如何在CodeIgniter中使用AJAX从数据库获取数据? [英] How to get data from database using AJAX in CodeIgniter?

问题描述

我想知道如何使用CodeIgniter中的AJAX从数据库中获取数据.您能否检查下面的代码以找出问题的原因?当我从视图中单击链接时，没有任何反应.

I wonder how to get data from database using AJAX in CodeIgniter. Could you please check the code below to find out the reason of problem? Nothing happens when I click on the link from my view.

这是我的观点:

<a href="#" class="faq_title"><?php echo $faq_title; ?></a>

这是我的控制人:

public function get_faq_data() {
    $this->load->model("model_faq");
    $title = $_POST['title'];
    $data["results"] = $this->model_faq->did_get_faq_data($title);
    echo json_encode($data["results"]);
}

这是我的模特:

public function did_get_faq_data($title) {
    $this->db->select('*');
    $this->db->from('faq');   
    $this->db->where('faq_title', $title); 

    $query = $this->db->get('faq');

    if ($query->num_rows() > 0) {
        return $query->result();
    } else {
        return false;
    }
}    

这是我的JavaScript文件:

Here is my JavaScript file:

$(".faq_title").click(function() {
    var title = $(this).text();

    $.ajax({
        url: 'faq/get_faq_data',
        data: ({ title: title }),
        dataType: 'json', 
        type: 'post',
        success: function(data) {
            response = jQuery.parseJSON(data);
            console.log(response);
        }             
    });
});

推荐答案

尝试一下:

$(function(){ // start of doc ready.
   $(".faq_title").click(function(e){
      e.preventDefault();  // stops the jump when an anchor clicked.
      var title = $(this).text(); // anchors do have text not values.

      $.ajax({
        url: 'faq/get_faq_data',
        data: {'title': title}, // change this to send js object
        type: "post",
        success: function(data){
           //document.write(data); just do not use document.write
           console.log(data);
        }
      });
   });
}); // end of doc ready

---

我所看到的问题是此var title = $(this).val();，因为您的选择器$(".faq_title")是锚，并且锚具有文本而不是值.所以我建议您使用.text()而不是.val().

---

The issue as i see is this var title = $(this).val(); as your selector $(".faq_title") is an anchor and anchors have text not values. So i suggested you to use .text() instead of .val().

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