Add a “Back to search results” link

Store the search parameters in the flash when a search is made via the
select_authority_path page. Stores the parameters for both POST and
AJAX typeahead searches.

The presence of stored search params renders the link on the
PublicBodyController#show template.

“keep”s the search params in PublicBodyController#show so that if the
user clicks the browser’s back button the “Back to search results” link
can still be rendered on the next search result they click.

“keep”s all flash keys in ServicesController#other_country_message
as it’s called through AJAX and ends up sweeping the flash. [1]

[1] More details about this:
    http://mikenaberezny.com/2007/09/08/keep-the-flash-and-test-it-too/

1 files changed, 8 insertions, 0 deletions

diff --git a/spec/controllers/services_controller_spec.rb b/spec/controllers/services_controller_spec.rb
index 248c97ad4..621dbaaac 100644
--- a/spec/controllers/services_controller_spec.rb
+++ b/spec/controllers/services_controller_spec.rb
@@ -12,6 +12,14 @@ describe ServicesController, "when returning a message for people in other count
         @old_locale = FastGettext.locale()
     end
 
+    it 'keeps the flash' do
+        # Make two get requests to simulate the flash getting swept after the
+        # first response.
+        get :other_country_message, nil, nil, :some_flash_key => 'abc'
+        get :other_country_message
+        expect(flash[:some_flash_key]).to eq('abc')
+    end
+
     it "should show no alaveteli message when in the deployed country" do
         config = MySociety::Config.load_default()
         config['ISO_COUNTRY_CODE'] = "DE"