If images / content are bounded by field collection module, you can try approach below to index to solr
enjoy
//Index product images
$field_collection_items = field_get_items(‘node’, $node, ‘field_image_set’);
$field_collection_item_ids = array();
$i = 0;
foreach ($field_collection_items as $field_collection_item){
$field_collection_item_ids[$i] = $field_collection_item['value'];
$i++;
}
$field_collection_item_fields = entity_load(‘field_collection_item’, $field_collection_item_ids);
$image_fields = array();
$i = 0;
foreach ($field_collection_item_fields as $field_collection_item_field){
$image_fields[$i] = field_get_items(‘field_collection_item’, $field_collection_item_field, ‘field_image’);
$i++;
}
$i = 0;
foreach ($image_fields as $image_field){
foreach ($image_field as $image)
$path = file_create_url($image['uri']);
$document->setMultiValue(‘sm_field_image_’.$i++, $path); //Set multiple field_image values
}
