I'm look for a way to display data in reverse order using the table library along with pagination in Codeigniter. From
public function pagination(){
$this->load->library("pagination");
$this->load->library("table");
$this->table->set_heading("ID", "Name", "Address");
$config["base_url"] = site_url('site/pagination');
$config["total_rows"] = $this->db->get("mail")->num_rows();
$config["per_page"] = 10;
$config["num_links"] = 10;
$config['page_query_string'] = TRUE;
$this->pagination->initialize($config);
$data["records"] = $this->db->get("mail", $config["per_page"], $this->input->get('per_page', TRUE));
$data['pagination'] = $this->pagination->create_links();
$this->load->view("site_header");
$this->load->view("site_nav");
$this->load->view("content_about", $data);
$this->load->view("site_footer");
}
The table is working just fine but i can't figure out a way to display the data in reverse order. I would like to make the table start with the latest entries (ID, Name, Address) from the database and not the first.
I suppose their i something wrong with how i query the database:
$data["records"] = $this->db->get("mail", $config["per_page"], $this->input->get('per_page', TRUE));
Change :
$data["records"] = $this->db->get("mail", $config["per_page"], $this->input->get('per_page', TRUE));
to :
$data["records"] = $this->db->select("ID, Name, Address")->from("mail")->order_by("ID DESC")->limit($config["per_page"], $offset)->result_array();
only add in your model
$this->db->order_by('id', 'asc');//or desc
Related
I have been able to develop a pagination for my page which contains about 25000 records. The page paginates in 100's but for now, when i click on the pagination link to move to the next page, it leads me to the first page again. But the URI on my browser shows the per page number like customers/100 . What could i be doing wrong below
Controller
$config['base_url'] = base_url() . 'customers/index/';
$config["total_rows"] = $customers
$config["per_page"] = 100;
$config['num_links'] = 10;
$config["uri_segment"] = 3;
$this->pagination->initialize($config);
$page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;
$data['items'] = $this->customer->get_customer_all($config["per_page"]);
Model
public function get_customer_all($limit = null) {
$this->db->select('*');
$this->db->from('courses');
if($limit!=''){
$this->db->limit($limit);
}
$query = $this->db->get();
return ($query) ? $query->result() : false;
}
Why do you not use $page variable?
For getting data partially you need both limit and offset.
limit for count of customers per page and offset for understanding what page you are on.
So try to change you request to model like this:
$data['items'] = $this->customer->get_customer_all($config["per_page"], $page);
And update model like this (with some changes):
public function get_customer_all($limit = 0, $offset = 0) {
return $this->db->select('*')->
from('courses')->
limit($limit)->
offset($offset)->
get()->
result_array();
}
Could you help me with my problem about pagination in Codeigniter? I have a view that lists books. I wrote some code and now I see the buttons but the content is not limited as I wished. Can't find what is wrong with the code.
That is the updated code:
Controller:
public function index($offset=0){
$config['base_url'] = 'http://localhost/myLibrary/books/index';
//$config['total_rows'] = 200;
$config['total_rows'] = $this->db->get('books')->num_rows();
$config['per_page'] = 1;
$config['uri_segment']= 3;
$config['attributes'] = array('class' => 'pagination-link');
$config['page_query_string'] = TRUE;
$this->pagination->initialize($config);
$book_list = $this->Books_model->list_books();
$genre_list= $this->Books_model->list_genres();
$author_list= $this->Books_model->list_authors();
$view_data = array(
"book_list" => $book_list,
"genre_list" => $genre_list,
"author_list" => $author_list
);
$this->db->get('books', $config['per_page'], $this->uri->segment(3));
$start = isset($_GET['start']) ? $_GET['start'] : 0;
$book_list = $this->Books_model->list_books($start, $config['per_page']);
$this->load->view("book_list",$view_data);
$this->load->library('pagination');
$this->load->library('table');
}
Model:
public function list_books($limit = FALSE, $offset = FALSE){
if($limit)
{
$this->db->limit($offset, $limit);
}
$list=$this->db->get("books")->result();
return $list;
}
View:
<?php echo $this->pagination->create_links(); ?>
I'd be so happy if you could help and thanks in advance
You can't use base_url() function as a base_url for pagination unless this index function belongs to your default site controller.
Instead change your line to this:
$config['base_url'] = site_url('controller/method/');
Also the reason your data isn't limited is because you're sending start parameter as false to model
It should be:
$data['records'] = $this->Books_model->list_books($this->uri->segment(3), $config['per_page'], $offset);
By looking at your code, the list of books being sent to the view file is stored in the $book_list variable, so in order to limit the number of books returned alter your line to this:
$start = isset($_GET['start']) ? $_GET['start'] : 0;
$book_list = $this->Books_model->list_books($start, $config['per_page']);
And add this you your pagination config array:
$config['page_query_string'] = TRUE;
And in your model function change this line:
$this->db->limit($limit, $offset);
To:
$this->db->limit($offset, $limit);
as stated in the CI documentation
$this->db->limit(10, 20); // Produces: LIMIT 20, 10 (in MySQL. Other databases have slightly different syntax)
Check here for more reference CI Limiting
Also as a side note, by looking at your code the $query and $data['records'] variables are assigned values but are never used or passed to the view file, so they don't do anything
This is how an index method in your controller should look like now:
Controller:
public function index($offset=0){
$config['base_url'] = site_url('books/index');
//$config['total_rows'] = 200;
$config['total_rows'] = $this->db->get('books')->num_rows();
$config['per_page'] = 1;
$config['uri_segment']= 3;
$config['attributes'] = array('class' => 'pagination-link');
$config['page_query_string'] = TRUE;
$this->pagination->initialize($config);
$start = isset($_GET['start']) ? $_GET['start'] : 0;
$book_list = $this->Books_model->list_books($start, $config['per_page']);
$genre_list= $this->Books_model->list_genres();
$author_list= $this->Books_model->list_authors();
$view_data = array(
"book_list" => $book_list,
"genre_list" => $genre_list,
"author_list" => $author_list
);
$this->load->view("book_list",$view_data);
$this->load->library('pagination');
$this->load->library('table');
}
Model:
public function list_books($limit = FALSE, $offset = FALSE){
if($limit !== FALSE)
{
$this->db->limit($offset, $limit);
}
$list=$this->db->get("books")->result();
return $list;
}
$config['base_url'] = 'http://example.com/controller/index/page/'
Try to add index as method name config['base_url]. so that whenever your pagination url created it contains method name.
this happens due to index method call automatically i.e. we don't need to mention method name but in pagination url we have to pass offset parameter we must have to use full url.
pagination is working but i dont know Why its showing only one data per page?? and i hv 20 data in my db and i can see only 6 data in 6pages :(
This is my controller
function view($page=0){
$config = array();
$config["base_url"] = base_url() . "index.php/view_expenses/view";
$config["total_rows"] = $this->emp_expenses_model->getTotalExpensesCount();
$config["per_page"] =1;
$this->pagination->initialize($config);
$this->data["results"] = $this->emp_expenses_model->getExpenses($config["per_page"], $page);
$this->data["links"] = $this->pagination->create_links();
$this->data['title'] = 'Payroll System';
$this->data['message'] = $this->session->flashdata('message');
$this->load->view('view_expenses', $this->data);
}
This is my model
function getTotalExpensesCount() {
return $this->db->count_all("emp_expenses");
}
function getExpenses($limit, $start) {
$this->db->limit($limit, $start);
$qry= $this->db->get("emp_expenses");
return $qry->result();
}
Any help thanks in advance :D
Try this:
function view(){
$config = array();
$config["base_url"] = base_url() . "index.php/view_expenses/view/".$this->uri->segment(3);
$config["total_rows"] = $this->emp_expenses_model->getTotalExpensesCount();
$config["per_page"] = 5;
$config['uri_segment'] = 3;
$this->pagination->initialize($config);
$this->data["results"] = $this->emp_expenses_model->getExpenses($config["per_page"], $this->uri->segment(3));
$this->data["links"] = $this->pagination->create_links();
$this->data['title'] = 'Payroll System';
$this->data['message'] = $this->session->flashdata('message');
$this->load->view('view_expenses', $this->data);
}
function getExpenses($limit, $start = 0) {
$qry= $this->db->get("emp_expenses", $limit, $start);
return $qry->result();
}
$config["per_page"] = 5; means that you want to show 5 data per page, $config['uri_segment'] = 3; says what segment will hold the offset which you will be using in your query. $config["total_rows"] defines the total no. of rows in your table. $config["base_url"] defines the url the pagination will hold.
The data you are showing in your view is no way related to the pagination. Check your query and the offset you are getting. E.g. place echo $this->db->last_qeury();die; in function getExpenses() just before return statement.
You need to pass the uri segment like
$config["uri_segment"] = $last_seg_no;
Here $last_seg_no will be the last segment where you can find the page number.And need to pass the per page param also like
$config["per_page"] = 1;//As per your case
"dont know Why its showing only one data per page??" because of $config["per_page"] =1;.
Add the following,
$config['uri_segment'] = 3; // change based on ur url
Change the value from $config["per_page"] =1; to $config["per_page"] =3; to display 3 data per page.
Try this
$config['uri_segment'] = 3;
$config["per_page"] = 3;
Modifiy modal function like this
function getTotalExpensesCount() {
$this->db->select("count(*) as CNT");
$qry = $this->db->get("emp_expenses");
$result2 = $qry->row()->CNT;
return $result2;
}
i have faced this same problem. Now it solved by changing this
$config['uri_segment']
I have a problem with pagination and codeigniter. I have a quick_searh view from witch I am submitting the information to a index controller function and there setting the pagination and calling the quick_search method to get the data I want. It just doesnt work . I've spent more then 5 hours rewriting those methods and even starting with quick_search and then passing to index function but nothing worked, please help.
public function index(){
// search parameters config
$lawyer_name = $this->input->post('lawyer_name');
$kanzlei = $this->input->post('kanzlei');
$area_of_expertise = $this->input->post('area_of_expertise');
$post_code = $this->input->post('post_code');
$city = $this->input->post('city');
$result = $this->quick_search(
$this->uri->segment(3),
$lawyer_name,
$kanzlei,
$area_of_expertise,
$post_code,
$city);
if(isset($result)){
// pagination config
$this->load->library('pagination');
$this->load->library('table');
$config['total_rows'] = count($result);
$config['base_url'] = 'http://localhost/anwalt/index.php/search/index';
$config['per_page'] = 5;
$config['num_links'] = 5;
$this->pagination->initialize($config);
$data['search_result_array'] = $result;
$data['main_content'] = 'pages/quick_search_results';
$this->load->view('templates/home_body_content', $data);
}
}
the quick_search function:
public function quick_search($offset, $lawyer_name, $kanzlei, $area_of_expertise, $post_code, $city){
// no input in the quick search
if( empty($lawyer_name) && empty($kanzlei) && empty($area_of_expertise)
&& empty($post_code) && empty($city))
{
$result = 'nothing';
} else {
$this->load->model('quick_search_model');
$result = $this->quick_search_model->get_search_results(
$offset,
$lawyer_name,
$kanzlei,
$area_of_expertise,
$post_code,
$city
);
}
return $result;
}
the sql is like this:
$sql = "SELECT users.user_id, users.canonical_name, first_name, last_name, city, phone_number, kanzlei
from users
inner join user_normal_aos
on users.user_id = user_normal_aos.user_id
inner join normal_areas_of_expertise
on user_normal_aos.normal_areas_of_expertise_id = normal_areas_of_expertise.normal_areas_of_expertise_id
where ".implode(" AND ", $where);
if(empty($offset)){
$offset = 0;
}
$sql = $sql." LIMIT ".$offset.", 4";
The data are displayed but I dont see the pagination in there .. and even when I want to change the url for segmenting it says I dont have any data.
The view is like:
<h1>Quick search results</h1>
<?php
if($search_result_array == "nothing"){
echo "<h3>You havent inputed anything</h3>";
} else {
echo $this->table->generate($search_result_array);
}
echo $this->pagination->create_links();
As per your search variables you can use this:
$lawyer_name = $this->input->post('lawyer_name');
$kanzlei = $this->input->post('kanzlei');
$area_of_expertise = $this->input->post('area_of_expertise');
$post_code = $this->input->post('post_code');
$city = $this->input->post('city');
/*pagination start*/
$this->load->library('pagination');
$config['base_url'] = base_url().'index.php/index/lawyer/'.$lawyer_name.'/kanzlei/'.$kanzlei.'/area_of_expertise/'.$area_of_expertise.'/post_code/'.$city.'/page/';
$config['total_rows'] = $this->model->count_all_results(); ###implement this function to count all the vodeos as per the search variables, just use the same function as "quick_search" but without the limit clause
$config['per_page'] = count($result);;
$config['uri_segment'] = 10;
$config['next_link'] = 'Next';
$config['prev_link'] = 'Prev';
$config['cur_tag_open'] = '<span class="active_page">';
$config['cur_tag_close'] = '</span>';
$this->pagination->initialize($config);
/*pagination end*/
You can not use $this->pagination->create_links(); method in view.
Use $data['pagination'] = $this->pagination->create_links(); in controller just before loading view
and echo $pagination in view
hope this will help you.
I have a controller with a method that looks something like this:
public function browsecategory($category_id)
{
//find any subcategories for this category
$this->load->model('category/category_model');
$this->load->model('category/product_category_model');
$records['categories'] = $this->category_model->find_all_by('parent_id', $category_id);
//add some product data too.
$records['products'] = $this->product_category_model->find_all_by('category_id', $category_id);
Template::set('records', $records);
Template::render();
}//end browsecategory
All the examples I've seen for the codeigniter pagination "stuff" is using one query.
I need to combine two data sets and serve on one view.
Any suggestions?
EDIT 1
I've tried to follow MDeSilva's suggestion below. And although the pagination object is correctly calculating the number of links to create, all items appear on all pages.
Here's the code in the model that gets the data:
public function get_categories_and_products($limit=12, $offset=0, $category_id=null)
{
print '<BR>the function got the following offeset:'.$offset;
$query = "(SELECT cat.category_id, cat.title, cat.image_thumb, cat.deleted, cat.display_weight ";
$query = $query."FROM bf_categories cat ";
$query = $query."WHERE cat.parent_id=".$category_id;
$query = $query." AND cat.category_id <>".$category_id;
$query = $query.") UNION (";
$query = $query."SELECT p.product_id, p.name, p.image_thumb, p.deleted , p.display_weight";
$query = $query." FROM bf_product p ";
$query = $query."Inner join bf_product_category cp ";
$query = $query."on p.product_id=cp.product_id ";
$query = $query."Where cp.category_id=".$category_id.")";
$this->db->limit($limit, $offset);
$catsandprods= $this->db->query($query);
return $catsandprods->result() ;
}
And here's the code in the controller:
public function browsecategory($category_id, $offset=0)
{
$this->load->library('pagination');
$total = $this->product_model->get_cats_prods_count($category_id);
$config['base_url'] = site_url('/product/browsecategory/'.$category_id);
$config['uri_segment'] = 4;
$config['total_rows'] = $total;
$config['per_page'] = 5;
$config['num_links'] = 10;
$this->pagination->initialize($config);
$offset = ($this->uri->segment($config['uri_segment'])) ? $this->uri->segment($config['uri_segment']) : 0;
print $offset;
//Call the model function here to get the result,
$records= $this->product_model->get_categories_and_products(5,$offset,$category_id);
//add to breadcrumb trail
$this->build_bread_crumb_trail($category_id);
$breadcrumbs = $this->breadcrumbs->expand_to_hyperlinks();
Template::set('currentcategory',$category_id);
Template::set('breadcrumbs', $breadcrumbs);
Template::set('records', $records);
Template::render();
}
I've debugged and I can see that the line of code "$this->db->limit($limit, $offset);" in the model is not working. It always returns the full record set...
Can you tell me what I'm missing?
Thanks.
This is the way to generate pagination links in CI, for your requirement have a query with a join,
public function index($offset = 0) {
$language_id = 1;
$artwork_id = null;
if ($_SERVER['REQUEST_METHOD'] == 'POST')
{
$artwork_id = $this->input->post('serach_artwork_id', TRUE) ? $this->input->post('serach_artwork_id', TRUE) : null;
$data['artwork_id'] = $artwork_id;
}
$this->load->library('pagination');
$limit = 10;
$total = $this->Artwork_model->get_artwork_count($language_id, $artwork_id);
$config['base_url'] = base_url().'artwork/index/';
$config['total_rows'] = $total;
$config['per_page'] = $limit;
$config['uri_segment'] = 3;
$config['first_link'] = '<< First';
$config['last_link'] = 'Last >>';
$config['next_link'] = 'Next ' . '>';
$config['prev_link'] = '<' . ' Previous';
$config['num_tag_open'] = '<span class="number">';
$config['num_tag_close'] = '</span>';
$config['cur_tag_open'] = '<span class="current"><a href="#">';
$config['cur_tag_close'] = '</a></span>';
$this->pagination->initialize($config);
//Call the model function here to get the result,
$data['artworks'] = $this->Artwork_model->get_artworks($language_id, $limit, $offset, $artwork_id);
$this->template->write('title', 'Artwork : Manage Artwork');
$this->template->write_view('content', 'artwork/index', $data);
$this->template->render();
}
Here is an example for query with multiple joins in the model
public function get_artworks($language_id = 1, $limit = 10, $offset = 0, $arwork_id = null)
{
$this->db->select('a.id, a.price, a.is_shop, at.title,at.status,at.date_added,ats.name as artist_name');
$this->db->from('artworks a');
$this->db->join('artwork_translations at', 'a.id = at.artwork_id');
$this->db->join('artists ats', 'a.artist_id = ats.id');
$this->db->where('at.language_id', $language_id);
if(!is_null($arwork_id) && !empty($arwork_id) && $arwork_id != 'all')
{
$this->db->where('a.id =', $arwork_id);
}
$this->db->order_by('a.id DESC');
$this->db->limit($limit, $offset);
$artworks = $this->db->get();
return $artworks->result();
}
In the View
<?= $this->pagination->create_links(); ?>
The pagination class doesn't care about the how the data source is constructed, just so you hand it the data result object it wants. So you would just pass limits & offsets into your data queries, or else pull all your data and slice it up afterwards.
However, I don't really understand how you are thinking to combine these different bits of data into a single result to display - are you trying to display all categories, then paginate the products? If so, you are set up incorrectly
Simply use PHP function array_merge
<?php $beginning = 'foo'; $end = array(1 => 'bar');
$result = array_merge((array)$beginning, (array)$end);
$this->load->view('view.php', $result);
?>
and extract according to keys for array used.
It is really simple & working