Field collection with condition node tpl

Question

I've been researching this for the last few days and I cant find a clear explanation of this issue im facing. I'm receiving an error when a node has an empty collection with no values.

The collection field: field_window_shade
The fields within the collection: field_question, field_answer

Here is my code that is only looping thru the collection array within my node.tpl:

            $wrapper  = entity_metadata_wrapper('node', $node);
            $formtype = field_get_items('node', $node, 'field_window_shade');

            foreach($formtype as $itemid) { 
                 $item = field_collection_field_get_entity($itemid);
                 print $item->field_question['und'][0]['value'];
                 print $item->field_answer['und'][0]['value'];
            }

I am after something like this:

            $wrapper  = entity_metadata_wrapper('node', $node);
            $formtype = field_get_items('node', $node, 'field_window_shade');

            if (isset($wrapper->field_question)) {
              foreach($formtype as $itemid) { 
                 $item = field_collection_field_get_entity($itemid);
                 print $item->field_question['und'][0]['value'];
                 print $item->field_answer['und'][0]['value'];
              }
            }

I've seen this question asked about 5 different times with 10 different solutions and I can't seem to reach a solution here.

Thank you !

Answer 1

Did you try field_collection_item in entity_metadata_wrapper? I mean this

$wrapper  = entity_metadata_wrapper('node', $node);
$raw_collection = $wrapper->field_window_shade->value();
$fwrapper = entity_metadata_wrapper('field_collection_item', $raw_collection);

Now use $fwrapper to extract the items (This code is not completely accurate a few modification may be needed)

Visit Extracting a specific data part of a Field Collection Item for more details. Also Programmatically create and update field collection with Entity API and Understanding Field Collection Values can be helpful.

Answer 2

I've solved this by using the correct field format (filter) type.

here: $item->field_answer->value->raw(); error is now gone

     <?php
            $wrapper         = entity_metadata_wrapper('node', $node);
            $raw_collection = $wrapper->field_window_shade->value();

            foreach ($wrapper->field_window_shade as $item): 
                print "<div class='faq collection-item'><h3 class='toggle'><p>" . $item->field_question->value() . "</p></h3>";
                print "<div class='faq-content'><div class='faq-content-inner'><p>" . $item->field_answer->value->raw() . "</p></div></div></div>";
            endforeach; 
        ?>