[bug 949000] Switch product list to dropdown

The occurrences report now uses a dropdown list of all available
products.

Author: willkg

fjord/analytics/templates/analytics/analytics_occurrences_comparison.html

@@ -20,7 +20,11 @@ <h3>Product</h3>
 
             <div class="container">
               <label for="id_product">Product</label>
-              <input id="id_product" type="text" name="product" value="{{ form.product.value() }}" />
+              <select id="id_product" name="product">
+                {% for prod in products %}
+                  <option value="{{ prod }}"{% if form.product.value() == prod %} selected{% endif %}>{{ prod }}</option>
+                {% endfor %}
+              </select>
               {{ form.product.errors }}
             </div>
           </li>

fjord/analytics/views.py

@@ -470,6 +470,7 @@ def analytics_dashboard(request, template):
 
 @check_new_user
 @analyzer_required
+@es_required_or_50x(error_template='analytics/es_down.html')
 def analytics_occurrences_comparison(request):
     template = 'analytics/analytics_occurrences_comparison.html'
 
@@ -607,9 +608,15 @@ def analytics_occurrences_comparison(request):
         permalink = ''
         form = OccurrencesComparisonForm()
 
+    # FIXME - We have responses that have no product set. This ignores
+    # those. That's probably the right thing to do for the Occurrences Report
+    # but maybe not.
+    products = [prod for prod in ResponseMappingType.get_products() if prod]
+
     return render(request, template, {
         'permalink': permalink,
         'form': form,
+        'products': products,
         'first_facet_bi': first_facet_bi,
         'first_params': first_params,
         'first_facet_total': first_facet_total,

fjord/feedback/models.py

@@ -1,5 +1,6 @@
 from datetime import datetime
 
+from django.core.cache import cache
 from django.db import models
 
 from elasticutils.contrib.django import Indexable
@@ -184,6 +185,24 @@ def truncated_description(self):
         """Shorten feedback for dashboard view."""
         return smart_truncate(self.description, length=500)
 
+    @classmethod
+    def get_products(cls):
+        """Returns a list of all products
+
+        This is cached.
+
+        """
+        key = 'feedback:response_products1'
+        products = cache.get(key)
+        if products is not None:
+            return products
+
+        facet = cls.search().facet('product').facet_counts()
+        products = [prod['term'] for prod in facet['product']]
+
+        cache.add(key, products)
+        return products
+
 
 class ResponseEmail(ModelBase):
     """Holds email addresses related to Responses."""