maxlength.inc in Maxlength 7

Business logic for maxlength

File

maxlength.inc

<?php

/**
 * @file
 *   Business logic for maxlength
 */
function _maxlength_content_form_alter(&$form, &$form_state, $form_id) {
  $type = $form['type']['#value'];

  // update the title as needed
  if (isset($form['title'])) {
    $form['title']['#after_build'] = array(
      '_maxlength_format_element',
    );
    $form['title']['#max_length_properties'] = array(
      $form['title']['#default_value'],
      'title',
      'title',
      $type,
    );
  }

  // Get a list of all fields for this content type

  //$list = array_keys(content_fields(NULL, $type));
  $list = array_keys(field_info_instances('node', $type));

  // Update CCK fields as needed
  foreach ($list as $field) {
    $field_info = field_info_field($field);
    if ($field_info['module'] == 'text' && ($field_info['type'] == 'text' || ($field_info['type'] = 'text_long')) && is_array($form[$field])) {
      foreach (element_children($form[$field]) as $key) {
        foreach (element_children($form[$field][$key]) as $index) {
          if (is_numeric($index)) {
            $form[$field][$key][$index]['#after_build'] = array(
              '_maxlength_format_element',
            );
            $default_value = isset($form[$field][$key][$index]['value']['#default_value']) ? $form[$field][$key][$index]['value']['#default_value'] : (isset($form[$field][$key][$index]['#default_value']) ? $form[$field][$key][$index]['#default_value'] : '');
            $form[$field][$key][$index]['#max_length_properties'] = array(
              $default_value,
              $field,
              str_replace('_', '-', $field) . '-' . $key . '-' . $index . '-value',
              $type,
            );
          }
        }
      }
    }
  }
}
function _maxlength_content_type_form_alter(&$form, &$form_state, $form_id) {
  $type = $form['#node_type']->type;

  // If the Title Module is enabled and the Title Field is Replaced the maxlength Module
  // we don't need this functionality any more, because the title is now a field itself
  if (!module_exists('title') || title_field_replacement_enabled('node', $type, 'title') !== TRUE) {
    $labels = array(
      '-3' => 'title',
    );
    foreach ($labels as $weight => $label) {

      // bit of a hack to allow us to position the input fields correctly
      $form['submission'][$label . '_label']['#weight'] = $weight - 1;
      $form['submission']['maxlength_' . $label] = array(
        '#type' => 'fieldset',
        '#weight' => $weight,
        '#title' => t('Limit @type  length', array(
          '@type ' => $label,
        )),
        '#collapsible' => TRUE,
        '#group' => 'additional_settings',
        '#collapsed' => strlen(variable_get($type . '_' . $label, '')) == 0,
      );
      $form['submission']['maxlength_' . $label]['maxlength_' . $label] = array(
        '#type' => 'textfield',
        '#title' => t('@label max length', array(
          '@label' => ucwords($label),
        )),
        '#field_suffix' => t('characters'),
        '#return_value' => 1,
        '#size' => 4,
        '#default_value' => variable_get('maxlength_' . $label . '_' . $type, ''),
        '#description' => t('Maximum number of characters allowed for the @type field of this content type. Leave blank for an unlimited size.', array(
          '@type' => $label,
        )) . '<br/>' . '<b>' . t('Please remember, it counts all characters, including HTML, so may not work as expected with rich text editors e.g. FCKeditor / tinyMCE.') . '</b>',
      );
      $form['submission']['maxlength_' . $label]['maxlength_' . $label . '_js'] = array(
        '#type' => 'checkbox',
        '#title' => t('Enable remaining characters countdown for the @label', array(
          '@label' => ucwords($label),
        )),
        '#default_value' => variable_get('maxlength_' . $label . '_js_' . $type, '0'),
        '#description' => t('This will enable a Javascript based count down, as well as the client side validation for the @type field of this content type. If no limit set this is ignored.', array(
          '@type' => $label,
        )),
      );
      $form['submission']['maxlength_' . $label]['maxlength_' . $label . '_text'] = array(
        '#type' => 'textarea',
        '#title' => t('@label count down message', array(
          '@label' => ucwords($label),
        )),
        '#default_value' => variable_get('maxlength_' . $label . '_text_' . $type, 'Content limited to !limit characters, remaining: <strong>!remaining</strong>'),
        '#description' => t('The text used in the Javascript message under the @type input, where "@limit", "@remaining" and "@count" are replaced by the appropriate numbers.', array(
          '@type' => $label,
        )),
      );
    }
  }
}
function _maxlength_cck_form_alter(&$form, &$form_state, $form_id) {

  //if form is being loaded, add extra config fields
  if (empty($form['#post'])) {
    $new_fields = array();
    foreach ($form['field']['settings'] as $key => $field) {
      $new_fields[$key] = $field;
      $field_key = $form['instance']['field_name']['#value'];
      if (!(strpos($field_key, 'field_') === 0)) {
        $type = isset($form['instance']['bundle']['#value']) ? $form['instance']['bundle']['#value'] : '';
        if ($type != '') {
          $field_key .= '_' . $type;
        }
      }
      if ($key == 'max_length') {
        $new_fields['maxlength_' . $form['instance']['field_name']['#value'] . '_js'] = array(
          '#type' => 'checkbox',
          '#title' => t('Enable remaining characters countdown for this field'),
          '#default_value' => variable_get('maxlength_' . $field_key . '_js', '0'),
          '#description' => t('This will enable a Javascript based count down, as well as the client side validation for this field. If no limit set this is ignored.'),
        );
        $new_fields['maxlength_' . $form['instance']['field_name']['#value'] . '_text'] = array(
          '#type' => 'textarea',
          '#title' => t('Count down message'),
          '#default_value' => variable_get('maxlength_' . $field_key . '_text', 'Content limited to !limit characters, remaining: <strong>!remaining</strong>'),
          '#description' => t('The text used in the Javascript message under the input, where "!limit", "!remaining" and "!count" are replaced by the appropriate numbers.'),
        );
      }
    }
    $form['field']['settings'] = $new_fields;
  }
  $form['#submit'][] = '_maxlength_cck_form_submit';
}
function _maxlength_cck_form_submit($form, &$form_state) {
  $type = isset($form['instance']['bundle']['#value']) ? $form['instance']['bundle']['#value'] : '';
  if (strpos($form['instance']['field_name']['#value'], 'field_') === 0) {
    variable_set('maxlength_' . $form['instance']['field_name']['#value'], $form_state['values']['field']['settings']['max_length']);
    variable_set('maxlength_' . $form['instance']['field_name']['#value'] . '_js', $form_state['values']['field']['settings']['maxlength_' . $form['instance']['field_name']['#value'] . '_js']);
    variable_set('maxlength_' . $form['instance']['field_name']['#value'] . '_text', $form_state['values']['field']['settings']['maxlength_' . $form['instance']['field_name']['#value'] . '_text']);
  }
  elseif ($type != '') {
    variable_set('maxlength_' . $form['instance']['field_name']['#value'] . '_' . $type, $form_state['values']['field']['settings']['max_length']);
    variable_set('maxlength_' . $form['instance']['field_name']['#value'] . '_js_' . $type, $form_state['values']['field']['settings']['maxlength_' . $form['instance']['field_name']['#value'] . '_js']);
    variable_set('maxlength_' . $form['instance']['field_name']['#value'] . '_text_' . $type, $form_state['values']['field']['settings']['maxlength_' . $form['instance']['field_name']['#value'] . '_text']);
  }
}
function _maxlength_get_values($field = 'body', $type = '') {
  $values = '';
  $values['limit'] = FALSE;

  //CCK
  if (strpos($field, 'field_') === 0) {
    $values['limit'] = variable_get('maxlength_' . $field, FALSE);
    $values['use_js'] = variable_get('maxlength_' . $field . '_js', FALSE);
    $values['text'] = variable_get('maxlength_' . $field . '_text', FALSE);
  }
  elseif ($type != '') {
    $values['limit'] = variable_get('maxlength_' . $field . '_' . $type, FALSE);
    $values['use_js'] = variable_get('maxlength_' . $field . '_js_' . $type, FALSE);
    $values['text'] = variable_get('maxlength_' . $field . '_text_' . $type, FALSE);
  }
  if ($values['limit']) {
    return $values;
  }
  else {
    return FALSE;
  }
}

Functions

Name	Description
_maxlength_cck_form_alter
_maxlength_cck_form_submit
_maxlength_content_form_alter	@file Business logic for maxlength
_maxlength_content_type_form_alter
_maxlength_get_values