diff --git a/db/migrate/20180713124501_make_investment_milestones_polymorphic.rb b/db/migrate/20180713124501_make_investment_milestones_polymorphic.rb
index 3b9b8d54d..423b76e9f 100644
--- a/db/migrate/20180713124501_make_investment_milestones_polymorphic.rb
+++ b/db/migrate/20180713124501_make_investment_milestones_polymorphic.rb
@@ -1,27 +1,27 @@
 class MakeInvestmentMilestonesPolymorphic < ActiveRecord::Migration[4.2]
   def change
-    create_table :milestones do |t|
-      t.references :milestoneable, polymorphic: true
+    create_table :milestones, id: :serial do |t|
+      t.string :milestoneable_type
+      t.integer :milestoneable_id
       t.string   "title", limit: 80
       t.text     "description"
       t.datetime "publication_date"
 
-      t.references :status, index: true
+      t.integer :status_id, index: true
 
       t.timestamps null: false
     end
 
-    reversible do |change|
-      change.up do
-        Milestone.create_translation_table!({
-          title: :string,
-          description: :text
-        })
-      end
+    create_table :milestone_translations do |t|
+      t.integer :milestone_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-      change.down do
-        Milestone.drop_translation_table!
-      end
+      t.string :title
+      t.text :description
+
+      t.index :locale
+      t.index :milestone_id
     end
   end
 end
diff --git a/db/migrate/20180718115545_create_i18n_content_translations.rb b/db/migrate/20180718115545_create_i18n_content_translations.rb
index 478ef6d8e..479b53942 100644
--- a/db/migrate/20180718115545_create_i18n_content_translations.rb
+++ b/db/migrate/20180718115545_create_i18n_content_translations.rb
@@ -1,20 +1,18 @@
 class CreateI18nContentTranslations < ActiveRecord::Migration[4.2]
   def change
-    create_table :i18n_contents do |t|
+    create_table :i18n_contents, id: :serial do |t|
       t.string :key
     end
 
-    reversible do |dir|
-      dir.up do
-        I18nContent.create_translation_table!(
-          { value: :text },
-          { migrate_data: true }
-        )
-      end
+    create_table :i18n_content_translations do |t|
+      t.integer :i18n_content_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-      dir.down do
-        I18nContent.drop_translation_table!
-      end
+      t.text :value
+
+      t.index :i18n_content_id
+      t.index :locale
     end
   end
 end
diff --git a/db/migrate/20180727140800_add_banner_translations.rb b/db/migrate/20180727140800_add_banner_translations.rb
index 710dc8237..36bbb541d 100644
--- a/db/migrate/20180727140800_add_banner_translations.rb
+++ b/db/migrate/20180727140800_add_banner_translations.rb
@@ -1,15 +1,15 @@
 class AddBannerTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    Banner.create_translation_table!(
-      {
-        title:       :string,
-        description: :text
-      },
-      { migrate_data: true }
-    )
-  end
+  def change
+    create_table :banner_translations do |t|
+      t.integer :banner_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-  def self.down
-    Banner.drop_translation_table!
+      t.string :title
+      t.text :description
+
+      t.index :banner_id
+      t.index :locale
+    end
   end
 end
diff --git a/db/migrate/20180730120800_add_homepage_content_translations.rb b/db/migrate/20180730120800_add_homepage_content_translations.rb
index b8c8a8e74..0d0c95c65 100644
--- a/db/migrate/20180730120800_add_homepage_content_translations.rb
+++ b/db/migrate/20180730120800_add_homepage_content_translations.rb
@@ -1,17 +1,17 @@
 class AddHomepageContentTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    Widget::Card.create_translation_table!(
-      {
-        label:       :string,
-        title:       :string,
-        description: :text,
-        link_text:   :string
-      },
-      { migrate_data: true }
-    )
-  end
+  def change
+    create_table :widget_card_translations do |t|
+      t.integer :widget_card_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-  def self.down
-    Widget::Card.drop_translation_table!
+      t.string :label
+      t.string :title
+      t.text :description
+      t.string :link_text
+
+      t.index :locale
+      t.index :widget_card_id
+    end
   end
 end
diff --git a/db/migrate/20180730213824_add_poll_translations.rb b/db/migrate/20180730213824_add_poll_translations.rb
index c4c9b4bbc..9acd6d2f6 100644
--- a/db/migrate/20180730213824_add_poll_translations.rb
+++ b/db/migrate/20180730213824_add_poll_translations.rb
@@ -1,16 +1,16 @@
 class AddPollTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    Poll.create_translation_table!(
-      {
-        name:        :string,
-        summary:     :text,
-        description: :text
-      },
-      { migrate_data: true }
-    )
-  end
+  def change
+    create_table :poll_translations do |t|
+      t.integer :poll_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-  def self.down
-    Poll.drop_translation_table!
+      t.string :name
+      t.text :summary
+      t.text :description
+
+      t.index :locale
+      t.index :poll_id
+    end
   end
 end
diff --git a/db/migrate/20180731150800_add_admin_notification_translations.rb b/db/migrate/20180731150800_add_admin_notification_translations.rb
index daff4bc5d..5d5713d2a 100644
--- a/db/migrate/20180731150800_add_admin_notification_translations.rb
+++ b/db/migrate/20180731150800_add_admin_notification_translations.rb
@@ -1,15 +1,15 @@
 class AddAdminNotificationTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    AdminNotification.create_translation_table!(
-      {
-        title: :string,
-        body:  :text
-      },
-      { migrate_data: true }
-    )
-  end
+  def change
+    create_table :admin_notification_translations do |t|
+      t.integer :admin_notification_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-  def self.down
-    AdminNotification.drop_translation_table!
+      t.string :title
+      t.text :body
+
+      t.index :admin_notification_id
+      t.index :locale
+    end
   end
 end
diff --git a/db/migrate/20180731173147_add_poll_question_translations.rb b/db/migrate/20180731173147_add_poll_question_translations.rb
index 6d5676c40..55955ae43 100644
--- a/db/migrate/20180731173147_add_poll_question_translations.rb
+++ b/db/migrate/20180731173147_add_poll_question_translations.rb
@@ -1,12 +1,14 @@
 class AddPollQuestionTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    Poll::Question.create_translation_table!(
-      { title: :string },
-      { migrate_data: true }
-    )
-  end
+  def change
+    create_table :poll_question_translations do |t|
+      t.integer :poll_question_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-  def self.down
-    Poll::Question.drop_translation_table!
+      t.string :title
+
+      t.index :locale
+      t.index :poll_question_id
+    end
   end
 end
diff --git a/db/migrate/20180801114529_add_poll_question_answer_translations.rb b/db/migrate/20180801114529_add_poll_question_answer_translations.rb
index f9ef730d5..33cff66f3 100644
--- a/db/migrate/20180801114529_add_poll_question_answer_translations.rb
+++ b/db/migrate/20180801114529_add_poll_question_answer_translations.rb
@@ -1,15 +1,15 @@
 class AddPollQuestionAnswerTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    Poll::Question::Answer.create_translation_table!(
-      {
-        title:       :string,
-        description: :text
-      },
-      { migrate_data: true }
-    )
-  end
+  def change
+    create_table :poll_question_answer_translations do |t|
+      t.integer :poll_question_answer_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-  def self.down
-    Poll::Question::Answer.drop_translation_table!
+      t.string :title
+      t.text :description
+
+      t.index :locale
+      t.index :poll_question_answer_id, name: "index_85270fa85f62081a3a227186b4c95fe4f7fa94b9"
+    end
   end
 end
diff --git a/db/migrate/20180801140800_add_collaborative_legislation_translations.rb b/db/migrate/20180801140800_add_collaborative_legislation_translations.rb
index 7dc385f77..9a30618f1 100644
--- a/db/migrate/20180801140800_add_collaborative_legislation_translations.rb
+++ b/db/migrate/20180801140800_add_collaborative_legislation_translations.rb
@@ -1,42 +1,54 @@
 class AddCollaborativeLegislationTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    Legislation::Process.create_translation_table!(
-      {
-        title:           :string,
-        summary:         :text,
-        description:     :text,
-        additional_info: :text
-      },
-      { migrate_data: true }
-    )
+  def change
+    create_table :legislation_process_translations do |t|
+      t.integer :legislation_process_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-    Legislation::Question.create_translation_table!(
-      { title: :text },
-      { migrate_data: true }
-    )
+      t.string :title
+      t.text :summary
+      t.text :description
+      t.text :additional_info
 
-    Legislation::DraftVersion.create_translation_table!(
-      {
-        title:     :string,
-        changelog: :text,
-        body:      :text
-      },
-      { migrate_data: true }
-    )
+      t.index :legislation_process_id, name: "index_199e5fed0aca73302243f6a1fca885ce10cdbb55"
+      t.index :locale
+    end
 
-    add_column :legislation_draft_version_translations, :body_html, :text
-    add_column :legislation_draft_version_translations, :toc_html, :text
+    create_table :legislation_question_translations do |t|
+      t.integer :legislation_question_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-    Legislation::QuestionOption.create_translation_table!(
-      { value: :string },
-      { migrate_data: true }
-    )
-  end
+      t.text :title
 
-  def self.down
-    Legislation::Process.drop_translation_table!
-    Legislation::DraftVersion.drop_translation_table!
-    Legislation::Question.drop_translation_table!
-    Legislation::QuestionOption.drop_translation_table!
+      t.index :legislation_question_id, name: "index_d34cc1e1fe6d5162210c41ce56533c5afabcdbd3"
+      t.index :locale
+    end
+
+    create_table :legislation_draft_version_translations do |t|
+      t.integer :legislation_draft_version_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
+
+      t.string :title
+      t.text :changelog
+      t.text :body
+      t.text :body_html
+      t.text :toc_html
+
+      t.index :legislation_draft_version_id, name: "index_900e5ba94457606e69e89193db426e8ddff809bc"
+      t.index :locale
+    end
+
+    create_table :legislation_question_option_translations do |t|
+      t.integer :legislation_question_option_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
+
+      t.string :value
+
+      t.index :legislation_question_option_id, name: "index_61bcec8729110b7f8e1e9e5ce08780878597a209"
+      t.index :locale
+    end
   end
 end
diff --git a/db/migrate/20180924071722_add_translate_pages.rb b/db/migrate/20180924071722_add_translate_pages.rb
index 987da6eb8..a5f5cfdce 100644
--- a/db/migrate/20180924071722_add_translate_pages.rb
+++ b/db/migrate/20180924071722_add_translate_pages.rb
@@ -1,19 +1,18 @@
 class AddTranslatePages < ActiveRecord::Migration[4.2]
-  def self.up
-    SiteCustomization::Page.create_translation_table!(
-      {
-        title:    :string,
-        subtitle: :string,
-        content:  :text
-      },
-      { migrate_data: true }
-    )
+  def change
+    create_table :site_customization_page_translations do |t|
+      t.integer :site_customization_page_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-    change_column :site_customization_pages, :title, :string, null: true
-  end
+      t.string :title
+      t.string :subtitle
+      t.text :content
 
-  def self.down
-    SiteCustomization::Page.drop_translation_table!
-    change_column :site_customization_pages, :title, :string, null: false
+      t.index :locale
+      t.index :site_customization_page_id, name: "index_7fa0f9505738cb31a31f11fb2f4c4531fed7178b"
+    end
+
+    change_column_null :site_customization_pages, :title, from: false, to: true
   end
 end
diff --git a/db/migrate/20181129115006_add_proposals_translations.rb b/db/migrate/20181129115006_add_proposals_translations.rb
index 8f05fbffd..4348cdbc8 100644
--- a/db/migrate/20181129115006_add_proposals_translations.rb
+++ b/db/migrate/20181129115006_add_proposals_translations.rb
@@ -1,17 +1,17 @@
 class AddProposalsTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    Proposal.create_translation_table!(
-      {
-        title:               :string,
-        description:         :text,
-        summary:             :text,
-        retired_explanation: :text
-      },
-      { migrate_data: true }
-    )
-  end
+  def change
+    create_table :proposal_translations do |t|
+      t.integer :proposal_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-  def self.down
-    Proposal.drop_translation_table!
+      t.string :title
+      t.text :description
+      t.text :summary
+      t.text :retired_explanation
+
+      t.index :locale
+      t.index :proposal_id
+    end
   end
 end
diff --git a/db/migrate/20181130141019_add_debates_translations.rb b/db/migrate/20181130141019_add_debates_translations.rb
index 2cd1ad432..607abe3d3 100644
--- a/db/migrate/20181130141019_add_debates_translations.rb
+++ b/db/migrate/20181130141019_add_debates_translations.rb
@@ -1,15 +1,15 @@
 class AddDebatesTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    Debate.create_translation_table!(
-      {
-        title:               :string,
-        description:         :text
-       },
-      { migrate_data: true }
-    )
-  end
+  def change
+    create_table :debate_translations do |t|
+      t.integer :debate_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-  def self.down
-    Debate.drop_translation_table!
+      t.string :title
+      t.text :description
+
+      t.index :debate_id
+      t.index :locale
+    end
   end
 end
diff --git a/db/migrate/20181205102153_add_comments_translations.rb b/db/migrate/20181205102153_add_comments_translations.rb
index a7ea1b64c..c834a4bff 100644
--- a/db/migrate/20181205102153_add_comments_translations.rb
+++ b/db/migrate/20181205102153_add_comments_translations.rb
@@ -1,14 +1,14 @@
 class AddCommentsTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    Comment.create_translation_table!(
-      {
-        body:               :text
-       },
-      { migrate_data: true }
-    )
-  end
+  def change
+    create_table :comment_translations do |t|
+      t.integer :comment_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-  def self.down
-    Comment.drop_translation_table!
+      t.text :body
+
+      t.index :comment_id
+      t.index :locale
+    end
   end
 end
diff --git a/db/migrate/20181206153510_add_home_page_to_legislation_processes.rb b/db/migrate/20181206153510_add_home_page_to_legislation_processes.rb
index 101aedbfe..741f8b424 100644
--- a/db/migrate/20181206153510_add_home_page_to_legislation_processes.rb
+++ b/db/migrate/20181206153510_add_home_page_to_legislation_processes.rb
@@ -1,15 +1,6 @@
 class AddHomePageToLegislationProcesses < ActiveRecord::Migration[4.2]
   def change
     add_column :legislation_processes, :homepage_enabled, :boolean, default: false
-
-    reversible do |dir|
-      dir.up do
-        Legislation::Process.add_translation_fields! homepage: :text
-      end
-
-      dir.down do
-        remove_column :legislation_process_translations, :homepage
-      end
-    end
+    add_column :legislation_process_translations, :homepage, :text
   end
 end
diff --git a/db/migrate/20181214094002_add_budget_investment_translations.rb b/db/migrate/20181214094002_add_budget_investment_translations.rb
index 51b9fd048..53d7f9831 100644
--- a/db/migrate/20181214094002_add_budget_investment_translations.rb
+++ b/db/migrate/20181214094002_add_budget_investment_translations.rb
@@ -1,17 +1,15 @@
 class AddBudgetInvestmentTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    Budget::Investment::Translation.without_auditing do
-      Budget::Investment.create_translation_table!(
-        {
-          title:               :string,
-          description:         :text
-        },
-        { migrate_data: true }
-      )
+  def change
+    create_table :budget_investment_translations do |t|
+      t.integer :budget_investment_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
+
+      t.string :title
+      t.text :description
+
+      t.index :budget_investment_id
+      t.index :locale
     end
   end
-
-  def self.down
-    Budget::Investment.drop_translation_table!
-  end
 end
diff --git a/db/migrate/20190103132925_create_progress_bars.rb b/db/migrate/20190103132925_create_progress_bars.rb
index 3ada28004..d7e026e35 100644
--- a/db/migrate/20190103132925_create_progress_bars.rb
+++ b/db/migrate/20190103132925_create_progress_bars.rb
@@ -1,23 +1,23 @@
 class CreateProgressBars < ActiveRecord::Migration[4.2]
   def change
-    create_table :progress_bars do |t|
+    create_table :progress_bars, id: :serial do |t|
       t.integer :kind
       t.integer :percentage
-      t.references :progressable, polymorphic: true
+      t.string :progressable_type
+      t.integer :progressable_id
 
       t.timestamps null: false
     end
 
-    reversible do |change|
-      change.up do
-        ProgressBar.create_translation_table!({
-          title: :string
-        })
-      end
+    create_table :progress_bar_translations do |t|
+      t.integer :progress_bar_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-      change.down do
-        ProgressBar.drop_translation_table!
-      end
+      t.string :title
+
+      t.index :locale
+      t.index :progress_bar_id
     end
   end
 end
diff --git a/db/migrate/20190104170114_add_active_polls_translations.rb b/db/migrate/20190104170114_add_active_polls_translations.rb
index 51f99a0e8..ef3ff02b2 100644
--- a/db/migrate/20190104170114_add_active_polls_translations.rb
+++ b/db/migrate/20190104170114_add_active_polls_translations.rb
@@ -1,14 +1,14 @@
 class AddActivePollsTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    ActivePoll.create_translation_table!(
-      {
-        description: :text
-      },
-      { migrate_data: true }
-    )
-  end
+  def change
+    create_table :active_poll_translations do |t|
+      t.integer :active_poll_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-  def self.down
-    ActivePollPoll.drop_translation_table!
+      t.text "description"
+
+      t.index :active_poll_id
+      t.index :locale
+    end
   end
 end
diff --git a/db/migrate/20190118135741_add_budget_translations.rb b/db/migrate/20190118135741_add_budget_translations.rb
index a561ebb47..41d04db86 100644
--- a/db/migrate/20190118135741_add_budget_translations.rb
+++ b/db/migrate/20190118135741_add_budget_translations.rb
@@ -1,14 +1,14 @@
 class AddBudgetTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    Budget.create_translation_table!(
-      {
-        name: :string
-      },
-      { migrate_data: true }
-    )
-  end
+  def change
+    create_table :budget_translations do |t|
+      t.integer :budget_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-  def self.down
-    Budget.drop_translation_table!
+      t.string :name
+
+      t.index :budget_id
+      t.index :locale
+    end
   end
 end
diff --git a/db/migrate/20190119160418_add_budget_phase_translations.rb b/db/migrate/20190119160418_add_budget_phase_translations.rb
index 07bbf3c84..e3f10a8a9 100644
--- a/db/migrate/20190119160418_add_budget_phase_translations.rb
+++ b/db/migrate/20190119160418_add_budget_phase_translations.rb
@@ -1,15 +1,15 @@
 class AddBudgetPhaseTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    Budget::Phase.create_translation_table!(
-      {
-        description: :text,
-        summary: :text
-      },
-      { migrate_data: true }
-    )
-  end
+  def change
+    create_table :budget_phase_translations do |t|
+      t.integer :budget_phase_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-  def self.down
-    Budget::Phase.drop_translation_table!
+      t.text :description
+      t.text :summary
+
+      t.index :budget_phase_id
+      t.index :locale
+    end
   end
 end
diff --git a/db/migrate/20190120155819_add_budget_group_translations.rb b/db/migrate/20190120155819_add_budget_group_translations.rb
index b7c2e841f..d45795192 100644
--- a/db/migrate/20190120155819_add_budget_group_translations.rb
+++ b/db/migrate/20190120155819_add_budget_group_translations.rb
@@ -1,14 +1,14 @@
 class AddBudgetGroupTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    Budget::Group.create_translation_table!(
-      {
-        name: :string
-      },
-      { migrate_data: true }
-    )
-  end
+  def change
+    create_table :budget_group_translations do |t|
+      t.integer :budget_group_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-  def self.down
-    Budget::Group.drop_translation_table!
+      t.string :name
+
+      t.index :budget_group_id
+      t.index :locale
+    end
   end
 end
diff --git a/db/migrate/20190121171237_add_budget_heading_translations.rb b/db/migrate/20190121171237_add_budget_heading_translations.rb
index f6889422e..c8cf50e09 100644
--- a/db/migrate/20190121171237_add_budget_heading_translations.rb
+++ b/db/migrate/20190121171237_add_budget_heading_translations.rb
@@ -1,14 +1,14 @@
 class AddBudgetHeadingTranslations < ActiveRecord::Migration[4.2]
-  def self.up
-    Budget::Heading.create_translation_table!(
-      {
-        name: :string
-      },
-      { migrate_data: true }
-    )
-  end
+  def change
+    create_table :budget_heading_translations do |t|
+      t.integer :budget_heading_id, null: false
+      t.string :locale, null: false
+      t.timestamps null: false
 
-  def self.down
-    Budget::Heading.drop_translation_table!
+      t.string :name
+
+      t.index :budget_heading_id
+      t.index :locale
+    end
   end
 end