在同一页面CodeIgniter中获取和更新数据

Question

我遇到了一个问题，我需要在显示的同一页面中更新数据库中的某些信息。

在这种情况下，我从索引页面中的网站获取一些“全局设置”，其中包含一个表单。这是一张图片，只是为了让我更清楚地理解我的意思。

正如你所看到我创建了按钮，我可以从数据库中看到值，问题是我无法弄清楚如何从那里更新它。有人可以提出一个想法吗？

这是我的控制器：

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Settings extends Admin_Controller {

    public function index()
    {

        $this->form_validation->set_rules('website_favicon', 'Favicon', 'trim|required|min_length[4]');
        $this->form_validation->set_rules('website_logo', 'Logon', 'trim|required|min_length[4]');
        $this->form_validation->set_rules('website_name', 'Website Name', 'trim|required|min_length[4]');
        $this->form_validation->set_rules('website_credits', 'Credits', 'trim|required|min_length[4]');
        $this->form_validation->set_rules('website_credits_link', 'Credits Link', 'trim|required|min_length[4]');
        $this->form_validation->set_rules('website_copyright', 'Copyright', 'trim|required|min_length[4]');

        if($this->form_validation->run() == FALSE){

            // Get Current Subject
            $data['item'] = $this->Settings_model->get_website_data();
            //Load View Into Template
            $this->template->load('admin', 'default', 'settings/index', $data);

        } else {

            // Create website settings
            $data = array(
                'website_favicon'   => $this->input->post('website_favicon'),
                'website_logo'      => $this->input->post('website_logo'),
                'website_name'      => $this->input->post('webiste_name'),
                'website_credits'   => $this->input->post('website_credits'),
                'website_credits_link'  => $this->input->post('website_credits_link'),
                'website_copyright' => $this->input->post('website_copyright'),
            );

            // Update User
            $this->Settings_model->update($id, $data);

            // Activity Array
            $data = array(
                'resource_id' => $this->db->insert_id(),
                'type'        => 'website settings',
                'action'      => 'updated',
                'user_id'     => $this->session->userdata('user_id'),
                'message'     => 'User (' . $data["username"] . ') updated the website settings'
            );

            // Add Activity  
            $this->Activity_model->add($data);

            //Create Message
            $this->session->set_flashdata('success', 'Website setting has been updated');

            //Redirect to Users
            redirect('admin/settings');
        }

    }

}

这是我的模特：

<?php

class Settings_model extends CI_MODEL
{

    function __construct()
    {
        parent::__construct();
        $this->table = 'website_settings';
    }


    public function update($id, $data)
    {
        $this->db->where('id', $id);
        $this->db->update($this->table, $data);
    }


    public function get_website_data()
    {
        $this->db->select('*');
        $this->db->from($this->table);
        $this->db->where('id', 1);
        $this->db->limit(1);

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

        if ($query->num_rows() == 1) {
            return $query->row();
        } else {
            return false;
        }

    }

}

这是我的视图（index.php），格式为：

<h2 class="page-header">Website Settings</h2>
<?php if($this->session->flashdata('success')) : ?>
<div class="alert alert-success alert-dismissible">
<button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
<h4><i class="icon fa fa-check"></i> Alert!</h4>
<?php echo $this->session->flashdata('success') ?></div>
<?php endif; ?>

<?php if($this->session->flashdata('error')) : ?>
<div class="alert alert-danger alert-dismissible">
<button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
<h4><i class="icon fa fa-ban"></i> Alert!</h4>
<?php echo $this->session->flashdata('error') ?></div>
<?php endif; ?>

<?php echo validation_errors('<p class="alert alert-danger">'); ?>
<?php echo form_open('admin/settings/index/'.$item->id); ?>
    <!-- Website Favicon -->
    <div class="form-group">
        <?php echo form_label('Website Favicon', 'title'); ?>
        <?php
            $data = array(
                'name' => 'website_favicon',
                'id'    => 'website_favicon',
                'maxlength' => '100',
                'class'     => 'form-control',
                'value'     => $item->website_favicon
            );
        ?>
        <?php echo form_input($data); ?>
    </div>
    <!-- Website Logo -->
    <div class="form-group">
        <?php echo form_label('Website Logo', 'website_logo'); ?>
        <?php
            $data = array(
                'name' => 'website_logo',
                'id'    => 'website_logo',
                'maxlength' => '100',
                'class'     => 'form-control',
                'value'     => $item->website_logo
            );
        ?>
        <?php echo form_input($data); ?>
    </div>
    <!-- Website Name -->
    <div class="form-group">
        <?php echo form_label('Website Name', 'website_name'); ?>
        <?php
            $data = array(
                'name' => 'website_name',
                'id'    => 'website_name',
                'maxlength' => '100',
                'class'     => 'form-control',
                'value'     => $item->website_name
            );
        ?>
        <?php echo form_input($data); ?>
    </div>
    <!-- Website Credits -->
    <div class="form-group">
        <?php echo form_label('Website Credits to', 'website_credits'); ?>
        <?php
            $data = array(
                'name' => 'website_credits',
                'id'    => 'website_credits',
                'maxlength' => '100',
                'class'     => 'form-control',
                'value'     => $item->website_credits
            );
        ?>
        <?php echo form_input($data); ?>
    </div>
    <!-- Website Credits Link -->
    <div class="form-group">
        <?php echo form_label('Website Credits to Link', 'website_credits_link'); ?>
        <?php
            $data = array(
                'name' => 'website_credits_link',
                'id'    => 'website_credits_link',
                'maxlength' => '100',
                'class'     => 'form-control',
                'value'     => $item->website_credits_link
            );
        ?>
        <?php echo form_input($data); ?>
    </div>
    <!-- Website Copyright -->
    <div class="form-group">
        <?php echo form_label('Copyrights', 'website_copyright'); ?>
        <?php
            $data = array(
                'name' => 'website_copyright',
                'id'    => 'website_copyright',
                'maxlength' => '100',
                'class'     => 'form-control',
                'value'     => $item->website_copyright
            );
        ?>
        <?php echo form_input($data); ?>
    </div>
    <!-- Website First Ad -->
    <div class="form-group">
        <?php echo form_label('Ad One', 'website_first_ad'); ?>
        <?php
            $data = array(
                'name' => 'website_first_ad',
                'id'    => 'website_first_ad',
                'maxlength' => '100',
                'class'     => 'form-control',
                'value'     => $item->website_first_ad
            );
        ?>
        <?php echo form_textarea($data); ?>
    </div>
    <!-- Website Second Ad -->
    <div class="form-group">
        <?php echo form_label('Ad Two', 'website_second_ad'); ?>
        <?php
            $data = array(
                'name' => 'website_second_ad',
                'id'    => 'website_second_ad',
                'maxlength' => '100',
                'class'     => 'form-control',
                'value'     => $item->website_second_ad
            );
        ?>
        <?php echo form_textarea($data); ?>
    </div>
    <!-- Website Third Ad -->
    <div class="form-group">
        <?php echo form_label('Ad Three', 'website_third_ad'); ?>
        <?php
            $data = array(
                'name' => 'website_third_ad',
                'id'    => 'website_third_ad',
                'maxlength' => '100',
                'class'     => 'form-control',
                'value'     => $item->website_third_ad
            );
        ?>
        <?php echo form_textarea($data); ?>
    </div>

    <?php echo form_submit('mysubmit', 'Update Website', array('class' => 'btn btn-primary')); ?>
<?php echo form_close(); ?>

感谢您的帮助。

Answer 1

单击该按钮，您可以绑定ajax调用以将数据提交到控制器的更新操作，您可以处理响应以在同一页面上显示相关消息。

示例ajax调用

$.ajax({
    url:'settings/update',//controller action
    type:'POST',
    dataType:'JSON',
    data:{'data':data,'id':id},//form data you need to upate with the id
    success:function(response) {
       //show success message here
    },
    error:function(response) {
       //show error message here
    }   
});

希望这有帮助。

Answer 2

检查数据是否通过控制器发布。然后使用set_value到输入字段以保留提交后的值

<强> CONTROLLER

var christmasTicket = db.ChristmasTicketsDb.FirstOrDefault(x => x.BarcodeNum == BarcodeNum);

if (christmasTicket != null) 
{
    // found ! 
    // here you can take the id from christmasTicket

}

查看

.p12