adds geozone_select_options helper method

app/helpers/geozones_helper.rb

@@ -4,4 +4,8 @@ module GeozonesHelper
     geozonable.geozone ? geozonable.geozone.name : t("geozones.none")
   end
 
+  def geozone_select_options
+    Geozone.all.order(name: :asc).collect { |g| [ g.name, g.id ] }
+  end
+
 end

app/views/spending_proposals/_form.html.erb

@@ -19,7 +19,7 @@
 
     <div class="small-12 column">
       <%= f.label :geozone_id,  t("spending_proposals.form.geozone") %>
-      <%= f.select :geozone_id, Geozone.all.collect { |g| [ g.name, g.id ] }, {include_blank: t("geozones.none"), label: false} %>
+      <%= f.select :geozone_id, geozone_select_options, {include_blank: t("geozones.none"), label: false} %>
     </div>
 
     <div class="small-12 column">

spec/helpers/geozones_helper_spec.rb

@@ -17,5 +17,19 @@ describe GeozonesHelper do
     end
   end
 
+  describe "#geozone_select_options" do
+    it "returns array of ids and names ordered by name" do
+      g1 = create(:geozone, name: "AAA")
+      g3 = create(:geozone, name: "CCC")
+      g2 = create(:geozone, name: "BBB")
+
+      select_options = geozone_select_options
+
+      expect(select_options.size).to eq 3
+      expect(select_options.first).to eq [g1.name, g1.id]
+      expect(select_options[1]).to eq [g2.name, g2.id]
+      expect(select_options.last).to eq [g3.name, g3.id]
+    end
+  end
 
 end