how to create pagination for url with parameters in codeigniter? - php

Question

we have an application which has page's result on the bases of certain parameters like domain.com/index.php/welcome/student/male here welcome is controller student is method name male is parameter, now we want pagination for this, but the problem is a person can also use sub category like this domain.com/index.php/welcome/student/male/steven where steven is another parameter, how to create pagination for this type of urls. Thank you in advance :)

Answer 1

Some problems when having optional parameters along with pagination:
The placement of pagination offset changes in the URL based on the
number of provided parameters.
If optional parameters are not set,
the pagination offset will act as a parameter.
Method 1:
Use query strings for pagination:
function student($gender, $category = NULL) {
$this->load->library('pagination');
$config['page_query_string'] = TRUE;
$config['query_string_segment'] = 'offset';
$config['base_url'] = base_url().'test/student/'.$gender;
// add the category if it's set
if (!is_null($category))
$config['base_url'] = $config['base_url'].'/'.$category;
// make segment based URL ready to add query strings
// pagination library does not care if a ? is available
$config['base_url'] = $config['base_url'].'/?';
$config['total_rows'] = 200;
$config['per_page'] = 20;
$this->pagination->initialize($config);
// requested page:
$offset = $this->input->get('offset');
//...
}
Method 2:
Assuming the category would never be a number and if the last segment is a numeric value then it's the pagination offset not a function's parameter:
function student($gender, $category = NULL) {
// if the 4th segment is a number assume it as pagination rather than a category
if (is_numeric($this->uri->segment(4)))
$category = NULL;
$this->load->library('pagination');
$config['base_url'] = base_url().'test/student/'.$gender;
$config['uri_segment'] = 4;
// add the category if it's set
if (!is_null($category)) {
$config['uri_segment'] = $config['uri_segment'] + 1;
$config['base_url'] = $config['base_url'].'/'.$category;
}
$config['total_rows'] = 200;
$config['per_page'] = 20;
$this->pagination->initialize($config);
// requested page:
$offset = ($this->uri->segment($config['uri_segment'])) ? $this->uri->segment($config['uri_segment']) : 1;
//...
}
I prefer the first method because it does not interfere with function parameters and it would be easier to implement the pagination support at an abstract level.

Answer 2

I worked around with codeigniter but i think that maybe you have to use config/routes.php. For example with:
$route['^(bar1|bar2)/routes/(:any)/(:any)'] = "routes/get_bar/$2/$3";
you could write a function in controller (in this case routes) like this:
public function get_bar($bar1 = null, $bar2 = null)
I hope this help you
Regards!