new revision migrations

db/migrate/20190917135359_create_status_revisions.rb

@@ -0,0 +1,9 @@
+class CreateStatusRevisions < ActiveRecord::Migration[5.2]
+  def change
+    create_table :status_revisions do |t|
+      t.bigint :status_id
+      t.string :text
+      t.timestamps
+    end
+  end
+end

db/migrate/20190917141707_add_revised_at_to_statuses.rb

@@ -0,0 +1,5 @@
+class AddRevisedAtToStatuses < ActiveRecord::Migration[5.2]
+  def change
+    add_column :statuses, :revised_at, :datetime
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2019_09_03_162122) do
+ActiveRecord::Schema.define(version: 2019_09_17_141707) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -672,6 +672,13 @@ ActiveRecord::Schema.define(version: 2019_09_03_162122) do
     t.index ["account_id", "status_id"], name: "index_status_pins_on_account_id_and_status_id", unique: true
   end
 
+  create_table "status_revisions", force: :cascade do |t|
+    t.bigint "status_id"
+    t.string "text"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
   create_table "status_stats", force: :cascade do |t|
     t.bigint "status_id", null: false
     t.bigint "replies_count", default: 0, null: false
@@ -703,6 +710,7 @@ ActiveRecord::Schema.define(version: 2019_09_03_162122) do
     t.bigint "poll_id"
     t.integer "group_id"
     t.bigint "quote_of_id"
+    t.datetime "revised_at"
     t.index ["account_id", "id", "visibility", "updated_at"], name: "index_statuses_20180106", order: { id: :desc }
     t.index ["group_id"], name: "index_statuses_on_group_id"
     t.index ["in_reply_to_account_id"], name: "index_statuses_on_in_reply_to_account_id"