feat: add udt account model

app/models/udt_account.rb

@@ -0,0 +1,29 @@
+class UdtAccount < ApplicationRecord
+  enum udt_type: { sudt: 0 }
+
+  belongs_to :address
+
+  validates_presence_of :full_name, :symbol, :decimal, :amount
+  validates_length_of :symbol, minimum: 1, maximum: 16
+  validates :decimal, numericality: { greater_than_or_equal_to: 0, less_than_or_equal_to: 39 }
+  validates :amount, numericality: { greater_than_or_equal_to: 0 }
+end
+
+# == Schema Information
+#
+# Table name: udt_accounts
+#
+#  id         :bigint           not null, primary key
+#  udt_type   :integer
+#  full_name  :string
+#  symbol     :string
+#  decimal    :integer
+#  amount     :decimal(40, )
+#  address_id :bigint
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#
+# Indexes
+#
+#  index_udt_accounts_on_address_id  (address_id)
+#

db/migrate/20200226063458_create_udt_accounts.rb

@@ -0,0 +1,14 @@
+class CreateUdtAccounts < ActiveRecord::Migration[6.0]
+  def change
+    create_table :udt_accounts do |t|
+      t.integer :udt_type
+      t.string :full_name
+      t.string :symbol
+      t.integer :decimal
+      t.decimal :amount, precision: 40
+      t.references :address
+
+      t.timestamps
+    end
+  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: 2020_01_22_060907) do
+ActiveRecord::Schema.define(version: 2020_02_26_063458) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -300,6 +300,18 @@
     t.index ["cell_output_id"], name: "index_type_scripts_on_cell_output_id"
   end
 
+  create_table "udt_accounts", force: :cascade do |t|
+    t.integer "udt_type"
+    t.string "full_name"
+    t.string "symbol"
+    t.integer "decimal"
+    t.decimal "amount", precision: 40
+    t.bigint "address_id"
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["address_id"], name: "index_udt_accounts_on_address_id"
+  end
+
   create_table "uncle_blocks", force: :cascade do |t|
     t.binary "block_hash"
     t.decimal "number", precision: 30

test/factories/udt_account.rb

@@ -0,0 +1,10 @@
+FactoryBot.define do
+  factory :udt_account do
+    address
+    udt_type { "sudt" }
+    full_name { "kingdom fat coin" }
+    symbol { "kfc" }
+    decimal { 6 }
+    amount { 100000000000 * 10**6 }
+  end
+end

test/models/udt_account_test.rb

@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class UdtAccountTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end