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[英]Codeigniter Getting data from two different models and show in one view
[英]Retrieving data from two different models in codeigniter and showing it in one view
我是CI的新手,我想知道如何從不同的模型中檢索數據但是相同的視圖。
我有2個模型,一個用於評估費用的細目,另一個是費用評估細目的總價。
function result_getAssessment($studentid)
{
$sql=
"
select g.studentid, sb.subjectcode, s.price
FROM grades g
INNER JOIN subjectblocking sb ON g.blockcode=sb.blockcode
INNER JOIN subjects s ON sb.subjectcode=s.subjectcode
WHERE studentid='$studentid'
";
$result = $this->db->query($sql);
$result = $result->result();
return $result;
}
function result_totalAssessment($studentid)
{
$sql=
"
SELECT sum(s.numofunit) total_units, sum(s.price) total_tuition FROM subjects s
INNER JOIN subjectblocking sb ON s.subjectcode=sb.subjectcode
INNER JOIN grades g ON sb.blockcode=g.blockcode
WHERE g.studentid='$studentid'
";
$result = $this->db->query($sql);
$result = $result->result();
return $result;
}
我的控制器:
function getAssessment()
{
$this->load->view('header');
$this->load->view('navbar');
$this->load->view('sidebar');
$this->load->view('footer');
$studentid = $this->session->userdata('studentid');
$data['studentid'] = $studentid;
$data['query'] = $this->m_login->result_getAssessment($studentid);
$this->load->view('v_assessment',$data);
$this->gettotalAssessment();
}
function gettotalAssessment()
{
$studentid = $this->session->userdata('studentid');
$data['studentid'] = $studentid;
$data['query'] = $this->m_login->result_totalAssessment($studentid);
$this->load->view('v_assessment',$data);
}
我的觀點:
<?php foreach ($query as $row){ ?>
<tr>
<td> <?php echo $row->subjectcode;?> <br></td>
<td> <?php echo $row->price;?><br></td>
<td> <?php echo $row->total_tuition;?><br></td>
</tr>
<?php } ?>
請幫助我,如何從兩個模型中檢索數據並從一個視圖中顯示它。 提前致謝!
這在codeigniter文檔中似乎微不足道。 雖然我對codeigniter相對較新,但我的貢獻可能很方便。 這就是:確保加載兩個模型(比如在控制器類構造函數中)。 然后代碼中有這兩行導致問題
1. $data['query'] = $this->m_login->result_getAssessment($studentid); <<<found in getAssessment() method
和
2. $data['query'] = $this->m_login->result_totalAssessment($studentid); <<<found in gettotalAssessment() method
您必須為這些結果指定不同的數組鍵
因為你在某種程度上動態地構建數組。 請參閱: php manual另請注意,在指定現有索引時向數組添加alement時,該索引處的值將被新值覆蓋。 希望這會給你的解決方案搜索帶來更多的肉體。
其實你叫$this->gettotalAssessment();
在getAssessment()
加載視圖后,您需要在控制器中執行此操作
function getAssessment()
{
$this->load->view('header');
$this->load->view('navbar');
$this->load->view('sidebar');
$this->load->view('footer');
$studentid = $this->session->userdata('studentid');
$data['studentid'] = $studentid;
$data['query'] = $this->m_login->result_getAssessment($studentid);
$data['totalAssessment'] = $this->m_login->result_totalAssessment($studentid);
$this->load->view('v_assessment',$data);
}
在您的視圖中,您可以訪問總評估
$totalAssessment
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