Add package custom fields

ckanext/odsh/templates/package/snippets/package_metadata_fields.html

@@ -15,4 +15,10 @@
   {{ form.input(field, label=_('Is replaced by'), placeholder=_('https://'), value=value, error=error,
   classes=['control-full']) }}
 
+  {% block package_metadata_fields_custom %}
+    {% block custom_fields %}
+      {% snippet 'snippets/custom_form_fields.html', extras=data.extras, errors=errors, limit=3 %}
+    {% endblock %}
+  {% endblock %}
+  
 {% endblock %}
\ No newline at end of file

ckanext/odsh/templates/snippets/custom_form_fields.html

+{#
+Adds a block of custom form fields.
+
+extras - The fields to add.
+errors - A dict of errors for the fields.
+limit  - The total number of fields that should be output.
+Example:
+
+  {% snippet 'snippets/custom_form_fields.html', extras=data.extras, errors=errors, limit=3 %}
+
+#}
+{% import "macros/form.html" as form %}
+
+<div data-module="custom-fields">
+  {% set custom_extras = ['licenseAttributionByText', 'temporal_start', 'temporal_end', 'issued', 'spatial_uri', 'groups'] %}
+  {% for extra in extras %}
+    {% if extra.key not in custom_extras %}
+      {% set prefix = 'extras__%d__' % (loop.index0 + (custom_extras|count)) %}
+      {{ form.custom(
+        names=(prefix ~ 'key', prefix ~ 'value', prefix ~ 'deleted'),
+        id='field-extras-%d' % loop.index0,
+        label=_('Custom Field'),
+        values=(extra.key, extra.value, extra.deleted),
+        error=errors[prefix ~ 'key'] or errors[prefix ~ 'value']
+      ) }}
+    {% endif %}
+  {% endfor %}
+
+  {# Add a max of 3 empty columns #}
+  {% set total_extras = data.extras|count %}
+  {% if total_extras <= (custom_extras|count) %}{% set total_extras = (custom_extras|count) %}{% endif %}
+  {% set empty_extras = (limit or 3) - total_extras %}
+  {% if empty_extras <= 0 %}{% set empty_extras = 1 %}{% endif %}
+
+  {% for extra in range(total_extras, total_extras + empty_extras) %}
+    {% set index = loop.index0 + total_extras %}
+    {% set prefix = 'extras__%d__' % index %}
+    {{ form.custom(
+      names=(prefix ~ 'key', prefix ~ 'value', prefix ~ 'deleted'),
+      id='field-extras-%d' % index,
+      label=_('Custom Field'),
+      values=(extra.key, extra.value, extra.deleted),
+      error=errors[prefix ~ 'key'] or errors[prefix ~ 'value']
+    ) }}
+  {% endfor %}
+</div>