Activity: Add days attribute.

References #52.

db/migrate/20200908064831_add_days_to_activity.rb

@@ -0,0 +1,5 @@
+class AddDaysToActivity < ActiveRecord::Migration[5.2]
+  def change
+    add_column :activities, :days, :string
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2020_09_04_071039) do
+ActiveRecord::Schema.define(version: 2020_09_08_064831) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -53,6 +53,7 @@
     t.time "start_time"
     t.date "end_date"
     t.time "end_time"
+    t.string "days"
     t.index ["author_id"], name: "index_activities_on_author_id"
   end
 

spec/models/activity_spec.rb

@@ -9,6 +9,7 @@
     specify { expect(activity).to respond_to(:end_date) }
     specify { expect(activity).to respond_to(:start_time) }
     specify { expect(activity).to respond_to(:end_time) }
+    specify { expect(activity).to respond_to(:days) }
     specify { expect(activity).to respond_to(:description) }
     specify { expect(activity).to respond_to(:location) }
     specify { expect(activity).to respond_to(:contact_name) }