haml

问题 I have a User Model and an Instructor Model. There is a one-to-one relationship between user and instructor. And some users will be instructors and some will not. As such I have a registration form that uses a fields_for method to write to both. How can I write to the instructor table only on the condition that they say they are an instructor, such as through a checkbox. And when they do write I want to maintain my validations of the table along with the rest of the form Ideally this would

问题 I have a User Model and an Instructor Model. There is a one-to-one relationship between user and instructor. And some users will be instructors and some will not. As such I have a registration form that uses a fields_for method to write to both. How can I write to the instructor table only on the condition that they say they are an instructor, such as through a checkbox. And when they do write I want to maintain my validations of the table along with the rest of the form Ideally this would

问题 This is the code of 'shared/subnav' partial. When i click on a link it shows error No route matches {:action=>"show", :controller=>"location"} but routes are defined. i think there is some problem in below code. -if current_page? location_path = link_to 'Edit Location', edit_location_path -if current_page? user_path = link_to 'Edit User', edit_user_path -if current_page? alert_path = link_to 'Edit Alert', edit_alert_path Here are my routes location GET /locations/:id(.:format) locations#show

问题 I want to convert the following code to HAML to handle Bootstrap's alert messages in a Rails 4.2.2 application. I've tried manually, using html2haml and online converters and the code I get never works. The code: <div class="alert <%= case type.to_sym when :alert, :danger, :error, :validation_errors 'alert-danger' when :warning, :todo 'alert-warning' when :notice, :success 'alert-success' else 'alert-info' end %> alert-dismissible" role="alert"> <button type="button" class="close" data

问题 When I start the application crashes following error /home/stereodenis/.rvm/gems/ruby-1.9.3-p194@nyanya/gems/haml-3.1.6/lib/haml/helpers/action_view_mods.rb:15:in `alias_method': undefined method `render' for class `ActionView::Base' (NameError) What maybe wrong? full trace https://gist.github.com/5e3244d488068c9d0ba7 回答1: If you are using a render inside a helper you have to include the functionality! include AbstractController::Rendering Hope it helps 来源： https://stackoverflow.com/questions

问题 I'm using Haml in a Rails 3 app, and its newlines drive me nuts! For example, %span foo renders as <span> foo </span> But I'd much rather want <span>foo</foo> The reason (apart from being cleaner XML) is that extra newlines are a problem for my Selenium tests because they mess up the ability to do XPath queries like "//span[.='foo']" . So I'd have to write '\nfoo\n' instead (ew!), or use //span[contains(text(), 'foo')] , which matches too broadly. I know I could use the alligator operators ("

问题 I am using bootstrap icons in my project which gives me error Subresource Integrity: The resource 'http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css' has an integrity attribute, but the resource requires the request to be CORS enabled to check the integrity, and it is not. The resource has been blocked because the integrity cannot be enforced. Can any one help me to solve this issue and when we move to production the icon is not loaded. So I am using below link for

问题 I am using bootstrap icons in my project which gives me error Subresource Integrity: The resource 'http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css' has an integrity attribute, but the resource requires the request to be CORS enabled to check the integrity, and it is not. The resource has been blocked because the integrity cannot be enforced. Can any one help me to solve this issue and when we move to production the icon is not loaded. So I am using below link for

问题 In rails 3.0 with HAML (3.1.4) I have some template-like partial , like _template.html.haml: .panel.top = yield :panel_top .content = yield some another partial which will be displayed using prev template (all this stuff is rendered using AJAX, but this doesn't matter) - content_for :panel_top do .title.left = title content text and this worked like a charm in Rails 3.0 But, after upgrade to 3.2 this fails! Yiels just yields "content text", so I have "content text" twice and no title at all

问题 My rails version is 3.2.12 . I am trying to implement gem "joyride-rails", "~> 0.0.14" in my application, but it clashes with some of my other gems. Already in my Gemfile: gem "haml-rails", ">= 0.4" gem 'activeadmin-mongoid', github: 'elia/activeadmin-mongoid', branch: 'active-admin-spec-suite' When I run the bundle command, I get this error: Bundler could not find compatible versions for gem "haml": In Gemfile: joyride-rails (~> 0.0.14) ruby depends on haml (~> 3.1) ruby haml-rails (>= 0.4)