form not submitting data to model in codeigniter - php

Question

I am trying to let the user update recipe info. When i hit submit it goes back to the recipes page but the info was not changed. basically i have no idea why the database is not being updated, i get no errors to help me figure it out either.
any help would be greatly appreciated, thank you.
here is my controller:
public function update(){
$data = array(
'id' => $this->input->post('recipe_id'),
'title' => $this->input->post('recipe_name'),
'description' => $this->input->post('recipe_description'),
'stars' => $this->input->post('rating'),
'directions' => $this->input->post('recipe_directions'),
'link' => $this->input->post('recipe_link'),
'genre' => $this->input->post('recipe_genre'),
'posted' => date('Y-m-d')
);
$this->recipe_model->update_recipe($data);
$this->recipes();
}
here is my Model:
function update_recipe($data){
$id = $data['id'];
unset($data['id']);
$this->db->where('id', $id);
$this->db->update('recipes' ,$data);
return true;
}
Here is my view
<?php
$attributes = array('id' => 'update-recipe-form');
echo form_open('addRecipe/update', $attributes); ?>
<input type="text" name="recipe_id" class="hide" value="<?php echo $recipe_id; ?>" placeholder="<?php echo $recipe_id; ?>">
<fieldset class="name">
<legend>Name of recipe</legend>
<input type="text" name="recipe_name" class="recipe_name" placeholder="<?php echo $recipe_title; ?>" value="<?php echo $recipe_title; ?>" tabindex="1">
</fieldset>

Answer 1

You don't pass data directly to Models, you pass data to Controllers that use models to do something.
class addRecipe extends CI_Controller
{
function __construct()
{
parent::__construct();
$this->load->model( 'my_model' );
$this->load->helper( 'form' );
}
function index() // The default view
{
$data_to_pass = array(
/* All the variables to pass to the view.
* This is what the form "preloads" when loaded the first time
*/
'recipe_title' => 'somevalue',
'recipe_description' => 'somevalue',
// etc...
);
$this->load->view( 'view_name', $data_to_pass );
}
function update()
{
// Do something with the data, use model methods, print it, etc.
// $this->my_model->do_something();
$id = $this->input->post('recipe_id');
$data = array(
'title' => $this->input->post('recipe_name'), // Title or Name here?
'description' => $this->input->post('recipe_description'),
'stars' => $this->input->post('rating'),
'directions' => $this->input->post('recipe_directions'),
'link' => $this->input->post('recipe_link'),
'genre' => $this->input->post('recipe_genre'),
'posted' => date('Y-m-d')
);
$success = $this->recipe_model->update_recipe( $id, $data );
if ( $success )
$this->load->view( /* your success view */ );
else
{
// Something went wrong
echo 'MySQL error message: ' . $this->db->_error_message();
exit;
}
}
}
Your model:
class Recipe_model extends CI_Model
{
function __construct()
{
parent::__construct();
$this->load->database(); // If it's not auto-loaded
}
function update_recipe( $id, $data )
{
$this->db->where( 'id', $id );
$this->db->update( 'recipes', $data );
return ( $this->db->affected_rows() > 0 ); // False if no recipes were modified
}
}
And your form:
<?=form_open('addRecipe/update', array( 'id' => 'update-recipe-form' ) ); ?>
<?php
// Will produce <input type="hidden" name="hidden_variable" value="hidden_value" />
echo form_hidden('hidden_variable', 'hidden_value');
?>
<fieldset class="name">
<legend>Name of recipe</legend>
<input type="text" name="recipe_name" placeholder="<?=$recipe_title; ?>" value="<?=$recipe_title; ?>" tabindex="1">
</fieldset>
<!-- Add all other required fields... -->
<?php
// Will produce <input type="submit" name="submit_button_name" value="Update recipe" />
echo form_submit( 'submit_button_name', 'Update recipe' );
?>
<?=form_close(); ?>
You can get more info about the form helper here: http://www.codeigniter.com/user_guide/helpers/form_helper.html