跳至内容 跳至搜索
命名空间
方法
A
C
F
H
I
L
P
S

常量

DEFAULT_ALIASES = { rails: { actions: "-a", orm: "-o", javascripts: ["-j", "--js"], resource_controller: "-c", scaffold_controller: "-c", stylesheets: "-y", template_engine: "-e", test_framework: "-t" }, test_unit: { fixture_replacement: "-r", } }
 
DEFAULT_OPTIONS = { rails: { api: false, assets: true, force_plural: false, helper: true, integration_tool: nil, orm: false, resource_controller: :controller, resource_route: true, scaffold_controller: :scaffold_controller, system_tests: nil, test_framework: nil, template_engine: :erb } }
 

类公共方法

api_only!()

为仅限于 API 的应用程序配置生成器。它主要隐藏通常与浏览器相关的元素,例如资产和会话迁移生成器,并完全禁用辅助程序和资产,因此诸如脚手架之类的生成器不会创建它们。

# File railties/lib/rails/generators.rb, line 116
def api_only!
  hide_namespaces "assets", "helper", "css", "js"

  options[:rails].merge!(
    api: true,
    assets: false,
    helper: false,
    template_engine: nil
  )

  options[:mailer] ||= {}
  options[:mailer][:template_engine] ||= :erb
end

fallbacks()

保存配置好的生成器回退。如果插件开发人员希望生成器组在缺少生成器的情况下回退到另一个组,他们可以添加一个回退。

例如,shoulda 被认为是一个测试框架,并且是 test_unit 的扩展。但是,shoulda 生成器的大部分与 test_unit 生成器类似。

然后,Shoulda 可以通过添加回退来告诉生成器在某些生成器不可用时搜索 test_unit 生成器

Rails::Generators.fallbacks[:shoulda] = :test_unit
# File railties/lib/rails/generators.rb, line 108
def fallbacks
  @fallbacks ||= {}
end

help(command = "generate")

显示带有可用生成器的帮助消息。

# File railties/lib/rails/generators.rb, line 170
def help(command = "generate")
  puts "Usage:"
  puts "  bin/rails #{command} GENERATOR [args] [options]"
  puts
  puts "General options:"
  puts "  -h, [--help]     # Print generator's options and usage"
  puts "  -p, [--pretend]  # Run but do not make any changes"
  puts "  -f, [--force]    # Overwrite files that already exist"
  puts "  -s, [--skip]     # Skip files that already exist"
  puts "  -q, [--quiet]    # Suppress status output"
  puts
  puts "Please choose a generator below."
  puts

  print_generators
end

hidden_namespaces()

返回一个隐藏的生成器命名空间数组。生成器命名空间可能因各种原因而被隐藏。有些是别名,例如“rails:migration”,可以使用较短的“migration”调用。

# File railties/lib/rails/generators.rb, line 134
def hidden_namespaces
  @hidden_namespaces ||= begin
    orm      = options[:rails][:orm]
    test     = options[:rails][:test_framework]
    template = options[:rails][:template_engine]

    [
      "rails",
      "resource_route",
      "#{orm}:migration",
      "#{orm}:model",
      "#{test}:controller",
      "#{test}:helper",
      "#{test}:integration",
      "#{test}:system",
      "#{test}:mailer",
      "#{test}:model",
      "#{test}:scaffold",
      "#{test}:view",
      "#{test}:job",
      "#{template}:controller",
      "#{template}:scaffold",
      "#{template}:mailer",
      "action_text:install",
      "action_mailbox:install",
      "devcontainer"
    ]
  end
end

hide_namespace(*namespaces)

hide_namespaces(*namespaces)

也称为: hide_namespace
# File railties/lib/rails/generators.rb, line 164
def hide_namespaces(*namespaces)
  hidden_namespaces.concat(namespaces)
end

invoke(namespace, args = ARGV, config = {})

接收一个命名空间、参数和行为来调用生成器。它被用作 generate、destroy 和 update 命令的默认入口点。

# File railties/lib/rails/generators.rb, line 261
      def invoke(namespace, args = ARGV, config = {})
        names = namespace.to_s.split(":")
        if klass = find_by_namespace(names.pop, names.any? && names.join(":"))
          args << "--help" if args.empty? && klass.arguments.any?(&:required?)
          klass.start(args, config)
          run_after_generate_callback if config[:behavior] == :invoke
        else
          options = sorted_groups.flat_map(&:last)
          error = Command::CorrectableNameError.new("Could not find generator '#{namespace}'.", namespace, options)

          puts <<~MSG
            #{error.detailed_message}
            Run `bin/rails generate --help` for more options.
          MSG
          exit 1
        end
      end

print_generators()

# File railties/lib/rails/generators.rb, line 192
def print_generators
  sorted_groups.each { |b, n| print_list(b, n) }
end

public_namespaces()

# File railties/lib/rails/generators.rb, line 187
def public_namespaces
  lookup!
  subclasses.map(&:namespace)
end

sorted_groups()

# File railties/lib/rails/generators.rb, line 196
def sorted_groups
  namespaces = public_namespaces
  namespaces.sort!

  groups = Hash.new { |h, k| h[k] = [] }
  namespaces.each do |namespace|
    base = namespace.split(":").first
    groups[base] << namespace
  end

  rails = groups.delete("rails")
  rails.map! { |n| n.delete_prefix("rails:") }
  rails.delete("app")
  rails.delete("plugin")
  rails.delete("encrypted_file")
  rails.delete("encryption_key_file")
  rails.delete("master_key")
  rails.delete("credentials")
  rails.delete("db:system:change")

  hidden_namespaces.each { |n| groups.delete(n.to_s) }

  [[ "rails", rails ]] + groups.sort.to_a
end

类私有方法

command_type()

# File railties/lib/rails/generators.rb, line 306
def command_type # :doc:
  @command_type ||= "generator"
end

file_lookup_paths()

# File railties/lib/rails/generators.rb, line 314
def file_lookup_paths # :doc:
  @file_lookup_paths ||= [ "{#{lookup_paths.join(',')}}", "**", "*_generator.rb" ]
end

lookup_paths()

# File railties/lib/rails/generators.rb, line 310
def lookup_paths # :doc:
  @lookup_paths ||= %w( rails/generators generators )
end

print_list(base, namespaces)

# File railties/lib/rails/generators.rb, line 285
def print_list(base, namespaces) # :doc:
  namespaces = namespaces.reject { |n| hidden_namespaces.include?(n) }
  super
end