问题描述

所以我遇到了 Laravel 更新和保存的烦人问题.我有一个模型/表 Invoice 和 invoices，它有一个时间戳 sent_at.

So I'm running into an annoying problem with Laravel update and save. I have a model/table Invoice and invoices, that has a timestamp sent_at.

Invoice.php

class Invoice extends Model {
    protected $dates = [
        "sent_at",
    ];
}

我有以下更新Invoice的函数:

InvoicesController.php:

public function postPayInvoice(Request $request, $invoiceId){
    $user = $this->apiResponse->user;

    $invoiceItemIds = $request->input("invoice_item_ids");

    $invoice = Invoice::with(["invoiceItems" => function($subQuery) use($invoiceItemIds){
        return $subQuery->whereIn("invoice_items.id", $invoiceItemIds);
    }])->where("id", "=", $invoiceId)->first();

    Log::info("Load: ".$invoice->sent_at);

    DB::beginTransaction();
    try {
        foreach($invoice->invoiceItems AS $invoiceItem){
            $invoiceItem->status = "paid";
            $invoiceItem->paid_at = Carbon::now();
            $invoiceItem->save();
        }

        $totalInvoices = $invoice->invoiceItems()->count();
        $paidInvoiceItems = $invoice->invoiceItems()->where("status", "=", "paid")->count();

        if($totalInvoices == $paidInvoiceItems){
            $invoice->status = "paid";
            $invoice->paid_at = Carbon::now();
        } else {
            $invoice->status = "partially_paid";
        }

        Log::info("Pre: ".$invoice->sent_at);

        $invoice->save();

        Log::info("Post: ".$invoice->sent_at);

    } catch(Exception $ex){
        DB::rollBack();
        return $this->apiResponse->returnFail([], "Unable to Pay Invoice: ".$ex->getMessage(), 200);
    }

    DB::{$request->input("rollback", null) ? "rollback" : "commit"}();

    Log::info("Post Commit: ".$invoice->sent_at);

    return $this->apiResponse->returnSuccess($invoice, "Invoice paid!", 200);
}

这样做是支付选定的InvoiceItems(Invoice 的子模型)，并且，如果所有InvoiceItems 都被标记为支付，然后将invoices.status 更新为paid(或partially_paid)并将invoices.paid_at 更新为Carbon::now()(或null).

What this does is pays the selected InvoiceItems (child model of Invoice), and, if all InvoiceItems are marked as paid, then updates invoices.status to paid (or partially_paid) and invoices.paid_at to Carbon::now() (or null).

这一切正常，但不知何故，这段代码也在更新 sent_at(因此是 Log 语句).当代码加载 Invoice 时，在应用所有保存逻辑后，在保存后，最后在提交后，记录 sent_at 属性:

This all works fine, but somehow, this code is also updating sent_at (hence the Log statements). When the code loads the Invoice, after applying all save logic, right after saving and finally right after committing, the sent_at attribute is logged:

[2019-05-08 12:43:24] local.INFO: Load: 2019-05-08 12:42:50
[2019-05-08 12:43:24] local.INFO: 前: 2019-05-08 12:42:50
[2019-05-08 12:43:24] local.INFO: Post: 2019-05-08 12:42:50
[2019-05-08 12:43:24] local.INFO: Post Commit: 2019-05-08 12:42:50

[2019-05-08 12:43:24] local.INFO: Load: 2019-05-08 12:42:50
[2019-05-08 12:43:24] local.INFO: Pre: 2019-05-08 12:42:50
[2019-05-08 12:43:24] local.INFO: Post: 2019-05-08 12:42:50
[2019-05-08 12:43:24] local.INFO: Post Commit: 2019-05-08 12:42:50

如您所见，sent_at 时间戳始终为 2019-05-08 12:42:50.但是我一重新查询数据库，时间戳就是2019-05-08 12:43:24，也就是paid_at和的值updated_at 时间戳.

As you can see, the sent_at timestamp is consistently 2019-05-08 12:42:50. But as soon as I re-query the database, the timestamp is 2019-05-08 12:43:24, which is the value of the paid_at and updated_at timestamps.

(status, sent_at, paid_at, created_at, updated_at)

请注意，这是从 API 调用的，随后请求加载 Invoice 模型列表，该模型具有以下逻辑来确定附加逻辑:

Note this is called from an API, with a subsequent request to load a list of Invoice models, which has the following logic to determine so additional logic:

$cutoff = $this->sent_at->addDays(3)->endOfDay();

但我看不出这如何修改 sent_at 列(以下不会调用保存/更新，即使调用了，2019-05-08 12:43:24 不等于 addDays(3)->endOfDay();

But I don't see how that could modify the sent_at column (no save/update is called following, and even if it did, 2019-05-08 12:43:24 does not equate to addDays(3)->endOfDay();

有人见过这个吗?它在另一个视图中搞乱了一些排序逻辑，所以我最终需要修复它......

Has anyone seen this before? It's messing up some ordering logic in another view, so I need to fix it eventually...

编辑

如果我禁用 $invoice->save();，它的 updated_at 时间戳仍然更新，但我不知道为什么.而且，奇怪的是，禁用 $invoiceTransaction->save(); 和 $invoiceItem->save(); 不会导致 updated_at...确实会导致错误的数据，但仍在开发中.

"CREATE TABLE `invoices` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`user_id` int(11) NOT NULL,
`account_id` int(11) NOT NULL,
`description` text,
`subtotal` decimal(10,2) NOT NULL,
`grand_total` decimal(10,2) NOT NULL,
`status` enum('pending','sent','partially_paid','paid') NOT NULL DEFAULT 
'pending',
`sent_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`paid_at` timestamp NULL DEFAULT NULL,
`created_at` timestamp NULL DEFAULT NULL,
`updated_at` timestamp NULL DEFAULT NULL,
`deleted_at` timestamp NULL DEFAULT NULL,
PRIMARY KEY (`id`)
)
ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8"

ALTER TABLE invoices CHANGE sent_at sent_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP;