调用非对象上的成员函数count()(Laravel 5) [英] Call to a member function count() on a non-object (Laravel 5)

问题描述

我有一个项目列表，可以单击并在其中(需要)显示项目名称，以及项目任务列表(ToDo应用程序)

I have a list of projects, where I can click on and it (needs to) show the project name, and the list of the projects' tasks (ToDo application)

但是当我单击某个项目时，会出现此错误.

But when I click on a certain project I get this error.

(将显示"H2"项目名称)

(The "H2" project name will show up)

h2>{{{ $project->name }}}</h2>

@if ( !$project->tasks->count())
    There are no tasks for this project.
@else
    <ul>
        @foreach( $project->tasks as $task)
            <li><a href="{{ route('projects.tasks.show', [$project->slug, $task->slug]) }}">{{ $task->name }}</a></li>
        @endforeach
    </ul>
@endif

推荐答案

$project->tasks是一个数组，您不能在该数组上调用count().因此，请尝试-

$project->tasks is an array and you cant call count() on the array. So try with -

count($project->tasks)

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