Laravel从关系中采摘领域 [英] Laravel pluck fields from relations

问题描述

我有一个具有相关用户的卖方对象.我需要从LaravelCollective中选择一个，所以我需要做这样的事情:

I have a Seller object which has a related User. I need to fill a select from LaravelCollective so I need to make something like this:

{!! Form::selectGroup('seller_id', 'Seller', Seller::with('user')->pluck('user.first_name', 'id')->toArray(), null) !!}

问题是我无法从关系(user.first_name)中获取字段.

The problem is that I cannot take fields from relationships (user.first_name).

我该怎么办?

更新

我想避免这样做...

I want to avoid doing this...

<?php 
    $sellers = [];

    Seller::with('user')->get()->each(function ($seller) use (&$sellers) {
        $sellers[$seller->id] = $seller->user->first_name;
    });
?>

推荐答案

您可以使用Laravel的 pluck 方法为:

You can use Laravel's pluck method as:

$sellers = Seller::with('user')->get()->pluck('user.first_name', 'id')

这篇关于Laravel从关系中采摘领域的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！