Flash 消息语法错误，意外的输入结束，期待“结束”

Question

i use haml and i want to use flash messsages but i have a syntax error, when create the partial _messages.html.haml and rendering in the devise.html.haml i have this error:

ActionView::SyntaxErrorInTemplate in Devise::SessionsController#new

Encountered a syntax error while rendering template: check - flash.each do |name, msg| - if msg.is_a?(String) %br %div{:class => "alert alert-#{name.to_s == 'notice'? 'success': 'danger'}"} %button.close{"aria-hidden" => "true", "data-dismiss" => "alert", :type => "button"} × = content_tag:div, msg, :id => "flash_#{name}"

Extracted source (around line #8):

    6 = content_tag :div, msg, :id => "flash_#{name}"

Rails.root: /organizator Application Trace | Framework Trace | Full Trace app/views/layouts/_messages.html.haml:8: syntax error, unexpected end-of-input, expecting end' app/views/layouts/_messages.html.haml:8: syntax error, unexpected end-of-input, expecting end'

app/views/layouts/_messages.html.haml:8: syntax error, unexpected end-of-input, expecting end' app/views/layouts/_messages.html.haml:8: syntax error, unexpected end-of-input, expecting end'

app/views/layouts/_messages.html.haml:8: syntax error, unexpected end-of-input, expecting end' app/views/layouts/_messages.html.haml:8: syntax error, unexpected end-of-input, expecting end'

app/views/layouts/devise.html.haml:13

Exception Causes SyntaxError: /organizator/app/views/layouts/_messages.html.haml:8: syntax error, unexpected end-of-input, expecting `end'

in the terminal i have this:

ActionView::SyntaxErrorInTemplate (Encountered a syntax error while rendering template: check - flash.each do |name, msg|

• if msg.is_a?(String) %br %div{:class => "alert alert-#{name.to_s == 'notice'? 'success': 'danger'}"} %button.close{"aria-hidden" => "true", "data-dismiss" => "alert", :type => "button"} × = content_tag:div, msg, :id => "flash_#{name}" ): 1: - flash.each do |name, msg| 2: - if msg.is_a?(String) 3: %br 4:
  %div{:class => "alert alert-#{name.to_s == 'notice'? 'success': 'danger'}"} 5: %button.close{"aria-hidden" => "true", "data-dismiss" => "alert", :type => "button"} × 6: = content_tag:div, msg, :id => "flash_#{name}"

app/views/layouts/_messages.html.haml:8: syntax error, unexpected end-of-input, expecting end' app/views/layouts/_messages.html.haml:8: syntax error, unexpected end-of-input, expecting end' app/views/layouts/_messages.html.haml:8: syntax error, unexpected end-of-input, expecting end' app/views/layouts/_messages.html.haml:8: syntax error, unexpected end-of-input, expecting end' app/views/layouts/_messages.html.haml:8: syntax error, unexpected end-of-input, expecting end' app/views/layouts/_messages.html.haml:8: syntax error, unexpected end-of-input, expecting end' app/views/layouts/devise.html.haml:13

My devise template devise.html.haml app/views/layouts/devise.html.haml

!!!
%html
    %head
        %meta{:content => "text/html; charset=UTF-8", "http-equiv" => "Content-Type"}/
        %title Tasker
        = csrf_meta_tags
        = csp_meta_tag
        = javascript_pack_tag 'application', 'data-turbolinks-track': 'reload'
        = stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload'
    %body
        .container
            .main-flash-messages
                = render 'layouts/messages'
        .fullscreen
            .container
                = yield

My partial _messages.html.haml app/views/layouts/_messages.html.haml

- flash.each do |name, msg|
    - if msg.is_a?(String)
    %br
    %div{:class => "alert alert-#{name.to_s == 'notice' ? 'success' : 'danger'}"}
        %button.close{"aria-hidden" => "true", "data-dismiss" => "alert", :type => "button"} ×
        = content_tag :div, msg, :id => "flash_#{name}"

I tryed to solve this reading the documentation of haml but i don't know what is wrong. Regards.

Answer 1

I am not familiar with HAML but I expect that the content that depends on the if condition needs to be indented and would therefore try:

- flash.each do |name, msg|
  - if msg.is_a?(String)
    %br
    %div{:class => "alert alert-#{name.to_s == 'notice' ? 'success' : 'danger'}"}
      %button.close{"aria-hidden" => "true", "data-dismiss" => "alert", :type => "button"} ×
      = content_tag :div, msg, :id => "flash_#{name}"