CodeIgniter Framework

Update Data to Database with Active Record in CodeIgniter Framework


Create Database

Create new database named learn_codeigniter_with_real_apps. This database have 1 table: Product table.

--
-- Table structure for table `product`
--

CREATE TABLE `product` (
  `id` int(11) NOT NULL PRIMARY KEY AUTO_INCREMENT,
  `name` varchar(250) NOT NULL,
  `price` double NOT NULL,
  `quantity` int(11) NOT NULL,
  `description` text NOT NULL,
  `status` tinyint(1) NOT NULL,
  `photo` varchar(250) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

--
-- Dumping data for table `product`
--

INSERT INTO `product` (`name`, `price`, `quantity`, `description`, `status`, `photo) VALUES('name 1', 2, 5, 'Description 1', 0, 'thumb1.gif');
INSERT INTO `product` (`name`, `price`, `quantity`, `description`, `status`, `photo) VALUES('name 2', 7, 3, 'Description 2', 1, 'thumb2.gif');
INSERT INTO `product` (`name`, `price`, `quantity`, `description`, `status`, `photo) VALUES('name 3', 2, 7, 'Description 3', 1, 'thumb3.gif');
INSERT INTO `product` (`name`, `price`, `quantity`, `description`, `status`, `photo) VALUES('name 4', 3, 8, 'Description 4', 1, 'thumb1.gif');
INSERT INTO `product` (`name`, `price`, `quantity`, `description`, `status`, `photo) VALUES('name 5', 8, 2, 'Description 5', 1, 'thumb2.gif');
INSERT INTO `product` (`name`, `price`, `quantity`, `description`, `status`, `photo) VALUES('name 6', 9, 11, 'Description 6', 1, 'thumb3.gif');

Structure of Product Table

Data of Product Table




Create Assets Folder

Create new folder named assets in root project. In this folder, create new folders as below:

Images Folder

Create new folder named images in assets folder. Copy images need to use in project to images folder.

Set BASE URL

In CodeIgniter Project, Open config.php file in config folder. Set value for base_url config as below:

$config['base_url'] = 'http://localhost:9092/LearnCodeIgniterWithRealApps/';

AutoLoad Libraries

In CodeIgniter Project, Open autoload.php file in config folder. Add database library to libraries config as below:

$autoload['libraries'] = array('database', 'form_validation');

AutoLoad Helpers

In CodeIgniter Project, Open autoload.php file in config folder. Add url, form and file helpers to helper config as below:

$autoload['helper'] = array('url', 'form', 'file');

Connect to Database

In CodeIgniter Project, Open database.php file in config folder. Add values as below connect to database:

$db['default'] = array(
	'hostname' => 'localhost',
	'username' => 'root',
	'password' => '123456',
	'database' => 'learn_codeigniter_with_real_apps'
);




Create Product Model

Create new PHP file named product_model.php in models folder as below:

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

class Product_model extends CI_Model
{

    function findAll()
    {
        return $this->db->get('product')->result();
    }

    function find($id)
    {
        return $this->db->where('id', $id)
                        ->get('product')
                        ->row();
    }

    function update($product = array())
    {
        $this->db->where('id', $product['id']);
        $this->db->update('product', $product);
    }
}

AutoLoad Product Model

In CodeIgniter Project, Open autoload.php file in config folder and set value for model config as below:

$autoload['model'] = array('product_model' => 'productModel');

Create Controller

Create new PHP file named product.php in controllers folder as below:

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

class Product extends CI_Controller
{

    public function index()
    {
        $data['products'] = $this->productModel->findAll();
        $this->load->view('product/index', $data);
    }

    public function edit($id)
    {
        $data['product'] = $this->productModel->find($id);
        $this->load->view('product/edit', $data);
    }

    public function process_edit()
    {
        $this->form_validation->set_rules('name', 'Name', 'trim|required|min_length[1]|max_length[50]');
        $this->form_validation->set_rules('price', 'Price', 'trim|required|numeric|greater_than[0]');
        $this->form_validation->set_rules('quantity', 'Quantity', 'trim|required|integer|greater_than[0]');
        $this->form_validation->set_rules('description', 'Description', 'trim|required');
        $this->form_validation->set_rules('photo', 'Photo', 'callback_file_check');
        if ($this->form_validation->run() == FALSE) {
            $data['product'] = $this->productModel->find($_POST['id']);
            $this->load->view('product/edit', $data);
        } else {
            if (isset($_FILES['photo']['name']) && $_FILES['photo']['name'] != "") {
                $config['upload_path'] = './assets/images/';
                $config['allowed_types'] = 'gif|jpg|png';
                $config['max_size'] = '1024';
                $config['encrypt_name'] = TRUE;
                $config['remove_spaces'] = TRUE;
                $this->load->library('upload', $config);
                if ($this->upload->do_upload('photo')) {
                    $photoInfo = $this->upload->data();
                    $_POST['photo'] = $photoInfo['file_name'];
                    $_POST['status'] = isset($_POST['status']);
                    $this->productModel->update($_POST);
                    redirect('product');
                } else {
                    $data['error_msg'] = $this->upload->display_errors();
                    $data['product'] = $this->productModel->find($_POST['id']);
                    $this->load->view('product/edit', $data);
                }
            } else {
                $_POST['status'] = isset($_POST['status']);
                $this->productModel->update($_POST);
                redirect('product');
            }
        }
    }

    function file_check()
    {
        $allowed_mime_type_arr = array(
            'image/gif',
            'image/jpeg',
            'image/jpg',
            'image/png'
        );
        $mime = get_mime_by_extension($_FILES['photo']['name']);
        if (isset($_FILES['photo']['name']) && $_FILES['photo']['name'] != "") {
            if (in_array($mime, $allowed_mime_type_arr)) {
                return true;
            } else {
                $this->form_validation->set_message('file_check', 'Please select only pdf/gif/jpg/png file.');
                return false;
            }
        }
        return true;
    }
}




Set Default Controller

In CodeIgniter Project, Open routes.php file in config folder. Set value for default_controller as below:

$route['default_controller'] = 'product';

Create View

Create new folder named demo in views folder. In this folder, create new views as below:

Index View

Create new PHP file named index.php as below:

<?php defined('BASEPATH') or exit('No direct script access allowed'); ?>
<html>
	<head>
		<title>Product List</title>
	</head>
	<body>

		<h3>Product List</h3>
        <table border="1" cellpadding="2" cellspacing="2">
        	<tr>
        		<th>Id</th>
        		<th>Name</th>
        		<th>Photo</th>
        		<th>Status</th>
        		<th>Description</th>
        		<th>Price</th>
        		<th>Quantity</th>
        		<th>Sub Total</th>
        		<th>Action</th>
        	</tr>
        	<?php foreach ($products as $product) { ?>
        		<tr>
        			<td><?php echo $product->id; ?></td>
        			<td><?php echo $product->name; ?></td>
        			<td><img src="<?php echo base_url(); ?>assets/images/<?php echo $product->photo; ?>" width="50"></td>
        			<td><?php echo $product->status ? 'active' : 'inactive'; ?></td>
        			<td><?php echo $product->description; ?></td>
        			<td><?php echo $product->price; ?></td>
        			<td><?php echo $product->quantity; ?></td>
        			<td><?php echo $product->price * $product->quantity; ?></td>
        			<td align="center">
        				<a href="<?php echo site_url('product/edit/'.$product->id); ?>">Edit</a>
        			</td>
        		</tr>
        	<?php } ?>
        </table>

	</body>
</html>

Edit View

Create new PHP file named edit.php as below:

<?php defined('BASEPATH') or exit('No direct script access allowed'); ?>
<html>
	<head>
		<title>Edit Product</title>
		<style type="text/css">
		  .error {
		      color: red;
		  }
		</style>
	</head>
	<body>

		<h3>Edit Product</h3>
        <?php echo form_open_multipart('product/process_edit'); ?>
        <table cellpadding="2" cellspacing="2">
        	<tr>
        		<td>Name</td>
        		<td>
        			<input type="text" name="name" value="<?php echo set_value('name', $product->name); ?>">
        		</td>
        		<td>
        			<?php echo form_error('name', '<span class="error">', '</span>'); ?>
        		</td>
        	</tr>
        	<tr>
        		<td>Price</td>
        		<td>
        			<input type="text" name="price" value="<?php echo set_value('price', $product->price); ?>">
        		</td>
        		<td>
        			<?php echo form_error('price', '<span class="error">', '</span>'); ?>
        		</td>
        	</tr>
        	<tr>
        		<td>Quantity</td>
        		<td>
        			<input type="text" name="quantity" value="<?php echo set_value('quantity', $product->quantity); ?>">
        		</td>
        		<td>
        			<?php echo form_error('quantity', '<span class="error">', '</span>'); ?>
        		</td>
        	</tr>
        	<tr>
        		<td valign="top">Description</td>
        		<td>
        			<textarea rows="5" cols="20" name="description"><?php echo set_value('description', $product->description); ?></textarea>
        		</td>
        		<td valign="top">
        			<?php echo form_error('description', '<span class="error">', '</span>'); ?>
        		</td>
        	</tr>
        	<tr>
        		<td>Status</td>
        		<td>
        			<input type="checkbox" name="status" <?php echo $product->status == 1 ? 'checked="checked"' : ''; ?>>
        		</td>

        	</tr>
        	<tr>
        		<td>Photo</td>
        		<td>
        			<input type="file" name="photo" accept="image/*">
        			<br>
        			<img src="<?php echo base_url(); ?>assets/images/<?php echo $product->photo; ?>" width="50">
        		</td>
        		<td>
        			<?php echo form_error('photo', '<span class="error">', '</span>'); ?>
        			<span class="error"><?php echo isset($error_msg) ? $error_msg : ''; ?></span>
        		</td>
        	</tr>
        	<tr>
        		<td>&nbsp;</td>
        		<td>
        			<input type="submit" value="Save">
        			<input type="hidden" name="id" value="<?php echo $product->id; ?>">
        			<input type="hidden" name="photo" value="<?php echo $product->photo; ?>">
        		</td>
        	</tr>
        </table>
        <?php echo form_close(); ?>

	</body>
</html>

Structure of CodeIgniter Project




Run Application

Access index action in Demo controller with following url: http://localhost:9092/LearnCodeIgniterWithRealApps/product/index

Output

Click Edit link open product need edit

Output

Input new product information and click Save button submit form to process_edit action in Product controller with valid data

Output

References

I recommend you refer to the books below to learn more about the knowledge in this article:


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