webform_node_value.module in Webform Node Value 7

File

webform_node_value.module

<?php

/**
 * Implements hook_form_alter().
 */
function webform_node_value_form_alter(&$form, &$form_state, $form_id) {
  if ($form_id == 'webform_configure_form') {
    webform_node_value_configuration_form($form);
  }

  // Webform is being presented to visitor.
  if (isset($form['#node']->webform) && in_array('webform_client_form_submit', $form['#submit'])) {

    // Store nid of page if webform is block on other node.
    $page_nid = webform_node_value_nid_from_page();
    $form_nid = $form['details']['nid']['#value'];
    if ($page_nid != $form_nid) {
      $settings = webform_node_value_configuration_get($form['details']['nid']['#value']);
      if (isset($settings->node_path_source) && $settings->node_path_source == 'page') {

        // Only way I could find to add this value to webform when it's rebuilt on submit.
        $form['#action'] .= '?webform_node_value_nid=' . $page_nid;
      }
    }

    // Important to add it to start of the list, before Webform's submit function sends the email.
    array_unshift($form['#submit'], 'webform_node_value_client_submit');
  }
}

/**
 * Add our configuration options to the Webform settings form.
 */
function webform_node_value_configuration_form(&$form) {
  $settings = webform_node_value_configuration_get($form['nid']['#value']);
  $form['webform_node_value'] = array(
    '#type' => 'fieldset',
    '#tree' => TRUE,
    '#title' => t('Set Value From A Node'),
    '#description' => t('Fill a Webform field with the value of a node field.'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );
  $form['webform_node_value']['node_path_source'] = array(
    '#type' => 'radios',
    '#required' => FALSE,
    '#title' => t('Path To Node'),
    '#description' => t('Where to get the path to the node.'),
    '#default_value' => isset($settings->node_path_source) ? $settings->node_path_source : 'unset',
    '#options' => array(
      'unset' => t('Value not set from a node'),
      'page' => t('From page webform is on'),
      'field' => t('From webform field'),
    ),
  );
  $form['webform_node_value']['prefix'] = array(
    '#type' => 'textfield',
    '#required' => FALSE,
    '#title' => t('Path Alias Prefix'),
    '#description' => t("Add a prefix to the path alias of the node, if necessary, e.g. 'sector/'. Ignore this if Path To Node is set to 'From page webform is on'."),
    '#default_value' => isset($settings->prefix) ? $settings->prefix : '',
  );
  $form['webform_node_value']['webform_source'] = array(
    '#type' => 'textfield',
    '#required' => FALSE,
    '#title' => t('Webform Source Field'),
    '#description' => t("Webform field who's value (key) will be used as a path to the node, e.g. 'airline'. Ignore this if Path To Node is set to 'From page webform is on'."),
    '#default_value' => isset($settings->webform_source) ? $settings->webform_source : '',
  );
  $form['webform_node_value']['node_field_name'] = array(
    '#type' => 'textfield',
    '#required' => FALSE,
    '#title' => t('Node Source Field'),
    '#description' => t("Node field to get a value from, e.g. 'field_sector_contact_email'"),
    '#default_value' => isset($settings->node_field_name) ? $settings->node_field_name : '',
  );
  $form['webform_node_value']['webform_destination'] = array(
    '#type' => 'textfield',
    '#required' => FALSE,
    '#title' => t('Webform Target Field'),
    '#description' => t("Webform field to put value from node into, e.g. 'send_to_email'"),
    '#default_value' => isset($settings->webform_destination) ? $settings->webform_destination : '',
  );
  array_unshift($form['#submit'], 'webform_node_value_configuration_submit');
}
function webform_node_value_configuration_submit($form, &$form_state) {
  $settings = $form_state['values']['webform_node_value'];
  $settings['nid'] = $form_state['values']['nid'];
  webform_node_value_configuration_save($settings);
  return;
}

/**
 * Submit callback for the client form.
 * Fetch node field value and insert it in Webform field.
 *
 * @param $form
 * @param $form_state
 */
function webform_node_value_client_submit($form, &$form_state) {
  $settings = webform_node_value_configuration_get($form_state['values']['details']['nid']);
  if ($settings === FALSE) {
    return;
  }
  switch ($settings->node_path_source) {
    case 'page':
      if (isset($_GET['webform_node_value_nid']) && !empty($_GET['webform_node_value_nid'])) {
        if (user_access('node/' . $_GET['webform_node_value_nid'])) {
          $nid = $_GET['webform_node_value_nid'];
        }
        else {
          watchdog('webform_node_value', t('Attempt to access node that user did not have permission to access.'));
        }
      }
      break;
    case 'field':
      if (!isset($form_state['values']['submitted'][$settings->webform_source])) {
        watchdog('webform_node_value', 'Source field not found on Webform: %field', array(
          '%field' => $settings->webform_source,
        ));
        return;
      }
      $webform_value = $form_state['values']['submitted'][$settings->webform_source];
      $nid = webform_node_value_nid_from_field($settings, $webform_value);
      break;
  }
  if (empty($nid)) {
    watchdog('webform_node_value', "Node ID %nid couldn't be found", array(
      '%nid' => $nid,
    ));
    return;
  }

  // Get node field info.
  $node = node_load($nid);
  $node_field = field_get_items('node', $node, $settings->node_field_name);
  if (empty($node_field)) {
    watchdog('webform_node_value', "Field %field could not be found for Node ID %nid (%title)", array(
      '%field' => $settings->node_field_name,
      '%nid' => $nid,
      '%title' => $node->title,
    ));
    return;
  }
  $node_field_value = field_view_value('node', $node, $settings->node_field_name, $node_field[0]);

  // Set value of field in Webform with value from node.
  $field_name = trim(check_plain($settings->webform_destination));
  $form_state['values']['submitted'][$field_name] = strip_tags(render($node_field_value));
  return;
}

/**
 * Get nid from the page webform is embedded in.
 *
 * @return int|bool
 */
function webform_node_value_nid_from_page() {
  $path = current_path();
  $path_parts = explode('/', $path);
  if ($path_parts[0] != 'node' || !is_numeric($path_parts[1])) {
    return FALSE;
  }
  $nid = $path_parts[1];
  return $nid;
}

/**
 * Set value of field in Webform with value from node.
 *
 * @param $settings
 * @param $webform_value
 * @return bool|string
 */
function webform_node_value_nid_from_field($settings, $webform_value) {
  if (empty($webform_value)) {
    return '';
  }
  $node_alias_path = ltrim($settings->prefix . $webform_value, '/');
  $path_parts = explode('/', $node_alias_path);
  if ($path_parts[0] != 'node' || !is_numeric($path_parts[1])) {
    $node_system_path = drupal_get_normal_path($node_alias_path);

    // No node system path found.
    if ($node_alias_path == $node_system_path) {
      watchdog('webform_node_value', 'System path not found %path', array(
        '%path' => $node_system_path,
      ));
      return '';
    }
    $path_parts = explode('/', $node_system_path);
  }
  if ($path_parts[0] != 'node' || !is_numeric($path_parts[1])) {
    watchdog('webform_node_value', t('Node not found.'));
    return '';
  }
  $nid = $path_parts[1];
  return $nid;
}

/**
 * Save the webform configuration for webform_node_value
 */
function webform_node_value_configuration_save($settings) {
  db_delete('webform_node_value')
    ->condition('nid', $settings['nid'])
    ->execute();
  if (isset($settings['node_path_source']) && $settings['node_path_source'] != 'unset') {
    db_insert('webform_node_value')
      ->fields($settings)
      ->execute();
  }
}

/**
 * Get the webform_node_value configuration for a webform
 *
 * @param $nid
 * @return object
 */
function webform_node_value_configuration_get($nid) {
  $configuration = db_query_range('SELECT * FROM {webform_node_value} WHERE nid = :nid', 0, 1, array(
    ':nid' => $nid,
  ))
    ->fetchObject();
  return $configuration;
}

Functions

Name	Description
webform_node_value_client_submit	Submit callback for the client form. Fetch node field value and insert it in Webform field.
webform_node_value_configuration_form	Add our configuration options to the Webform settings form.
webform_node_value_configuration_get	Get the webform_node_value configuration for a webform
webform_node_value_configuration_save	Save the webform configuration for webform_node_value
webform_node_value_configuration_submit
webform_node_value_form_alter	Implements hook_form_alter().
webform_node_value_nid_from_field	Set value of field in Webform with value from node.
webform_node_value_nid_from_page	Get nid from the page webform is embedded in.