我正在寻找更好的解决方案来解决此类问题。我需要对具有许多搜索选项的公寓进行高级搜索:关键字、类别、日期从、日期到、价格范围(最低价格、最高价格)和其他字段......如果您选择两个日期,我会计算每间公寓的租金。要计算价格,我不能使用 virtualField 或一个或多个子查询,但我必须使用模型 Apartment 的函数,因为它执行许多计算......
所以我决定使用 afterFind 回调来计算租金价格,并在查询结果数组中添加一个“列”rental_price:
public function afterFind($results, $primary){
if($this->dateFrom && $this->dateTo){
foreach ($results as $key => $val) {
if(isset($val['Apartment']['id'])){
$results[$key]['Apartment']['rental_price'] = $this->calculateRentalPrice($val['Apartment']['id'], $this->dateFrom, $this->dateTo);
}
}
}
return $results;
}
在控制器上:
$this->paginate = array( ... ); // Array with the query
$apartments = $this->paginate('Apartment');
// EDIT
foreach ($apartments as $key => &$apartment) {
if($apartment['Apartment']['rental_price'] < $priceMin || $apartment['Apartment']['rental_price'] > $priceMax){
unset($apartments[$key]);
}
}
$this->set('apartments', $apartments);
问题是现在我想用最低价格和最高价格重新过滤数组 $apartments ,但是如果我直接操作 $apartments 我会遇到分页问题。解决这种情况的最佳方法是什么?
// EDIT
public function calculateRentalPrice($apartmentId, $dateFrom, $dateTo){
$from = new DateTime($dateFrom);
$to = new DateTime($dateTo);
$period = new DatePeriod($from, DateInterval::createFromDateString('1 day'), $to);
$rentalPrice = 0;
foreach ($period as $day){
$date = $day->format("Y-m-d");
$dailyPrice = $this->ApartmentSeason->getDailyPrice($apartmentId, $date);
$rentalPrice += $dailyPrice;
}
return $rentalPrice;
}
public function getDailyPrice($apartmentId, $date){
$apartmentSeason = $this->find('first', array(
'conditions' => array(
'ApartmentSeason.apartment_id' => $apartmentId,
"'{$date}' BETWEEN ApartmentSeason.date_from AND ApartmentSeason.date_to",
"ApartmentSeason.date_to != " => $date,
)
));
$dailyPrice = $apartmentSeason['ApartmentSeason']['price'] / 7;
return $dailyPrice;
}