laravel5.3 vue 实现收藏夹功能实例详解

{
 "private": true,
 "scripts": {
 "prod": "gulp --production",
 "dev": "gulp watch"
 },
 "devDependencies": {
 "bootstrap-sass": "^3.3.7",
 "gulp": "^3.9.1",
 "jquery": "^3.1.0",
 "laravel-elixir": "^6.0.0-14",
 "laravel-elixir-vue-2": "^0.2.0",
 "laravel-elixir-webpack-official": "^1.0.2",
 "lodash": "^4.16.2",
 "vue": "^2.0.1",
 "vue-resource": "^1.0.3"
 }
}

const elixir = require('laravel-elixir');​
require('laravel-elixir-vue-2');​
/*
 |--------------------------------------------------------------------------
 | Elixir Asset Management
 |--------------------------------------------------------------------------
 |
 | Elixir provides a clean, fluent API for defining some basic Gulp tasks
 | for your Laravel application. By default, we are compiling the Sass
 | file for our application, as well as publishing vendor resources.
 |
 */​
elixir(mix => {
 mix.sass('app.scss')
 .webpack('app.js');
});

const app = new Vue({
 el: '#app'
});

php artisan make:model App\Models\Favorite -m

php artisan make:migration add_userId_to_posts_table --table=posts

public function up()
 {
 Schema::table('posts', function (Blueprint $table) {
  $table->integer('user_id')->unsigned()->after('id');
 });
 }
database/migrations/2018_01_18_142146_create_favorites_table.php ​ 
public function up()
 {
 Schema::create('favorites', function (Blueprint $table) {
  $table->increments('id');
  $table->integer('user_id')->unsigned();
  $table->integer('post_id')->unsigned();
  $table->timestamps();
 });
 }

Auth::routes();
Route::post('favorite/{post}', 'ArticleController@favoritePost');
Route::post('unfavorite/{post}', 'ArticleController@unFavoritePost');
Route::get('my_favorites', 'UsersController@myFavorites')->middleware('auth');

public function favorites()
 {
 return $this->belongsToMany(Post::class, 'favorites', 'user_id', 'post_id')->withTimeStamps();
 }

<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Models\Post;
use Illuminate\Support\Facades\Auth;
class ArticleController extends Controller
{
 public function index()
 {
 $data = Post::paginate(5);
 return view('home.article.index', compact('data'));
 }
 public function show($id)
 {
 $data = Post::find($id);
 return view('home.article.list', compact('data'));
 }
 public function favoritePost(Post $post)
 {
 Auth::user()->favorites()->attach($post->id);
 return back();
 }
 public function unFavoritePost(Post $post)
 {
 Auth::user()->favorites()->detach($post->id);
 return back();
 }
}

import axios from 'axios';
window.axios = axios;

// resources/assets/js/components/Favorite.vue
<template>
 <span>
 <a href="#" rel="external nofollow" rel="external nofollow" v-if="isFavorited" @click.prevent="unFavorite(post)">
  <i class="fa fa-heart"></i>
 </a>
 <a href="#" rel="external nofollow" rel="external nofollow" v-else @click.prevent="favorite(post)">
  <i class="fa fa-heart-o"></i>
 </a>
 </span>
</template>
<script>
 export default {
 props: ['post', 'favorited'],
​
 data: function() {
  return {
  isFavorited: '',
  }
 },
 mounted() {
  this.isFavorited = this.isFavorite ? true : false;
 },
 computed: {
  isFavorite() {
  return this.favorited;
  },
 },
 methods: {
  favorite(post) {
  axios.post('/favorite/'+post)
   .then(response => this.isFavorited = true)
   .catch(response => console.log(response.data));
  },
  unFavorite(post) {
  axios.post('/unfavorite/'+post)
   .then(response => this.isFavorited = false)
   .catch(response => console.log(response.data));
  }
 }
 }
</script>

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" />

// 加在logout-form之后
<form id="logout-form" action="{{ url('/logout') }}" method="POST" style="display: none;">
 {{ csrf_field() }}
</form>​
<a href="{{ url('my_favorites') }}" rel="external nofollow" >我的收藏夹</a>

// resources/views/home/article/index.blade.php​
if (Auth::check())
 <div class="panel-footer">
 <favorite
  :post={{ $list->id }}
  :favorited={{ $list->favorited() ? 'true' : 'false' }}
 ></favorite>
 </div>

public function favorited()
 {
 return (bool) Favorite::where('user_id', Auth::id())
    ->where('post_id', $this->id)
    ->first();
 }​

Vue.component('favorite', require('./components/Favorite.vue'));

npm run dev

php artisan make:controller UsersController

app/Http/Controllers/UsersController.php ​ 
<?php​
namespace App\Http\Controllers;​
use Illuminate\Http\Request;​
use Illuminate\Support\Facades\Auth;​
class UsersController extends Controller
{
 public function myFavorites()
 {
 $myFavorites = Auth::user()->favorites;
 return view('users.my_favorites', compact('myFavorites'));
 }
}

// resources/views/users/my_favorites.blade.php
​
extends('layouts.app')
​
@section('content')
<div class="container">
 <div class="row">
 <div class="col-md-8 col-md-offset-2">
  <div class="page-header">
  <h3>My Favorites</h3>
  </div>
  @forelse ($myFavorites as $myFavorite)
  <div class="panel panel-default">
   <div class="panel-heading">
   <a href="/article/{{ $myFavorite->id }}" rel="external nofollow" >
    {{ $myFavorite->title }}
   </a>
   </div>
​
   <div class="panel-body" style="max-height:300px;overflow:hidden;">
   <img src="/uploads/{!! ($myFavorite->cover)[0] !!}" style="max-width:100%;overflow:hidden;" alt="">
   </div>
   @if (Auth::check())
   <div class="panel-footer">
    <favorite
    :post={{ $myFavorite->id }}
    :favorited={{ $myFavorite->favorited() ? 'true' : 'false' }}
    ></favorite>
   </div>
   @endif
  </div>
  @empty
  <p>You have no favorite posts.</p>
  @endforelse
  </div>
 </div>
</div>
@endsection

Route::get('/', 'ArticleController@index');