{% macro signature_link(name, val) %}
  <a href="{{ url('signature:signature_report') }}{{ change_query_string(
    _no_base=True,
    signature=val,
    page=None,
    _columns=None,
    _facets=None
    ) }}"
    title="View signature report"
  >
    {{ val }}
  </a>
{% endmacro %}

{% macro refine_link(name, val, display_text=None, use_is_query=True) %}
  {% set filter_val = '=%s' % val if use_is_query else val %}
  {% set display_text = val if display_text == None else display_text %}
  <a href="{{ change_query_string(_no_base=True, **{name: filter_val}) }}" class="term" data-field="{{ name }}" data-content="{{ val }}" title="Refine search">
    {{ display_text }}
  </a>
{% endmacro %}