Make AJAX requests on activity page POST not GET

See parent commit for the reason we’re doing this.

Currently our AJAX requests only work as `GET` requests. So this commit
does a bit of work to make them work as `POST` requests. This is
optional behaviour, and will only happen when the element in the page
that should be updated with AJAX has the `data-form` attribute set. It
will take the form that has the corresponding `id`, serialise it, and
use that data as the body of the post request. If not form is specified
it will not do the serialisation, and submit as a `GET` request as
before.

app/assets/javascripts/updateContent.js

@@ -19,10 +19,14 @@
 
   var clearQueue = queue => (queue.length = 0);
 
-  var poll = function(renderer, resource, queue, interval) {
+  var poll = function(renderer, resource, queue, interval, form) {
 
     if (queue.push(renderer) === 1) $.ajax(
-      resource
+      resource,
+      {
+        'method': form ? 'post' : 'get',
+        'data': form ? $('#' + form).serialize() : {}
+      }
     ).done(
       response => flushQueue(queue, response)
     ).fail(
@@ -41,7 +45,8 @@
       getRenderer($(component)),
       $(component).data('resource'),
       getQueue($(component).data('resource')),
-      ($(component).data('interval-seconds') || 1.5) * 1000
+      ($(component).data('interval-seconds') || 1.5) * 1000,
+      $(component).data('form')
     );
 
   };

app/main/views/jobs.py

@@ -205,7 +205,7 @@ def view_notifications(service_id, message_type):
     )
 
 
-@main.route('/services/<service_id>/notifications/<message_type>.json')
+@main.route('/services/<service_id>/notifications/<message_type>.json', methods=['GET', 'POST'])
 @user_has_permissions('view_activity', admin_override=True)
 def get_notifications_as_json(service_id, message_type):
     return jsonify(get_notifications(

app/templates/components/ajax-block.html

@@ -1,10 +1,11 @@
-{% macro ajax_block(partials, url, key, interval=2, finished=False) %}
+{% macro ajax_block(partials, url, key, interval=2, finished=False, form='') %}
   {% if not finished %}
     <div
       data-module="update-content"
       data-resource="{{ url }}"
       data-key="{{ key }}"
       data-interval-seconds="{{ interval }}"
+      data-form="{{ form }}"
       aria-live="polite"
     >
   {% endif %}

app/templates/views/notifications.html

@@ -24,9 +24,9 @@
     method="post"
     action="{{ url_for('.view_notifications', service_id=current_service.id, message_type=message_type) }}"
     class="grid-row"
+    id="search-form"
   >
     <div class="column-three-quarters">
-      <input type="hidden" name="status" value="{{ status }}">
       {{ textbox(
         search_form.to,
         width='1-1',
@@ -41,8 +41,9 @@
 
   {{ ajax_block(
     partials,
-    url_for('.get_notifications_as_json', service_id=current_service.id, message_type=message_type, status=status, page=page, to=to),
-    'notifications'
+    url_for('.get_notifications_as_json', service_id=current_service.id, message_type=message_type, status=status, page=page),
+    'notifications',
+    form='search-form'
   ) }}
 
 {% endblock %}

tests/app/main/views/test_activity.py

@@ -110,8 +110,7 @@ def test_can_show_notifications(
         assert query_dict['status'] == [status_argument]
     if expected_page_argument:
         assert query_dict['page'] == [str(expected_page_argument)]
-    if to_argument:
-        assert query_dict['to'] == [to_argument]
+    assert 'to' not in query_dict
 
     mock_get_notifications.assert_called_with(
         limit_days=7,
@@ -135,7 +134,6 @@ def test_can_show_notifications(
 @pytest.mark.parametrize((
     'initial_query_arguments,'
     'form_post_data,'
-    'expected_status_field_value,'
     'expected_search_box_contents'
 ), [
     (
@@ -143,7 +141,6 @@ def test_can_show_notifications(
             'message_type': 'sms',
         },
         {},
-        'sending,delivered,failed',
         '',
     ),
     (
@@ -153,7 +150,6 @@ def test_can_show_notifications(
         {
             'to': '+33(0)5-12-34-56-78',
         },
-        'sending,delivered,failed',
         '+33(0)5-12-34-56-78',
     ),
     (
@@ -165,7 +161,6 @@ def test_can_show_notifications(
         {
             'to': 'test@example.com',
         },
-        'failed',
         'test@example.com',
     ),
 ])
@@ -175,7 +170,6 @@ def test_search_recipient_form(
     mock_get_detailed_service,
     initial_query_arguments,
     form_post_data,
-    expected_status_field_value,
     expected_search_box_contents,
 ):
     response = logged_in_client.post(
@@ -199,7 +193,6 @@ def test_search_recipient_form(
     query_dict = parse_qs(url.query)
     assert query_dict == {}
 
-    assert page.find("input", {'name': 'status'})['value'] == expected_status_field_value
     assert page.find("input", {'name': 'to'})['value'] == expected_search_box_contents