Handle search errors

todosrht/blueprints/tracker.py

@@ -77,8 +77,12 @@ def return_tracker(tracker, access, **kwargs):
         .options(subqueryload(Ticket.submitter))
         .order_by(Ticket.updated.desc()))
 
-    terms = request.args.get("search")
-    tickets = apply_search(tickets, terms, tracker, current_user)
+    try:
+        terms = request.args.get("search")
+        tickets = apply_search(tickets, terms, tracker, current_user)
+    except ValueError as e:
+        kwargs["search_error"] = str(e)
+
     tickets, pagination = paginate_query(tickets, results_per_page=25)
 
     # Find which tickets were seen by the user since last update

todosrht/templates/tracker.html

@@ -154,11 +154,14 @@
           name="search"
           type="text"
           placeholder="Search tickets...     status:closed     label:label     order:updated     submitter:me"
-          class="form-control"
+          class="form-control{% if search_error %} is-invalid{% endif %}"
           {% if not another %}
           autofocus
           {% endif %}
           value="{{ search if search else "" }}" />
+        {% if search_error %}
+          <div class="invalid-feedback">{{ search_error }}</div>
+        {% endif %}
       </form>
       {% if len(tickets) %}
       <div class="ticket-list">