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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

/**
 * Base class for People classes.
 *
 * @link    github.com/jekkos/opensourcepos
 * @since   1.0
 * @author  N/A
 */

class Person extends CI_Model
{
    /**
     * Determines whether the given person exists in the people database table
     *
     * @param integer $person_id identifier of the person to verify the existence
     *
     * @return boolean TRUE if the person exists, FALSE if not
     */
    public function exists($person_id)
    {
        $this->db->from('people');
        $this->db->where('people.person_id', $person_id);

        return ($this->db->get()->num_rows() == 1);
    }

    /**
     * Gets all people from the database table
     *
     * @param integer $limit limits the query return rows
     *
     * @param integer $offset offset the query
     *
     * @return array array of people table rows
     */
    public function get_all($limit = 10000, $offset = 0)
    {
        $this->db->from('people');
        $this->db->order_by('last_name', 'asc');
        $this->db->limit($limit);
        $this->db->offset($offset);

        return $this->db->get();
    }

    /**
     * Gets total of rows of people database table
     *
     * @return integer row counter
     */
    public function get_total_rows()
    {
        $this->db->from('people');
        $this->db->where('deleted', 0);

        return $this->db->count_all_results();
    }

    /**
     * Gets information about a person as an array
     *
     * @param integer $person_id identifier of the person
     *
     * @return array containing all the fields of the table row
     */
    public function get_info($person_id)
    {
        $query = $this->db->get_where('people', array('person_id' => $person_id), 1);

        if($query->num_rows() == 1)
        {
            return $query->row();
        }
        else
        {
            //create object with empty properties.
            $person_obj = new stdClass;

            foreach($this->db->list_fields('people') as $field)
            {
                $person_obj->$field = '';
            }

            return $person_obj;
        }
    }

    /**
     * Gets information about people as an array of rows
     *
     * @param array $person_ids array of people identifiers
     *
     * @return array containing all the fields of the table row
     */
    public function get_multiple_info($person_ids)
    {
        $this->db->from('people');
        $this->db->where_in('person_id', $person_ids);
        $this->db->order_by('last_name', 'asc');

        return $this->db->get();
    }

    /**
     * Inserts or updates a person
     *
     * @param array $person_data array containing person information
     *
     * @param var $person_id identifier of the person to update the information
     *
     * @return boolean TRUE if the save was successful, FALSE if not
     */
    public function save(&$person_data, $person_id = FALSE)
    {
        if(!$person_id || !$this->exists($person_id))
        {
            if($this->db->insert('people', $person_data))
            {
                $person_data['person_id'] = $this->db->insert_id();

                return TRUE;
            }

            return FALSE;
        }

        $this->db->where('person_id', $person_id);

        return $this->db->update('people', $person_data);
    }

    /**
     * Get search suggestions to find person
     *
     * @param string $search string containing the term to search in the people table
     *
     * @param integer $limit limit the search
     *
     * @return array array with the suggestion strings
     */
    public function get_search_suggestions($search, $limit = 25)
    {
        $suggestions = array();

//      $this->db->select('person_id');
//      $this->db->from('people');
//      $this->db->where('deleted', 0);
//      $this->db->where('person_id', $search);
//      $this->db->group_start();
//          $this->db->like('first_name', $search);
//          $this->db->or_like('last_name', $search);
//          $this->db->or_like('CONCAT(first_name, " ", last_name)', $search);
//          $this->db->or_like('email', $search);
//          $this->db->or_like('phone_number', $search);
//          $this->db->group_end();
//      $this->db->order_by('last_name', 'asc');

        foreach($this->db->get()->result() as $row)
        {
            $suggestions[] = array('label' => $row->person_id);
        }

        //only return $limit suggestions
        if(count($suggestions > $limit))
        {
            $suggestions = array_slice($suggestions, 0, $limit);
        }

        return $suggestions;
    }

    /**
     * Deletes one Person (dummy base function)
     *
     * @param integer $person_id person identificator
     *
     * @return boolean always TRUE
     */
    public function delete($person_id)
    {
        return TRUE;
    }

    /**
     * Deletes a list of people (dummy base function)
     *
     * @param array $person_ids list of person identificators
     *
     * @return boolean always TRUE
     */
    public function delete_list($person_ids)
    {
        return TRUE;
    }
}
?>