<?php

namespace Module\Blog\Model;

use Illuminate\Database\Eloquent\Model;

use ModStart\Core\Dao\ModelUtil;

class BlogCategory extends Model

{

protected $table = 'blog_category';

public static function getTreeList()

{

$models = ModelUtil::all(BlogCategory::class, [], ['*'], ['sort' => 'asc']);

$nodes = [];

foreach ($models as $model) {

$nodes[] = [

'id' => $model['id'],

'pid' => $model['pid'],

'title' => $model['title'],

'sort' => $model['sort']

];

}

return \ModStart\Core\Util\TreeUtil::nodesToTree($nodes, 0, 'id', 'pid', 'sort');

}

public function children()

{

return $this->hasMany(BlogCategory::class, 'pid', 'id');

}

public function parent()

{

return $this->belongsTo(BlogCategory::class, 'pid', 'id');

}

/**

* 获取树形结构的父级ID字段名

* @return string

*/

public function getTreeParentIdField()

{

return 'pid';

}

/**

* 获取树形结构的排序字段名

* @return string

*/

public function getTreeSortField()

{

return 'sort';

}

/**

* 获取树形结构的标题字段名

* @return string

*/

public function getTreeTitleField()

{

return 'title';

}

}