source: sipes/0.3-modules/ente_planificador_term_fields/ente_planificador_term_fields.install @ 983139c

<?php
/**
 * @file
 * Installation file for the Term Fields Ente Planificador module
 */

/**
 * Implements hook_install().
 */
function ente_planificador_term_fields_install() {
  // It is time now to alter the {term_fields_term} schema if necessary.
  $ret = array();
  // Load the dependent Taxonomy module, in case it has been disabled.
  drupal_load('module', 'taxonomy');
  module_load_include('inc', 'term_fields', 'term_fields.admin');

  // Create the forum vocabulary if it does not exist.
  $vocabulary = taxonomy_vocabulary_load(variable_get('ente_ubicacion_vocabulary', 0));
  if (!$vocabulary) {
    $edit = array(
      'name' => t('Ubicación'),
      'machine_name' => 'ubicacion',
      'description' => t('Lista de Entidades, municipios y parroquias de Venezuela'),
      'hierarchy' => 1,
      'module' => 'ente_planificador',
      'weight' => -10,
    );
    $vocabulary = $edit;
    taxonomy_save_vocabulary($vocabulary);
    variable_set('ente_ubicacion_vocabulary', $vocabulary['vid']);
    $vocabulary = (object) $vocabulary;
  }

  //create field codigo
  $field_code_geo = array(
    'fid' => 'codigo_geo_localizacion',
    'title' => 'Codigo',
    'description' =>  '',
    'required' => 0,
    'weight' => 0,
    'type' => 'text',
    'options' => array(
       'default' => array(
         'value' => '',
       ),
      'max_length' => '',
      'size' => '',
    ),
    'widget' => 'textfield',
    'vid' => $vocabulary->vid,
  );

  $field = (object) $field_code_geo;
  $field->options = array();
  $field->module = 'ente_planificador_term_fields';

  if ($field_info = term_fields_get_fields_info($field->type)) {
    $field->module = $field_info['module'];
  }
  else {
    drupal_set_message(t('An error occured while saving the new field %title (%field). If such error persists, please contact a site administrator.', array('%title' => $field->title, '%field' => $field->fid)), 'error');
    return;
  }

  // Flag the fiels as instantiated.
  if (empty($field->instantiated)) {
    $field->instantiated = 1;
  }

  drupal_write_record('term_fields', $field);
  
  drupal_write_record('term_fields', $field, array('fid'));
  drupal_write_record('term_fields_instance', $field, array('fid', 'vid'));

  // Get the new columns if any.
  $columns = module_invoke($field->module, 'term_fields_api', 'storage', $field);

  //add new field in table
  if (!db_column_exists('term_fields_term', $field->fid)) {
    $name = 'codigo_geo_localizacion_value';
    foreach ($columns as $column) {
      db_add_field($ret, 'term_fields_term', $name, $column);
    }
  }
}

/*
 * Implementation of hook_uninstall
 */
function ente_planificador_term_fields_uninstall() {
  // Load the dependent Taxonomy module, in case it has been disabled.
  variable_del('ente_ubicacion_vocabulary');
}