Laravel 使用OctoberCMS RainLab博客从不同类别获取组合帖子

我正在使用10月份的Rain Lab Post。 我使用blogPost组件并从单个类别获取帖子没有问题。例如，这是一个部分，其中显示类别中的最后5篇文章

[blogPosts]
pageNumber = "{{ :page }}"
categoryFilter = "{{ slug }}"
postsPerPage = 5
noPostsMessage = "No news in this category"
sortOrder = "published_at desc"
categoryPage = 404
postPage = "singlePost"
==
<li> <a href="#">{{category.name}}</a>
    <ul class="drop-down full-width col-5 hover-expand">
        <li class="validation">
            <h2 class="mm-title">{{category.name}}</h2>
        </li>
        {% for post in posts %}
        <li>
            {% for image in post.featured_images|slice(0,1) %}
                <a href="{{ post.url }}"><img src="{{ image.path }}" alt=""></a>
            {% endfor %}
            <h3><a href="{{ post.url }}">{{post.title}}</a></h3>
        </li>
        {% endfor %}
    </ul>
</li>

[博客帖子]
pageNumber=“{{:page}”
categoryFilter=“{{slug}}”
postsPerPage=5
noPostsMessage=“此类别中没有新闻”
sortOrder=“在描述中发布”
类别页=404
postPage=“singlePost”
==



{{category.name}

{posts%%中的post为%s}

{后期特色图片中的图片百分比|切片（0,1）%}
{%endfor%}

{%endfor%}

但是现在，我在主页上工作，希望显示所有类别的最后一篇文章。每个类别1个，组合5个类别

有人知道怎么做

---

提前感谢

这样，您必须在页面/布局的代码部分手动获取数据

function onStart() {
$first_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 1)->first();
$second_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 2)->first();
$third_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 3)->first();
$fourth_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 4)->first();
$fifth_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 5)->first();

$array = $first_category_post->merge($second_category_post);
$array = $array->merge($third_category_post);
$array = $array->merge($fourth_category_post);
$array = $array->merge($fifth_category_post);

$this['posts'] = $array;
}

另一个解决方案是使用常用的php

array\u merge

function onStart() {
$first_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 1)->first();
$second_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 2)->first();
$third_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 3)->first();
$fourth_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 4)->first();
$fifth_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 5)->first();

$array = array_merge($first_category_post->toArray(), $second_category_posts->toArray());
$array = array_merge($array, $third_category_post->toArray());
$array = array_merge($array, $fourth_category_post->toArray());
$array = array_merge($array, $fifth_category_post->toArray());

$this['posts'] = $array->toJson();
}

---

这样，您必须在页面/布局的代码部分手动获取数据

function onStart() {
$first_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 1)->first();
$second_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 2)->first();
$third_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 3)->first();
$fourth_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 4)->first();
$fifth_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 5)->first();

$array = $first_category_post->merge($second_category_post);
$array = $array->merge($third_category_post);
$array = $array->merge($fourth_category_post);
$array = $array->merge($fifth_category_post);

$this['posts'] = $array;
}

另一个解决方案是使用常用的php

array\u merge

function onStart() {
$first_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 1)->first();
$second_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 2)->first();
$third_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 3)->first();
$fourth_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 4)->first();
$fifth_category_post = \Rainlab\Blog\Models\Post::orderBy('id', 'desc')->where('category_id', 5)->first();

$array = array_merge($first_category_post->toArray(), $second_category_posts->toArray());
$array = array_merge($array, $third_category_post->toArray());
$array = array_merge($array, $fourth_category_post->toArray());
$array = array_merge($array, $fifth_category_post->toArray());

$this['posts'] = $array->toJson();
}

---

多亏了艾哈迈德·埃萨姆（Ahmed Essam）的第一个建议，我以下一种方式解决了这个问题：

function onStart(){
   $categories = Db::table('rainlab_blog_categories')->get();
   foreach ($categories as $key=>$category){
      if($category->slug != 'uncategorized'){
         $first = \Rainlab\Blog\Models\Category::with('posts')->where('id',$category->id)->first();
         $data[] = $first->posts[0];
      }
   }
   $this['posts'] = $data;
}

在模板中，我可以这样使用

{% for post in posts %}
    <li class="col-md-6 col-sm-6">
        <div id="container">

            {% for image in post.featured_images | slice(0,1) %}
               <div class="thumb"><img src="{{image.path}}" alt=""></div>
            {% endfor %}

            <div class="content">

                {% for category in post.categories %}
                    <div class="cat">{{category.name}</div>
                {% endfor %}

                <h3><a href="{{ post.url }}">{{ post.title )}}</a></h3>
            </div>
        </div>
    </li>
{% endfor %}

{%for posts in posts%}

{post.Characterized|U图像中图像的百分比|切片（0,1）%}
{%endfor%}
{post.categories%中的类别为%s}
{{category.name}
{%endfor%}

{%endfor%}

多亏了艾哈迈德·埃萨姆的第一个建议，我用下一种方法解决了这个问题：

function onStart(){
   $categories = Db::table('rainlab_blog_categories')->get();
   foreach ($categories as $key=>$category){
      if($category->slug != 'uncategorized'){
         $first = \Rainlab\Blog\Models\Category::with('posts')->where('id',$category->id)->first();
         $data[] = $first->posts[0];
      }
   }
   $this['posts'] = $data;
}

在模板中，我可以这样使用

{% for post in posts %}
    <li class="col-md-6 col-sm-6">
        <div id="container">

            {% for image in post.featured_images | slice(0,1) %}
               <div class="thumb"><img src="{{image.path}}" alt=""></div>
            {% endfor %}

            <div class="content">

                {% for category in post.categories %}
                    <div class="cat">{{category.name}</div>
                {% endfor %}

                <h3><a href="{{ post.url }}">{{ post.title )}}</a></h3>
            </div>
        </div>
    </li>
{% endfor %}

{%for posts in posts%}

{post.Characterized|U图像中图像的百分比|切片（0,1）%}
{%endfor%}
{post.categories%中的类别为%s}
{{category.name}
{%endfor%}

{%endfor%}

谢谢，你给了我提示，但有一个问题：category\u id字段在另一个表中。有3个表：rainlab\u blog\u posts；rainlab\u blog\u categories；rainlab\u blog\u post\post=\rainlab\blog\Models\post:：orderBy（'id'，desc'）->where（'category\u id'，1）->first（）；返回错误，因为“category_id”位于rainlab_blog_posts_categories关系表中。谢谢，您给了我提示，但有一个问题：category_id字段位于其他表中。共有3个表：rainlab_blog_posts；rainlab_blog_categories；rainlab_blog_posts_categories；使用：$first_category_post=\rainlab\blog\Models\post:：orderBy（'id'，'desc'）->where（'category_id'，1）->first（）；返回错误，因为'category_id'在rainlab_blog_posts_categories关系表中。