function regenerate_vote_summary($poll_id)
{
// Find vote history file
$history_fp = @fopen(vote_history_file_path($poll_id), "r");
if ($history_fp === FALSE) {
return FALSE;
}
// Read votes into summary array
$count = 0;
$votes = array();
while (!@feof($history_fp)) {
$history_line = @fgets($history_fp);
if (empty($history_line)) {
continue;
}
$history = explode_history($history_line);
// Add to summary array
$count++;
$vote_value_id = $history[1];
if (isset($votes[$vote_value_id])) {
$votes[$vote_value_id]++;
} else {
$votes[$vote_value_id] = 1;
}
}
@fclose($history_fp);
// Open summary file
$summary_fp = @fopen(vote_summary_file_path($poll_id), "a");
if ($summary_fp === FALSE) {
vote_die("Unable to open summary file for writing");
}
if (@ftruncate($summary_fp, 0) === FALSE) {
@fclose($summary_fp);
vote_die("Unable to truncate summary file");
}
// Regenerate summary based on counts from history in summary array
fputs($summary_fp, $count . "\n");
// Total count
foreach ($votes as $vote_id => $value) {
fputs($summary_fp, $vote_id . "|" . $value . "\n");
}
@fclose($summary_fp);
return TRUE;
}
function vote_summary_add($poll_id, $vote_value_id)
{
// Get existing poll summary
$summarylist = vote_summary_list($poll_id);
// Open/create summary file
$summary_fp = @fopen(vote_summary_file_path($poll_id), "w");
if ($summary_fp === FALSE) {
die("Unable to open summary file for writing");
}
@flock($summary_fp, LOCK_EX);
// Update total vote count
if ($summarylist === FALSE || count($summarylist) < 1) {
$count = 1;
} else {
$count = $summarylist[0] + 1;
}
fputs($summary_fp, $count . "\n");
// Add vote to value total
if ($summarylist === FALSE) {
// First vote
$out = $vote_value_id . "|1";
fputs($summary_fp, $out . "\n");
} else {
// Iterate through existing vote values
$vote_counted = FALSE;
for ($i = 1; $i < sizeof($summarylist); $i++) {
$summary_row = explode_history($summarylist[$i]);
if ($summary_row[0] === $vote_value_id) {
// Increase vote count for this value
$summary_row[1] += 1;
$vote_counted = TRUE;
}
// Write out new vote count for this id
$out = implode("|", $summary_row);
fputs($summary_fp, $out . "\n");
}
if ($vote_counted === FALSE) {
// This is the first vote for this value
$out = $vote_value_id . "|1";
fputs($summary_fp, $out . "\n");
}
}
fclose($summary_fp);
}
