protected function ExifWidgetBase::retrieveImageFieldDefaultValue in Exif 8

Same name and namespace in other branches

1. 8.2 src/Plugin/Field/FieldWidget/ExifWidgetBase.php \Drupal\exif\Plugin\Field\FieldWidget\ExifWidgetBase::retrieveImageFieldDefaultValue()

Calculate default value for settings form.

More precisely, it calculate default value for image_field setting of widget.

simple implementation: Look for the first image field found.

Parameters

array $widget: Widget we are checking.

array $image_fields: Image fields links to this widget.

Return value

string First image field found or NULL if none.

1 call to ExifWidgetBase::retrieveImageFieldDefaultValue()

ExifWidgetBase::settingsForm in src/Plugin/Field/FieldWidget/ExifWidgetBase.php

Returns a form to configure settings for the widget.

File

src/Plugin/Field/FieldWidget/ExifWidgetBase.php, line 164

Class

ExifWidgetBase

Base class for 'Exif Field widget' plugin implementations.

Namespace

Drupal\exif\Plugin\Field\FieldWidget

Code

protected function retrieveImageFieldDefaultValue(array $widget, array $image_fields) {
  if (array_key_exists('settings', $widget) && array_key_exists('image_field', $widget['settings'])) {
    $result = $widget['settings']['image_field'];
  }
  else {
    $result = NULL;
  }
  if (empty($result)) {

    // Look for the first image field found.
    $temp = array_keys($image_fields);
    if (!empty($temp) && is_array($temp)) {
      $result = $temp[0];
    }
  }
  return $result;
}