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Filename : Locations.php
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<?php

/**
 * Controller Class For Location Management (State/City)
 *
 * @author Softpro India Pvt. Ltd.
 */
defined('BASEPATH') OR exit('No direct script access allowed');

class Locations extends CI_Controller {

    public function __construct() {
        parent::__construct();
        $this->load->helper('url');
        $this->load->library('session');
        $this->load->helper('form');
        $this->load->library('form_validation');
        $this->load->model("LocationManagement");
    }

    public function getActiveCitiesByState() {
        $state_id = $_POST['state_id'];
        $query = $this->LocationManagement->getActiveCitiesByState($state_id);
        $cityList = $query->result();
        $options = "<option value=''>-Select City-</option>";
        for ($i = 0; $i < (sizeof($cityList)); $i++) {
            $options .= "<option value=" . $cityList[$i]->id . ">" . $cityList[$i]->name . "</option>";
        }
        $responseData = array(
            'csrfName' => $this->security->get_csrf_token_name(),
            'csrfHash' => $this->security->get_csrf_hash(),
            'city_list' => $options
        );
        echo json_encode($responseData);
    }
    
    public function getActiveCitiesByStateForUpdate() {
        $state_id = $_POST['state_id'];
        $city_id = $_POST['city_id'];
        $query = $this->LocationManagement->getActiveCitiesByState($state_id);
        $cityList = $query->result();
        $options = "<option value=''>-Select City-</option>";
        for ($i = 0; $i < (sizeof($cityList)); $i++) {
            $selected = ($cityList[$i]->id == $city_id)?"selected":"";
            $options .= "<option value=" . $cityList[$i]->id . " ".$selected.">" . $cityList[$i]->name . "</option>";
        }
        $responseData = array(
            'csrfName' => $this->security->get_csrf_token_name(),
            'csrfHash' => $this->security->get_csrf_hash(),
            'city_list' => $options
        );
        echo json_encode($responseData);
    }

}