dump_and_seed's Introduction

Dump To Seed

Dump To Seed is a Rails plugin that adds a rake task named db:seed:dump.

It allows you to create seed data files from the existing data in your database.

fork from https://github.com/rroblak/dump_to_seed

Installation

Add it to your Gemfile with:

gem 'dump_to_seed'

Or install it by hand:

$ gem install dump_to_seed

Examples

Rake task

Dump all data directly to db/seeds.rb: Dump the data into a separate file for each table. e.g. db/seeds/users.rb, db/seeds/products.rb ...

  $ rails db:seed:dump

Result:

# frozen_string_literal: true

load(Rails.root.join('db','seeds','users.rb'))
load(Rails.root.join('db','seeds','products.rb'))

db/seeds/users.rb:

# frozen_string_literal: true

User.insert_all!([
  { password: "123456", username: "test_1" },
  { password: "234567", username: "test_2" }
])

db/seeds/products.rb:

# frozen_string_literal: true

Product.insert_all!([
  { category_id: 1, description: "Long Sleeve Shirt", name: "Long Sleeve Shirt" },
  { category_id: 3, description: "Plain White Tee Shirt", name: "Plain T-Shirt" }
])

Options

config/initializers/dump_to_seed.rb:

SeedDump.configure do |config|
  config.deny_tables = [/secure_*/, 'credit_cards']
  config.filter_colums = {
    users: {
      email: -> { "#{SecureRandom.uuid}@example.com" },
      token: -> {}
    }
  }
  config.table_class_mappings = {
    admin_staff: 'Admin::Staff'
  }
end

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