create migration for populating terms

Change-Id: I13eddbe900070b8f50ff5c8f6f016daa27ec87d1
Reviewed-on: https://gerrit.instructure.com/128447
Tested-by: Jenkins
QA-Review: Steven Burnett <sburnett@instructure.com>
Reviewed-by: Simon Williams <simon@instructure.com>
Reviewed-by: Steven Burnett <sburnett@instructure.com>
Product-Review: James Williams  <jamesw@instructure.com>
Reviewed-by: James Williams  <jamesw@instructure.com>

app/models/account.rb

@@ -1649,6 +1649,7 @@ class Account < ActiveRecord::Base
     work = -> do
       default_enrollment_term
       enable_canvas_authentication
+      TermsOfService.ensure_terms_for_account(self) if self.root_account?
     end
     return work.call if Rails.env.test?
     self.class.connection.after_transaction_commit(&work)

app/models/terms_of_service.rb

@@ -21,4 +21,27 @@ class TermsOfService < ActiveRecord::Base
   belongs_to :account
   belongs_to :terms_of_service_content
   validates :terms_type, :passive, presence: true
+
+  validate :validate_account_is_root
+
+  cattr_accessor :skip_automatic_terms_creation
+
+  def validate_account_is_root
+    if self.account_id_changed? && !self.account.root_account?
+      self.errors.add(:account, "must be root account")
+    end
+  end
+
+  def self.ensure_terms_for_account(account)
+    unless !self.table_exists? || self.skip_automatic_terms_creation || account.terms_of_service
+      account.shard.activate do
+        account.create_terms_of_service!(term_options_for_account(account))
+      end
+    end
+  end
+
+  DEFAULT_OPTIONS = {:terms_type => "default_url"}.freeze
+  def self.term_options_for_account(account)
+    DEFAULT_OPTIONS
+  end
 end

db/migrate/20171004154613_populate_terms_of_service.rb

@@ -0,0 +1,31 @@
+#
+# Copyright (C) 2017 - present Instructure, Inc.
+#
+# This file is part of Canvas.
+#
+# Canvas is free software: you can redistribute it and/or modify it under
+# the terms of the GNU Affero General Public License as published by the Free
+# Software Foundation, version 3 of the License.
+#
+# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Affero General Public License along
+# with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#
+class PopulateTermsOfService < ActiveRecord::Migration[4.2]
+  tag :postdeploy
+  disable_ddl_transaction!
+
+  def up
+    Account.root_accounts.each do |ra|
+      TermsOfService.ensure_terms_for_account(ra)
+    end
+  end
+
+  def down
+  end
+end

spec/models/terms_of_service_spec.rb

@@ -14,7 +14,7 @@
 # You should have received a copy of the GNU Affero General Public License along
 # with this program. If not, see <http://www.gnu.org/licenses/>.
 #
-require_relative '../spec_helper'
+require_relative '../sharding_spec_helper'
 describe TermsOfService do
   before :once do
     @ac = account_model
@@ -43,4 +43,17 @@ describe TermsOfService do
                                                account: ac2)
     expect(tos.passive).to eq true
   end
+
+  describe "#ensure_terms_for_account" do
+    before :each do
+      TermsOfService.skip_automatic_terms_creation = false
+    end
+
+    it "should create a default terms_of_service on root account creation" do
+      ac2 = account_model
+      expect(ac2.terms_of_service.terms_type).to eq TermsOfService.term_options_for_account(ac2)[:terms_type]
+      sub = ac2.sub_accounts.create!
+      expect(sub.terms_of_service).to be nil
+    end
+  end
 end

spec/spec_helper.rb

@@ -349,6 +349,7 @@ RSpec.configure do |config|
     RequestStore.clear!
     MultiCache.reset
     Course.enroll_user_call_count = 0
+    TermsOfService.skip_automatic_terms_creation = true
     $spec_api_tokens = {}
   end