如果在插入批处理CodeIgniter中输入不为空，如何发送值

Question

基本上，我有这个将输入的值发送到数据库：

    $tag = $this->input->post('tags[]');

    $data = array();

    foreach ($tag as $term){
        $data[] = array(
            'post_id'  => $post_id,
            'term_id'  => $term,
            'user_id'  => $this->input->post('user_id'),
            'status'  => 'attached',
            'type'     =>  'tag',
        );

    }

    $this->db->insert_batch('ci_relationship', $data);

但是我试图通过使管理员输入X用户作为值或他的会话user_id（如果他决定将其保留为空）来使user_id为“可选”。

我尝试这样做，但仍然无法正常工作：

    $tag = $this->input->post('tags[]');

    $data = array();

    foreach ($tag as $term){
        $data[] = array(
            'post_id'  => $post_id,
            'term_id'  => $term,
            //'user_id'  => $this->input->post('user_id'),
            'status'  => 'attached',
            'type'     =>  'tag',
        );

    }

    $user_id = $this->input->post('user_id');

    if(empty($user_id)){
        $data['user_id'] = $this->session->userdata('user_id');
    } else {
        $data['user_id'] = $user_id;
    }

    $this->db->insert_batch('ci_relationship', $data);

如您所见，我在foreach中注释了user_id，然后将其添加到下一个代码块中，该代码块应检查imput是否为空。

提前致谢！。

Answer 1

该if语句必须在foreach中。

$tag = $this->input->post('tags[]');
$user_id = $this->input->post('user_id');

$data = array();

foreach ($tag as $key => $term){
    $data[$key] = array(
        'post_id'  => $post_id,
        'term_id'  => $term,
        'status'  => 'attached',
        'type'     =>  'tag',
    );

    if(empty($user_id)){
        $data[$key]['user_id'] = $this->session->userdata('user_id');
    } else {
        $data[$key]['user_id'] = $user_id;
    }
}

$this->db->insert_batch('ci_relationship', $data);

Answer 2

我认为无需添加更多行就可以了

$data[] = array(
        'post_id'  => $post_id,
        'term_id'  => $term,
        'user_id'  => (!empty($this->input->post('user_id')) ? $this->input->post('user_id') : '',
        'status'  => 'attached',
        'type'     =>  'tag',
    );

Answer 3

$tag = $this->input->post('tags[]');

$data = array();

foreach ($tag as $key => $term){
if(empty($this->input->post('user_id')))
{
$data[$key] = array(
        'post_id'  => $post_id,
        'term_id'  => $term,
        'status'  => 'attached',
        'type'     =>  'tag',
    );

}
else
{
$data[$key] = array(
        'post_id'  => $post_id,
        'term_id'  => $term,
        'user_id'  => $this->input->post('user_id'),
        'status'  => 'attached',
        'type'     =>  'tag',
    );

}
}

$this->db->insert_batch('ci_relationship', $data);

希望对你有效。