Add bulk add functionality for user and CID groups to exam collections

generic/templates/generic/examcollection_detail.html

@@ -86,9 +86,13 @@
         {% endif %}
 
         <br/>
-        <div id="add-user">
-        <button hx-get="{% url 'generic:exam_collection_add_author' object.pk %}" hx-target="#add-user" hx-swap="innerHTML">Add author to all exams</button>
-        </div>
+    <div id="bulk-add-groups">
+    <button class="btn-sm" hx-get="{% url 'generic:exam_collection_bulk_add_groups' object.pk %}" hx-target="#bulk-add-groups" hx-swap="innerHTML">Add groups to exams</button>
+    </div>
+
+    <div id="add-user">
+    <button hx-get="{% url 'generic:exam_collection_add_author' object.pk %}" hx-target="#add-user" hx-swap="innerHTML">Add author to all exams</button>
+    </div>
 
     {% include 'exam_overview_js.html' %}
 

generic/templates/generic/partials/examcollection_bulk_add_groups_form.html

@@ -0,0 +1,19 @@
+<form hx-post="{% url 'generic:exam_collection_bulk_add_groups' collection.pk %}" hx-target="#bulk-add-groups" hx-swap="innerHTML" class="bulk-add-groups-form">
+    {% csrf_token %}
+    <div>
+        {{ form.cid_user_groups.label_tag }}<br/>
+        {{ form.cid_user_groups }}
+    </div>
+    <div>
+        {{ form.user_user_groups.label_tag }}<br/>
+        {{ form.user_user_groups }}
+    </div>
+    <div>
+        {{ form.exam_types.label_tag }}<br/>
+        {{ form.exam_types }}
+    </div>
+    <div class="mt-2">
+        <button type="submit" class="btn btn-primary btn-sm">Add groups</button>
+        <button type="button" class="btn btn-secondary btn-sm" hx-get="{% url 'generic:examcollection_detail' collection.pk %}" hx-target="#bulk-add-groups" hx-swap="innerHTML">Cancel</button>
+    </div>
+</form>

generic/templates/generic/partials/examcollection_bulk_add_groups_result.html

@@ -0,0 +1,11 @@
+<div class="bulk-add-result">
+    {% if error %}
+        <div class="alert alert-danger">Error: {{ error }}</div>
+    {% else %}
+        <p>Added user groups to {{ total_user }} exams.</p>
+        <p>Added CID groups to {{ total_cid }} exams.</p>
+    {% endif %}
+    <div class="mt-2">
+        <button class="btn btn-sm btn-outline-primary" hx-get="{% url 'generic:exam_collection_bulk_add_groups' collection.pk %}" hx-target="#bulk-add-groups" hx-swap="innerHTML">Add more</button>
+    </div>
+</div>