sql_query('DELETE FROM ' . SEARCH_RESULTS_TABLE);
+				$sql_queries[] = 'DELETE FROM ' . SEARCH_WORDLIST_TABLE;
+				$sql_queries[] = 'DELETE FROM ' . SEARCH_WORDMATCH_TABLE;
+				$sql_queries[] = 'DELETE FROM ' . SEARCH_RESULTS_TABLE;
 			break;
 
 			default:
-				$this->db->sql_query('TRUNCATE TABLE ' . SEARCH_WORDLIST_TABLE);
-				$this->db->sql_query('TRUNCATE TABLE ' . SEARCH_WORDMATCH_TABLE);
-				$this->db->sql_query('TRUNCATE TABLE ' . SEARCH_RESULTS_TABLE);
+				$sql_queries[] = 'TRUNCATE TABLE ' . SEARCH_WORDLIST_TABLE;
+				$sql_queries[] = 'TRUNCATE TABLE ' . SEARCH_WORDMATCH_TABLE;
+				$sql_queries[] = 'TRUNCATE TABLE ' . SEARCH_RESULTS_TABLE;
 			break;
 		}
+
+		$stats = $this->stats;
+
+		/**
+		* Event to modify SQL queries before the native search index is deleted
+		*
+		* @event core.search_native_delete_index_before
+		* @var array	sql_queries			Array with queries for deleting the search index
+		* @var array	stats				Array with statistics of the current index (read only)
+		* @since 3.2.3-RC1
+		*/
+		$vars = array(
+			'sql_queries',
+			'stats',
+		);
+		extract($this->phpbb_dispatcher->trigger_event('core.search_native_delete_index_before', compact($vars)));
+
+		foreach ($sql_queries as $sql_query)
+		{
+			$this->db->sql_query($sql_query);
+		}
 	}
 
 	/**
diff --git a/phpBB/phpbb/search/fulltext_postgres.php b/phpBB/phpbb/search/fulltext_postgres.php
index ac76f2f87a..2f387e791e 100644
--- a/phpBB/phpbb/search/fulltext_postgres.php
+++ b/phpBB/phpbb/search/fulltext_postgres.php
@@ -963,14 +963,37 @@ class fulltext_postgres extends \phpbb\search\base
 			$this->get_stats();
 		}
 
+		$sql_queries = [];
+
 		if (!isset($this->stats['post_subject']))
 		{
-			$this->db->sql_query("CREATE INDEX " . POSTS_TABLE . "_" . $this->config['fulltext_postgres_ts_name'] . "_post_subject ON " . POSTS_TABLE . " USING gin (to_tsvector ('" . $this->db->sql_escape($this->config['fulltext_postgres_ts_name']) . "', post_subject))");
+			$sql_queries[] = "CREATE INDEX " . POSTS_TABLE . "_" . $this->config['fulltext_postgres_ts_name'] . "_post_subject ON " . POSTS_TABLE . " USING gin (to_tsvector ('" . $this->db->sql_escape($this->config['fulltext_postgres_ts_name']) . "', post_subject))";
 		}
 
 		if (!isset($this->stats['post_content']))
 		{
-			$this->db->sql_query("CREATE INDEX " . POSTS_TABLE . "_" . $this->config['fulltext_postgres_ts_name'] . "_post_content ON " . POSTS_TABLE . " USING gin (to_tsvector ('" . $this->db->sql_escape($this->config['fulltext_postgres_ts_name']) . "', post_text || ' ' || post_subject))");
+			$sql_queries[] = "CREATE INDEX " . POSTS_TABLE . "_" . $this->config['fulltext_postgres_ts_name'] . "_post_content ON " . POSTS_TABLE . " USING gin (to_tsvector ('" . $this->db->sql_escape($this->config['fulltext_postgres_ts_name']) . "', post_text || ' ' || post_subject))";
+		}
+
+		$stats = $this->stats;
+
+		/**
+		* Event to modify SQL queries before the Postgres search index is created
+		*
+		* @event core.search_postgres_create_index_before
+		* @var array	sql_queries			Array with queries for creating the search index
+		* @var array	stats				Array with statistics of the current index (read only)
+		* @since 3.2.3-RC1
+		*/
+		$vars = array(
+			'sql_queries',
+			'stats',
+		);
+		extract($this->phpbb_dispatcher->trigger_event('core.search_postgres_create_index_before', compact($vars)));
+
+		foreach ($sql_queries as $sql_query)
+		{
+			$this->db->sql_query($sql_query);
 		}
 
 		$this->db->sql_query('TRUNCATE TABLE ' . SEARCH_RESULTS_TABLE);
@@ -996,14 +1019,37 @@ class fulltext_postgres extends \phpbb\search\base
 			$this->get_stats();
 		}
 
+		$sql_queries = [];
+
 		if (isset($this->stats['post_subject']))
 		{
-			$this->db->sql_query('DROP INDEX ' . $this->stats['post_subject']['relname']);
+			$sql_queries[] = 'DROP INDEX ' . $this->stats['post_subject']['relname'];
 		}
 
 		if (isset($this->stats['post_content']))
 		{
-			$this->db->sql_query('DROP INDEX ' . $this->stats['post_content']['relname']);
+			$sql_queries[] = 'DROP INDEX ' . $this->stats['post_content']['relname'];
+		}
+
+		$stats = $this->stats;
+
+		/**
+		* Event to modify SQL queries before the Postgres search index is created
+		*
+		* @event core.search_postgres_delete_index_before
+		* @var array	sql_queries			Array with queries for deleting the search index
+		* @var array	stats				Array with statistics of the current index (read only)
+		* @since 3.2.3-RC1
+		*/
+		$vars = array(
+			'sql_queries',
+			'stats',
+		);
+		extract($this->phpbb_dispatcher->trigger_event('core.search_postgres_delete_index_before', compact($vars)));
+
+		foreach ($sql_queries as $sql_query)
+		{
+			$this->db->sql_query($sql_query);
 		}
 
 		$this->db->sql_query('TRUNCATE TABLE ' . SEARCH_RESULTS_TABLE);