adds search and filter for poll questions

app/views/admin/poll/questions/_filter.html.erb

@@ -0,0 +1,8 @@
+<div class="small-12 medium-6">
+  <%= form_tag '', method: :get do %>
+    <%= select_tag "poll_id",
+                   poll_select_options(true),
+                   prompt: t("admin.booths.index.select_poll"),
+                   class: "js-location-changer" %>
+  <% end %>
+</div>

app/views/admin/poll/questions/_form.html.erb

@@ -7,6 +7,12 @@
   <div class="row">
 
     <div class="small-12 column">
+      <div class="small-12 medium-6">
+          <%= f.select :poll_id,
+                        options_for_select(Poll.pluck(:name, :id)),
+                        prompt: t("admin.booths.index.select_poll") %>
+      </div>
+
       <%= f.text_field :title, maxlength: Poll::Question.title_max_length %>
 
       <%= f.text_field :valid_answers %>

app/views/admin/poll/questions/_search.html.erb

@@ -0,0 +1,12 @@
+<%= form_tag(admin_questions_path, method: :get) do |f| %>
+  <div class="row">
+    <div class="small-12 medium-6 column">
+      <%= text_field_tag :search,
+                         @search,
+                         placeholder: t("admin.shared.spending_proposal_search.placeholder") %>
+    </div>
+    <div class="form-inline small-12 medium-3 column end">
+      <%= submit_tag t("admin.shared.spending_proposal_search.button"), class: "button" %>
+    </div>
+  </div>
+<% end %>

app/views/admin/poll/questions/index.html.erb

@@ -3,6 +3,9 @@
 <%= link_to t('admin.questions.index.create'), new_admin_question_path,
             class: "button success float-right" %>
 
+<%= render 'filter' %>
+<%= render 'search' %>
+
 <% if @questions.count == 0 %>
   <div class="callout primary">
     <%= t('admin.questions.index.no_questions') %>