文章对应分类多个

app/Admin/Controllers/Article/IndexController.php

@@ -2,6 +2,7 @@
 
 namespace App\Admin\Controllers\Article;
 
+use App\Admin\Selectable\CategorySelectAble;
 use App\Models\Article;
 use App\Models\Category;
 use Encore\Admin\Controllers\AdminController;
@@ -20,7 +21,7 @@ class IndexController extends AdminController
         $grid->filter(function ($filter) {
             $filter->column(1 / 2, function ($filter) {
                 $filter->like('title', '文章标题');
-                $filter->equal('category.id', '所属分类')->select(Category::selectOptions(function ($model) {
+                $filter->equal('categories.id', '所属分类')->select(Category::selectOptions(function ($model) {
                     return $model->where('status', 1)->whereIn('type', [Category::TYPE_ARTICLE, Category::TYPE_SHOW]);
                 }, '所有分类'));
             });
@@ -30,7 +31,9 @@ class IndexController extends AdminController
 
         $grid->column('id', '#ID#');
         $grid->column('cover', '封面图片')->image('', 100);
-        $grid->column('category.title', '所属分类');
+        $grid->column('所属分类')->display(function () {
+            return $this->categories()->pluck('title');
+        })->label();
         $grid->column('title', '文章标题');
         $grid->column('sort', '序号');
         $states = [
@@ -48,15 +51,7 @@ class IndexController extends AdminController
         $form = new Form(new Article);
 
         $form->text('title', '文章标题')->rules('min:2');
-        $form->select('category_id', '所属分类')
+        $form->belongsToMany('categories', CategorySelectAble::class, __('关联分类'));
-             ->options(Category::selectOptions(function ($model) {
-                 return $model->where('status', 1)->whereIn('type', [Category::TYPE_ARTICLE, Category::TYPE_SHOW]);
-             }, '选择分类'))
-             ->rules('required|min:1', [
-                 'required' => '必须选择所属分类',
-                 'min'      => '必须选择所属分类',
-             ]);
-
         $form->textarea('description', '内容简介')->rules('max:350');
 
         $form->list('subjoin', '附加')

app/Admin/Selectable/CategorySelectAble.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace App\Admin\Selectable;
+
+use App\Models\Category;
+use Encore\Admin\Grid\Filter;
+use Encore\Admin\Grid\Selectable;
+
+class CategorySelectAble extends Selectable
+{
+
+    public $model = Category::class;
+
+    public static function display()
+    {
+        return function ($value) {
+            if (is_array($value)) {
+                return implode(';', array_column($value, 'title'));
+            }
+
+            return optional($this->categories)->title;
+        };
+    }
+
+    public function make()
+    {
+        $this->model()->where('status', 1);
+
+        $this->column('id', 'ID');
+        $this->column('title', '分类名称');
+        $this->column('type', '类型')->using(Category::TYPES);
+
+        $this->filter(function (Filter $filter) {
+            $filter->like('title', '分类名称');
+            $filter->equal('parent.id', '所属分类')
+                   ->select(Category::selectOptions(function ($model) {
+                       return $model->where('status', 1)
+                                    ->whereIn('type', [Category::TYPE_ARTICLE, Category::TYPE_SHOW]);
+                   }, '所有分类'));
+            $filter->equal('type', '类型')->select(Category::TYPES);
+        });
+    }
+
+}

app/Helpers/function.php

@@ -28,7 +28,11 @@ function getOneCategory($categoryId, $return = '')
  */
 function getOneArticleBYCate($categoryId, $result = '')
 {
-    $info = Article::where('category_id', $categoryId)->latest('sort')->latest()->first();
+    $info = Article::where('status', 1)
+                   ->ByCategory($categoryId)
+                   ->latest('sort')
+                   ->latest()
+                   ->first();
 
     if ($info) {
         if ($result) {
@@ -54,8 +58,8 @@ function getOneArticleBYCate($categoryId, $result = '')
 function getArticlesBYCate($categoryId, $take = 8, $mark = 'one')
 {
     if ($mark == 'one') {
-        $articles = Article::where('category_id', $categoryId)
+        $articles = Article::where('status', 1)
-                           ->where('status', 1)
+                           ->ByCategory($categoryId)
                            ->latest('sort')
                            ->latest()
                            ->take($take)
@@ -64,8 +68,8 @@ function getArticlesBYCate($categoryId, $take = 8, $mark = 'one')
         $cate = Category::find($categoryId);
         $ids  = $cate->getAllChildrenId();
 
-        $articles = Article::whereIn('category_id', $ids)
+        $articles = Article::where('status', 1)
-                           ->where('status', 1)
+                           ->ByCategory($ids)
                            ->latest('sort')
                            ->latest()
                            ->take($take)

app/Http/Controllers/ArticleController.php

@@ -13,10 +13,8 @@ class ArticleController extends Controller
         if ($article->url) {
             return redirect($article->url);
         }
-        $category = $article->category;
-        $parent   = $category->getTop();
 
-        return view('articles.show', compact('article', 'category', 'parent'));
+        return view('articles.show', compact('article'));
     }
 
 }

app/Http/Controllers/CategoryController.php

@@ -11,7 +11,7 @@ class CategoryController extends Controller
     /**
      * 显示分类
      * @param Category $category [description]
-     * @return [type]             [description]
+     * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Contracts\View\Factory|\Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector|\Illuminate\View\View [type]             [description]
      */
     public function index(Category $category)
     {

app/Http/Controllers/TestController.php

@@ -3,6 +3,7 @@
 namespace App\Http\Controllers;
 
 use App\Models\Article;
+use App\Models\ArticleCategory;
 use App\Models\Category;
 use App\Models\DedeArchive;
 use App\Models\DedeArctype;
@@ -10,6 +11,7 @@ use App\Traits\Tree;
 
 class TestController extends Controller
 {
+
     use Tree;
 
     public function index()
@@ -17,6 +19,22 @@ class TestController extends Controller
 
     }
 
+    public function set_article_category()
+    {
+        $articles = Article::whereHas('category')
+                           ->chunk(200, function ($articles) {
+                               foreach ($articles as $article) {
+                                   ArticleCategory::create([
+                                       'article_id'  => $article->id,
+                                       'category_id' => $article->category_id,
+                                   ]);
+                               }
+                           });
+
+        return true;
+
+    }
+
     public function setCateArticle()
     {
         $article = [];
@@ -58,7 +76,7 @@ class TestController extends Controller
         dump(count($oldids));
         dump($diffids);
         die();
-        $map = [
+        $map  = [
             'id' => ['in', $diffids],
         ];
         $list = DedeArchive::whereIn('id', $diffids)->get();
@@ -88,7 +106,7 @@ class TestController extends Controller
             dd('已经导入过数据');
         }
         $categorys = Category::get();
-        $error     = $success     = [];
+        $error     = $success = [];
         DedeArchive::whereNotNull('litpic')->chunk(200, function ($articles) use ($categorys) {
 
             foreach ($articles as $article) {
@@ -128,7 +146,9 @@ class TestController extends Controller
         if ($categorys->count()) {
             dd('已经导入过数据');
         }
-        $lists = DedeArctype::where('ishidden', 0)->select('id', 'reid as parent_id', 'typename as title', 'content')->get();
+        $lists = DedeArctype::where('ishidden', 0)
+                            ->select('id', 'reid as parent_id', 'typename as title', 'content')
+                            ->get();
         $list  = Tree::list2tree($lists->toArray(), 'id', 'parent_id', 'children', 0);
 
         foreach ($list as $key => $value) {
@@ -151,6 +171,7 @@ class TestController extends Controller
             'content'   => $category['content'],
             'status'    => 1,
         ];
+
         return $data;
     }
 

app/Models/Article.php

@@ -4,11 +4,12 @@ namespace App\Models;
 
 use App\Models\Traits\BelongsToCategory;
 use App\Models\Traits\HasOneCover;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 
 class Article extends Model
 {
 
-    use HasOneCover, BelongsToCategory;
+    use HasOneCover;
 
     /**
      * 应进行类型转换的属性
@@ -23,4 +24,35 @@ class Article extends Model
         return route('article.show', $this);
     }
 
+    /**
+     * Notes: 关联分类
+     * @Author: 玄尘
+     * @Date  : 2021/4/2 9:11
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
+     */
+    public function categories(): BelongsToMany
+    {
+        return $this->belongsToMany(Category::class)
+                    ->using(ArticleCategory::class);
+    }
+
+    /**
+     * Notes: description
+     * @Author: 玄尘
+     * @Date  : 2021/4/2 9:17
+     * @param $query
+     * @param $ids
+     * @return mixed
+     */
+    public function scopeByCategory($query, $ids)
+    {
+        if (!is_array($ids)) {
+            $ids = [$ids];
+        }
+
+        return $query->whereHas('categories', function ($q) use ($ids) {
+            $q->whereIN('id', $ids);
+        });
+    }
+
 }

app/Models/ArticleCategory.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Relations\Pivot;
+
+class ArticleCategory extends Pivot
+{
+
+    //
+}

app/Models/Category.php

@@ -4,6 +4,7 @@ namespace App\Models;
 
 use Encore\Admin\Traits\AdminBuilder;
 use Encore\Admin\Traits\ModelTree;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 
 class Category extends Model
 {
@@ -36,7 +37,7 @@ class Category extends Model
                 return $this->belongsTo(Article::class);
                 break;
             case self::TYPE_ARTICLE:
-                return $this->hasMany(Article::class);
+                return $this->belongsToMany(Article::class);
                 break;
             case self::TYPE_ADVERT:
                 return $this->hasMany(Advert::class);
@@ -61,6 +62,11 @@ class Category extends Model
         return $this->belongsTo(Article::class);
     }
     
+    public function articles(): BelongsToMany
+    {
+        return $this->belongsToMany(Article::class);
+    }
+
     /**
      * Notes: 获取当前分类及子分类ID
      * @Author: <C.Jason>

database/migrations/2021_04_01_151442_create_article_categories_table.php

@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreateArticleCategoriesTable extends Migration
+{
+
+    /**
+     * Run the migrations.
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('article_category', function (Blueprint $table) {
+            $table->foreignId('article_id');
+            $table->foreignId('category_id');
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('article_categories');
+    }
+
+}

resources/views/articles/show.blade.php

@@ -7,43 +7,43 @@
     <!-- 详情 -->
     <div class="details">
         <div class="contant">
-            <div class="page-left">
+            {{--            <div class="page-left">--}}
-                <div class="pagelist">
+            {{--                <div class="pagelist">--}}
-                    <h1>{{ $parent->title }}</h1>
+            {{--                    <h1>{{ $parent->title }}</h1>--}}
-                    <ul class="listbox">
+            {{--                    <ul class="listbox">--}}
-                        @if ($parent->children->isNotEmpty())
+            {{--                        @if ($parent->children->isNotEmpty())--}}
-                            @foreach ($parent->children as $children)
+            {{--                            @foreach ($parent->children as $children)--}}
-                                <li @if($category->id==$children->id) class="active" @endif>
+            {{--                                <li @if($category->id==$children->id) class="active" @endif>--}}
-                                    <a href="{{ $children->link }}">{{ $children->title }}</a>
+            {{--                                    <a href="{{ $children->link }}">{{ $children->title }}</a>--}}
-                                </li>
+            {{--                                </li>--}}
-                            @endforeach
+            {{--                            @endforeach--}}
-                        @endif
+            {{--                        @endif--}}
-                    </ul>
+            {{--                    </ul>--}}
-                </div>
+            {{--                </div>--}}
-            </div>
+            {{--            </div>--}}
-            <div class="page-right">
+            {{--            <div class="page-right">--}}
-                <div class="pagelujing">
+            {{--                <div class="pagelujing">--}}
-                    <div class="name">{{ $category->title }}</div>
+            {{--                    <div class="name">{{ $category->title }}</div>--}}
-                    <span>
+            {{--                    <span>--}}
-                        您当前所在位置：<a href="/">首页</a>
+            {{--                        您当前所在位置：<a href="/">首页</a>--}}
-                        @if ($category->id!=$parent->id)
+            {{--                        @if ($category->id!=$parent->id)--}}
-                            &gt; <a href="{{ $parent->link }}">{{ $parent->title }}</a> &gt;
+            {{--                            &gt; <a href="{{ $parent->link }}">{{ $parent->title }}</a> &gt;--}}
-                        @endif
+            {{--                        @endif--}}
-                        &gt; <a href="{{ $category->link }}">{{ $category->title }}</a>
+            {{--                        &gt; <a href="{{ $category->link }}">{{ $category->title }}</a>--}}
-                    </span>
+            {{--                    </span>--}}
-                </div>
+            {{--                </div>--}}
-                <div class="news-txt ny mg-t-b">
+            <div class="news-txt ny mg-t-b">
-                    <div class="biaoti">{{ $article->title }}</div>
+                <div class="biaoti">{{ $article->title }}</div>
-                    <div class="sshuomign"><span>发布时间：{{ $article->created_at->format('Y-m-d') }}</span></div>
+                <div class="sshuomign"><span>发布时间：{{ $article->created_at->format('Y-m-d') }}</span></div>
-                    <div class="article_txt">
+                <div class="article_txt">
-                        {{--                        @if ($article->cover)--}}
+                    {{--                        @if ($article->cover)--}}
-                        {{--                            <img src="{{ $article->cover_path }}">--}}
+                    {{--                            <img src="{{ $article->cover_path }}">--}}
-                        {{--                        @endif--}}
+                    {{--                        @endif--}}
-                        {!! $article->content !!}
+                    {!! $article->content !!}
-                    </div>
                 </div>
             </div>
         </div>
+        {{--    </div>--}}
     </div>
     <!-- end 详情 -->
 @endsection

routes/web.php

@@ -17,6 +17,7 @@ Route::get('articles/{article}', 'ArticleController@show')->name('article.show')
 Route::get('category/{category}', 'CategoryController@index')->name('category.show');
 
 //以下为导入数据
+Route::get('test/set_article_category', 'TestController@set_article_category');
 Route::get('test/set_category', 'TestController@set_category');
 Route::get('test/set_article', 'TestController@set_article');
 Route::get('test/set_cate_article', 'TestController@setCateArticle');