keep filter data

gawa/blog/templates/blog/browse.html

@@ -19,7 +19,7 @@
             <div class="col col-xxl mb-5" id="headline">
                 <a class="text-reset link-offset-2 link-underline link-underline-opacity-0"
                    href="{% url "blog:browse" %}"
-                   style="display: inline-block;">
+                   style="display: inline-block">
                     <h1 class="display-1 w-0">Browse</h1>
                 </a>
                 {# center headline on small screens #}
@@ -40,24 +40,36 @@
                                    aria-label="Search"
                                    placeholder="{% trans "Search" %}"
                                    required=""
+                                   {% if filters.search %}value="{{ filters.search }}"{% endif %}
                                    id="id_search">
                         </div>
                         <div class="py-2">
                             <select class="form-select py-2"
                                     aria-label="Large select example"
                                     name="category">
-                                <option value="" selected>{% trans "select category" %}</option>
+                                <option value="">{% trans "select category" %}</option>
-                                {% for category in categories %}<option value="{{ category.slug }}">{{ category.name }}</option>{% endfor %}
+                                {% for category in categories %}
+                                    <option {% if filters.category.slug == category.slug %}selected{% endif %}
+                                            value="{{ category.slug }}">{{ category.name }}</option>
+                                {% endfor %}
                             </select>
                         </div>
                         <div class="py-2">
                             <input class="tagify" name="keywords" placeholder="{% trans "Keywords" %}">
                         </div>
-                        <button class="btn bg-primary fw-bold py-2" type="submit">{% trans "Filter" %}</button>
+                        <div class="py-2">
+                            <button id="filter-button"
+                                    class="btn bg-primary fw-bold py-2 float-end"
+                                    type="submit">{% trans "Filter" %}</button>
+                            <script>
+                                if (screen.width < 480) {
+                                    col = document.getElementById("filter-button")
+                                    col.classList.add("w-100")
+                                };
+                            </script>
+                        </div>
                         <script>
-                    // The DOM element you wish to replace with Tagify
                             var input = document.querySelector('input[class=tagify]');
-                    // initialize Tagify on the above input node reference
                             new Tagify(input)
                         </script>
                     </form>

gawa/blog/views.py

@@ -80,10 +80,34 @@ class Browse(ListView):
                 # Q(body_de__icontains=search) |
                 Q(slug__icontains=search)
             )
+
+        if "keywords" in self.request.GET and len(
+                self.request.GET["keywords"].strip()) > 0:
+            pass
         return objects
 
     def get_context_data(self, **kwargs):
         context = super().get_context_data(**kwargs)
         context['featured_posts'] = BlogPost.objects.filter(featured=True)
         context['categories'] = Category.objects.all()
+
+        context["filters"] = {}
+        if "category" in self.request.GET and len(
+                self.request.GET["category"].strip()) > 0:
+            category = self.request.GET["category"]
+            try:
+                category = Category.objects.get(slug=category)
+                context["filters"]["category"] = category
+            except Category.DoesNotExist:
+                context["filters"]["category"] = None
+
+        if "search" in self.request.GET and len(
+                self.request.GET["search"].strip()) > 0:
+            search = self.request.GET["search"]
+            context["filters"]["search"] = search
+
+        if "keywords" in self.request.GET and len(
+                self.request.GET["keywords"].strip()) > 0:
+            keywords = self.request.GET["keywords"]
+            context["filters"]["keywords"] = keywords
         return context