return true;
}
-function db_create_db($connection)
-{
- $db = mysql_connect($connection["host"] ,
- $connection["dbuser"], $connection["dbpassword"]);
- if (!mysql_select_db($connection["dbname"], $db))
- {
- $sql = "CREATE DATABASE " . $connection["dbname"] . "";
- if (!mysql_query($sql))
- return 0;
- mysql_select_db($connection["dbname"], $db);
- }
- return $db;
-}
-
-function db_drop_db($connection)
-{
-
- if ($connection["tbpref"] == "")
- {
- $sql = "DROP DATABASE " . $connection["dbname"] . "";
- return mysql_query($sql);
- }
- else
- {
- $res = db_query("show table status");
- $all_tables = array();
- while($row = db_fetch($res))
- $all_tables[] = $row;
- // get table structures
- foreach ($all_tables as $table)
- {
- if (strpos($table['Name'], $connection["tbpref"]) === 0)
- db_query("DROP TABLE `".$table['Name'] . "`");
- }
- //deleting the tables, how??
- return true;
- }
-}
-
function db_import($filename, $connection, $force=true)
{
global $db, $go_debug;
else
$filename = $conn['dbname'] . "_" . date("Ymd_Hi") . ".sql";
- return db_export($conn, $filename, $ext, $comm, $tbpref);
+ return db_export($conn, clean_file_name($filename), $ext, $comm, $tbpref);
}
// generates a dump of $db database
// $drop and $zip tell if to include the drop table statement or dry to pack
-function db_export($conn, $filename, $zip='no', $comment='', $tbpref = TB_PREF)
+function db_export($conn, $filename, $zip='no', $comment='', $tbpref = TB_PREF, $no_default=false)
{
global $app_title, $version, $power_url, $path_to_root;
$out.="### Structure of table `".$tablename."` ###\n\n";
$out.="DROP TABLE IF EXISTS `".$tablename."`;\n\n";
+ if ($no_default && ($def_pos = strpos($table_sql[$tablename], "DEFAULT CHARSET")) > 0)
+ $table_sql[$tablename] = substr($table_sql[$tablename], 0, $def_pos);
$out.=$table_sql[$tablename];
// add auto_increment value
return false;
}
- // if (mysql_error()) return "DB_ERROR";
- //@mysql_close($con);
-
//if ($zip == "zip")
// $zip = $time;
if (save_to_file($backupfile, $zip, $out))
@fclose($f);
}
}
+
+//
+// Checks $field existence in $table with given field $properties
+// $table - table name without prefix
+// $field - optional field name
+// $properties - optional properties of field defined by MySQL:
+// 'Type', 'Null', 'Key', 'Default', 'Extra'
+//
+function check_table($pref, $table, $field=null, $properties=null)
+{
+ $tables = @db_query("SHOW TABLES LIKE '".$pref.$table."'");
+ if (!db_num_rows($tables))
+ return 1; // no such table or error
+
+ $fields = @db_query("SHOW COLUMNS FROM ".$pref.$table);
+ if (!isset($field))
+ return 0; // table exists
+
+ while( $row = db_fetch_assoc($fields))
+ {
+ if ($row['Field'] == $field)
+ {
+ if (!isset($properties))
+ return 0;
+ foreach($properties as $property => $value)
+ {
+ if ($row[$property] != $value)
+ return 3; // failed type/length check
+ }
+ return 0; // property check ok.
+ }
+ }
+ return 2; // field not found
+}
+
?>
\ No newline at end of file