ruby - Building a database with Rails + Postgresql + Heroku

Question

I'm building a web app where the user's need to choose from a database of exercises. They should be able to see the exercise name, description, and skill level. What is the best practice for building a database table for this purpose?

I'm thinking I could write each exercise and its attributes in a CSV file, then write a ruby script that would parse it and create an exercise object in the database table for each exercise that it parses. However, I have never done this before and would appreciate feedback.

And how would I migrate this database table from development to production on Heroku?

Thanks so much for any info.

Answer 1

我最终创建了一个哈希数组并遍历了seeds.rb中的数组：

[
    { 
        :name         => "",
        :description  => "",
        :skill_level  => ""
    },
# Input more hashes below

].each do |exercise|
  ExerciseDb.create(
    name: exercise[:name]
    description: exercise[:description]
    skill_level: exercise[:skill_level]
  )
end

Answer 2

听起来像是一个带有名称、描述、技能水平和存储实际练习的东西的练习模型。由您决定是否要使用 csv 或 yaml 读取它 - 我同意 yaml 会更容易。还有如何存储用户的响应 - hstore、json、序列化 yaml...