$info) {
$old_items[$delta]['file'] = isset($files[$info['fid']]) ? $files[$info['fid']] : NULL;
}
foreach ($new_items as $delta => $info) {
$new_items[$delta]['file'] = isset($files[$info['fid']]) ? $files[$info['fid']] : NULL;
}
}
/**
* Diff field callback for parsing image field comparative values.
*/
function image_field_diff_view($items, $context) {
$instance = $context['instance'];
$settings = $context['settings'];
$diff_items = array();
foreach ($items as $delta => $item) {
if (isset($item['file'])) {
$output = array();
// We populate as much as possible to allow the best flexability in any
// string overrides.
$t_args = array();
foreach ($item as $key => $value) {
if (is_scalar($value)) {
$t_args['!' . $key] = $value;
}
}
// Some states do not have the file properties in the item, so put these
// out of the main file object.
if (!empty($item['file'])) {
$file_values = (array) $item['file'];
foreach ($file_values as $key => $value) {
if (is_scalar($value) && !isset($t_args['!' . $key])) {
$t_args['!' . $key] = $value;
}
}
}
$output[] = t('Image: !filename', $t_args);
if ($settings['compare_alt_field'] && !empty($instance['settings']['alt_field'])) {
if (!empty($item['alt'])) {
$output[] = t('Alt: !alt', $t_args);
}
}
if ($settings['compare_title_field'] && !empty($instance['settings']['title_field'])) {
if (!empty($item['title'])) {
$output[] = t('Title: !title', $t_args);
}
}
if ($settings['show_id']) {
$output[] = t('File ID: !fid', $t_args);
}
$diff_items[$delta] = implode('; ', $output);
}
}
return $diff_items;
}
/**
* Provide default field comparison options.
*/
function image_field_diff_default_options($field_type) {
return array(
'show_id' => 0,
'compare_alt_field' => 0,
'compare_title_field' => 0,
);
}
/**
* Provide a form for setting the field comparison options.
*/
function image_field_diff_options_form($field_type, $settings) {
$options_form = array();
$options_form['show_id'] = array(
'#type' => 'checkbox',
'#title' => t('Show image ID'),
'#default_value' => $settings['show_id'],
);
$options_form['compare_alt_field'] = array(
'#type' => 'checkbox',
'#title' => t('Compare Alt field'),
'#default_value' => $settings['compare_alt_field'],
'#description' => t('This is only used if the "Enable Alt field" is checked in the instance settings.'),
);
$options_form['compare_title_field'] = array(
'#type' => 'checkbox',
'#title' => t('Compare Title field'),
'#default_value' => $settings['compare_title_field'],
'#description' => t('This is only used if the "Enable Title field" is checked in the instance settings.'),
);
return $options_form;
}