Response:
{% if invitation.accepted %}
{% include "bi/check-circle-fill.html" %}
{% elif invitation.cancelled %}
{% include "bi/circle-fill.html" %}
{% elif invitation.accepted == False %}
{% include "bi/x-circle-fill.html" %}
{% elif not invitation.accepted %}
{% include "bi/question-circle-fill.html" %}
{% endif %}
{% if invitation.accepted %}
Fulfilled:
{% if not invitation.fulfilled or invitation.cancelled %}
{% include "bi/circle-fill.html" %}
{% elif invitation.fulfilled %}
{% include "bi/check-circle-fill.html" %}
{% endif %}
{% elif invitation.accepted == False %}
{{ invitation.get_refusal_reason_display }}
{% endif %}