doutingyou2198 2017-10-03 17:50
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Laravel Blade：仅在扩展时给出变量时显示元标记

This is the beginning of my master.blade.php 

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>@yield('title')</title>
    <meta name="description" content="@yield('meta_desc')">

If I extend this to a page where no meta_desc is given like this:

@extends('layouts.index')

@section('title')
A nice title
@endsection

The this page has in the header a meta-tag with an empty description 

<meta name="description" content="">

However I would like to skip the meta-tag completely, when no meta_desc is given. I tried to change the code in the master.blade.php to

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>@yield('title', )</title>
    @if(!empty($meta_desc))
    <meta name="description" content="@yield('meta_desc')">
    @endif

but then the meta-tag

<meta name="description" content="">

would be always be missing then. How can I fix it?

  • 写回答

1条回答 默认 最新

  • duanjiu2701 2017-10-05 08:30
    关注

    you can do something like this

    master.blade.php

    <!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>@yield('title')</title>
    @if($metaDesc != "")
       <meta name="description" content="{{ $metaDesc }}">
    @endif

    Controller

    $metaDesc = "Testing";
        return view('test', compact('metaDesc'));

    test.blade.php

    @extends('layouts.master')

@section('title', 'Testing')

@section('content')
    Lorem ipsum dolor sit amet, consectetur adipisicing elit. Aspernatur consectetur eligendi esse id praesentium ullam! Alias asperiores, consectetur delectus, dicta facilis impedit itaque iure magni nisi odio perferendis tenetur ut!
@endsection

    so basically what i've done is passed the meta description variable to the master layout and there if the variable is "" then we don't show the <meta> at all..

    Feel free to reach out if any doubts..

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

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