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[ticket/11179] use FOUND_ROWS query to re-search with changed start param

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PHPBB3-11179
This commit is contained in:
Dhruv 2012-11-10 14:17:38 +01:00
parent 3e5ef8ab2c
commit 1c9c666ef1
1 changed files with 22 additions and 38 deletions
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60
phpBB/includes/search/fulltext_mysql.php
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@ -375,6 +375,11 @@ class phpbb_search_fulltext_mysql extends phpbb_search_base
implode(',', $author_ary)
)));
if ($start < 0)
{
$start = 0;
}
// try reading the results from cache
$result_count = 0;
if ($this->obtain_ids($search_key, $result_count, $id_ary, $start, $per_page, $sort_dir) == SEARCH_RESULT_IN_CACHE)
@ -487,47 +492,11 @@ class phpbb_search_fulltext_mysql extends phpbb_search_base
$id_ary = array_unique($id_ary);
if (!sizeof($id_ary))
{
$sql_count = "SELECT COUNT(*) as result_count
FROM $sql_from$sql_sort_table" . POSTS_TABLE . " p
WHERE MATCH ($sql_match) AGAINST ('" . $this->db->sql_escape(htmlspecialchars_decode($this->search_query)) . "' IN BOOLEAN MODE)
$sql_where_options
ORDER BY $sql_sort";
$result = $this->db->sql_query($sql_count);
$total_match_count = (int) $this->db->sql_fetchfield('result_count');
if ($total_match_count)
{
if ($start < 0)
{
$start = 0;
}
else if ($start >= $total_match_count)
{
$start = floor(($total_match_count - 1) / $per_page) * $per_page;
}
$result = $this->db->sql_query_limit($sql, $this->config['search_block_size'], $start);
while ($row = $this->db->sql_fetchrow($result))
{
$id_ary[] = (int) $row[$field];
}
$this->db->sql_freeresult($result);
$id_ary = array_unique($id_ary);
}
if (!sizeof($id_ary))
{
return false;
}
}
// if the total result count is not cached yet, retrieve it from the db
if (!$result_count)
{
$sql = 'SELECT FOUND_ROWS() as result_count';
$result = $this->db->sql_query($sql);
$sql_found_rows = 'SELECT FOUND_ROWS() as result_count';
$result = $this->db->sql_query($sql_found_rows);
$result_count = (int) $this->db->sql_fetchfield('result_count');
$this->db->sql_freeresult($result);
@ -537,6 +506,21 @@ class phpbb_search_fulltext_mysql extends phpbb_search_base
}
}
if ($start >= $result_count)
{
$start = floor(($result_count - 1) / $per_page) * $per_page;
}
$result = $this->db->sql_query_limit($sql, $this->config['search_block_size'], $start);
while ($row = $this->db->sql_fetchrow($result))
{
$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);
$id_ary = array_slice($id_ary, 0, (int) $per_page);