Question

我的Javascript中有以下一行

#!/bin/bash

array=(*)  # this is the array of files to shuffle
# echo ${array[@]}
for dummy in "${array[@]}"; do  # do loop length(array) times; once for each file
    length=${#array[@]}
    randomi=$(( $RANDOM % $length ))  # select a random index

    filename=${array[$randomi]}
    echo "Processing: '$filename'"  # do something with the file

    unset -v "array[$randomi]"  # set the element at index $randomi to NULL
    array=("${array[@]}")  # remove NULL elements introduced by unset; copy array
done

现在，如果我未经过身份验证，此行会抛出错误

    let roles =  {!! Auth::user()->roles()->get()  !!};

虽然我只是想重定向到/ login页面！

有人能告诉我怎么做吗？在控制器中执行此操作没有问题，但在页面本身上我尝试了像

这样的Blade命令

Call to a member function roles() on null (View: D:\data\Project\resources\views\booking.blade.php)

... @endif

但没有成功！

Answer 1

您可以尝试以下操作：

let roles =  {!! Auth::user() ? Auth::user()->roles()->get() : ''  !!};

如何检查Auth :: user（） - ＆gt; roles（）如果在Blad中为null

1 个答案: