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<?php

/**

 * @file

 * Webform_validation installation file.

 */

/**

 * Implements hook_schema().

 */

function webform_validation_schema() {

  $schema['webform_validation_rule'] = array(

    'description' => 'Stores rule definitions',

    'fields' => array(

      'ruleid' => array(

        'type' => 'serial',

        'description' => 'Unique identifier for a rule',

        'unsigned' => TRUE,

        'not null' => TRUE,

      ),

      'rulename' => array(

        'type' => 'varchar',

        'description' => 'Name for the rule',

        'not null' => TRUE,

        'default' => '',

        'length' => 255,

      ),

      'nid' => array(

        'type' => 'int',

        'description' => 'The webform {node}.nid',

        'not null' => TRUE,

        'default' => 0,

        'unsigned' => TRUE,

      ),

      'validator' => array(

        'type' => 'varchar',

        'description' => 'The validator key',

        'not null' => TRUE,

        'default' => '',

        'length' => 255,

      ),

      'data' => array(

        'type' => 'text',

        'description' => 'Additional rule data',

        'not null' => FALSE,

      ),

      'error_message' => array(

        'type' => 'text',

        'description' => 'Rule error message',

        'not null' => FALSE,

      ),

      'negate' => array(

        'type' => 'int',

        'size' => 'tiny',

        'unsigned' => TRUE,

        'description' => 'Validate the inverse of the rule',

        'not null' => TRUE,

        'default' => 0,

      ),

      'weight' => array(

        'description' => 'Weight of the rule order.',

        'type' => 'int',

        'not null' => TRUE,

        'unsigned' => FALSE,

        'default' => 0,

      ),

    ),

    'primary key' => array('ruleid'),

    'indexes' => array(

      'nid' => array('nid'),

    ),

  );

  $schema['webform_validation_rule_components'] = array(

    'description' => 'Stores components linked to a rule',

    'fields' => array(

      'ruleid' => array(

        'type' => 'int',

        'description' => 'Unique identifier for a rule',

        'not null' => TRUE,

        'default' => 0,

        'unsigned' => TRUE,

      ),

      'cid' => array(

        'type' => 'int',

        'description' => 'The webform component id',

        'not null' => TRUE,

        'default' => 0,

        'unsigned' => TRUE,

      ),

    ),

    'primary key' => array('ruleid', 'cid'),

  );

  return $schema;

}

/**

 * Implements hook_update_N().

 */

/**

 * Update numeric validator range to new syntax.

 */

function webform_validation_update_1() {

  $ret = array();

  $has_numeric_validator = FALSE;

  $result = db_query("SELECT ruleid, data FROM {webform_validation_rule} WHERE validator = 'numeric'");

  foreach ($result as $row) {

    $has_numeric_validator = TRUE;

    $range = $row->data;

    $range = _webform_validation_update_range_syntax($range);

    db_update('webform_validation_rule')

      ->fields(array(

        'data' => $range,

      ))

      ->condition('ruleid', $row->ruleid, '=')

      ->execute();

  }

  if ($has_numeric_validator) {

    drupal_set_message(t('The numeric validation rule range syntax has changed with this release. Existing numeric validation rules were found and updated. Please verify that they still work as expected!'), 'warning');

  }

  return $ret;

}

/**

 * Helper function: update numeric validator range to new syntax.

 */

function _webform_validation_update_range_syntax($range) {

  // No longer use "0" as indicator for no validation. This should be an empty string.

  if ($range === "0") {

    return "";

  }

  // Replace "0-VAL" with "|VAL" as indicator for less than or equal to.

  if (preg_match('/^0 ?-/', $range)) {

    $range_arr = explode('-', $range);

    $range_end = $range_arr[1];

    return "|" . trim($range_end);

  }

  // Replace "-" as separator between range values in favor of "|".

  $range = str_replace("-", "|", $range);

  return $range;

}

/**

 * Add column to track negated rules.

 * Remove explicit length limit on data field.

 * Remove regex escaping of blacklist data.

 */

function webform_validation_update_7101() {

  db_add_field('webform_validation_rule', 'negate', array(

    'type' => 'int',

    'size' => 'tiny',

    'unsigned' => TRUE,

    'description' => 'Validate the inverse of the rule',

    'not null' => TRUE,

    'default' => 0,

  ));

  db_change_field('webform_validation_rule', 'data', 'data', array(

    'type' => 'text',

    'description' => 'Additional rule data',

    'not null' => FALSE,

  ));

  $replace = array('.', '\\', '+', '*', '?', '[', '^', ']', '$', '(', ')', '{', '}', '=', '!', '<', '>', '|', ':', '-', '/');

  $search = array();

  foreach ($replace as $value) {

    $search[] = '\\' . $value;

  }

  $result = db_query("SELECT DISTINCT data FROM {webform_validation_rule} WHERE validator = 'blacklist'");

  foreach ($result as $row) {

    $data_new = str_replace($search, $replace, $row->data);

    if ($row->data !== $data_new) {

      db_update('webform_validation_rule')

        ->fields(array(

          'data' => $data_new,

        ))

        ->condition('data', $row->data, '=')

        ->execute();

    }

  }

}

/**

 * Rename oneoftwo and oneofseveral to someofseveral and default data to 1.

 */

function webform_validation_update_7104() {

  db_update('webform_validation_rule')

    ->fields(array(

      'validator' => 'someofseveral',

      'data' => 1,

    ))

    ->condition('validator', array('oneoftwo', 'oneofseveral'), 'IN')

    ->execute();

}

/**

 * Add a weight field to webform_validation rules, so they can be sorted.

 */

function webform_validation_update_7105() {

  $spec = array(

    'description' => 'Weight of the rule order.',

    'type' => 'int',

    'not null' => TRUE,

    'unsigned' => FALSE,

    'default' => 0,

  );

  db_add_field('webform_validation_rule', 'weight', $spec);

}

/**

 * Alter error_message field to allow longer than 255 chars error messages.

 */

function webform_validation_update_7106() {

  db_change_field('webform_validation_rule', 'error_message', 'error_message', array(

    'type' => 'text',

    'description' => 'Rule error message',

    'not null' => FALSE,

  ));

}