crm/app/model/ShareLog.php

<?php

namespace app\model;

use think\Model;

class ShareLog extends Model
{
    /**
     * 多态关联
     */
    public function content()
    {
        return $this->morphTo(['type', 'data_id'], [
            'MaterialCase' => 'app\model\MaterialCase',
            'Video' => 'app\model\Video',
            'MaterialEvidence' => 'app\model\MaterialEvidence',
            'Activity' => 'app\model\Activity',
            'Construction' => 'app\model\Construction',
            'Article' => 'app\model\Article',
            'CompanyStrength' => 'app\model\CompanyStrength',
            'Building' => 'app\model\Building'
        ]);
    }
}