ruby-on-rails – 这些错误消息是什么意思？

发布时间：2020-12-17 01:49:44 所属栏目：百科来源：网络整理

导读：我在hartl rails教程的第9节中,这个def没有意义.想法？ 1) User pages index Failure/Error: visit users_path ActionView::Template::Error: wrong number of arguments (2 for 1) # ./app/helpers/users_helper.rb:3:in `gravatar_for' # ./app/views/user

我在hartl rails教程的第9节中,这个def没有意义.想法？

1) User pages index 
 Failure/Error: visit users_path
 ActionView::Template::Error:
   wrong number of arguments (2 for 1)
 # ./app/helpers/users_helper.rb:3:in `gravatar_for'
 # ./app/views/users/index.html.erb:7:in `block in _app_views_users_index_html_erb__3004047397113020476_70255017945740'
 # ./app/views/users/index.html.erb:5:in `each'
 # ./app/views/users/index.html.erb:5:in `_app_views_users_index_html_erb__3004047397113020476_70255017945740'
 # ./spec/requests/user_pages_spec.rb:12:in `block (3 levels) in <top (required)>'



2) User pages index should list each user
 Failure/Error: visit users_path
 ActionView::Template::Error:
   wrong number of arguments (2 for 1)
 # ./app/helpers/users_helper.rb:3:in `gravatar_for'
 # ./app/views/users/index.html.erb:7:in `block in _app_views_users_index_html_erb__3004047397113020476_70255017945740'
 # ./app/views/users/index.html.erb:5:in `each'
 # ./app/views/users/index.html.erb:5:in `_app_views_users_index_html_erb__3004047397113020476_70255017945740'
 # ./spec/requests/user_pages_spec.rb:12:in `block (3 levels) in <top (required)>'

解决方法

Chapter 7’s first exercise指定您扩展gravatar_for方法以包括用于包含大小的新的可选参数.你可能没有做这个练习,所以它只期望原始的1个参数而不是两个参数.完成练习,您应该通过此代码.

（编辑：李大同）

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