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(); }

<?phpnamespace 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');