[eluser]penta997[/eluser]
Helo. I'm trying to make a items pagination. I have 3 function, first displaying category, 2nd displaying sucategory. 3rd displaying items is cold get_books_by_subcategory. 3rd function get a segment->url(3) argumnet, i want to make a pagination in the same function. but i cant do it.
This is functions code in controller:
Code: function get_category()
{
$query = $this->Kategorie_model->get_category();
$this->response['podkategorie'] = '';
$this->response['kategorie'] = '';
$podkategorie = '';
if($query->num_rows() > 0)
{
foreach($query->result() as $item)
{
$podkategorie = $this->get_sub_category($item->CAT_ID);
$this->response['kategorie'] .= $this->load->view('Ksiegarnia/left', array('kategorie' =>$item, 'podkategorie'=>$podkategorie), true);
}
}
$data = $this->response['kategorie'];
return $data;
}
function get_sub_category($id)
{
$this->response['wynik'] = '';
$query = $this->Kategorie_model->get_sub_category($id);
if($query->num_rows() > 0)
{
foreach($query->result() as $row)
{
$link = site_url('ksiegarnia/get_books_by_subcategory/'.$row->SUBC_ID);
$this->response['wynik'] .= '<div class="subcat_name"><a href = "'.$link.'">'.$row->SUBC_Name.'</a></div>';
}
}
else
{
$this->response['wynik'] = '<H1>BRAK DANYCH </H1>';
}
return $this->response['wynik'];
}
function get_books_by_subcategory()
{
$widok['center'] = '';
$widok['left'] = $this->get_category();
$widok['right'] = $this->load->view('Ksiegarnia/right', '', true);
$id = $this->uri->segment(3);
if(isset($id) and is_numeric($id))
{
$query = $this->Kategorie_model->get_books_by_subcategory($id, $this->uri->segment(4));
if($query->num_rows() > 0)
{
foreach($query->result() as $item)
{
$widok['center'] .= $this->load->view('Ksiegarnia/get_books', array('data' =>$item), true);
}
}
else
{
$widok['center'] = $this->load->view('Ksiegarnia/get_books', array('tytul' =>'<h1>brak danych</h1>'), true);;
}
$widok['center'] .= $this->pagination->create_links();
$this->load->view('Ksiegarnia/index', $widok);
}
}
And this is my model:
Code: function get_books_by_subcategory($id, $offset=0)
{
$config['base_url'] = 'http://lukaszbielecki.cba.pl/ksiegarnia/CI/index.php/ksiegarnia/get_books_by_subcategory/'.$id.'/'.$offset;
$config['per_page'] = 7;
$this->db->where('SUB_CATEGORY_SUBC_ID', $id);
$config['total_rows'] = $this->db->get('books')->num_rows();
$config['num_links'] = 20;
$this->pagination->initialize($config);
return $this->db->get('books',$config['per_page'],$offset);
//$wynik = $this->db->query("Select * from books where SUB_CATEGORY_SUBC_ID = '".$id."'");
//return $wynik;
}
The arguments in url is changing, but dispalyin only a items from first subcategory.
Help, please.
[eluser]ELRafael[/eluser]
Try, after the model call, echo this:
Code: $this->db->last_query();
Ex:
Code: //old
return $this->db->get('books',$config['per_page'],$offset);
//new
$return = $this->db->get('books',$config['per_page'],$offset);
echo $this->db->last_query();
return $return;
See the SQL statement and check if LIMIT exists inside.
[]'s
[eluser]penta997[/eluser]
the echo displaying: SELECT * FROM (`books`) LIMIT 7 all the time.
[eluser]ELRafael[/eluser]
[quote author="penta997" date="1295396330"]the echo displaying: SELECT * FROM (`books`) LIMIT 7 all the time.[/quote]
Your code:
Code: $this->db->where('SUB_CATEGORY_SUBC_ID', $id);
//and
return $this->db->get('books',$config['per_page'],$offset);
but when you debug the sql statemente
Code: SELECT * FROM (`books`) LIMIT 7
Where is your WHERE condition (WHERE SUBCATEGORY_SUBC_ID = $id) and $offset var?
Maybe $id and $offset vars are empty or false.
Try to debug them:
Code: var_dump($this->uri->segment(3));
var_dump($this->uri->segment(4));
These variables are empty, my guess. Are you really sure that your link it's something like that:
http://lukaszbielecki.cba.pl/ksiegarnia/...*/**OFFSET**
**ID** => $this->uri->segment(3)
**OFFSET** => $this->uri->segment(4)
[]'s
[eluser]penta997[/eluser]
I've changed the base_url to:
Code: $config['base_url'] = 'http://lukaszbielecki.cba.pl/ksiegarnia/CI/index.php/ksiegarnia/get_books_by_subcategory/'.$id;
it was my mistake, becouse in browser i have an address for ex:http://lukaszbielecki.cba.pl/ksiegarnia/CI/index.php/ksiegarnia/get_books_by_subcategory/2/0/7
now when i displayng vardump i have: string(1) "3" bool(false) without $offset var in base url.
[eluser]penta997[/eluser]
now i have weird situation. I've changed code:
Controller:
Code: function get_books_by_subcategory()
{
$widok['center'] = '';
$widok['left'] = $this->get_category();
$widok['right'] = $this->load->view('Ksiegarnia/right', '', true);
$id = $this->uri->segment(3);
$offset = $this->uri->segment(4);
if(isset($id) and is_numeric($id))
{
$query = $this->Kategorie_model->get_books_by_subcategory($id,$offset);
$config['base_url'] = 'http://lukaszbielecki.cba.pl/ksiegarnia/CI/index.php/ksiegarnia/get_books_by_subcategory/'.$id;
$config['per_page'] = 7;
$this->db->where('SUB_CATEGORY_SUBC_ID', $id);
$config['total_rows'] = $this->db->get('books')->num_rows();
$config['num_links'] = 20;
$this->pagination->initialize($config);
//$query = $this->db->get('books', $config['per_page'], $offset );
if($query->num_rows() > 0)
{
foreach($query->result() as $item)
{
$widok['center'] .= $this->load->view('Ksiegarnia/get_books', array('data' =>$item), true);
}
}
else
{
$widok['center'] = $this->load->view('Ksiegarnia/get_books', array('tytul' =>'<h1>brak danych</h1>'), true);
}
$widok['center'] .= $this->pagination->create_links();
$this->load->view('Ksiegarnia/index', $widok);
}
}
model:
Code: function get_books_by_subcategory($id, $offset=7)
{
$this->db->where('SUB_CATEGORY_SUBC_ID', $id);
$this->db->orderby("SUB_CATEGORY_SUBC_ID", "desc");
//return $this->db->get('books',$config['per_page'],$offset);
//$wynik = $this->db->query("Select * from books where SUB_CATEGORY_SUBC_ID = '".$id."'");
//return $wynik;
$return = $this->db->get('books',7,$offset);
echo var_dump($this->uri->segment(3));
echo var_dump($this->uri->segment(4));
return $return;
}
now pagination almost working for first 6 subcategorys(links form pagination not changen on using link or visited), when i click 7th subcategory the links from pgination starting from 2nd link and all the time 2nd link displaying as using link.
Maybe if I paste website link it will be easier?
[eluser]ELRafael[/eluser]
Hi. Sorry about the delay
Back to basics
Controller (main.php)
Code: function books( $category, $start = 0 )
{
//You can use $start or $this->uri->segment(3)
//I prefer to put as a param of method
//Tomorrow I can debug a little faster (IMO)
$this->load->model('book_model', 'Book');
//Go Pagination, go!
$this->load->library('pagination');
$config['base_url'] = base_url().'main/books/'.$category;
//Only if you'r using PHP 5
$config['total_rows'] = $this->Book->get_by_category($category)->num_rows();
$config['per_page'] = 7;
$config['num_links'] = 20; //UHULL
$this->pagination->initialize($config);
$data['links'] = $this->pagination->create_links();
$data['books'] = $this->Book->get_by_category($category, $start, $config['per_page']);
$this->load->view('books_view', $data);
}
Code: function get_by_category( $category, $start = FALSE, $end = FALSE )
{
$this->db->select('your_fields');
$this->db->where('category', $category);
if ( $start !== FALSE AND $end !== FALSE )
$this->db->limit($start, $end);
return $this->db->get('books');
}
Anyway, you can put the url to see if there is a problem. I doubt we can find the issue with url ^_^
About the links from pagination didn't work, try to config $config['uri_segment'] = 3;
[]'s
[eluser]penta997[/eluser]
I've added $config['uri_segment']=4 and pagigation working  . Thank you very much. But I still dont undrestand why this paranormal things have a place :/
[eluser]ELRafael[/eluser]
If you don't set uri_segment, the default will be always 3.
Your case must be 4.
Nothing from Mars :coolsmile:
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