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<?php
//
// Security message:
//
// This script is potentially dangerous.
// Remove or comment the next line (die(".... ) to enable this script.
// Do NOT FORGET to either remove this script or disable it after you have used it.
//
//
// Do not change anything below this line.
//
set_time_limit(0);
$phpbb_root_path = "../";
include($phpbb_root_path . 'extension.inc');
include($phpbb_root_path . 'common.'.$phpEx);
include($phpbb_root_path . 'includes/search.'.$phpEx);
$common_percent = 0.4; // Percentage of posts in which a word has to appear to be marked as common
print "<html>\n<body>\n";
//
// Try and load stopword and synonym files
//
// This needs fixing! Shouldn't be hardcoded to English files!
$stopword_array = file($phpbb_root_path . "language/lang_english/search_stopwords.txt");
$synonym_array = file($phpbb_root_path . "language/lang_english/search_synonyms.txt");
//
// Fetch a batch of posts_text entries
//
$sql = "SELECT COUNT(*) as total, MAX(post_id) as max_post_id
FROM ". POSTS_TEXT_TABLE;
if ( !($result = $db->sql_query($sql)) )
{
$error = $db->sql_error();
die("Couldn't get maximum post ID :: " . $sql . " :: " . $error['message']);
}
$max_post_id = $db->sql_fetchrow($result);
$totalposts = $max_post_id['total'];
$max_post_id = $max_post_id['max_post_id'];
$postcounter = (!isset($HTTP_GET_VARS['batchstart'])) ? 0 : $HTTP_GET_VARS['batchstart'];
$batchsize = 200; // Process this many posts per loop
$batchcount = 0;
for(;$postcounter <= $max_post_id; $postcounter += $batchsize)
{
$batchstart = $postcounter + 1;
$batchend = $postcounter + $batchsize;
$batchcount++;
$sql = "SELECT *
FROM " . POSTS_TEXT_TABLE . "
WHERE post_id
BETWEEN $batchstart
AND $batchend";
if( !($result = $db->sql_query($sql)) )
{
$error = $db->sql_error();
die("Couldn't get post_text :: " . $sql . " :: " . $error['message']);
}
$rowset = $db->sql_fetchrowset($result);
$db->sql_freeresult($result);
$post_rows = count($rowset);
if( $post_rows )
{
// $sql = "LOCK TABLES ".POST_TEXT_TABLE." WRITE";
// $result = $db->sql_query($sql);
print "\n<p>\n<a href='$PHP_SELF?batchstart=$batchstart'>Restart from posting $batchstart</a><br>\n";
// For every post in the batch:
for($post_nr = 0; $post_nr < $post_rows; $post_nr++ )
{
print ".";
flush();
$post_id = $rowset[$post_nr]['post_id'];
$matches = array();
$matches['text'] = split_words(clean_words("post", $rowset[$post_nr]['post_text'], $stopword_array, $synonym_array));
$matches['title'] = split_words(clean_words("post", $rowset[$post_nr]['post_subject'], $stopword_array, $synonym_array));
while( list($match_type, $match_ary) = @each($matches) )
{
$title_match = ( $match_type == 'title' ) ? 1 : 0;
$num_matches = count($match_ary);
if ( $num_matches < 1 )
{
// Skip this post if no words where found
continue;
}
// For all words in the posting
$sql_in = "";
$sql_insert = '';
$sql_select = '';
$word = array();
$word_count = array();
for($j = 0; $j < $num_matches; $j++)
{
$this_word = strtolower(trim($match_ary[$j]));
if ( $this_word != '' )
{
$word_count[$this_word] = ( isset($word_count[$this_word]) ) ? $word_count[$this_word] + 1 : 0;
$comma = ($sql_insert != '')? ', ': '';
$sql_insert .= "$comma('" . $this_word . "')";
$sql_select .= "$comma'" . $this_word . "'";
}
}
if ( $sql_insert == '' )
{
die("no words found");
}
$sql = 'INSERT IGNORE INTO ' . SEARCH_WORD_TABLE . "
(word_text)
VALUES $sql_insert";
if ( !$result = $db->sql_query($sql) )
{
$error = $db->sql_error();
die("Couldn't INSERT words :: " . $sql . " :: " . $error['message']);
}
// Get the word_id's out of the DB (to see if they are already there)
$sql = "SELECT word_id, word_text
FROM " . SEARCH_WORD_TABLE . "
WHERE word_text IN ($sql_select)
GROUP BY word_text";
$result = $db->sql_query($sql);
if ( !$result )
{
$error = $db->sql_error();
die("Couldn't select words :: " . $sql . " :: " . $error['message']);
}
$sql_insert = array();
while( $row = $db->sql_fetchrow($result) )
{
$sql_insert[] = "($post_id, " . $row['word_id'] . ", $title_match)";
}
$db->sql_freeresult($result);
$sql = "INSERT INTO " . SEARCH_MATCH_TABLE . "
(post_id, word_id, title_match)
VALUES " . implode(", ", $sql_insert);
$result = $db->sql_query($sql);
if ( !$result )
{
$error = $db->sql_error();
die("Couldn't insert new word match :: " . $sql . " :: " . $error['message']);
}
} // All posts
}
// $sql = "UNLOCK TABLES";
// $result = $db->sql_query($sql);
}
// Remove common words after the first 2 batches and after every 4th batch after that.
if( $batchcount % 4 == 3 )
{
print "<br>Removing common words (words that appear in more than $common_percent of the posts)<br>\n";
flush();
print "Removed ". remove_common("global", $common_percent) ." words that where too common.<br>";
}
}
echo "<br>Done";
?>
</body>
</html>
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