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link_to :confirm displays popup twice

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感情败类 2020-11-30 02:38

This tag with rails 3

<%= link_to \'Destroy\', item, :method => :delete,:confirm=>\'Are you sure?\' %>

produces this html

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16条回答
  • 闹比i
    2020-11-30 03:17

    This seem to be a bug in Rails. Apparently directives in application.js are not only expanded into individual files when debug mode is enabled, but they are also included in application.js. I haven't looked at the Rails code for this but assume it is due to application.js being the default JavaScript file. If you rename this file to something else, lets say default.js it will in debug mode correctly include the files specified by the directive and default.js will only output JavaScript which is only in that file. Thus not generating duplicate code.

    Example:

    application.js

    //= require jquery_ujs

    foo();

    Results in:

    1) jquery_ujs.js

    2) application.js with jquery_ujs contents and foo()

    default.js

    //= require jquery_ujs

    foo();

    Results in:

    1) jquery_ujs.js

    2) default.js with foo()

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  • 陌清茗
    2020-11-30 03:18

    I've been used to include the javascript_include_tag at the bottom of my haml-layout-file.

    With Rails4 and Turbolinks it happens that:

    • Everything ok on the first load of a page (popup for confirmation appears only once)
    • Visiting another page -> popup occurs twice
    • Visiting one more page -> popup occurs three times
    • and so on
    • until I reload the page.

    I solved the problem by moving the javascript_include_tag from the bottom into <head>

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  • 既然无缘
    2020-11-30 03:19

    I was having this same issue, and spent the better part of an hour looking into it. I found a solution in my situation, and I figured I would share it in case it helps...

    My problem was that I had 

    config.assets.debug = true

    in config/environments/development.rb

    Changing that line to 

    config.assets.debug = false

    fixed the confirmation duplication for me. I found the relevant information in this rails guide to asset pipeline. Hope it helps!

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  • 误落风尘
    2020-11-30 03:19

    I copy this solution from another post, but this is what worked for me (rails 5)

    "remove jquery_ujs from your application.js as rails_ujs is enough for later rails version."

    I had included: //= require jquery //= require jquery-ujs //= require rails-ujs

    and after deleting it, all works fine. Solution from: Why am I getting a JQuery alert twice in Rails?

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  • 小蘑菇
    2020-11-30 03:21

    Delete:

    //= require jquery
//= require jquery_ujs
//= require_tree .

    from app/assets/javascripts/application.js. Despite of been commented it loads these js files. It works for me.

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  • 执笔经年
    2020-11-30 03:22

    Try to run either

    rake assets:precompile ENV=development

    or 

    rake assets:precompile ENV=production
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