Entry Form: Populate checkbox list from another entry and save options in entry

Question

I am trying to load some options in to a checkbox list from another entry so that a user and save select them form a checkbox list but I am unable to save the Entry Form with their selection.

I have created the registeredOccurances checkbox field in the Section, it has no options set as I want to set them on the entry form.

<input type="hidden" name="fields[registeredOccurances]" value="">    
    {# Load rows from SuperTable in to checkbox list #}
    {% for block in entry[dateFieldHandle] %}
        <label><input type="checkbox" value="{{ loop.index }}" name="fields[registeredOccurances][]"> {{ block.date }}</label>
    {% endfor %}

    {% if entry is defined %}
        <p>{{ dump(entry.getErrors()) }}</p>
    {% endif %}

The dump is outputting the below, can someone help to interpret it?

array(1) { ["registeredOccurances"]=> array(1) { [0]=> string(33) "Registered Occurances is invalid." } }

Thanks for your help :)

Answer 1

Could this be a reserved word? Generally I access fields using entry.registeredOccurances is there a reason you are using fields[registeredOccurances] and entry[dateFieldHandle]?