Question

我想删除数据库中的图像以及文件夹

控制器

function delete_projects(){
    $this->load->model('m_insert_data');
    $this->m_insert_data->delete_projects();
    redirect('../c_home/projects', 'refresh');
}

模型

function delete_projects(){
    $this->db->where('p_id',$this->uri->segment(3));
    $this->db->delete('projects');
}

Answer 1

您的delete语法正确，因此您可能正在将其从数据库中删除。

看起来您需要做的就是将其从文件系统中删除。为此，您可以使用unlink。

然而，我可能会以不同的方式构建它：

function delete_projects(){
    $this->load->model('m_insert_data');
    // You will want this ID more than once.
    $id = $this->uri->segment(3);

    $this->m_insert_data->remove_file($id);
    $this->m_insert_data->delete_projects($id);
    redirect('../c_home/projects', 'refresh');
}

模型

function remove_file($id){
    $query = $this->db->get_where('projects', array('p_id' => $id))->result();
    if($query) {
       // assumes that there is a column "path" in the projects table
       // which represents the path to the file
       unlink($query->path);
    }
}

function delete_projects($id){
    // generally a good idea to have functions like this know as little 
    // about the outside world as possible. So pass $id as a param
    $this->db->where('p_id',$id);
    $this->db->delete('projects');
}

CodeIgniter如何不同于图像

1 个答案: