get looping data from one data - php

Question

I am using codeigniter.
I have two function in the model.
In the first function, I get all specific rows from one table. This is where I want to get all product details.
function getProduct()
{
$shoes = 'SELECT pd.name,
pd.id,
pd.price
FROM product_detail pd
LEFT JOIN product_sub_category psc
ON pd.sub_category_id = psc.id
WHERE psc.name = "Shoes"';
$categoried = $this->db->query($shoes);
return $categoried->result();
}
While in the second function, I get all specific rows based on one row from the first function. This is where I want to get all images for each products.
function getImage()
{
$shoes = 'SELECT pim.file_name
FROM product_img pim
LEFT JOIN product_detail pd
ON pim.product_detail_id = pd.id
WHERE pim.product_detail_id = "'.$row->id.'"';
$categoried = $this->db->query($shoes);
return $categoried->result();
}
But it gives me some errors.
Can someone please help me? Thanks for the help.
[UPDATE]
This is my Controller
In the controller, I identify records to get the product, and recorded to get the image.
function index()
{
$this->load->model('site_model');
$data = array();
$query = $this->site_model->getProduct();
$data['records'] = $query;
foreach ($query as $row)
{
$id = $row->id; // get ID
$name = $row->name; // get ID
$product_image = $this->site_model->getImage($id); // invoke the second method feeding that ID
$data['recorded'] = $product_image;
}
$this->load->view('mothershop', $data);
}
This is my Model
function getProduct()
{
$shoes = 'SELECT pd.name,
pd.id,
pd.price
FROM product_detail pd
LEFT JOIN product_sub_category psc
ON pd.sub_category_id = psc.id
WHERE psc.name = "Shoes"';
$categoried = $this->db->query($shoes);
return $categoried->result();
}
function getImage($id)
{
$shoes = 'SELECT pim.file_name
FROM product_img pim
LEFT JOIN product_detail pd
ON pim.product_detail_id = pd.id
WHERE pim.product_detail_id = "'.$id.'"';
$categoried = $this->db->query($shoes);
return $categoried->result();
}
This is my View of mothershop.php
In this section, I call the records and recorded
foreach ($records as $row)
{
echo "<div>".$row->name."</br>";
foreach ($recorded as $rowed)
{
echo "<img src='".base_url()."upload/thumbs/".$rowed->file_name."'/>";
}
echo "</div>";
}
However, I don't know why, it only get the same image for each products.
But if i print the $product_image in the controller, it gives me different images for each products.
What is wrong here?
Thanks in advance for #Ghost

Answer 1

Since that $row->id is solely depending on the first fetching method, currently, its out of scope. In order to use that ID from the first method, just add an argument on the second method and use that to the second query. More like this:
function getImage($id)
Then you can use it on the second method.
Since you haven't shown any code on how you are using your methods. Consider this example:
First method usage (Controller):
$this->load->model('Super_model');
$products = $this->Super_model->getProduct();
foreach($products as &$row) {
$id = $row->id; // get ID
$product_image = $this->Super_model->getImage($id); // invoke the second method feeding that ID
if(!empty($product_image)) { // if it exists
$row->file_name = $product_image->file_name; // add another property which is file_name on that first fetched data
}
}
Model method:
function getImage($id)
{
$shoes = "SELECT pim.file_name
FROM product_img pim
LEFT JOIN product_detail pd
ON pim.product_detail_id = pd.id
WHERE pim.product_detail_id = '$id' ";
$categoried = $this->db->query($shoes);
return ($categoried->num_rows() > 0) ? $categoried->row() : null;
}
That's the basic idea of it, we don't know what goes on and how you glue everything else on the controller, adjust it to fit into your codebase.