Create Total model.

app/models/total.rb

@@ -0,0 +1,3 @@
+class Total < ApplicationRecord
+  belongs_to :user
+end

db/migrate/20200821110618_create_totals.rb

@@ -0,0 +1,12 @@
+class CreateTotals < ActiveRecord::Migration[6.0]
+  def change
+    create_table :totals do |t|
+      t.references :user, null: false, foreign_key: true
+      t.date :date, null: false
+      t.integer :duration, default: 0
+      t.decimal :distance, default: 0
+
+      t.timestamps
+    end
+  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_08_17_111403) do
+ActiveRecord::Schema.define(version: 2020_08_21_110618) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -63,6 +63,16 @@
     t.index ["user_id"], name: "index_activities_on_user_id"
   end
 
+  create_table "totals", force: :cascade do |t|
+    t.bigint "user_id", null: false
+    t.date "date", null: false
+    t.integer "duration", default: 0
+    t.decimal "distance", default: "0.0"
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["user_id"], name: "index_totals_on_user_id"
+  end
+
   create_table "users", force: :cascade do |t|
     t.string "email", default: "", null: false
     t.string "encrypted_password", default: "", null: false
@@ -83,4 +93,5 @@
 
   add_foreign_key "active_storage_attachments", "active_storage_blobs", column: "blob_id"
   add_foreign_key "activities", "users"
+  add_foreign_key "totals", "users"
 end

test/fixtures/totals.yml

@@ -0,0 +1,13 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+one:
+  user: one
+  date: 2020-08-21
+  duration: 1
+  distance: 9.99
+
+two:
+  user: two
+  date: 2020-08-21
+  duration: 1
+  distance: 9.99

test/models/total_test.rb

@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class TotalTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end