Question

我试图做的事情似乎很容易，但对于我的生活，我无法弄清楚我做错了什么。我想要实现的是调用一个函数，该函数在我的模型中的另一个函数中包含一个带有return语句的循环。由于某些原因，循环函数只返回db表中的第一行，即使有超过1的行。

这是循环函数：

public function download_contents($id) {
    $the_contents = $this->db->get_where('contents', array('request_id' => $id));
    $count = 1;
    foreach ($the_contents->result() as $y) {
        $file_name = $y->file_name;
        $download_path = base_url('assets/client/contents/'.$file_name);
        return '<p>' .$count++. '. &nbsp;' .$file_name.  '&nbsp;
        <a class="btn btn-primary btn-xs" href="' .$download_path. '" title="Download Content">Download</a></p>';
    }
}

现在我想在下面的函数中回显上述函数的结果：

public function modal_content_download($id) {
    $y = $this->db->get_where('website_requests', array('id' => $id))->row();
    $the_contents = $this->db->get_where('contents', array('request_id' => $id));
    if ( $the_contents->num_rows() > 0 ) {
        return '<button class="btn btn-primary btn-sm modal-toggle-btn" data-toggle="modal" data-target="#contents' .$id. '" title="Download Contents"> <i class="fa fa-download"></i></button>
        <div class="modal fade" id="contents' .$id. '" role="dialog">
            <div class="modal-dialog">
                <div class="modal-content modal-width">
                    <div class="modal-header">
                        <div class="pull-right">
                            <button class="btn btn-danger btn-xs" data-dismiss="modal" title="Close dialog"> Close </button>
                        </div>
                        <h5 class="modal-title"> <i class="fa fa-download"></i> Download Contents: ' .$y->project_name. '</h5>
                    </div><!--/.modal-header-->
                    <div class="modal-body">'
                        .$this->download_contents($id). //calling the first function
                    '</div>
                </div>
            </div>
        </div>';
    } else {
        return '<b style="color: red">No content uploaded yet.</b>';
    }
}

第二个函数被传递给控制器并加载到视图中（带有一些其他信息）。现在我知道代码点火器的查询逻辑，而result（）应该返回多于1行。我错过了什么？

Answer 1

试试这个

 public function download_contents($id) {
            $the_contents = $this->db->get_where('contents', array('request_id' => $id));
            $count = 1;
            $loop_result="";
            foreach ($the_contents->result() as $y) {
                $file_name = $y->file_name;
                $download_path = base_url('assets/client/contents/'.$file_name);
                $loop_result .= '<p>' .$count++. '. &nbsp;' .$file_name.  '&nbsp;
                <a class="btn btn-primary btn-xs" href="' .$download_path. '" title="Download Content">Download</a></p>';
            }
      return $loop_result; 
 }

Code Igniter foreach循环函数只返回一行

1 个答案: