本篇是接着 laravel中使用WangEditor及多圖上傳(下篇)
因此咱們這裏不演示怎麼新建項目了。
下載以前的項目,完成安裝。
php
爲了不後面踩到vue版本的坑,請務必閱讀此部分
package.json
{ "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" } }
gulpfile.js
將原來的require('laravel-elixir-vue');
修改成require('laravel-elixir-vue-2');
css
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'); });
resource/assets/js/app.js
將原來的el: 'body'
改成el: '#app'
vue
const app = new Vue({ el: '#app' });
(若是以前沒有執行此操做)
jquery
npm install
咱們須要一個User模型(laravel附帶),一個Post模型和一個Favorite模型以及它們各自的遷移文件。
由於咱們以前建立過了Post
的模型,因此咱們只須要建立一個Favorite
模型便可。
webpack
php artisan make:model App\Models\Favorite -m
這會建立一個Favorite
模型以及遷移文件。
ios
posts
遷移表及favorites
的up
方法給posts
表在id
字段後面新增一個user_id
字段
laravel
php artisan make:migration add_userId_to_posts_table --table=posts
修改database/migrations/2018_01_18_145843_add_userId_to_posts_table.php
git
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
github
public function up() { Schema::create('favorites', function (Blueprint $table) { $table->increments('id'); $table->integer('user_id')->unsigned(); $table->integer('post_id')->unsigned(); $table->timestamps(); }); }
該favorites
表包含兩列:
web
user_id 被收藏文章的用戶ID。 post_id 被收藏的帖子的ID。
而後進行表遷移
php artisan migrate
由於咱們以前就已經建立過了,因此這裏就不須要重複建立了。
若是你沒有建立過用戶認證模塊,則須要執行php artisan make:auth
修改routes/web.php
Auth::routes(); Route::post('favorite/{post}', 'ArticleController@favoritePost'); Route::post('unfavorite/{post}', 'ArticleController@unFavoritePost'); Route::get('my_favorites', 'UsersController@myFavorites')->middleware('auth');
因爲用戶能夠將許多文章標記爲收藏夾,而且一片文章能夠被許多用戶標記爲收藏夾,因此用戶與最收藏的文章之間的關係將是多對多的關係。要定義這種關係,請打開User
模型並添加一個favorites()
app/User.php
注意post
模型的命名空間是App\Models\Post
因此注意要頭部引入use App\Models\Post;
public function favorites() { return $this->belongsToMany(Post::class, 'favorites', 'user_id', 'post_id')->withTimeStamps(); }
第二個參數是數據透視表(收藏夾)的名稱。第三個參數是要定義關係(User)的模型的外鍵名稱(user_id),而第四個參數是要加入的模型(Post)的外鍵名稱(post_id)。
注意到咱們連接withTimeStamps()到belongsToMany()。這將容許插入或更新行時,數據透視表上的時間戳(create_at和updated_at)列將受到影響。
由於咱們以前建立過了,這裏也不須要建立了。
若是你沒有建立過,請執行php artisan make:controller ArticleController
favoritePost
和unFavoritePost
兩個方法注意要頭部要引入use Illuminate\Support\Facades\Auth;
<?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(); } }
axios
模塊
npm install axios --save
resource/assets/js/bootstrap.js
在最後加入
import axios from 'axios'; window.axios = axios;
// resources/assets/js/components/Favorite.vue <template> <span> <a href="#" v-if="isFavorited" @click.prevent="unFavorite(post)"> <i class="fa fa-heart"></i> </a> <a href="#" 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>
在視圖組件使用以前,咱們先引入字體文件resource/views/layouts/app.blade.php
頭部引入字體文件
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" />
並在app.blade.php
添加個人收藏夾
連接
// 加在logout-form以後 <form id="logout-form" action="{{ url('/logout') }}" method="POST" style="display: none;"> {{ csrf_field() }} </form> <a href="{{ url('my_favorites') }}">個人收藏夾</a>
使用組件
// 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> endif
而後咱們要建立favorited()
打開app/Models/Post.php
增長favorited()
方法
注意要在頭部引用命名空間
use App\Models\Favorite;
use Illuminate\Support\Facades\Auth;
public function favorited() { return (bool) Favorite::where('user_id', Auth::id()) ->where('post_id', $this->id) ->first(); }
引入Favorite.vue
組件resources/assets/js/app.js
Vue.component('favorite', require('./components/Favorite.vue'));
編譯
npm run dev
效果圖
![]()
個人收藏夾
php artisan make:controller UsersController
修改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() { $myFavorites = Auth::user()->favorites; return view('users.my_favorites', compact('myFavorites')); } }
添加視圖文件
// resources/views/users/my_favorites.blade.php extends('layouts.app') @section('content') <div class="container"> <div class="row"> <div class="col-md-8 col-md-offset-2"> <div class="page-header"> <h3>My Favorites</h3> </div> @forelse ($myFavorites as $myFavorite) <div class="panel panel-default"> <div class="panel-heading"> <a href="/article/{{ $myFavorite->id }}"> {{ $myFavorite->title }} </a> </div> <div class="panel-body" style="max-height:300px;overflow:hidden;"> <img src="/uploads/{!! ($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
而後從新向一下根目錄routes/web.php
添加一條路由
Route::get('/', 'ArticleController@index');
最後效果圖
參考資料
Implement a Favoriting Feature Using Laravel and Vue.js
laravel 5.4 vue 收藏文章
github地址 https://github.com/pandoraxm/laravel-vue-favorites
原文連接 https://www.bear777.com/blog/laravel5-3-vue