Enhance case search functionality: exclude cases already in the collection from search results to prevent duplication

atlas/templates/atlas/add_case_to_collection.html

@@ -1,14 +1,9 @@
-<span id="add-case-form">
-    This form allows you to add an existing case to the collection. You may find it easier to do this from the individual case pages or the <a href="{% url 'atlas:case_view' %}">case overview view</a> which allows you to add multiple cases at once.
-<form hx-post="{% url 'atlas:add_case_to_collection' collection.id %}" hx-swap="outerHTML">
-    {% csrf_token %}
-    <label for="case">Select Case to add:</label>
-    <select name="case" id="case">
-        {% for case in cases %}
-            <option value="{{ case.id }}">{{ case.title }}</option>
-        {% endfor %}
-    </select>
-    <button type="submit">Add</button>
-    <button _="on click remove #add-case-form">Cancel</button>
-</form>
-</span
+<div id="add-case-form" class="p-2 border rounded">
+    <p class="mb-2">Add an existing case to this collection. You can also use the case overview view to add multiple cases at once: <a href="{% url 'atlas:case_view' %}">case overview</a>.</p>
+
+    {% include 'atlas/partials/case_search_widget.html' %}
+
+    <div class="mt-2">
+        <button class="btn btn-sm btn-secondary" _="on click remove #add-case-form">Close</button>
+    </div>
+</div>

atlas/templates/atlas/collection_detail.html

@@ -4,139 +4,154 @@
 
 {% partialdef casedetails-management-links %}
 
-    (<a href="{% url 'atlas:collection_case_displaysetup' casedetail.collection.pk casedetail.case.pk %}"><i class="bi bi-display" title="Setup default display"></i></a>
+<div class="btn-toolbar" role="toolbar" aria-label="Case management links">
+    {% include 'atlas/partials/casedetails_management_links.html' %}
+</div>
 
-    {% if casedetail.default_viewerstate %}
-        <i class="bi bi-check text-success" title="This case has a default viewerstate defined"></i>
-    {% endif %}
-    )
-
-    (<a href="{% url 'atlas:collection_case_details' casedetail.collection.pk casedetail.case.pk %}"><i class="bi bi-info-square" title="Case details"></i></a>)
-
-    {% if collection.collection_type == "QUE" %}
-        (<a href='{% url "atlas:collection_case_questions" casedetail.collection.pk casedetail.case.pk %}'>
-            {% if casedetail.question_schema %}
-                <i class="bi bi-question-square text-success" title="This case has questions defined."></i>
-            {% else %}
-                <i class="bi bi-question-square text-danger" title="This case has no questions defined."></i>
-            {% endif %}
-        </a>
-        )
-    {% endif %}
-
-    {% if casedetail.case.previous_case %}
-        (<a href='{% url "atlas:collection_case_priors" casedetail.collection.pk casedetail.case.pk %}'>
-            <i class="bi bi-link-45deg" title="Manage priors"></i></a>)
-    {% endif %}
 {% endpartialdef %}
 
 {% block content %}
-    <h2>{{collection.name}}</h2>
 
-    {% include 'exam_notes.html' %}
+<div class="container">
+    <div class="card mb-4">
+        <div class="card-body">
+            <div class="row">
+                <div class="col-md-8">
+                    <h2 class="card-title mb-2">{{ collection.name }}</h2>
 
-    <div>
-        Exam mode: {{collection.exam_mode}} (open access: {{collection.exam_open_access}})<br />
-        {% include "generic/partials/exams/exam_status.html#publish-results" %}
-        {% include "generic/partials/exams/exam_status.html#exam-active" %}
-        Collection Type: {{collection.get_collection_type_display}}<br />
-        Self review: {{collection.self_review}}<br />
-        Open access: {{collection.open_access}}<br />
-        {% if collection.prerequisites.exists %}
-            Prerequisite collections:
-            <ul>
-                {% for prereq in collection.prerequisites.all %}
-                    <li>
-                        <a href="{% url 'atlas:collection_detail' prereq.pk %}">{{ prereq.name }}</a>
-                        &nbsp;
-                    </li>
-                {% endfor %}
-            </ul>
+                    {% include 'exam_notes.html' %}
 
-        <p>
-            <button
-                title="Sync users from all prerequisite collections into this collection"
-                hx-post="{% url 'atlas:collection_sync_prerequisite_users' collection.pk %}"
-                hx-swap="outerHTML"
-                class="btn btn-sm btn-secondary"
-            >Sync prerequisite users</button>
-        </p>
-        {% endif %}
+                    <p class="mb-1">
+                        <span class="badge bg-info text-dark me-2">{{ collection.exam_mode }}</span>
+                        <small class="text-muted">(open access: {{ collection.exam_open_access }})</small>
+                    </p>
+
+                    <p class="mb-2">
+                        {% include "generic/partials/exams/exam_status.html#publish-results" %}
+                        {% include "generic/partials/exams/exam_status.html#exam-active" %}
+                    </p>
+
+                    <p class="mb-1">
+                        <span class="badge bg-secondary me-2">{{ collection.get_collection_type_display }}</span>
+                        <span class="badge bg-light text-dark me-2">Self review: {{ collection.self_review }}</span>
+                        {% if collection.open_access %}
+                            <span class="badge bg-success">Open</span>
+                        {% else %}
+                            <span class="badge bg-warning text-dark">Restricted</span>
+                        {% endif %}
+                    </p>
+
+                    {% if collection.prerequisites.exists %}
+                        <div class="mt-3 mb-2">
+                            <strong>Prerequisites</strong>
+                            <ul class="mb-0">
+                                {% for prereq in collection.prerequisites.all %}
+                                    <li><a href="{% url 'atlas:collection_detail' prereq.pk %}">{{ prereq.name }}</a></li>
+                                {% endfor %}
+                            </ul>
+                        </div>
+                    {% endif %}
+                </div>
+
+                <div class="col-md-4 d-flex flex-column align-items-md-end mt-3 mt-md-0">
+                    <div class="mb-2 w-100 text-md-end">
+                        {% if collection.collection_type == "VIV" %}
+                            <a href="{% url 'atlas:collection_viva' collection.pk %}" class="btn btn-primary mb-2">Start Viva</a>
+                        {% else %}
+                            <div class="d-inline-block">
+                                <a class="btn btn-outline-secondary btn-sm" href="{{ collection.get_take_url }}" id="take-url-link">Open</a>
+                                <button
+                                    _="on click
+                                         writeText(#take-url-link's href) on navigator.clipboard
+                                         put 'copied url!' into me
+                                         wait 1s
+                                         put 'copy link' into me"
+                                    class="btn btn-sm btn-outline-secondary ms-1">Copy link</button>
+                            </div>
+                        {% endif %}
+                    </div>
+
+                    {% if collection.prerequisites.exists %}
+                        <div class="w-100 text-md-end">
+                            <button
+                                title="Sync users from all prerequisite collections into this collection"
+                                hx-post="{% url 'atlas:collection_sync_prerequisite_users' collection.pk %}"
+                                hx-swap="outerHTML"
+                                class="btn btn-sm btn-secondary"
+                            >Sync prerequisite users</button>
+                        </div>
+                    {% endif %}
+                </div>
+            </div>
+        </div>
     </div>
 
+    <div class="row">
+        <div class="col-12">
+            <h3 class="mb-3">Cases</h3>
 
-    {% if collection.collection_type == "VIV" %}
-        <p><a href='{% url "atlas:collection_viva" collection.pk %}'><button class="btn btn-primary">Start Viva</button></a>
-    {% else %}
-        <p>This collection will be available to view/take <a href='{{collection.get_take_url}}' id="take-url">here</a>{% if not collection.active %} (when active){% endif %} <button
-            _="on click
-               writeText(#take-url's href) on navigator.clipboard
-               put 'copied url!' into me
-               wait 1s
-               put 'copy url' into me"
-            class="btn btn-sm">copy link</button>
-            <p>Review collection <a href='{% url "atlas:collection_viva" collection.pk %}'>here</a>
-    {% endif %}
-
-
-
-
-    <h3>Cases</h3>
-    <ol id="full-question-list" class="sortable">
-        {% for casedetail in casesdetails %}
-            <li data-question_pk={{casedetail.case.pk}}>
-
-
-                <a href="{% url 'atlas:collection_case_view' pk=collection.pk case_number=forloop.counter0 %}">Case {{forloop.counter}}</a>
-                :
-                {% if casedetail.case.series.count == 0 %}
-                    &nbsp;<i class="bi bi-exclamation-circle text-warning" title="No series attached to this case"></i>&nbsp;
-                {% endif %}
-                {{casedetail.case.title}}
-
-                {% partial casedetails-management-links %}
-
-            </li>
-
-        {% endfor %}
-    </ol>
-
-
-
+            <ol id="full-question-list" class="sortable list-group list-group-numbered">
+                {% for casedetail in casesdetails %}
+                    {% include 'atlas/partials/case_list_item.html' %}
+                {% endfor %}
+            </ol>
+        </div>
+    </div>
 
     {% if can_edit %}
-        <p><button id='button-edit-order' title='click and drag questions to change order' data-posturl="{% url 'atlas:exam_json_edit' pk=collection.pk %}">Edit case order / Remove cases</button></p>
-        <p><button id='button-add-case'
-                   title='click to add a case to this collection'
-                   hx-get="{% url 'atlas:add_case_to_collection' collection.pk %}" hx-swap="innerHTML" hx-target="#case-list">
-            Add case
-        </button>
-            <div id='case-list'></div>
-        </p>
+        <div class="row mt-4">
+            <div class="col-12 d-flex gap-2">
+                <button id='button-edit-order'
+                                title='click and drag questions to change order'
+                                data-posturl="{% url 'atlas:exam_json_edit' pk=collection.pk %}"
+                                class="btn btn-sm btn-outline-secondary">
+                        Edit case order / Remove cases
+                </button>
 
-        <details>
-            <summary>Answer management</summary>
+                <button id='button-add-case'
+                             title='click to add a case to this collection'
+                             hx-get="{% url 'atlas:add_case_to_collection' collection.pk %}" hx-swap="innerHTML" hx-target="#case-list"
+                             class="btn btn-sm btn-secondary">
+                        Add case
+                </button>
 
-            <div class="alert alert-danger">
-                <p>Manage answers for this collection. </p>
-
-                Please note these are permanant and cannot be undone.
+                <div id='case-list'></div>
             </div>
+        </div>
 
-            <button title="This will clear all user answers and attempts"
-                    hx-post="{% url 'atlas:collection_reset_answers' collection.pk %}"
-                    hx-swap="outerHTML"
-                    hx-confirm="Are you sure you want to reset all answers? This action cannot be undone."
-            >Reset all answers</button>
+        <div class="row mt-3">
+            <div class="col-12">
+                <details>
+                    <summary>Answer management</summary>
 
-            <button title="This will specific user answers and attempts"
-                    hx-post="{% url 'atlas:collection_reset_answers_user_list' collection.pk %}"
-                    hx-swap="innerHTML"
-                    hx-target="#user-list"
-            >Reset user answers</button>
-            <div id="user-list"></div>
+                    <div class="alert alert-danger mt-3">
+                        <p class="mb-1">Manage answers for this collection.</p>
+                        <small class="text-muted">Please note these are permanent and cannot be undone.</small>
+                    </div>
 
-        </details>
+                    <div class="d-flex gap-2">
+                        <button title="This will clear all user answers and attempts"
+                                        hx-post="{% url 'atlas:collection_reset_answers' collection.pk %}"
+                                        hx-swap="outerHTML"
+                                        hx-confirm="Are you sure you want to reset all answers? This action cannot be undone."
+                                        class="btn btn-danger btn-sm"
+                        >Reset all answers</button>
+
+                        <button title="This will specific user answers and attempts"
+                                        hx-post="{% url 'atlas:collection_reset_answers_user_list' collection.pk %}"
+                                        hx-swap="innerHTML"
+                                        hx-target="#user-list"
+                                        class="btn btn-warning btn-sm">
+                                Reset user answers</button>
+                    </div>
+
+                    <div id="user-list" class="mt-3"></div>
+                </details>
+            </div>
+        </div>
     {% endif %}
+
     {% include 'exam_overview_js.html' %}
+</div>
+
 {% endblock %}

atlas/templates/atlas/collection_headers.html

@@ -16,7 +16,6 @@
                 <li class="nav-item"><a class="nav-link" href="{% url 'atlas:collection_mark_overview' collection.pk %}">Mark</a></li>
                 <li class="nav-item"><a class="nav-link" href="{% url 'atlas:collection_scores_cid' collection.pk %}">Scores</a></li>
                 <li class="nav-item"><a class="nav-link" href="{% url 'atlas:exam_cids' collection.pk %}">Candidates</a></li>
-                <li class="nav-item"><a class="nav-link" href="{% url 'atlas:atlas_create_exam' pk=collection.pk %}">Add New Case</a></li>
             </ul>
 
             <ul class="navbar-nav ms-auto">
@@ -32,6 +31,7 @@
                         {% if request.user.is_superuser %}
                             <li><hr class="dropdown-divider"></li>
                             <li><a class="dropdown-item" href="{% url 'admin:atlas_casecollection_change' collection.id %}">Admin Edit</a></li>
+                            <li><a class="dropdown-item" href="{% url 'atlas:atlas_create_exam' pk=collection.pk %}">Add New Case</a></li>
                         {% endif %}
                     </ul>
                 </li>

atlas/templates/atlas/partials/case_list_item.html

@@ -0,0 +1,31 @@
+<li class="list-group-item d-flex gap-3 align-items-start" data-question_pk="{{ casedetail.case.pk }}">
+
+    <div class="flex-fill">
+        <div class="d-flex justify-content-between align-items-start">
+            <div>
+                <a class="h6 mb-0 text-decoration-none case-link"
+                   href="{% url 'atlas:collection_case_view' pk=collection.pk case_number=forloop.counter0 %}"
+                   data-case-base-href="{% url 'atlas:collection_case_view' pk=collection.pk case_number=0 %}">
+                    {{ casedetail.case.title }}
+                </a>
+                <div class="small text-muted"><span class="case-number">Case {{ forloop.counter }}</span> &mdash; <span class="text-truncate">{{ casedetail.case.description|default_if_none:""|truncatechars:80 }}</span></div>
+            </div>
+        </div>
+
+        <div class="mt-2 small text-muted">
+            {% if casedetail.case.series.count == 0 %}
+                <span class="text-warning">No series attached</span>
+            {% else %}
+                {{ casedetail.case.series.count }} series
+            {% endif %}
+            {% if casedetail.question_schema %}
+                &nbsp;•&nbsp;<span class="text-success">Questions defined</span>
+            {% endif %}
+        </div>
+    </div>
+
+    <div class="d-flex align-items-center ms-3">
+        {% include 'atlas/partials/casedetails_management_links.html' %}
+    </div>
+
+</li>

atlas/templates/atlas/partials/case_search_results.html

@@ -0,0 +1,45 @@
+{# Search results #}
+{% if q %}
+  {% if cases and cases.exists %}
+    <div class="list-group mb-2">
+  {% for case in cases %}
+  <div class="list-group-item d-flex justify-content-between align-items-center" data-case-pk="{{ case.pk }}">
+          <div class="flex-fill me-3">
+            <div class="fw-semibold">{{ case.title }}</div>
+            <div class="small text-muted">{% if case.description %}{{ case.description|truncatechars:100 }}{% endif %}</div>
+          </div>
+
+          <form class="m-0" hx-post="{% url 'atlas:add_case_to_collection' collection.pk %}" hx-target="#full-question-list" hx-swap="beforeend">
+            {% csrf_token %}
+            <input type="hidden" name="case" value="{{ case.pk }}">
+            <button type="submit" class="btn btn-sm btn-primary">Add</button>
+          </form>
+        </div>
+      {% endfor %}
+    </div>
+  {% else %}
+    <div class="text-muted small mb-2">No cases found.</div>
+  {% endif %}
+{% endif %}
+
+{# Recent cases quick-add (rendered below search results) #}
+{% if recent_cases and recent_cases|length > 0 %}
+  <div>
+    <div class="small text-muted mb-1">Recently created</div>
+    <div class="list-group">
+      {% for case in recent_cases %}
+        <div class="list-group-item d-flex justify-content-between align-items-center" data-case-pk="{{ case.pk }}">
+          <div class="flex-fill me-3">
+            <div class="fw-semibold">{{ case.title }}</div>
+            <div class="small text-muted">{% if case.description %}{{ case.description|truncatechars:100 }}{% endif %}</div>
+          </div>
+          <form class="m-0" hx-post="{% url 'atlas:add_case_to_collection' collection.pk %}" hx-target="#full-question-list" hx-swap="beforeend">
+            {% csrf_token %}
+            <input type="hidden" name="case" value="{{ case.pk }}">
+            <button type="submit" class="btn btn-sm btn-outline-primary">Add</button>
+          </form>
+        </div>
+      {% endfor %}
+    </div>
+  </div>
+{% endif %}

atlas/templates/atlas/partials/case_search_widget.html

@@ -0,0 +1,46 @@
+<div class="case-search-widget">
+  <label for="case-search-input" class="form-label">Search cases</label>
+  <input id="case-search-input" name="q" class="form-control" type="search"
+    placeholder="Type to search cases..."
+    hx-get="{% url 'atlas:case_search' %}"
+    hx-include="#case-search-input"
+    hx-vals='{"collection": "{{ collection.pk }}"}'
+    hx-target="#case-search-results"
+    hx-trigger="keyup changed delay:400ms"
+    autocomplete="off">
+
+  <div id="case-search-results" class="mt-2">
+    {# Render initial results (search + recent) on initial GET; HTMX searches will replace this div with partial results #}
+    {% include 'atlas/partials/case_search_results.html' with cases=cases recent_cases=recent_cases collection=collection %}
+  </div>
+</div>
+
+<script>
+  (function(){
+    // Robust fallback: ensure repeated searches always work by using htmx.ajax when available.
+    try {
+      var input = document.getElementById('case-search-input');
+      if (!input) return;
+      var timer = null;
+      input.addEventListener('input', function(){
+        if (timer) clearTimeout(timer);
+        timer = setTimeout(function(){
+          try {
+            var q = encodeURIComponent(input.value || '');
+            var url = "{% url 'atlas:case_search' %}?q=" + q + "&collection={{ collection.pk }}";
+            if (window.htmx && typeof window.htmx.ajax === 'function') {
+              window.htmx.ajax('GET', url, { target: '#case-search-results', swap: 'innerHTML' });
+            } else {
+              // fallback to fetch
+              fetch(url, { credentials: 'same-origin' }).then(function(r){ return r.text(); }).then(function(html){
+                var el = document.getElementById('case-search-results');
+                if (el) el.innerHTML = html;
+              }).catch(function(e){ console.error('case search fetch error', e); });
+            }
+          } catch(e) { console.error(e); }
+        }, 400);
+      });
+    } catch(e) { console.error('case search widget init error', e); }
+  })();
+</script>
+

atlas/templates/atlas/partials/casedetails_management_links.html

@@ -0,0 +1,42 @@
+    <div class="btn-group btn-group-sm me-2" role="group" aria-label="management-actions">
+        <a class="btn btn-outline-secondary" href="{% url 'atlas:collection_case_displaysetup' casedetail.collection.pk casedetail.case.pk %}" title="Setup default display">
+            <i class="bi bi-display"></i>
+        </a>
+
+        <a class="btn btn-outline-secondary" href="{% url 'atlas:collection_case_details' casedetail.collection.pk casedetail.case.pk %}" title="Case details">
+            <i class="bi bi-info-square"></i>
+        </a>
+
+        {% if collection.collection_type == "QUE" %}
+            <a class="btn btn-outline-secondary" href='{% url "atlas:collection_case_questions" casedetail.collection.pk casedetail.case.pk %}' title="Manage questions">
+                {% if casedetail.question_schema %}
+                    <i class="bi bi-question-square text-success"></i>
+                {% else %}
+                    <i class="bi bi-question-square text-danger"></i>
+                {% endif %}
+            </a>
+        {% endif %}
+
+        {% if casedetail.case.previous_case %}
+            <a class="btn btn-outline-secondary" href='{% url "atlas:collection_case_priors" casedetail.collection.pk casedetail.case.pk %}' title="Manage priors">
+                <i class="bi bi-link-45deg"></i>
+            </a>
+        {% endif %}
+    </div>
+
+    <div class="btn-group btn-group-sm" role="group" aria-label="status-indicator">
+        {% if casedetail.default_viewerstate %}
+            <button type="button" class="btn btn-sm btn-outline-success" aria-disabled="true" title="This case has a default viewerstate defined">
+                <i class="bi bi-check"></i>
+            </button>
+        {% endif %}
+    </div>
+
+        {# Remove button (HTMX) - only shown when the surrounding template has `can_edit` true #}
+        {% if can_edit %}
+            <form class="d-inline ms-2 m-0" hx-post="{% url 'atlas:remove_case_from_collection' casedetail.case.pk casedetail.collection.pk %}" hx-target="closest li" hx-swap="outerHTML" hx-confirm="Remove this case from the collection?">
+                <button type="submit" class="btn btn-outline-danger btn-sm case-remove" title="Remove this case from the collection">
+                    <i class="bi bi-trash"></i>
+                </button>
+            </form>
+        {% endif %}

atlas/urls.py

@@ -34,6 +34,7 @@ urlpatterns = [
     path("author/", views.author_list, name="author_list"),
     path("case/", views.CaseView.as_view(), name="case_view"),
     path("collection/<int:collection_id>/add_case", views.add_case_to_collection, name="add_case_to_collection"),
+    path("collection/case_search", views.case_search, name="case_search"),
     path("collection/", views.CollectionView.as_view(), name="collection_view"),
     path("collection/user", views.user_collections, name="user_collections"),
     path("uploads", views.user_uploads, name="user_uploads"),

atlas/views.py

@@ -1151,16 +1151,100 @@ def add_case_to_collection(request, collection_id):
 
         print(case)
         collection.add_case(case)
-        return HttpResponse(f"Case added to collection {collection.name} (refresh to see)")
+        # Render the new case list item and return it so HTMX can append it
+        try:
+            casedetail = collection.casedetail_set.get(case=case)
+        except Exception:
+            return HttpResponse("Case added, but could not render item.")
+
+        total = collection.casedetail_set.count()
+        can_edit = request.user.is_superuser or collection.author.filter(pk=request.user.pk).exists()
+        rendered = render_to_string(
+            "atlas/partials/case_list_item.html",
+            {
+                "casedetail": casedetail,
+                "collection": collection,
+                "forloop": {"counter": total, "counter0": max(0, total - 1)},
+                "can_edit": can_edit,
+            },
+            request=request,
+        )
+        # Also instruct the client to remove this case from any visible search/recent lists
+        remove_script = (
+            '<script>'
+            '(function(){'
+            'try {'
+            "var pk = '%s';" % case.pk +
+            "document.querySelectorAll('#case-search-results [data-case-pk=\"' + pk + '\"]').forEach(function(el){ el.remove(); });" +
+            "document.querySelectorAll('#case-search-results input[name=\"case\"][value=\"' + pk + '\"]').forEach(function(inp){ var li = inp.closest('.list-group-item'); if (li) li.remove(); });" +
+            '} catch(e) { console.error("remove added case from search error", e); }'
+            '})();'
+            '</script>'
+        )
+
+        return HttpResponse(rendered + remove_script)
 
     # if request.method == "POST":
 
-    cases = get_cases_available_to_user(request.user)
+    # don't show search results on initial load; the search partial will render only when a query exists
+    cases = Case.objects.none()
+
+    # Also compute recent cases for initial display (authored by current user and not in collection)
+    recent_qs = get_cases_available_to_user(request.user).filter(author=request.user)
+    recent_qs = recent_qs.exclude(pk__in=collection.cases.values_list("pk", flat=True))
+    recent_cases = recent_qs.order_by("-created_date")[:5]
 
     return render(
         request,
         "atlas/add_case_to_collection.html",
-        {"cases": cases, "collection": collection},
+        {"cases": cases, "collection": collection, "recent_cases": recent_cases, "q": ""},
+    )
+
+
+@login_required
+def case_search(request):
+    # HTMX endpoint for searching cases available to the user
+    if not request.htmx:
+        return Http404
+
+    q = request.GET.get("q", "").strip()
+    collection_id = request.GET.get("collection")
+    collection = None
+    if collection_id:
+        try:
+            collection = CaseCollection.objects.get(pk=collection_id)
+        except CaseCollection.DoesNotExist:
+            collection = None
+
+    qs = get_cases_available_to_user(request.user, collection=collection)
+    if q:
+        qs = qs.filter(title__icontains=q)
+
+    # Recent cases: last 5 created that are available to the user and not already in the collection
+    # Restrict recent cases to those authored by the current user and not already in the collection
+    recent_qs = get_cases_available_to_user(request.user).filter(author=request.user)
+    if collection is not None:
+        recent_qs = recent_qs.exclude(pk__in=collection.cases.values_list("pk", flat=True))
+    recent_cases = recent_qs.order_by("-created_date")[:5]
+
+    # Exclude recent cases from the main search results to avoid duplication
+    recent_pks = [c.pk for c in recent_cases]
+
+    # Build the base queryset for results, apply excludes first (before slicing)
+    cases_qs = qs.exclude(pk__in=recent_pks)
+
+    # Also exclude any cases that are already present in the collection
+    if collection is not None:
+        existing_pks = list(collection.cases.values_list("pk", flat=True))
+        if existing_pks:
+            cases_qs = cases_qs.exclude(pk__in=existing_pks)
+
+    cases = cases_qs.order_by("title")[:30]
+
+    return render(
+        request,
+        "atlas/partials/case_search_results.html",
+        {"cases": cases, "collection": collection, "recent_cases": recent_cases, "q": q},
     )
 
 
@@ -4215,6 +4299,11 @@ def remove_case_from_collection(request, case_pk, collection_pk):
     # Remove the case from the collection
     collection.cases.remove(case)
     
+    # If this was an HTMX request, return an empty response so the caller
+    # can swap out (remove) the surrounding element (e.g., the <li>).
+    if request.htmx:
+        return HttpResponse("")
+
     return HttpResponse(f"Case removed from collection: {collection.name}")
 
 

templates/exam_overview_js.html

@@ -143,7 +143,8 @@
                 })
         })
         $("#button-edit-order").click(function (evt) {
-            $(this).remove();
+        // hide the edit button while in edit mode so we can restore it after saving
+        $(this).addClass('d-none').prop('disabled', true);
             sortable('.sortable');
             $("#full-question-list").addClass('sorting');
 
@@ -155,17 +156,38 @@
             for (var i = ul.children.length; i >= 0; i--) {
                 ul.appendChild(ul.children[Math.random() * i | 0]);
             }
+            renumber();
             }))
 
 
+            // helper to renumber visible cases and update links
+            function renumber() {
+                $("#full-question-list li").each((i, e) => {
+                    // update Case N label
+                    $(e).find('.case-number').text('Case ' + (i + 1));
+
+                    // update link href based on data-case-base-href (replace trailing 0)
+                    const a = $(e).find('.case-link');
+                    if (a.length) {
+                        const base = a.attr('data-case-base-href');
+                        if (base) {
+                            // replace trailing '/0' with new index
+                            const newHref = base.replace(/\/0$/, '/' + i);
+                            a.attr('href', newHref);
+                        }
+                    }
+                });
+            }
+
             $("#full-question-list li").each((n, el) => {
-    // Add up/down arrows at the start of each <li>
+                // Add up/down arrows at the start of each <li>
                 const upBtn = $("<button class='move-up btn btn-sm' title='Move up'>&#8593;</button>").click(function(e){
                     e.preventDefault();
                     const li = $(this).closest("li");
                     const prev = li.prev();
                     if (prev.length) {
                         prev.before(li);
+                        renumber();
                     }
                 });
                 const downBtn = $("<button class='move-down btn btn-sm' title='Move down'>&#8595;</button>").click(function(e){
@@ -174,20 +196,27 @@
                     const next = li.next();
                     if (next.length) {
                         next.after(li);
+                        renumber();
                     }
                 });
                 $(el).prepend(downBtn).prepend(upBtn);
 
-    // Existing delete button logic
-                $(el).append($(
-                    "<span class='exam-question-delete flex-col'><button title='Remove this question from the exam/collection'>Remove</button></span>"
-                ).click(() => {
-                    el.remove();
-                }));
+                // Prefer server-side HTMX remove button when present; otherwise keep a fallback
+                if ($(el).find('.case-remove').length === 0) {
+                    // fallback: append an inline client-side remove button (for contexts without server-side remove)
+                    $(el).append($(
+                        "<span class='exam-question-delete flex-col'><button title='Remove this question from the exam/collection'>Remove</button></span>"
+                    ).click(() => {
+                        el.remove();
+                        renumber();
+                    }));
+                } else {
+                    // If HTMX remove exists it will handle the server call and swap; renumber after swap via htmx:afterSwap
+                }
             });
 
             $("#full-question-list").after($(
-                "<button title='click and drag questions to change order'>Save exam order</button>"
+                "<button id='save-order-button' class='btn btn-primary btn-sm' title='click and drag questions to change order'>Save exam order</button>"
             ).click(() => {
                 new_order = [];
                 $("#full-question-list li").each((n, el) => {
@@ -208,6 +237,21 @@
 
                         if (data.status == "success") {
                             toastr.info('Exam order changed.')
+                            renumber();
+
+                            // cleanup ordering controls and restore edit button
+                            $('#random-order-button').remove();
+                            $('#save-order-button').remove();
+                            $('#cancel-order-button').remove();
+                            // remove per-item move controls
+                            $('#full-question-list .move-up, #full-question-list .move-down').remove();
+                            // remove fallback delete buttons if desired (keep server-side removes intact)
+                            $('#full-question-list .exam-question-delete').remove();
+                            // remove visual sorting state
+                            $('#full-question-list').removeClass('sorting');
+
+                            // restore the edit button so the user can re-enter edit mode
+                            $('#button-edit-order').removeClass('d-none').prop('disabled', false);
                         }
                     })
                     .always(function () {
@@ -220,6 +264,20 @@
             ).click(() => {
                 location.reload();
             }));
+            // Keep list numbering in sync after HTMX swaps that affect the case list
+            document.body.addEventListener('htmx:afterSwap', function(evt){
+                try {
+                    const target = evt.detail && evt.detail.target ? evt.detail.target : null;
+                    if (!target) return;
+                    if (target.id === 'full-question-list' || (target.closest && target.closest('#full-question-list'))) {
+                        setTimeout(function(){
+                            if (typeof renumber === 'function') renumber();
+                        }, 10);
+                    }
+                } catch(e) {
+                    console.error('htmx afterSwap renumber error', e);
+                }
+            });
         });