function flot_fields_views_plugin_style::validate in Flot 7

Validate that the plugin is correct and can be saved.

Return value

array An array of error strings to tell the user what is wrong with this plugin.

Overrides views_plugin_style::validate

File

flot_views/views/flot_fields_views_plugin_style.inc, line 1024

Style plugin for views

Class

flot_fields_views_plugin_style

@file Style plugin for views

Code

function validate() {
  $errors = parent::validate();
  $fields = $this->display->handler->handlers['field'];
  $xfields = array();
  foreach ($fields as $field) {
    if ($field->options['flot']['axis'] == 'x') {
      $xfields[] = $field->definition['group'] . ': ' . $field->definition['title'];
    }
  }
  if (count($xfields) == 0) {
    $errors[] = t('You need to specify a field for the x-axis');
  }
  elseif (count($xfields) > 1) {
    $errors[] = t('You have specified more than one field for the x-axis (!fields)', array(
      '!fields' => implode(', ', $xfields),
    ));
  }
  return $errors;
}