以人类可读格式排列的日期

Question

我的数据库中有一个 products 和 Ppurchases（库存详细信息）两个不同的表，并使用以下控制器获取库存列表。

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) 如何获取产品的 batch 剩余到期天数最少？（另外）

Answer 1

将 expiry_date 和 manufacture_date 显示为人类可读格式，您可以编写 Accessor。您还可以使用访问器引入新属性来查找最少剩余到期日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));
    }

}

使用它，您将获得人类可读格式的日期，并且您将获得一个新属性 remaining_days，您可以根据需要利用它来过滤集合

For more info I recommand you to read this. https://laravel.com/docs/5.5/eloquent-mutators#defining-an-accessor

以人类可读格式排列的日期

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