create stoppedsponsorship

app/models/stopped_sponsorship.rb

@@ -0,0 +1,2 @@
+class StoppedSponsorship < ApplicationRecord
+end

db/migrate/20200724094030_create_stopped_sponsorships.rb

@@ -0,0 +1,11 @@
+class CreateStoppedSponsorships < ActiveRecord::Migration[5.2]
+  def change
+    create_table :stopped_sponsorships do |t|
+      t.integer :amount
+      t.integer :sponsor_id
+      t.integer :developer_id
+
+      t.timestamps
+    end
+  end
+end

spec/models/stopped_sponsorship_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe StoppedSponsorship, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end