double_field.install in Double Field 7.2

Install, update and uninstall functions for the double field module.

File

double_field.install

<?php

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

/**
 * Implements hook_field_schema().
 *
 * @see http://drupal.org/node/159605
 */
function double_field_field_schema($field) {
  foreach (array(
    'first',
    'second',
  ) as $subfield) {

    // Before 7.x-2.x maxlength was stored as "$subfield_maxlength".
    // This might lead to "Notice: Undefined index" while running update.php.
    if (empty($field['settings'][$subfield]['maxlength'])) {
      $field['settings'][$subfield]['maxlength'] = 255;
    }

    // Before 7.x-2.3 column type was defined according to the field maxlength.
    // We should prevent changing column type because it already can store
    // some values. See field_sql_storage_field_update_forbid().
    if (empty($field['settings'][$subfield]['type'])) {
      $field['settings'][$subfield]['type'] = $field['settings'][$subfield]['maxlength'] < 16384 / 3 ? 'varchar' : 'text';
    }
    $type = $field['settings'][$subfield]['type'];
    $columns[$subfield] = array(
      'type' => $type == 'decimal' ? 'numeric' : $type,
      'not null' => FALSE,
      'description' => ucfirst($subfield) . ' subfield value.',
    );
    switch ($field['settings'][$subfield]['type']) {
      case 'varchar':
        $columns[$subfield]['length'] = $field['settings'][$subfield]['maxlength'];
        break;
      case 'text':
        $columns[$subfield]['size'] = 'big';
        break;
      case 'int':
      case 'float':
        $columns[$subfield]['size'] = $field['settings'][$subfield]['size'];
        break;
      case 'decimal':
        $columns[$subfield]['precision'] = $field['settings'][$subfield]['precision'];
        $columns[$subfield]['scale'] = $field['settings'][$subfield]['scale'];
        break;
    }
  }
  return array(
    'columns' => $columns,
  );
}

/**
 * Fix fields settings.
 */
function double_field_update_7201() {
  $field_names = array();
  foreach (field_read_fields(array(
    'module' => 'double_field',
  )) as $field) {
    $field_names[] = $field['field_name'];
    foreach (array(
      'first',
      'second',
    ) as $subfield) {
      $field['settings'][$subfield]['maxlength'] = $field['settings'][$subfield . '_maxlength'];
      unset($field['settings'][$subfield . '_maxlength']);
    }
    field_update_field($field);
    $params = array(
      'field_name' => $field_names,
    );
    foreach (field_read_instances($params) as $instance) {

      // Update widget type and widget settings.
      $instance['widget']['type'] = 'textfield_&_textfield';
      $widget_info = double_field_field_widget_info();
      foreach (array(
        'first',
        'second',
      ) as $subfield) {
        $old_settings = $instance['widget']['settings'][$subfield];
        $instance['widget']['settings'][$subfield] = $widget_info['textfield_&_textfield']['settings'][$subfield];
        $instance['widget']['settings'][$subfield]['textfield']['size'] = $old_settings['size'];
        unset($old_settings['size']);
        $instance['widget']['settings'][$subfield]['general'] = $old_settings;
      }

      // Update formatter type and formatter settings.
      $formatters = double_field_field_formatter_info();
      foreach ($instance['display'] as &$display) {
        switch ($display['type']) {
          case 'double_field_inline':
            $display['type'] = 'double_field_unformatted_list';
            $display['settings']['style'] = 'inline';
            break;
          case 'double_field_block':
            $display['type'] = 'double_field_unformatted_list';
            $display['settings']['style'] = 'block';
            break;
          case 'double_field_fieldset':
            $display['type'] = 'double_field_fieldset';
            break;
        }
        foreach (array(
          'first',
          'second',
        ) as $subfield) {
          $display['settings'][$subfield] = array_merge($formatters[$display['type']]['settings'][$subfield], $display['settings'][$subfield]);
        }
      }

      // Save the instance data.
      field_update_instance($instance);
    }
  }
}

/**
 * Add placeholder attribute setting.
 */
function double_field_update_7202() {
  $field_names = array();
  foreach (field_read_fields(array(
    'module' => 'double_field',
  )) as $field_name => $field) {
    $field_names[] = $field_name;
    foreach (array(
      'first',
      'second',
    ) as $subfield) {

      // Take type value from field schema.
      $field['settings'][$subfield]['type'] = $field['columns'][$subfield]['type'];
      $field['settings'][$subfield]['size'] = 'normal';
      $field['settings'][$subfield]['precision'] = 10;
      $field['settings'][$subfield]['scale'] = 2;
    }
    field_update_field($field);
  }
  $params = array(
    'field_name' => $field_names,
  );
  foreach (field_read_instances($params) as $instance) {
    foreach (array(
      'first',
      'second',
    ) as $subfield) {
      if (isset($instance['widget']['settings'][$subfield]['textfield'])) {
        $instance['widget']['settings'][$subfield]['textfield']['placeholder'] = '';
      }
      elseif (isset($instance['widget']['settings'][$subfield]['textarea'])) {
        $instance['widget']['settings'][$subfield]['textarea']['placeholder'] = '';
      }
    }
    field_update_instance($instance);
  }
}

Functions

Name	Description
double_field_field_schema	Implements hook_field_schema().
double_field_update_7201	Fix fields settings.
double_field_update_7202	Add placeholder attribute setting.