Fix after review

db/migrate/20170302105557_create_initiated_mails.rb

@@ -1,7 +1,7 @@
 class CreateInitiatedMails < ActiveRecord::Migration[5.0]
   def change
     create_table :initiated_mails do |t|
-      t.text :object
+      t.string :object
       t.text :body
       t.belongs_to :procedure, index: true, unique: true, foreign_key: true
 

db/migrate/20170302112312_remove_deposit_datetime_from_dossiers.rb

@@ -1,8 +1,17 @@
 class RemoveDepositDatetimeFromDossiers < ActiveRecord::Migration[5.0]
   def change
+    remove_column :dossiers, :deposit_datetime, :datetime
+  end
+
+  def up
     Dossier.where.not(deposit_datetime: nil).each do |dossier|
       dossier.update(initiated_at: dossier.deposit_datetime)
     end
-    remove_column :dossiers, :deposit_datetime, :datetime
+  end
+
+  def down
+    Dossier.where.not(initiated_at: nil).each do |dossier|
+      dossier.update(deposit_datetime: dossier.initiated_at)
+    end
   end
 end

db/migrate/20170306102116_create_received_mails.rb

@@ -2,7 +2,7 @@ class CreateReceivedMails < ActiveRecord::Migration[5.0]
   def change
     create_table :received_mails do |t|
       t.text :body
-      t.text :object
+      t.string :object
       t.references :procedure, foreign_key: true
 
       t.column  :created_at, :timestamp, null: true

db/migrate/20170306102238_create_closed_mails.rb

@@ -2,7 +2,7 @@ class CreateClosedMails < ActiveRecord::Migration[5.0]
   def change
     create_table :closed_mails do |t|
       t.text :body
-      t.text :object
+      t.string :object
       t.belongs_to :procedure, index: true, unique: true, foreign_key: true
 
       t.timestamps

db/migrate/20170306102256_create_refused_mails.rb

@@ -2,7 +2,7 @@ class CreateRefusedMails < ActiveRecord::Migration[5.0]
   def change
     create_table :refused_mails do |t|
       t.text :body
-      t.text :object
+      t.string :object
       t.belongs_to :procedure, index: true, unique: true, foreign_key: true
 
       t.timestamps

db/migrate/20170306102320_create_without_continuation_mails.rb

@@ -2,7 +2,7 @@ class CreateWithoutContinuationMails < ActiveRecord::Migration[5.0]
   def change
     create_table :without_continuation_mails do |t|
       t.text :body
-      t.text :object
+      t.string :object
       t.belongs_to :procedure, index: true, unique: true, foreign_key: true
 
       t.timestamps

db/schema.rb

@@ -10,7 +10,6 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-
 ActiveRecord::Schema.define(version: 20170307092820) do
 
   # These are extensions that must be enabled in order to support this database
@@ -107,7 +106,7 @@ ActiveRecord::Schema.define(version: 20170307092820) do
 
   create_table "closed_mails", force: :cascade do |t|
     t.text     "body"
-    t.text     "object"
+    t.string   "object"
     t.integer  "procedure_id"
     t.datetime "created_at",   null: false
     t.datetime "updated_at",   null: false
@@ -238,7 +237,7 @@ ActiveRecord::Schema.define(version: 20170307092820) do
   end
 
   create_table "initiated_mails", force: :cascade do |t|
-    t.text     "object"
+    t.string   "object"
     t.text     "body"
     t.integer  "procedure_id"
     t.datetime "created_at",   null: false
@@ -357,7 +356,7 @@ ActiveRecord::Schema.define(version: 20170307092820) do
 
   create_table "received_mails", force: :cascade do |t|
     t.text     "body"
-    t.text     "object"
+    t.string   "object"
     t.integer  "procedure_id"
     t.datetime "created_at",   null: false
     t.datetime "updated_at",   null: false
@@ -366,7 +365,7 @@ ActiveRecord::Schema.define(version: 20170307092820) do
 
   create_table "refused_mails", force: :cascade do |t|
     t.text     "body"
-    t.text     "object"
+    t.string   "object"
     t.integer  "procedure_id"
     t.datetime "created_at",   null: false
     t.datetime "updated_at",   null: false
@@ -426,7 +425,7 @@ ActiveRecord::Schema.define(version: 20170307092820) do
 
   create_table "without_continuation_mails", force: :cascade do |t|
     t.text     "body"
-    t.text     "object"
+    t.string   "object"
     t.integer  "procedure_id"
     t.datetime "created_at",   null: false
     t.datetime "updated_at",   null: false