change migration file

db/migrate/20170403155230_create_employees.rb

@@ -9,6 +9,7 @@ class CreateEmployees < ActiveRecord::Migration[5.1]
       t.datetime :session_expiry
       t.datetime :session_last_login
       t.string :created_by
+      t.string :image_path
       t.timestamps
     end
   end

db/migrate/20170622050926_create_customers.rb

@@ -18,6 +18,7 @@ class CreateCustomers < ActiveRecord::Migration[5.1]
       t.string :membership_authentication_code
       t.string :customer_type, :default => "Dinein"
       t.json   :tax_profiles
+      t.string :image_path
     end
   end
 end

db/migrate/20170825090115_create_commissioners.rb

@@ -9,6 +9,7 @@ class CreateCommissioners < ActiveRecord::Migration[5.1]
       t.datetime :joined_date
       t.datetime :resigned_date
       t.boolean :is_active, default: true
+      t.string :image_path
       t.timestamps
     end
   end

db/migrate/20180213050551_add_image_path_to_employees.rb

@@ -1,9 +0,0 @@
-class AddImagePathToEmployees < ActiveRecord::Migration[5.1]
-  def change
-    add_column :employees, :image_path, :string
-  end
-
-  def down
-  	remove_column :image_path
-  end
-end

db/migrate/20180213050631_add_image_path_to_customers.rb

@@ -1,9 +0,0 @@
-class AddImagePathToCustomers < ActiveRecord::Migration[5.1]
-  def change
-    add_column :customers, :image_path, :string
-  end
-
-  def down
-  	remove_column :image_path
-  end
-end

db/migrate/20180213052206_add_image_path_to_commissioners.rb

@@ -1,9 +0,0 @@
-class AddImagePathToCommissioners < ActiveRecord::Migration[5.1]
-  def change
-    add_column :commissioners, :image_path, :string
-  end
-
-  def down
-  	remove_column :image_path
-  end
-end