What is the recommended method for writing JavaScript scripts with AJAX in a Rails application? How can URLs be incorporated into the script effectively?

Question

What is the recommended method for writing JavaScript scripts with AJAX in a Rails application? How can URLs be incorporated into the script effectively?

When incorporating AJAX into my Rails application, I encounter difficulties when specifying the URL for the request within a script. While it is recommended to use helpers like my_resource_path instead of manually writing paths, these helpers do not function properly within assets/javascripts. As a result, I have had to resort to using inefficient workarounds such as embedding code in my views:

<%= javascript_tag "onSubmitQuotePage('#{j escape_javascript(autocomplete_authors_url(''))}');"%>

Surely there must be a more elegant solution or best practice for handling AJAX requests in Rails applications.

javascript ruby-on-rails ajax ruby-on-rails-3

Answer 1

Answer №1

It would bring me great joy to discover improved methods for accomplishing this task.

One approach is to store the path in a data attribute within a relevant DOM element, or alternatively, for static routes, embed a <script> block in the layout file containing the necessary paths.

<script>
(function() {
"use strict";
window.myapp || {};
window.myapp.new_order_path = '<%= new_order_path %>';
window.myapp.orders_path = '<%= orders_path %>';
...
}());
</script>

Although not the most elegant solution, I find that the instances where I require a route in my JavaScript code are infrequent. This method allows me to access myapp.new_order_path in my JavaScript as needed.

Answer 2

It would bring me great joy to discover improved methods for accomplishing this task.

One approach is to store the path in a data attribute within a relevant DOM element, or alternatively, for static routes, embed a <script> block in the layout file containing the necessary paths.

<script>
(function() {
"use strict";
window.myapp || {};
window.myapp.new_order_path = '<%= new_order_path %>';
window.myapp.orders_path = '<%= orders_path %>';
...
}());
</script>

Although not the most elegant solution, I find that the instances where I require a route in my JavaScript code are infrequent. This method allows me to access myapp.new_order_path in my JavaScript as needed.

Answer 3

Answer №2

Adding my perspective here: leverage Rails URI helpers to create URI templates. For example, if you have a route defined as:


edit_user   GET   /users/:id/edit(.:format)   users#edit

By using edit_user_path(':user_id:'), you'll get /users/:user_id:/edit. This method allows you to generate URI templates that can be compiled in javascript. As @Tigraine mentioned, you can store this template in a data attribute of a parent element and access it from the client side.

This technique proves useful when generating URIs for AJAX-loaded content. Simply provide the resource ID and have javascript construct the URI by replacing placeholders like :user_id: with the actual user ID using

string.replace(':user_id:', user_id)

.

Answer 4

Adding my perspective here: leverage Rails URI helpers to create URI templates. For example, if you have a route defined as:


edit_user   GET   /users/:id/edit(.:format)   users#edit

By using edit_user_path(':user_id:'), you'll get /users/:user_id:/edit. This method allows you to generate URI templates that can be compiled in javascript. As @Tigraine mentioned, you can store this template in a data attribute of a parent element and access it from the client side.

This technique proves useful when generating URIs for AJAX-loaded content. Simply provide the resource ID and have javascript construct the URI by replacing placeholders like :user_id: with the actual user ID using

string.replace(':user_id:', user_id)

.

What is the recommended method for writing JavaScript scripts with AJAX in a Rails application? How can URLs be incorporated into the script effectively?

Answer №1

Answer №2

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