ruby - 提高大型 attr_accessor 的可读性

Question

定义非常大的常量或attr_accessor符号时怎么办？例如，像这样:

ATTRIBUTES = %w(id name full_name owner private html_url description fork url forks_url keys_url collaborators_url teams_url hooks_url issue_events_url events_url assignees_url branches_url tags_url blobs_url git_tags_url git_refs_url trees_url statuses_url languages_url stargazers_url contributors_url subscribers_url subscription_url commits_url git_commits_url comments_url issue_comment_url contents_url compare_url merges_url archive_url downloads_url issues_url pulls_url milestones_url)

attr_accessor :name, :login, :full_name, :owner, :private, :html_url, :description, :fork, :url

在类里面很糟糕。这是最好的方法吗？我想知道是否还有其他方法可以提高可读性。

Answer 1

以一定宽度改变线条:

ATTRIBUTES = %w[
  id name full_name owner private html_url description fork url forks_url
  keys_url collaborators_url teams_url hooks_url issue_events_url events_url
  ...
]

或者如果您不需要保存行，那么将每个项目放在单独的行上可能很容易:

ATTRIBUTES = %w[
  id name
  full_name
  owner
  private
  html_url
  ...
]

或者如果你有时间格式化，那么你可能想要制作几列并对齐它们:

ATTRIBUTES = %w[
  id                 name                full_name          owner             
  private html_url   description fork    url                forks_url
  keys_url           collaborators_url   teams_url          hooks_url
  issue_events_url   events_url          ...
]

在 Ruby 2.0 中，为符号数组引入了一个新的文字表达式 %i[...]:

attr_accessor *%i[
  name
  login
  full_name
  owner
  private
  ...
]