Question

我的数据库中有两个不同的表products和Ppurchases（库存明细），并使用以下控制器来获取库存清单。

public function stockapi($id)
    {
        $data = Ppurchase::where('product_id',$id)->get();

        $json_data = json_encode($data);
        $data = view('inventory::api.productapi', compact('json_data'));

        return response($data)->header("Content-Type","application/json; charset=utf-8");
    }

我正在关注JSON：

[
    {
        "id": 54,
        "product_id": 1,
        "purchase_id": 45,
        "batch": "32",
        "manufacture_date": "2017-10-16",
        "expiry_date": "2017-10-16",
        "quantity": 32,
        "invoice_price": 32,
        "selling_price": 3,
        "product_discount": 32,
        "created_at": "2017-10-24 05:31:48",
        "updated_at": "2017-10-24 05:31:48"
    },
    {
        "id": 56,
        "product_id": 1,
        "purchase_id": 46,
        "batch": "33",
        "manufacture_date": "2017-10-23",
        "expiry_date": "2017-10-25",
        "quantity": 32,
        "invoice_price": 23,
        "selling_price": 23,
        "product_discount": 23,
        "created_at": "2017-10-24 07:46:55",
        "updated_at": "2017-10-24 07:46:55"
    },
    {
        "id": 57,
        "product_id": 1,
        "purchase_id": 47,
        "batch": "df",
        "manufacture_date": "2017-10-10",
        "expiry_date": "2017-10-03",
        "quantity": 100,
        "invoice_price": 100,
        "selling_price": 100,
        "product_discount": 100,
        "created_at": "2017-10-24 11:58:27",
        "updated_at": "2017-10-24 11:58:27"
    }
]

现在我的问题从这里开始，
1）如何以人类可读的格式显示这些expiry_date和manufacture_date？ 2）如何获取剩余日期最少的产品batch到期？（另外）

Answer 1

将expiry_date和manufacture_date显示为人类可读格式，您可以撰写Accessor。您还可以使用Accessor引入新属性，以查找剩余的最少日期到期我想你有这样的模型

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Carbon\Carbon;

class Ppurchase extends Model
{

    public function getExpiryDateAttribute($value)
    {
        return Carbon::parse($value)->diffForHumans();
    }


    public function getManufactureDateAttribute($value)
    {
        return Carbon::parse($value)->diffForHumans();
    }

    public function getRemainingDaysAttribute()
    {
        return Carbon::parse($this->expiry_date)->diffForHumans(Carbon::parse($this->manufacture_date));
    }

}

使用此功能，您将获得人类可读格式的日期，您将获得一个新属性remaining_days，您可以根据需要使用该属性来过滤集合

有关详细信息，我建议您阅读此内容。 https://laravel.com/docs/5.5/eloquent-mutators#defining-an-accessor

以人类可读格式在阵列上的日期

1 个答案: