TableBuilderHelper::Column: Add `link_to` argument

This parameter will be used as the `href` to link the column value
somewhere.

We give it a lambda because this makes it easier to call any method on
the row object.

This means the accessor needs to take the object as an argument, like in
the `#value` method, because we don't have a better way to handle that
(it can't be done at initialisation time because at that point we don't
have row objects, we have a collection).

1 files changed, 16 insertions, 0 deletions

diff --git a/spec/helpers/table_builder_helper/column_spec.rb b/spec/helpers/table_builder_helper/column_spec.rb
index 0f27703b2..0c5c89e8a 100644
--- a/spec/helpers/table_builder_helper/column_spec.rb
+++ b/spec/helpers/table_builder_helper/column_spec.rb
@@ -20,4 +20,20 @@ describe TableBuilderHelper::Column do
       ).to eq('Numéro de téléphone')
     end
   end
+
+  describe "#link_to" do
+    it "calls the block passed in and returns the result" do
+      train = double('train', kind: 'TGV')
+
+      expect(
+        TableBuilderHelper::Column.new(
+          name: 'unused',
+          attribute: nil,
+          link_to: lambda do |train|
+            train.kind
+          end
+        ).link_to(train)
+      ).to eq('TGV')
+    end
+  end
 end