求类Hirb工具：在Rails控制台表格化打印模型非数据库对象属性

Hey there! I totally get the frustration with Hirb not playing nice with custom model attributes—luckily, there are several tools and workarounds that solve this problem. Let's break them down:

1. TablePrint (TP) #

If you love the table-style output of Hirb but need support for non-database attributes, TablePrint is your go-to. It’s designed to handle any attribute or method on your model, not just database columns.

• Install it by adding gem 'table_print' to your Gemfile (under the :development group), then run bundle install.
• In the Rails console, use it like this:

  # Print all attributes (including custom ones) for a collection
  tp User.all
  
  # Print specific attributes (mix database and custom)
  tp User.all, :id, :email, :full_name, :custom_accessor_attr
  

  It’ll generate a clean, formatted table that includes every attribute/method you specify.

2. Awesome Print (AP) #

Awesome Print is a fan favorite for its colorful, readable output, and it automatically includes all attributes—database-backed and custom alike.

• Add gem 'awesome_print' to your Gemfile, bundle, then use it in the console:

  # Print a single record with all attributes
  ap User.first
  
  # Filter to show only specific attributes
  ap User.first, only: [:id, :username, :calculated_score]
  

  It highlights different data types and makes custom attributes easy to spot.

3. Pry (with Pry-Rails) #

If you’re already using Pry as your Rails console replacement, it has built-in pretty printing that includes custom attributes. Even better, it’s highly extensible.

• Install with gem 'pry-rails', group: :development, then run rails console (it’ll default to Pry).
• Simply call the object directly, or use the pp (pretty print) method for more structure:

  # Pry's default output shows all attributes
  User.first
  
  # For more structured output
  pp User.first
  

  You can also use show-doc User#custom_attr to inspect the method behind your custom attribute, which is great for debugging.

4. Hack Hirb to Support Custom Attributes #

If you really want to stick with Hirb, you can customize its output by defining a hirb_attributes method in your model. This lets you add custom attributes to Hirb’s table view:

class User < ApplicationRecord
  attr_accessor :temp_profile_status
  def full_name
    "#{first_name} #{last_name}"
  end

  # Override Hirb's attribute list
  def hirb_attributes
    # Start with default database attributes, then add custom ones
    super.merge(
      full_name: full_name,
      temp_profile_status: temp_profile_status
    )
  end
end

Now when you run hirb User.first in the console, Hirb will include your custom full_name and temp_profile_status in the table.

Bonus: Rails Built-in pp #

Don’t sleep on Rails’ built-in pp method! It’s not table-formatted, but it does a great job of pretty-printing all attributes (including custom ones) without any extra gems:

pp User.first

内容的提问来源于stack exchange，提问作者Simon