Binding interface for bank statements

db/migrate/20150415075408_fix_account_balances_to_decimal.rb

@@ -0,0 +1,10 @@
+class FixAccountBalancesToDecimal < ActiveRecord::Migration
+  def change
+    Account.all.each do |x|
+      x.balance = 0.0 unless x.balance
+      x.save
+    end
+
+    change_column :accounts, :balance, :decimal, null: false, default: 0
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20150414124630) do
+ActiveRecord::Schema.define(version: 20150415075408) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -29,7 +29,7 @@ ActiveRecord::Schema.define(version: 20150414124630) do
   create_table "accounts", force: :cascade do |t|
     t.integer  "registrar_id"
     t.string   "account_type"
-    t.decimal  "balance"
+    t.decimal  "balance",      default: 0.0, null: false
     t.datetime "created_at"
     t.datetime "updated_at"
   end