我想我被這個問題困住了，所以我希望你能給我一些如何解決這個任務(wù)的想法。我正在開發(fā)一個應(yīng)用程序，它可以讓您大致了解您的定期付款（我知道，這些東西已經(jīng)存在，這只是一個副項目）和您的費用。API 快要完成了，但我在這部分掙扎：我需要知道在給定的時間跨度內(nèi)是否需要定期付款。重復事件（合同）包含其他字段 startDate、endDate、intervalType（枚舉 [每周、每月、每季度、每半年、每年]）目前我有這個作為我的學說查詢：return $this->createQueryBuilder('e') ->andWhere('e.startDate >= :start') ->andWhere('e.endDate <= :end') ->andWhere('e.user = :user') ->setParameter('start', $start) ->setParameter('end', $end) ->setParameter('user', $user) ->getQuery() ->getResult();其中參數(shù) start 和 end 是間隔幀。但是我如何檢查合同是否在選定框架內(nèi)到期以及多久到期？Afaik 這只能通過迭代查詢結(jié)果并檢查合同是否與時間范圍相交并注意在此期間發(fā)生的頻率和時間來實現(xiàn)。但我不知道我怎么能做到這一點。示例數(shù)據(jù)：[name, intervalType, startDate, endDate, amount]rent, monthly, 2019-01-01, 2020-10-11, -500utility, monthly, 2019-01-01, 2020-10-11, -150salary, monthly, 2019-01-01, 2020-10-11, 1700investment, biannually, 2019-02-10, null , 2500food, weekly, 2019-01-01, null , -50如果我有這個月的時間表（2019-05-01 - 2019-05-31），我會得到這些合同：rent 2019-05-01utility 2019-05-01salary 2019-05-01food 2019-05-01food 2019-05-08food 2019-05-15food 2019-05-22food 2019-05-29如果我選擇以下 2 個月（2019-07-01 - 2019-08-31），我會得到這個：rent 2019-07-01rent 2019-08-01utility 2019-07-01utility 2019-08-01salary 2019-07-01salary 2019-08-01food 2019-07-01food 2019-07-08food 2019-07-15food 2019-07-22food 2019-07-29food 2019-08-01food 2019-08-08food 2019-08-15food 2019-08-22food 2019-08-29investment 2019-08-01DateTime 和 DateInterval 可以實現(xiàn)嗎？
1 回答
慕村9548890
TA貢獻1884條經(jīng)驗 獲得超4個贊
每周間隔的邏輯在我看來是錯誤的。至少在我的銀行應(yīng)用程序中，每周計劃總是在同一個工作日，兩次連續(xù)發(fā)生之間有 7 天。
因此，根據(jù)該邏輯，您可以使用此功能：
function getScheduleBetween($data, $intervalStart, $intervalEnd) {
$ref = [
"yearly" => [12, "months"],
"annually" => [12, "months"],
"biannually" => [6, "months"],
"quarterly" => [3, "months"],
"monthly" => [1, "months"],
"weekly" => [7, "days"],
"daily" => [1, "days"]
];
$intervalStart = new DateTime($intervalStart);
$intervalEnd = new DateTime($intervalEnd);
$result = [];
foreach($data as $schedule) {
// Convert start/end to DateTime
$startDate = new DateTime($schedule["startDate"]);
$endDate = $schedule["endDate"] ? min(new DateTime($schedule["endDate"]), $intervalEnd) : $intervalEnd;
$name = $schedule["name"];
$interval = $schedule["intervalType"];
if (!isset($ref[$interval])) throw "Invalid interval type";
list($coeff, $interval) = $ref[$interval];
$match = clone $startDate;
if ($match < $intervalStart) {
$diff = $intervalStart->diff($match);
$count = $interval == "days" ? $diff->format("%a") : $diff->m + $diff->y * 12 + ($diff->d ? 1 : 0);
$count = ceil($count / $coeff) * $coeff;
$match->modify("+$count $interval");
}
while ($match <= $endDate) {
$temp = clone $match;
$result[] = ["name" => $name, "date" => $temp->format("Y-m-d")];
$match->modify("+$coeff $interval");
}
}
array_multisort(array_column($result, "date"), $result);
return $result;
}
使用示例：
$data = [
["name" => "rent", "intervalType" => "monthly", "startDate" => "2019-01-01", "endDate" => "2020-10-11", "amount" => -500],
["name" => "utility", "intervalType" => "monthly", "startDate" => "2019-01-01", "endDate" => "2020-10-11", "amount" => -150],
["name" => "salary", "intervalType" => "monthly", "startDate" => "2019-01-01", "endDate" => "2020-10-11", "amount" => 1700],
["name" => "investment", "intervalType" => "biannually", "startDate" => "2019-02-10", "endDate" => null, "amount" => 2500],
["name" => "food", "intervalType" => "weekly", "startDate" => "2019-01-01", "endDate" => null, "amount" => -50],
];
$result = getScheduleBetween($data, "2019-05-01", "2019-05-31");
print_r($result);
隨著更大的時期：
$result = getScheduleBetween($data, "2019-05-01", "2019-08-31");
print_r($result);
如果您有其他類型的間隔，我相信您可以輕松擴展此功能以支持它們，即使使用“每周”的其他邏輯。
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