显示来自多个下拉选择的搜索结果

Question

我想显示来自多个下拉选择的搜索结果。我有 4 个下拉菜单。我有一个提交按钮，但是当我单击该提交按钮时，我仍然对如何显示搜索结果感到困惑。我想根据下面 mymodel.php 中的查询显示“courseplace”表中的“institution”和“address”列，并在不匹配时显示“No Results” .我想在http://www.bhinneka.com/category/notebook___laptop_gaming.aspx 上显示搜索结果（机构图片、机构名称和地址）。

我需要新页面来显示搜索结果吗？

我尝试了很多方法，但仍然失败:(

非常感谢您的回答！

以下是我的代码（使用 Codeigniter）：

Controller.php

class Controller extends CI_Controller 
{
    public function index()
    {
    $this->load->view('home');
    }
}

mymodel.php

class Mymodel extends CI_Model 
{
public function getinstitution() 
    {
    include('application/views/home.php');
    $institution = $_POST['DropdownInstitution'];
    $course = $_POST['DropdownCourse'];
    $location = $_POST['DropdownLocation'];
    $price = $_POST['DropdownPrice'];

    $this->db->select('*');
    $this->db->from('courseplace');
    $this->db->where('1 = 1');
    if ($institution != '') {
        $this->db->where('institution', $institution);
    }
    if ($course != '') {
        $this->db->where('course', $course);
    }
    if ($location != '') {
        $this->db->where('location', $location);
    }
    if ($price != '') {
        $this->db->where('price', $price);
    }
    $data = $this->db->get()->result_array();
    return $data;
    }
}

home.php

<div class="MenuSearching" id="Searching">
<form action="" method="post">
<div class="Menu1" id="Menu1">
    <p> Lembaga</p>
        <div style="margin-top:-20px;margin-left:-2px;">
            <select name="DropdownInstitution" autofocus required id="DropdownInstitution">
                <option value="no" selected="selected">---Choose one---</option>
                <option value="FlashCom">FlashCom</option>
                <option value="InterNusa">InterNusa</option>
                <option value="HexaCompare">HexaCompare</option>
            </select> 
        </div>
</div>
<div class="Menu2" id="Menu2">
    <p> Paket Kursus</p>
        <div style="margin-top:-20px;margin-left:-2px;">
            <select name="DropdownCourse" autofocus required id="DropdownCourse">
                <option value="no" selected="selected">---Choose one---</option>
                <option value="web">Kursus Web Design</option>
                <option value="flash">Kursus Flash Animation</option>
                <option value="marketing">Kursus Internet Marketing</option>
            </select> 
        </div>
</div>
<div class="Menu3" id="Menu3">
    <p> Lokasi</p>
        <div style="margin-top:-20px;margin-left:-3px;">
            <select name="DropdownLocation" autofocus required id="DropdownLocation">
                <option value="no" selected="selected">---Choose one---</option>
                <option value="timur">Surabaya Timur</option>
                <option value="barat">Surabaya Barat</option>
                <option value="utara">Surabaya Utara</option>
                <option value="selatan">Surabaya Selatan</option>
            </select> 
        </div>
</div>
<div class="Menu4" id="Menu4">
    <p> Harga</p>
        <div style="margin-top:-20px;margin-left:-2px;">
            <select name="DropdownPrice" autofocus required id="DropdownPrice">
                <option value="no" selected="selected">---Choose one---</option>
                <option value="harga1"> kurang dari Rp.750.000</option>
                <option value="harga2">Rp.750.000 - Rp.1.500.000</option>
                <option value="harga3">Rp.1.500.000 - Rp.2.500.000</option>
                <option value="harga4">lebih dari Rp.2.500.000</option>
            </select> 
        </div>
</div>
<div>
<input name="submitbutton" type="submit" id="submitbutton" formmethod="POST" value="Submit">
</div>
</form>

Answer 1

您可以使用 jQuery + Ajax 来解决这个不刷新问题。 在您的 home.php 文件中，向您的控制器发送请求，模型将数据返回给控制器后，数据将附加到您的网页上。

Answer 2

我建议您浏览模型、视图和控制器的 codeigniter 演示。 请检查以下代码

Controller.php

//make a call to getinstitution function
//load our Mymodel class defined in mymodel.php
//call your view home     



    class Controller extends CI_Controller 
    {
        public function __construct() {
            parent::__construct();
            $this->load->model('Mymodel');
        }

        public function index()
        {
            $params = array(
            'DropdownInstitution' => $this->input->post('DropdownInstitution'),
            'DropdownCourse' => $this->input->post('DropdownCourse'),
            'DropdownLocation' => $this->input->post('DropdownLocation'),
            'DropdownPrice' => $this->input->post('DropdownPrice'),            
            );

        $data['result'] = $this->mymodel->getinstitution($params);     
        $this->load->view('home',$data);
        }

    }

mymodel.php //不需要包含('application/views/home.php');//

    class Mymodel extends CI_Model 
    {
    public function getinstitution($params) 
        {

        $institution = $params['DropdownInstitution'];
        $course = $params['DropdownCourse'];
        $location = $params['DropdownLocation'];
        $price = $params['DropdownPrice'];

        $this->db->select('*');
        $this->db->from('courseplace');
        $this->db->where('1 = 1');
        if ($institution != '') {
            $this->db->where('institution', $institution);
        }
        if ($course != '') {
            $this->db->where('course', $course);
        }
        if ($location != '') {
            $this->db->where('location', $location);
        }
        if ($price != '') {
            $this->db->where('price', $price);
        }
        $data = $this->db->get()->result_array();
        return $data;
        }
    }

home.php
请添加以下代码以查看 home.php

    <div>
    <?php if(!empty($result)){
        foreach($result as $value){ ?>
        <?php echo $value ?>
    <?php    }   
    }else{ 
        echo 'No results';
        } ?>        
    </div><!--Result div-->