Club Drupal

<?php

/**

 * @file

 * Provides uninstallation functions.

 */

/**

 * Implements hook_uninstall().

 */

function diff_uninstall() {

  // Bulk delete entity based variables.

  $prefixes = array(

    'diff_enable_revisions_page_',

    'diff_show_',

    'diff_view_mode_',

    'diff_admin_path_',

    'diff_default_state_',

  );

  foreach ($prefixes as $prefix) {

    db_delete('variable')

      ->condition('name', db_like($prefix) . '%', 'LIKE')

      ->execute();

  }

  // Delete global variables.

  variable_del('diff_context_lines_trailing');

  variable_del('diff_context_lines_leading');

  variable_del('diff_theme');

  variable_del('diff_radio_behavior', '');

  foreach (field_info_fields() as $field) {

    variable_del("diff_{$field['module']}_field_{$field['type']}_default_options");

  }

}

/**

 * Updates the existing system variables to target the entity type and bundle.

 */

function diff_update_7300() {

  $node_types = array_keys(node_type_get_types());

  foreach ($node_types as $bundle) {

    $type_variables = array(

      'show_preview_changes',

      'enable_revisions_page',

      'show_diff_inline',

    );

    foreach ($type_variables as $prefix) {

      $setting = variable_get($prefix . '_' . $bundle, NULL);

      if (isset($setting)) {

        variable_del($prefix . '_' . $bundle);

        variable_set('diff_' . $prefix . '_node_' . $bundle, $setting);

      }

    }

  }

}

/**

 * Removed diff_update_7301().

 */

/**

 * Removed diff_update_7302().

 */

/**

 * Renames some internal settings names.

 */

function diff_update_7303() {

  // Get current values

  $radio = variable_get('diff_script_revisioning', 'simple');

  $leading = variable_get('diff_leading_context_lines', 2);

  $trailing = variable_get('diff_trailing_context_lines', 2);

  // Create new variable names

  variable_set('diff_radio_behavior', $radio);

  variable_set('diff_context_lines_leading', $leading);

  variable_set('diff_context_lines_trailing', $trailing);

  // Delete old variables

  variable_del('diff_script_revisioning');

  variable_del('diff_leading_context_lines');

  variable_del('diff_trailing_context_lines');

}

/**

 * Removes unused variable settings and merges inline diff block settings.

 */

function diff_update_7304() {

  // This is now always applied to text fields.

  variable_del('diff_normalise_text');

  // Merge the content type settings for the inline diff block into a single variable.

  // diff_update_7300() - show_diff_inline_TYPE to diff_show_diff_inline_node_TYPE

  $node_types = array_keys(node_type_get_types());

  $enabled_types = array();

  foreach ($node_types as $node_type) {

    if (variable_get('diff_show_diff_inline_node_' . $node_type, FALSE)) {

      $enabled_types[$node_type] = $node_type;

    }

    variable_del('diff_show_diff_inline_node_' . $node_type);

  }

  variable_set('diff_show_diff_inline_node_bundles', $enabled_types);

  // Warn users that these settings are altered.

  drupal_set_message(t('Diff <em>Inline differences</em> content type settings are now located within the <em>Inline differences</em> block settings.'));

}

/**

 * Updates to normalize the new view mode settings.

 */

function diff_update_7305() {

  // Rebuild the menus.

  variable_set('menu_rebuild_needed', TRUE);

  // Removed the enforced entity view mode.

  db_delete('variable')

      ->condition('name', db_like('diff_view_mode_standard_node_') . '%', 'LIKE')

      ->execute();

  // Removes the configurable view mode for the inline diff block, as this

  // is fairly meaningless and confusing to users.

  db_delete('variable')

      ->condition('name', db_like('diff_view_mode_inline_') . '%', 'LIKE')

      ->execute();

}