netbox-community-netbox/netbox/utilities/templates/builtins/customfield_value.html

{% load helpers %}
{% if customfield.type == 'integer' and value is not None %}
  {{ value }}
{% elif customfield.type == 'longtext' and value %}
  {{ value|markdown }}
{% elif customfield.type == 'boolean' and value == True %}
  {% checkmark value true="True" %}
{% elif customfield.type == 'boolean' and value == False %}
  {% checkmark value false="False" %}
{% elif customfield.type == 'date' and value %}
  {{ value|annotated_date }}
{% elif customfield.type == 'datetime' and value %}
  {{ value|annotated_date }}
{% elif customfield.type == 'url' and value %}
  <a href="{{ value }}">{{ value|truncatechars:70 }}</a>
{% elif customfield.type == 'json' and value %}
  <pre>{{ value|json }}</pre>
{% elif customfield.type == 'multiselect' and value %}
  {{ value|join:", " }}
{% elif customfield.type == 'object' and value %}
  {{ value|linkify }}
{% elif customfield.type == 'multiobject' and value %}
  {% for object in value %}
    {{ object|linkify }}{% if not forloop.last %}<br />{% endif %}
  {% endfor %}
{% elif value %}
  {{ value }}
{% elif customfield.required %}
  <span class="text-warning"><i class="mdi mdi-alert"></i> Not defined</span>
{% else %}
  {{ ''|placeholder }}
{% endif %}