add webhook urls record

app/models/webhook_url.rb

@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+# == Schema Information
+#
+# Table name: webhook_urls
+#
+#  id         :bigint           not null, primary key
+#  events     :text             not null
+#  sha1       :string           not null
+#  url        :text             not null
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#  account_id :bigint           not null
+#
+# Indexes
+#
+#  index_webhook_urls_on_account_id  (account_id)
+#  index_webhook_urls_on_sha1        (sha1)
+#
+# Foreign Keys
+#
+#  fk_rails_...  (account_id => accounts.id)
+#
+class WebhookUrl < ApplicationRecord
+  belongs_to :account
+
+  attribute :events, :string, default: -> { [] }
+
+  serialize :events, coder: JSON
+
+  before_validation :set_sha1
+
+  encrypts :url
+
+  def set_sha1
+    self.sha1 = Digest::SHA1.hexdigest(url)
+  end
+end