mathfield.install in Math Field 7

Install, update and uninstall functions for the mathfield module.

File

mathfield.install

<?php

/**
 * @file
 * Install, update and uninstall functions for the mathfield module.
 */

/**
 * Implements hook_field_schema().
 */
function mathfield_field_schema($field) {
  switch ($field['type']) {
    case 'mathfield':
      $columns = array(
        'value' => array(
          'type' => 'numeric',
          'precision' => $field['settings']['precision'],
          'scale' => $field['settings']['scale'],
          'not null' => FALSE,
        ),
      );
      break;
  }
  return array(
    'columns' => $columns,
  );
}

/**
 * Add field dependency setting for existing mathfields.
 */
function mathfield_update_7000() {
  foreach (field_info_field_map() as $field_name => $field) {
    if ($field['type'] == 'mathfield') {
      $info = field_info_field($field_name);
      $expression = $info['settings']['expression'];
      $tokens = _mathfield_extract_tokens($expression);
      $info['settings']['field_dependencies'] = array();
      foreach ($tokens as $data) {
        $info['settings']['field_dependencies'][] = $data['field_name'];
      }
      field_update_field($info);
    }
  }
}

Functions

Name	Description
mathfield_field_schema	Implements hook_field_schema().
mathfield_update_7000	Add field dependency setting for existing mathfields.