Mysql 10月cms查询加载时间长

我正在尝试优化这个嵌套查询，它需要很长时间才能加载

基本思想是把属于一个部门的所有系列，中间属于属于多个部门和多个系列的产品。 表结构

部门**产品**系列

在这些模型中，关系的定义如下：部门模型

public $belongsToMany  = [
      'products' => [
        '\depcore\parts\Models\Product',
        'table' => 'depcore_parts_products_departments',
      ],
      // 'series' => [
      //   '\depcore\parts\Models\Series',
      //   'table' => 'depcore_parts_products_series',
      // ]
    ];

系列模型

public $hasMany = [
      'products' => [
        '\depcore\parts\Models\Product',
        'table' => 'depcore_parts_products_departments',
      ]
    ];

产品模型

public $belongsToMany = [
      'series' => [
        'depcore\parts\Models\Series',
        'table' => 'depcore_parts_products_series',
        'order' => 'name',
        ],
      'departments' => [
        'depcore\parts\Models\Department',
        'table' => 'depcore_parts_products_departments',
        // 'order' => 'name'
        ]
    ];

在Department模型中，我创建了一个方法来检索属于Department的所有系列，这些系列在分析后导致了一些严重的性能问题

public function series (){

      $seriesArray = array( );
      $products = $this->products()->remember(100)->get();
      foreach ($products as $product) {
        $productSeries = $product->series()->remember(100)->get();
        foreach ($productSeries as $series) {
            if (!isset($seriesArray[$series->id]) and $series->published )
                $seriesArray[$series->id] = $series;
        }
      }

     return \Illuminate\Database\Eloquent\Collection::make($seriesArray);

    }

我想这可以通过原始SQL或更好的活动记录实现来实现，但我在这两方面都有困难

我后来添加了

memory（）

方法，但没有结果。 目前网页的加载时间约为20秒。删除此代码时，会立即删除

任何建议都将不胜感激

从表结构来看，我想这将是为了获得所需结果而运行的适当SQL命令

SELECT DISTINCT series_id FROM depcore_parts_products_series WHERE product_id IN (SELECT DISTINCT product_id FROM depcore_parts_products_departments WHERE department_id = 3);

此查询仅在中间表上运行，并获得

系列\u id

的正确结果（在phpmyadmin中）（以部门\u id=3为例）

使用Hardik Satasiya代码，我不得不更改几行，否则视图将不会显示任何序列，而只是空行

public function series (){

        $sql = 'SELECT DISTINCT series_id FROM depcore_parts_products_series WHERE product_id IN (SELECT DISTINCT product_id FROM depcore_parts_products_departments WHERE department_id = :dep_id)';

        $data = ['dep_id' => $this->id];
        $query = \DB::select($sql, $data);
        $data = $query;

        $ids = array();
        // I had to rewrite this pare and make it more inelegant still 
        // but the refresh method appeared to made it step out the execution cycle 
        foreach ($data as $key => $value) {
            $ids[] = $value->series_id;
        }

        // in $data we are passing only id information
        // so this records have only id, not db all attributes
        // what ever you pass in $data will become model attributes if its in list
        $collection = \depcore\parts\Models\Series::hydrate($ids);
        return Series::published()->whereIn('id',$ids)->get();

    }

这个街区是局部的

<div class="element-grid">
    <h4 {% if hideChildren|length and departmentModel.id not in filters.departments %} class='inactive' {% endif %}  ><a href="{{ url('/')}}/parts?Filter[departments][]={{ departmentModel.id }}">{{ departmentModel.name }}</a></h4>
    {% if not hideChildren|length %}
    <div class="list">
      <div class="block left-block">
          {% if departmentModel.getChildren|length %}
              <ul class='departments'>
                {% for child in departmentModel.getChildren %}
                     {% if child.published %}
                        <li><strong><a href="{{ url('/')}}/parts?Filter[departments][]={{ departmentModel.id }}&Filter[departments][]={{ child.id }}">{{ child.name }}</a></li></strong>
                     {% endif %}

                {% endfor %}
              </ul>
          {% endif %}
         <ul class="series">
           {% for series in departmentModel.departmentSeries.series|slice(0,10) %}
             <li><a href="{{ url('/')}}/parts?Filter[departments][]={{ departmentModel.id }}&{{ departmentModel.departmentSeries.childrenString }}&Filter[series][]={{ series.id }}">{{ series.name }}</a></li>
           {% endfor %}
         </ul>
        </div>
        <div class="block right-block">
             <ul class="series series-right">
                {% for series in departmentModel.departmentSeries.series|slice(10,length) %}
                    <li><a href="{{ url('/')}}/parts?Filter[departments][]={{ departmentModel.id }}&{{ departmentModel.departmentSeries.childrenString }}&Filter[series][]={{ series.id }}">{{ series.name }}</a></li>
                {% endfor %}
             </ul>
        </div>
    </div>
    <img src="{{ departmentModel.image.file_name | media }}" alt="">
    {% endif %}
</div>

---

您可以利用原始查询并将

获取的id

转换为您可以编写此代码的模型

$sql = 'SELECT DISTINCT series_id FROM depcore_parts_products_series WHERE product_id IN (SELECT DISTINCT product_id FROM depcore_parts_products_departments WHERE department_id = :dep_id');

$data = ['dep_id' => 2];
$query = \DB::select($sql, $data);
$data = $query;

foreach ($data as $model) {
    $ids[] = $model->series_id;
}

$returnData = Series::whereIn('id',$ids)->get();
// dd($returnData);

return $returnData;

如果您发现任何困难，请评论

使现代化 我的部门型号

和

页面代码部分

我正在使用您提供的

html/partial

。它似乎在这里工作

---

确定所需的一些详细信息

系列型号

=>表

depcore\u零件产品\u部门

是

depcore\u零件产品\u系列

对吗？接下来，我们不能将

部门id

添加到系列模型中，这样它就不会产生问题（不确定您的db架构），但我们可以使用它来避免参考链，系列可以指导点部门，而不是查看产品。我的观点是，您可能有其他用例，如果您有其他用例，并且上面的评论没有帮助，那么我们可以编写

raw sql

，让我们知道，这样我们就可以准备

raw sql

，我试图避免通过部门复制多对多关系。正如你所指出的，这些是中间表。现在，我希望保持结构不变，并使用原始sql从产品中获取系列ID。好的，我将尝试将您的问题复制到我的实例中，然后尝试为此构建原始查询我添加了一个原始sql语句，该语句可以正常工作-现在，我无法将其转换为精简活动记录实现。这很好，但我必须进行更改（第二次编辑），因为当使用刷新方法时，函数停止，并在视图中查看项目的位置。确定。添加。谢谢，您使用的是

departmentModel.departmentSeries.series

是否正确？或者你不认为它应该是

departmentModel.series

就像在我的开发机器

departmentModel.series

中一样，如果它的

departmentModel.departmentSeries.series

工作，那么请了解

departmentSeries

的一些细节。很抱歉询问，但需要详细信息来解决问题：（是的，部门是在一个简单的树形结构中。不要担心询问我很高兴得到您的帮助，老实说，在回家的路上，我注意到我的编辑缺少您问到的功能：）好的，谢谢，我将添加这些内容并测试它，哈哈，你的问题是1英里长的办公室到家的距离……）

$sql = 'SELECT DISTINCT series_id FROM depcore_parts_products_series WHERE product_id IN (SELECT DISTINCT product_id FROM depcore_parts_products_departments WHERE department_id = :dep_id');

$data = ['dep_id' => 2];
$query = \DB::select($sql, $data);
$data = $query;

foreach ($data as $model) {
    $ids[] = $model->series_id;
}

$returnData = Series::whereIn('id',$ids)->get();
// dd($returnData);

return $returnData;

use \October\Rain\Database\Traits\SimpleTree;

public $belongsTo = [
    'parent'    => ['HardikSatasiya\StackDemo\Models\Departments', 'key' => 'parent_id'],
];

public $hasMany = [
    'children'    => ['HardikSatasiya\StackDemo\Models\Departments', 'key' => 'parent_id'],
];

public function series() {

    $sql = 'SELECT DISTINCT series_id FROM hardiksatasiya_stackdemo_product_series WHERE product_id IN (SELECT DISTINCT product_id FROM hardiksatasiya_stackdemo_department_product WHERE department_id = :dep_id)';

    $data = ['dep_id' =>  $this->id];
    $query = \DB::select($sql, $data);
    $data = $query;
    foreach ($data as $model) {
        $ids[] = $model->series_id;
    }

    $returnData = Series::whereIn('id',$ids)->get();
    // dd($returnData);

    return $returnData;
}

public function scopeDepartmentSeries( $query ) {
    $children = $query->getModel()->getChildren();
    //dd($children);
    if ( count( $children ) > 0 ) {
        $seriesArray = array (  );

        foreach ($children as $child) {
            $childrenIds[] = 'Filter[departments][]='.$child->id;

            foreach ($child->series (  ) as $series) {

                if (!in_array($series->id,$seriesArray)) $seriesArray[] = $series->id;

                // if (!array_key_exists($series->id,$seriesArray)) $seriesArray[$series->id] = $series->name;

            }
        } // endforeach children as child
        $childrenString = implode( '&', $childrenIds );
        return ["series" => Series::whereIn ( 'id',$seriesArray )->get (  ),
                "childrenString" => $childrenString];
    }
    return ["series" => $query->getModel()->series(  )];
}

function onInit() {
    $departmentModel = \HardikSatasiya\StackDemo\Models\Departments::find(1);
    //dd($departmentModel->getChildren());
    $this['departmentModel'] = $departmentModel;
}