cacheflush_advanced.module in CacheFlush 7

Cacheflush advanced preset form.

File

cacheflush_advanced/cacheflush_advanced.module

<?php

/**
 * @file
 * Cacheflush advanced preset form.
 */

/**
 * Implements hook_form_alter().
 */
function cacheflush_advanced_form_alter(&$form, &$form_state, $form_id) {
  if ($form_id != 'cacheflush_preset_form') {
    return;
  }
  $form['vertical_tabs_advance'] = array(
    '#type' => 'fieldset',
    '#title' => t('Custom (advanced)'),
    '#collapsible' => TRUE,
    '#collapsed' => FALSE,
    '#group' => 'cacheflush_vertical_tabs',
    '#tree' => TRUE,
    '#weight' => count($form_state['cacheflush_vertical_tabs']),
  );

  // Advanced table form.
  $form['vertical_tabs_advance']['cacheflush_advanced_table'] = array(
    '#theme' => 'cacheflush_advanced_form_table',
    '#prefix' => '<div id="cacheflush-advanced-settings-table">',
    '#suffix' => '</div>',
  );

  // Check if Ajax call.
  if (isset($form_state['clicked_button']) && ($form_state['clicked_button']['#name'] == 'add' || strpos($form_state['clicked_button']['#name'], 'remove_') === 0)) {

    // Check if Remove row and remove.
    if (strpos($form_state['clicked_button']['#name'], 'remove_') === 0) {
      list($null, $remove_id) = explode('remove_', $form_state['clicked_button']['#name']);
      unset($form_state['input']['vertical_tabs_advance']['cacheflush_advanced_table'][$remove_id]);
    }

    // ReCreat table.
    if (isset($form_state['input']['vertical_tabs_advance']['cacheflush_advanced_table'])) {
      foreach ($form_state['input']['vertical_tabs_advance']['cacheflush_advanced_table'] as $key => $value) {
        if ('remove_' . $key != $form_state['clicked_button']['#name']) {
          $form['vertical_tabs_advance']['cacheflush_advanced_table'][$key] = _cacheflush_advanced_table_row($key, $value['cid'], $value['table'], $value['wildcard'] ? TRUE : FALSE);
        }
      }
    }

    // Check if Add row and add 1 more.
    if ($form_state['clicked_button']['#name'] == 'add') {
      $id = 1;
      if (isset($form_state['input']['vertical_tabs_advance']['cacheflush_advanced_table'])) {
        $id = max(array_keys($form_state['input']['vertical_tabs_advance']['cacheflush_advanced_table'])) + 1;
      }
      $form['vertical_tabs_advance']['cacheflush_advanced_table'][$id] = _cacheflush_advanced_table_row($id);
    }
  }
  else {

    // If is preset edit add the advanced preset rows.
    if ($form_state['cacheflush_preset_is_edit']) {
      $i = 0;
      foreach ($form_state['cacheflush_preset_list'][$form_state['cacheflush_preset_id']]['#cacheflush_preset_values'] as $key => $value) {
        $pos = strpos($key, 'advanced-preset-');
        if ($pos !== FALSE) {
          $form['vertical_tabs_advance']['cacheflush_advanced_table'][$i] = _cacheflush_advanced_table_row($i, $value['query']['cid'], $value['query']['table'], $value['query']['wildcard'] ? TRUE : FALSE);
          $i++;
        }
      }
    }
    else {

      // Add 1 row by default.
      $form['vertical_tabs_advance']['cacheflush_advanced_table'][0] = _cacheflush_advanced_table_row(0);
    }
  }

  // Add new row button.
  $form['vertical_tabs_advance']['add'] = array(
    '#name' => 'add',
    '#type' => 'button',
    '#value' => t('Add another row'),
    '#limit_validation_errors' => array(),
    '#ajax' => array(
      'callback' => '_cacheflush_advanced_form_callback',
      'wrapper' => 'cacheflush-advanced-settings-table',
      'method' => 'replace',
      'effect' => 'fade',
    ),
  );
  $form['vertical_tabs_advance']['note'] = array(
    '#type' => 'item',
    '#title' => t('Note'),
    '#weight' => -10,
    '#description' => t('Create custom preset which will use the <a href="@href">cache_clear_all()</a> function.', array(
      '@href' => 'http://api.drupal.org/api/drupal/includes!cache.inc/function/cache_clear_all/6',
    )) . '<ul><li>' . t('<b>Cache ID ($cid)</b>: The cache ID to delete.') . '</li><li>' . t('<b>Table ($table)</b>: The name of the table to delete from.') . '</li><li>' . t('<b>Wildcard ($wildcard)</b>: If wildcard is TRUE, cache ID`s starting with $cid are deleted in addition to the exact cache ID specified by $cid.') . '</li></ul>',
  );
  $form['#validate'][] = 'cacheflush_advanced_preset_form_validate';
}

/**
 * Implements advanced preset validation.
 */
function cacheflush_advanced_preset_form_validate(&$form, &$form_state) {

  // Check for advanced preset.
  if (isset($form_state['values']['vertical_tabs_advance']['cacheflush_advanced_table'])) {
    foreach ($form_state['input']['vertical_tabs_advance']['cacheflush_advanced_table'] as $key => $value) {
      if (isset($value['wildcard']) || $value['cid'] || $value['table']) {
        if ($value['cid'] && $value['table']) {
          unset($value['operations']);
          $form_state['cacheflush_preset_list'][$form_state['cacheflush_preset_id']]['#cacheflush_preset_values']["advanced-preset-{$key}"] = array(
            'is_table' => TRUE,
            'query' => $value,
          );
        }
        else {
          if (isset($value['wildcard']) && (!$value['cid'] && !$value['table'])) {
            form_error($form['vertical_tabs_advance']['cacheflush_advanced_table'][$key]['cid'], t('The cache ID field is mandatory.'));
            form_error($form['vertical_tabs_advance']['cacheflush_advanced_table'][$key]['table'], t('The table field is mandatory.'));
          }
          elseif (!$value['cid']) {
            form_error($form['vertical_tabs_advance']['cacheflush_advanced_table'][$key]['cid'], t('The cache ID field is mandatory.'));
          }
          else {
            form_error($form['vertical_tabs_advance']['cacheflush_advanced_table'][$key]['table'], t('The table field is mandatory.'));
          }
        }
      }
    }
  }
}

/**
 * Theme cacheflush table for advanced preset.
 * 
 * @param array $variables
 *   Theme variables.
 *
 * @return array
 *   Table theme.
 */
function theme_cacheflush_advanced_form_table($variables) {
  $form = $variables['form'];
  $rows = array();
  foreach (element_children($form) as $key) {
    $rows[$key] = array(
      'data' => array(
        drupal_render($form[$key]['cid']),
        drupal_render($form[$key]['table']),
        drupal_render($form[$key]['wildcard']),
        drupal_render($form[$key]['operations']),
      ),
    );
  }
  $headers = array(
    t('Cache ID'),
    t('Table'),
    t('Wildcard'),
    t('Operations'),
  );
  return theme('table', array(
    'header' => $headers,
    'rows' => $rows,
  ));
}

/**
 * Build cacheflush custom settings row form elements.
 *
 * @param int $delta
 *   Row weight.
 * @param string $cid
 *   Cache ID. 
 * @param string $table
 *   Table id to be flushed.
 * @param boolan $wildcard
 *   Wildcard checkbox value.
 *
 * @return string
 *   Advanced table row. 
 */
function _cacheflush_advanced_table_row($delta, $cid = '', $table = '', $wildcard = FALSE) {
  static $table_options;
  if (empty($table_options)) {
    $cache_tables = array_merge(array(
      'cache',
      'cache_block',
      'cache_filter',
      'cache_page',
    ), module_invoke_all('flush_caches'));
    asort($cache_tables);
    $table_options = array_combine($cache_tables, $cache_tables);
    array_unshift($table_options, "- Select a table -");
  }
  $form['cid'] = array(
    '#type' => 'textfield',
    '#default_value' => $cid,
    '#size' => 20,
  );
  $form['table'] = array(
    '#type' => 'select',
    '#default_value' => $table,
    '#options' => $table_options,
  );
  $form['wildcard'] = array(
    '#title' => t('TRUE'),
    '#type' => 'checkbox',
    '#default_value' => $wildcard,
  );
  $form['operations'] = array(
    '#name' => 'remove_' . $delta,
    '#type' => 'button',
    '#value' => t('Remove'),
    '#limit_validation_errors' => array(),
    '#ajax' => array(
      'callback' => '_cacheflush_advanced_form_callback',
      'wrapper' => 'cacheflush-advanced-settings-table',
      'method' => 'replace',
      'effect' => 'fade',
    ),
  );
  return $form;
}

/**
 * AJAX callback for advanced table.
 *
 * @return array
 *   Advanced preset table via ajax.
 */
function _cacheflush_advanced_form_callback($form, $form_state) {
  return $form['vertical_tabs_advance']['cacheflush_advanced_table'];
}

Functions

Name	Description
cacheflush_advanced_form_alter	Implements hook_form_alter().
cacheflush_advanced_preset_form_validate	Implements advanced preset validation.
theme_cacheflush_advanced_form_table	Theme cacheflush table for advanced preset.
_cacheflush_advanced_form_callback	AJAX callback for advanced table.
_cacheflush_advanced_table_row	Build cacheflush custom settings row form elements.