Rails (5.2.2) AJAX call for partial not working





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3















Short and sweet, I have followed this guide exactly on a fresh rails deployment (5.2.2), using rails g scaffold thing to generate the app.



However, after making the partial _show.html.erb under the paragraph Targeted Changes in the guide, clicking the "Change below" link_to does not render the partial when testing. I get no error message, and Rails tells me that everything is rendered OK, but nothing happens on the site when I click the link.



What am I missing?





Code:



controllers/things_controller



class ThingsController < ApplicationController

def index
@things = Thing.all
end

def show
end

end


config/routes.rb



Rails.application.routes.draw do
root 'things#index'
resources :things
end


things/index.html.erb



<%# /app/views/things/index.html.erb %>
<%= link_to 'Change Below', thing_path(42), remote: true %>

<div id="target-for-change">
Now you see "ME"!
</div>


things/show.js.erb



<%# /app/views/things/show.js.erb %>
$("#target-for-change").html("<%= j render(partial: 'show') %>");


things/_show.html.erb



<%# /app/views/things/_show.html.erb %>
Now you don't!




Browser Console output:



Uncaught ReferenceError: $ is not defined
at <anonymous>:1:1
at processResponse (rails-ujs.self-d109d8c5c0194c8ad60b8838b2661c5596b5c955987f7cd4045eb2fb90ca5343.js?body=1:268)
at rails-ujs.self-d109d8c5c0194c8ad60b8838b2661c5596b5c955987f7cd4045eb2fb90ca5343.js?body=1:196
at XMLHttpRequest.xhr.onreadystatechange (rails-ujs.self-d109d8c5c0194c8ad60b8838b2661c5596b5c955987f7cd4045eb2fb90ca5343.js?body=1:251)









share|improve this question




















  • 2





    What's the response browser console?

    – Talha Junaid
    Jan 3 at 10:29











  • are you using turbolinks? If yes then try after removing turbolinks

    – G.B
    Jan 3 at 11:35











  • @TalhaJunaid, I've added the Browser Console output.

    – tmo
    Jan 3 at 14:22











  • @G.B, removing turbolinks does not solve it, same behaviour.

    – tmo
    Jan 3 at 14:22











  • @tmo I have added the answer, please view this

    – Talha Junaid
    Jan 3 at 14:30


















3















Short and sweet, I have followed this guide exactly on a fresh rails deployment (5.2.2), using rails g scaffold thing to generate the app.



However, after making the partial _show.html.erb under the paragraph Targeted Changes in the guide, clicking the "Change below" link_to does not render the partial when testing. I get no error message, and Rails tells me that everything is rendered OK, but nothing happens on the site when I click the link.



What am I missing?





Code:



controllers/things_controller



class ThingsController < ApplicationController

def index
@things = Thing.all
end

def show
end

end


config/routes.rb



Rails.application.routes.draw do
root 'things#index'
resources :things
end


things/index.html.erb



<%# /app/views/things/index.html.erb %>
<%= link_to 'Change Below', thing_path(42), remote: true %>

<div id="target-for-change">
Now you see "ME"!
</div>


things/show.js.erb



<%# /app/views/things/show.js.erb %>
$("#target-for-change").html("<%= j render(partial: 'show') %>");


things/_show.html.erb



<%# /app/views/things/_show.html.erb %>
Now you don't!




Browser Console output:



Uncaught ReferenceError: $ is not defined
at <anonymous>:1:1
at processResponse (rails-ujs.self-d109d8c5c0194c8ad60b8838b2661c5596b5c955987f7cd4045eb2fb90ca5343.js?body=1:268)
at rails-ujs.self-d109d8c5c0194c8ad60b8838b2661c5596b5c955987f7cd4045eb2fb90ca5343.js?body=1:196
at XMLHttpRequest.xhr.onreadystatechange (rails-ujs.self-d109d8c5c0194c8ad60b8838b2661c5596b5c955987f7cd4045eb2fb90ca5343.js?body=1:251)









share|improve this question




















  • 2





    What's the response browser console?

    – Talha Junaid
    Jan 3 at 10:29











  • are you using turbolinks? If yes then try after removing turbolinks

    – G.B
    Jan 3 at 11:35











  • @TalhaJunaid, I've added the Browser Console output.

    – tmo
    Jan 3 at 14:22











  • @G.B, removing turbolinks does not solve it, same behaviour.

    – tmo
    Jan 3 at 14:22











  • @tmo I have added the answer, please view this

    – Talha Junaid
    Jan 3 at 14:30














3












3








3








Short and sweet, I have followed this guide exactly on a fresh rails deployment (5.2.2), using rails g scaffold thing to generate the app.



However, after making the partial _show.html.erb under the paragraph Targeted Changes in the guide, clicking the "Change below" link_to does not render the partial when testing. I get no error message, and Rails tells me that everything is rendered OK, but nothing happens on the site when I click the link.



What am I missing?





Code:



controllers/things_controller



class ThingsController < ApplicationController

def index
@things = Thing.all
end

def show
end

end


config/routes.rb



Rails.application.routes.draw do
root 'things#index'
resources :things
end


things/index.html.erb



<%# /app/views/things/index.html.erb %>
<%= link_to 'Change Below', thing_path(42), remote: true %>

<div id="target-for-change">
Now you see "ME"!
</div>


things/show.js.erb



<%# /app/views/things/show.js.erb %>
$("#target-for-change").html("<%= j render(partial: 'show') %>");


things/_show.html.erb



<%# /app/views/things/_show.html.erb %>
Now you don't!




Browser Console output:



Uncaught ReferenceError: $ is not defined
at <anonymous>:1:1
at processResponse (rails-ujs.self-d109d8c5c0194c8ad60b8838b2661c5596b5c955987f7cd4045eb2fb90ca5343.js?body=1:268)
at rails-ujs.self-d109d8c5c0194c8ad60b8838b2661c5596b5c955987f7cd4045eb2fb90ca5343.js?body=1:196
at XMLHttpRequest.xhr.onreadystatechange (rails-ujs.self-d109d8c5c0194c8ad60b8838b2661c5596b5c955987f7cd4045eb2fb90ca5343.js?body=1:251)









share|improve this question
















Short and sweet, I have followed this guide exactly on a fresh rails deployment (5.2.2), using rails g scaffold thing to generate the app.



However, after making the partial _show.html.erb under the paragraph Targeted Changes in the guide, clicking the "Change below" link_to does not render the partial when testing. I get no error message, and Rails tells me that everything is rendered OK, but nothing happens on the site when I click the link.



What am I missing?





Code:



controllers/things_controller



class ThingsController < ApplicationController

def index
@things = Thing.all
end

def show
end

end


config/routes.rb



Rails.application.routes.draw do
root 'things#index'
resources :things
end


things/index.html.erb



<%# /app/views/things/index.html.erb %>
<%= link_to 'Change Below', thing_path(42), remote: true %>

<div id="target-for-change">
Now you see "ME"!
</div>


things/show.js.erb



<%# /app/views/things/show.js.erb %>
$("#target-for-change").html("<%= j render(partial: 'show') %>");


things/_show.html.erb



<%# /app/views/things/_show.html.erb %>
Now you don't!




Browser Console output:



Uncaught ReferenceError: $ is not defined
at <anonymous>:1:1
at processResponse (rails-ujs.self-d109d8c5c0194c8ad60b8838b2661c5596b5c955987f7cd4045eb2fb90ca5343.js?body=1:268)
at rails-ujs.self-d109d8c5c0194c8ad60b8838b2661c5596b5c955987f7cd4045eb2fb90ca5343.js?body=1:196
at XMLHttpRequest.xhr.onreadystatechange (rails-ujs.self-d109d8c5c0194c8ad60b8838b2661c5596b5c955987f7cd4045eb2fb90ca5343.js?body=1:251)






ruby-on-rails ajax ruby-on-rails-5 partial-views






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 3 at 14:17







tmo

















asked Jan 3 at 9:47









tmotmo

453622




453622








  • 2





    What's the response browser console?

    – Talha Junaid
    Jan 3 at 10:29











  • are you using turbolinks? If yes then try after removing turbolinks

    – G.B
    Jan 3 at 11:35











  • @TalhaJunaid, I've added the Browser Console output.

    – tmo
    Jan 3 at 14:22











  • @G.B, removing turbolinks does not solve it, same behaviour.

    – tmo
    Jan 3 at 14:22











  • @tmo I have added the answer, please view this

    – Talha Junaid
    Jan 3 at 14:30














  • 2





    What's the response browser console?

    – Talha Junaid
    Jan 3 at 10:29











  • are you using turbolinks? If yes then try after removing turbolinks

    – G.B
    Jan 3 at 11:35











  • @TalhaJunaid, I've added the Browser Console output.

    – tmo
    Jan 3 at 14:22











  • @G.B, removing turbolinks does not solve it, same behaviour.

    – tmo
    Jan 3 at 14:22











  • @tmo I have added the answer, please view this

    – Talha Junaid
    Jan 3 at 14:30








2




2





What's the response browser console?

– Talha Junaid
Jan 3 at 10:29





What's the response browser console?

– Talha Junaid
Jan 3 at 10:29













are you using turbolinks? If yes then try after removing turbolinks

– G.B
Jan 3 at 11:35





are you using turbolinks? If yes then try after removing turbolinks

– G.B
Jan 3 at 11:35













@TalhaJunaid, I've added the Browser Console output.

– tmo
Jan 3 at 14:22





@TalhaJunaid, I've added the Browser Console output.

– tmo
Jan 3 at 14:22













@G.B, removing turbolinks does not solve it, same behaviour.

– tmo
Jan 3 at 14:22





@G.B, removing turbolinks does not solve it, same behaviour.

– tmo
Jan 3 at 14:22













@tmo I have added the answer, please view this

– Talha Junaid
Jan 3 at 14:30





@tmo I have added the answer, please view this

– Talha Junaid
Jan 3 at 14:30












2 Answers
2






active

oldest

votes


















0














As you can see on your console output, '$' is not defined. '$' is the common alias for jQuery so when you do:



$("#target-for-change").html("<%= j render(partial: 'show') %>");


you are telling jQuery to find a certain identifier. The thing is that you did not include the library in your project. A way to do it is by adding this line in your gemfile:



gem 'jquery-rails'


and then this in your assets/javascripts/application.js



//= require jquery3





share|improve this answer
























  • Hi Rodrigo, and welcome so SO. I just read that jquery was discontinued in 5.1, so that must be it.

    – tmo
    Jan 4 at 8:12



















0














You need to add the jquery in your project. Add this line to application.html.erb



<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>


Or you can use the gem jquery-rails






share|improve this answer
























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    2 Answers
    2






    active

    oldest

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    2 Answers
    2






    active

    oldest

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    active

    oldest

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    active

    oldest

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    0














    As you can see on your console output, '$' is not defined. '$' is the common alias for jQuery so when you do:



    $("#target-for-change").html("<%= j render(partial: 'show') %>");


    you are telling jQuery to find a certain identifier. The thing is that you did not include the library in your project. A way to do it is by adding this line in your gemfile:



    gem 'jquery-rails'


    and then this in your assets/javascripts/application.js



    //= require jquery3





    share|improve this answer
























    • Hi Rodrigo, and welcome so SO. I just read that jquery was discontinued in 5.1, so that must be it.

      – tmo
      Jan 4 at 8:12
















    0














    As you can see on your console output, '$' is not defined. '$' is the common alias for jQuery so when you do:



    $("#target-for-change").html("<%= j render(partial: 'show') %>");


    you are telling jQuery to find a certain identifier. The thing is that you did not include the library in your project. A way to do it is by adding this line in your gemfile:



    gem 'jquery-rails'


    and then this in your assets/javascripts/application.js



    //= require jquery3





    share|improve this answer
























    • Hi Rodrigo, and welcome so SO. I just read that jquery was discontinued in 5.1, so that must be it.

      – tmo
      Jan 4 at 8:12














    0












    0








    0







    As you can see on your console output, '$' is not defined. '$' is the common alias for jQuery so when you do:



    $("#target-for-change").html("<%= j render(partial: 'show') %>");


    you are telling jQuery to find a certain identifier. The thing is that you did not include the library in your project. A way to do it is by adding this line in your gemfile:



    gem 'jquery-rails'


    and then this in your assets/javascripts/application.js



    //= require jquery3





    share|improve this answer













    As you can see on your console output, '$' is not defined. '$' is the common alias for jQuery so when you do:



    $("#target-for-change").html("<%= j render(partial: 'show') %>");


    you are telling jQuery to find a certain identifier. The thing is that you did not include the library in your project. A way to do it is by adding this line in your gemfile:



    gem 'jquery-rails'


    and then this in your assets/javascripts/application.js



    //= require jquery3






    share|improve this answer












    share|improve this answer



    share|improve this answer










    answered Jan 3 at 14:48









    Rodrigo EcheconeaRodrigo Echeconea

    963




    963













    • Hi Rodrigo, and welcome so SO. I just read that jquery was discontinued in 5.1, so that must be it.

      – tmo
      Jan 4 at 8:12



















    • Hi Rodrigo, and welcome so SO. I just read that jquery was discontinued in 5.1, so that must be it.

      – tmo
      Jan 4 at 8:12

















    Hi Rodrigo, and welcome so SO. I just read that jquery was discontinued in 5.1, so that must be it.

    – tmo
    Jan 4 at 8:12





    Hi Rodrigo, and welcome so SO. I just read that jquery was discontinued in 5.1, so that must be it.

    – tmo
    Jan 4 at 8:12













    0














    You need to add the jquery in your project. Add this line to application.html.erb



    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>


    Or you can use the gem jquery-rails






    share|improve this answer




























      0














      You need to add the jquery in your project. Add this line to application.html.erb



      <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>


      Or you can use the gem jquery-rails






      share|improve this answer


























        0












        0








        0







        You need to add the jquery in your project. Add this line to application.html.erb



        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>


        Or you can use the gem jquery-rails






        share|improve this answer













        You need to add the jquery in your project. Add this line to application.html.erb



        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>


        Or you can use the gem jquery-rails







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jan 3 at 14:27









        Talha JunaidTalha Junaid

        230210




        230210






























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