Avoid more models in old migrations

Although these migrations run fine today, they could break in the future
if changes are made to the current model code.

db/migrate/005_tile_tracepoints.rb

@@ -1,6 +1,10 @@
 require "migrate"
 
 class TileTracepoints < ActiveRecord::Migration[4.2]
+  class Tracepoint < ActiveRecord::Base
+    self.table_name = "gps_points"
+  end
+
   def self.up
     add_column "gps_points", "tile", :bigint
     add_index "gps_points", ["tile"], :name => "points_tile_idx"

db/migrate/006_tile_nodes.rb

@@ -1,6 +1,14 @@
 require "migrate"
 
 class TileNodes < ActiveRecord::Migration[4.2]
+  class Node < ActiveRecord::Base
+    self.table_name = "current_nodes"
+  end
+
+  class OldNode < ActiveRecord::Base
+    self.table_name = "nodes"
+  end
+
   def self.upgrade_table(from_table, to_table, model)
     if ENV["USE_DB_FUNCTIONS"]
       execute <<-SQL

db/migrate/013_add_email_valid.rb

@@ -1,4 +1,7 @@
 class AddEmailValid < ActiveRecord::Migration[4.2]
+  class User < ActiveRecord::Base
+  end
+
   def self.up
     add_column "users", "email_valid", :boolean, :default => false, :null => false
     User.update_all("email_valid = (active != 0)") # email_valid is :boolean, but active is :integer. "email_valid = active" (see r11802 or earlier) will fail for stricter dbs than mysql

db/migrate/039_add_more_controls_to_gpx_files.rb

@@ -1,6 +1,10 @@
 require "migrate"
 
 class AddMoreControlsToGpxFiles < ActiveRecord::Migration[4.2]
+  class Trace < ActiveRecord::Base
+    self.table_name = "gpx_files"
+  end
+
   def self.up
     create_enumeration :gpx_visibility_enum, %w[private public trackable identifiable]
     add_column :gpx_files, :visibility, :gpx_visibility_enum, :default => "public", :null => false

db/migrate/046_alter_user_roles_and_blocks.rb

@@ -1,6 +1,9 @@
 require "migrate"
 
 class AlterUserRolesAndBlocks < ActiveRecord::Migration[4.2]
+  class UserRole < ActiveRecord::Base
+  end
+
   def self.up
     # the initial granter IDs can be "self" - there are none of these
     # in the current live DB, but there may be some in people's own local

db/migrate/051_add_status_to_user.rb

@@ -1,6 +1,9 @@
 require "migrate"
 
 class AddStatusToUser < ActiveRecord::Migration[4.2]
+  class User < ActiveRecord::Base
+  end
+
   def self.up
     create_enumeration :user_status_enum, %w[pending active confirmed suspended deleted]
 

db/migrate/20110322001319_add_terms_seen_to_user.rb

@@ -1,4 +1,7 @@
 class AddTermsSeenToUser < ActiveRecord::Migration[4.2]
+  class User < ActiveRecord::Base
+  end
+
   def self.up
     add_column :users, :terms_seen, :boolean, :null => false, :default => false
 

db/migrate/20120208122334_merge_acl_address_and_mask.rb

@@ -11,6 +11,9 @@ class IPAddr
 end
 
 class MergeAclAddressAndMask < ActiveRecord::Migration[4.2]
+  class Acl < ActiveRecord::Base
+  end
+
   def up
     Acl.find_each do |acl|
       address = IPAddr.new(acl.address)

db/migrate/20120808231205_add_counter_caches.rb

@@ -1,4 +1,11 @@
 class AddCounterCaches < ActiveRecord::Migration[4.2]
+  class Changeset < ActiveRecord::Base
+  end
+
+  class Trace < ActiveRecord::Base
+    self.table_name = "gpx_files"
+  end
+
   def self.up
     add_column :users, :changesets_count, :integer, :null => false, :default => 0
     add_column :users, :traces_count, :integer, :null => false, :default => 0

db/migrate/20121005195010_add_diary_entry_counter_caches.rb

@@ -1,4 +1,10 @@
 class AddDiaryEntryCounterCaches < ActiveRecord::Migration[4.2]
+  class DiaryEntry < ActiveRecord::Base
+  end
+
+  class User < ActiveRecord::Base
+  end
+
   def self.up
     add_column :users, :diary_entries_count, :integer, :null => false, :default => 0
 

db/migrate/20121012044047_add_image_use_gravatar_to_users.rb

@@ -1,4 +1,7 @@
 class AddImageUseGravatarToUsers < ActiveRecord::Migration[4.2]
+  class User < ActiveRecord::Base
+  end
+
   def self.up
     add_column :users, :image_use_gravatar, :boolean, :null => false, :default => false
 

db/migrate/20150111192335_subscribe_old_changesets.rb

@@ -1,4 +1,7 @@
 class SubscribeOldChangesets < ActiveRecord::Migration[4.2]
+  class Changeset < ActiveRecord::Base
+  end
+
   def up
     Changeset.find_each do |changeset|
       changeset.subscribers << changeset.user unless changeset.subscribers.exists?(changeset.user.id)

db/migrate/20150222101847_rename_openid_url.rb

@@ -1,4 +1,7 @@
 class RenameOpenidUrl < ActiveRecord::Migration[4.2]
+  class User < ActiveRecord::Base
+  end
+
   def change
     rename_column :users, :openid_url, :auth_uid
     add_column :users, :auth_provider, :string

db/migrate/20161011010929_subscribe_authors_to_diary_entries.rb

@@ -1,4 +1,7 @@
 class SubscribeAuthorsToDiaryEntries < ActiveRecord::Migration[4.2]
+  class DiaryEntry < ActiveRecord::Base
+  end
+
   def up
     DiaryEntry.find_each do |diary_entry|
       diary_entry.subscriptions.create(:user => diary_entry.user) unless diary_entry.subscribers.exists?(diary_entry.user.id)