function rss_query($query, $dieOnError = true, $preventRecursion = false)
{
$ret = $this->_db->query($query);
if ($error = $this->rss_sql_error()) {
$errorString = $this->rss_sql_error_message();
}
// if we got a missing table error, look for missing tables in the schema
// and try to create them
if ($error == 1146 && !$preventRecursion && $dieOnError) {
require_once dirname(__FILE__) . '/../../init.php';
rss_require('schema.php');
checkSchema();
return $this->rss_query($query, $dieOnError, true);
} elseif ($error == 1054 && !$preventRecursion && $dieOnError) {
if (preg_match("/^[^']+'([^']+)'.*\$/", $errorString, $matches)) {
require_once dirname(__FILE__) . '/../../init.php';
rss_require('schema.php');
checkSchemaColumns($matches[1]);
return $this->rss_query($query, $dieOnError, true);
}
}
if ($error && $dieOnError) {
die("<p>Failed to execute the SQL query <pre>{$query}</pre> </p>" . "<p>Error {$error}: {$errorString}</p>");
}
return $ret;
}
function rss_query($query, $dieOnError = true, $preventRecursion = false)
{
//we use a wrapper to convert MySQL specific instruction to sqlite
$result = false;
$GLOBALS["sqlite_extented_error"] = "";
$errorString = " (none) ";
$this->debugLog("SQL BEFORE: {$query}");
$query = $this->mysql2sqlite($query);
if (is_array($query)) {
$this->debugLog("SQL AFTER: " . implode("\n", $query));
} else {
$this->debugLog("SQL AFTER: {$query}");
}
if (is_string($query) && preg_match("/^alter table/is", $query)) {
$queryparts = preg_split("/[\\s]+/", $query, 4, PREG_SPLIT_NO_EMPTY);
$tablename = $queryparts[2];
$alterdefs = $queryparts[3];
if (strtolower($queryparts[1]) != 'table' || $queryparts[2] == '') {
$error = 1;
$errorString = 'near "' . $queryparts[0] . '": syntax error';
} else {
set_error_handler(array(&$this, 'rss_catch_error_handler'));
$result = $this->alter_table($tablename, $alterdefs);
restore_error_handler();
}
} else {
if (is_array($query)) {
//means that it's a SCHEMA creation so we process each query
foreach ($query as $sql_query) {
set_error_handler(array(&$this, 'rss_catch_error_handler'));
$result = sqlite_query($this->db, $sql_query);
restore_error_handler();
if ($error = $this->rss_sql_error()) {
if ($error == 1 && preg_match("/DROP TABLE/is", $sql_query)) {
//not a real error to drop a table which do not exists
$error = 0;
continue;
}
break;
}
}
} else {
set_error_handler(array(&$this, 'rss_catch_error_handler'));
$result = sqlite_query($this->db, $query);
restore_error_handler();
}
if ($error = $this->rss_sql_error()) {
if ($error == 1 && is_string($query) && preg_match("/^\\s*DROP TABLE/is", $query)) {
//not a real error to drop a table which do not exists
$error = 0;
} else {
$errorString = $this->rss_sql_error_message();
}
}
}
if ($error) {
$this->debugLog("SQL EXEC ERR: {$error} - {$errorString}");
} else {
$this->debugLog("SQL EXEC OK");
}
if ($error == 1 && $dieOnError && !$preventRecursion) {
if (preg_match("/no\\s+such\\s+table/is", $errorString)) {
ob_start();
require_once dirname(__FILE__) . '/../../init.php';
require_once dirname(__FILE__) . '/../../schema.php';
checkSchema();
ob_clean();
return $this->rss_query($query, $dieOnError, true);
} else {
if (preg_match("/(no\\s+such\\s+column\\s*:\\s*|no\\s+column\\s+named\\s+)(.+)/is", $errorString, $matches)) {
ob_start();
require_once dirname(__FILE__) . '/../../init.php';
require_once dirname(__FILE__) . '/../../schema.php';
checkSchemaColumns(trim($matches[2]));
ob_clean();
return $this->rss_query($query, $dieOnError, true);
}
}
}
if ($error && $dieOnError) {
die("<p>Failed to execute the SQL query <pre>{$query}</pre> </p>" . "<p>Error {$error}: {$errorString}</p>");
}
return $result;
}