custom_fields: allow to search vocab

* closes CERNDocumentServer/cds-rdm#180

invenio_app_rdm/records_ui/templates/semantic-ui/invenio_app_rdm/records/macros/detail.html

@@ -209,9 +209,14 @@ <h2>{{ add_description.type.title_l10n }} <span
   {% endfor %}
 {% endmacro %}
 
-{% macro list_vocabulary_values(values) %}
+{% macro list_vocabulary_values(field, values) %}
   {% if values.title_l10n is defined %}
-    {{ values.title_l10n }}
+    {% set search_url = field | custom_vocab_fields_search(values.title_l10n, "title") %}
+    {% if search_url %}
+      <a href="{{ search_url }}">{{ values.title_l10n | safe }}</a>
+    {% else %}
+      {{ values.title_l10n }}
+    {% endif %}
   {% else %}
     {% for value in values %}
       {{ value.title_l10n }}{{ ", " if not loop.last }}
@@ -240,7 +245,7 @@ <h2>{{ add_description.type.title_l10n }} <span
       {% else %}
         <dt class="ui tiny header">
           {{ field_cfg.props.label }}
-          {% set namespace_url = field_cfg.field | namespace_url %}
+          {% set namespace_url = field_cfg.display_url if field_cfg.display_url is defined else field_cfg.field | namespace_url %}
           {% if namespace_url %}
             <a href="{{ namespace_url }}" aria-label="{{ namespace_url }}">
               <i class="icon external" aria-hidden="true"></i>
@@ -265,7 +270,7 @@ <h2>{{ add_description.type.title_l10n }} <span
             {% endif %}
           </dd>
         {% elif field_cfg.is_vocabulary %}
-          <dd>{{ list_vocabulary_values(field_value) }}</dd>
+          <dd>{{ list_vocabulary_values(field_cfg.field, field_value) }}</dd>
         {% elif field_value is iterable and field_value|length > 0 and field_value[0] is string %}
           <dd>{{ list_string_values(field_cfg.field, field_value) }}</dd>
         {% elif field_value is iterable and field_value|length > 0 and field_value[0] is number %}

invenio_app_rdm/records_ui/views/__init__.py

@@ -30,6 +30,7 @@
     can_list_files,
     compact_number,
     custom_fields_search,
+    custom_vocab_fields_search,
     get_scheme_label,
     has_images,
     has_previewable_files,
@@ -184,6 +185,7 @@ def create_blueprint(app):
     blueprint.add_app_template_filter(truncate_number)
     blueprint.add_app_template_filter(namespace_url)
     blueprint.add_app_template_filter(custom_fields_search)
+    blueprint.add_app_template_filter(custom_vocab_fields_search)
     blueprint.add_app_template_filter(transform_record)
 
     # Register context processor

invenio_app_rdm/records_ui/views/filters.py

@@ -15,6 +15,7 @@
 from babel.numbers import format_compact_decimal, format_decimal
 from flask import current_app, url_for
 from invenio_base.utils import obj_or_import_string
+from invenio_i18n import get_locale
 from invenio_previewer.views import is_previewable
 from invenio_records_files.api import FileObject
 from invenio_records_permissions.policies import get_record_permission_policy
@@ -182,6 +183,25 @@ def custom_fields_search(field, field_value):
     )
 
 
+def custom_vocab_fields_search(field, field_value, sub_field):
+    """Get custom field search url for vocabulary values."""
+    namespace_array = field.split(":")
+    namespace = namespace_array[0]
+    namespaces = current_app.config.get("RDM_NAMESPACES")
+
+    if not namespaces.get(namespace):
+        return None
+
+    locale = get_locale()
+    if not locale:
+        locale = current_app.config.get("BABEL_DEFAULT_LOCALE", "en")
+
+    namespace_string = "\:".join(namespace_array) + f".{sub_field}.{locale}"
+    return url_for(
+        "invenio_search_ui.search", q=f"custom_fields.{namespace_string}:{field_value}"
+    )
+
+
 def transform_record(record, serializer, module=None, throws=True, **kwargs):
     """Transform a record using a serializer."""
     try: