civicrm_handler_field_primary_phone.inc.php

<?php
/**
 *
 */

class tsccivicrm_handler_field_primary_phone extends views_handler_field {

  function option_definition() {
    $options = parent::option_definition();

    $options['phone_type'] = array('default' => '1');

    return $options;
  }

  /**
   * Provide link to the page being visited.
   */
  function options_form(&$form, &$form_state) {
    parent::options_form($form, $form_state);

    civicrm_initialize();
    require_once 'api/v2/Constant.php';

    // List phone types.
    $form['phone_type'] = array(
      '#title' => t('Phone type'),
      '#type' => 'select',
      '#options' => civicrm_constant_get('phoneType'),
      '#default_value' => $this->options['phone_type'],
    );
  }

  function query() {
    $this->ensure_my_table();

    $join = new views_join();
    $join->construct('civicrm_phone', $this->table_alias, 'id', 'contact_id');

    $join->extra = array();
    $join->extra[] = array('field' => 'phone_type_id', 'operator' => '=', 'value' => $this->options['phone_type']);

    $this->phone_table = $this->query->add_table('contact_phone', $this->relationship, $join);

    // Add the field.
    $this->field_alias = $this->query->add_field($this->phone_table, 'phone');

    $this->add_additional_fields();
  }
}