passing to model through controller in codeigniter? - php

Question

I want to select an option of product categories from dropdown menu and show products that have that specific category.
Here is the form part from my view:
<?php $attributes = array('method'=>"POST", "class" => "myc", "id" => "myc", "name" => "dropdwn");
echo form_open_multipart('frontend/home/display', $attributes); ?>
<div class="form-group">
<div class="col-sm-9">
<select class="form-control" name="category" onchange="this.form.submit();" />
<option value="" <?php echo set_select('category', 'zero', TRUE); ?>>Categories...</option>
<option value="phone" >Phones</option>
<option value="laptops">Laptops</option>
<option value="accessories" >Accessories</option>
</select>
</div>
</div>
<?php echo form_close(); ?>
As you can see I get the option from dropdown through onchange="this.form.submit();
(if it's not a good idea please suggest other way to do, I just didn't want to use ajax, as I'm not so good at it yet, anyhow suggest what seems better).
Then in my controller I get the option and convert it to array, to use it in my model.
controller part:
public function display($sort_by='product_id', $sort_order='asc', $offset = 0)
{
$this->load->model('model_product');
$selected = implode(" ", $this->input->post());
//var_dump($selected);
$results = $this->model_product->fetch($selected, $limit, $offset, $sort_by, $sort_order);
$data['products'] = $results['rows'];
$data['num_results'] = $results['num_rows'];
//and then goes pagination part, I guess no meaning posting it, as it works fine.
}
My model:
function fetch($selected, $limit, $offset, $sort_by, $sort_order)
{
$sort_order = ($sort_order == 'desc') ? 'desc' : 'asc';
$sort_columns = array('product_id', 'name', 'description', 'category', 'country', 'price');
$sort_by = (in_array($sort_by, $sort_columns)) ? $sort_by : 'product_id';
//actual results query
$q = $this->db->select('product_id, name, description, category, country, price, img_name, thumb_name')
->from('products')
->where('category', $selected)
->limit($limit, $offset)
->order_by($sort_by, $sort_order);
$ret['rows'] = $q->get()->result();
var_dump($ret['rows']);
die;
//count query
$q = $this->db->select('COUNT(*) as count', FALSE)
->from('products');
$tmp = $q->get()->result();
$ret['num_rows'] = $tmp[0]->count;
return $ret;
}
Here I get no results, probobly because where clause returns no result.
However if I change the where clause such as ->where('category', 'phones') it shows only phones. So how can I pass selected value to the query correctly?

Answer 1

i wil help you.
View file
<div class="box-header">
<h3 class="box-title">Enter Category Details</h3>
</div>
<?php
echo validation_errors(); $attributes = array('id' => 'formCategory','name'=>'formCategory');
?>
<?php echo form_open_multipart(base_url().'moderator/B2BCategory/addcategory'); ?>
<div class="box-body">
<div class="row">
<div class="col-xs-6">
<div class="form-group">
<label for="txtcatname">Title of Category :</label>
<input type="text" name="txtcatname" class="form-control" id="txtcatname" placeholder="Category Name " required="required">
</div>
</div>
<div class="col-xs-6">
<div class="form-group">
<label for="categorysection">Section of the Category :</label>
<select class="form-control" name="categorysection" required>
<option value="" >----Select------</option>
<option value="1">Laptop</option>
<option value="2">Phone</option>
<option value="3">Accessories</option>
</select>
<input type="submit" name="selsub" class="btn btn-primary">
</div>
</div>
</div>
Controller
public function addcategory() {
$this->load->helper(array('form', 'url'));
$this->load->view('moderator/templates/header');
$this->load->view('moderator/templates/sidebar');
if ($this->input->post('selsub')) {
$data = array('ctg_name' => $this->input->post('categorysection'));
$this->b2bcategory_model->form_insert($data);
}
In Model
public function form_insert($data){
$this->db->insert('jil_category', $data);
}
To display output from table,just use
public function viewall()
{
$this->db -> select('*');
$this -> db -> from('jil_category');
$query = $this -> db -> get();
return $query->result();
}

Answer 2

From
$selected = implode(" ", $this->input->post());
To
$selected = $this->input->post('category');
By the way, echo & var_dump() would be very useful in debugging your controller and/or model.