lter/deims

<?php

/**
 * @file
 * Install, update, and uninstall functions for the DEIMS data explorer module.
 */

/**
 * Implements hook_install().
 */
function deims_data_explorer_install() {
  if (!field_info_field('field_deims_data_explorer')) {
    $field = array(
      'field_name' => 'field_deims_data_explorer',
      'type' => 'schema_reference',
    );
    field_create_field($field);

    $instance = array(
      'field_name' => 'field_deims_data_explorer',
      'entity_type' => 'node',
      'label' => 'Remote Data Source',
      'bundle' => 'data_source',
    );
    field_create_instance($instance);
  }
}

/**
 * Implements hook_requirements().
 */
function deims_data_explorer_requirements($phase) {
  $requirements = array();

  // NOTE: this is set in a variable_get elsewhere, so this may need to be
  // changed if the value is changed in the DB.
  $directory = 'public://data-downloads';

  // Check to make sure the data-downloads directory is writeable.
  if (!file_prepare_directory($directory, FILE_CREATE_DIRECTORY)) {
    $requirements['deims_data_explorer'] = array(
      'title' => 'Directory must be writeable.',
      'description' => 'The directory must be writeable by Drupal.',
      'severity' => REQUIREMENT_WARNING,
      'value' => 'Not Writable',
    );
  }

  return $requirements;
}