/**
* 取得数据集合
*
* @param string $start 起始时间
* @param string $end 结束时间
* @param string $unit 时间单位
* @return array
*/
public function collect($start, $end, $unit)
{
if (!$this->_checkDatetimeUnit($unit)) {
throw new ZtChart_Model_Assemble_Backend_Exception('The datetime unit is illegal: ' . $unit);
}
$this->_selectDatetimeTable($start, $end, $unit);
$pos = ZtChart_Model_Assemble_Datetime::getDatetimePos($unit);
$select = $this->select(ZtChart_Model_Assemble_Datetime::normalizeDatetime($start), ZtChart_Model_Assemble_Datetime::normalizeDatetime($end), $pos);
$rowset = array();
foreach ($this->_selectGameTypes($select, $this->_group)->query()->fetchAll() as $row) {
$label = substr($row[self::ROW_LABEL], 0, $pos);
if (!array_key_exists($label, $rowset)) {
$rowset[$label] = array();
}
unset($row[self::ROW_LABEL]);
$tmp =& $rowset[$label];
if (!empty($this->_merge)) {
foreach ($this->_merge as $merge) {
$v = $row[$merge];
if (!array_key_exists($v, $tmp)) {
$tmp[$v] = array();
unset($row[$merge]);
}
$tmp =& $tmp[$v];
}
}
foreach ($row as $key => $value) {
if (!array_key_exists($key, $tmp)) {
$tmp[$key] = 0;
}
$tmp[$key] += $value;
}
}
return $rowset;
}
