Transferring a variable from JavaScript to a Ruby session

Question

Transferring a variable from JavaScript to a Ruby session

Here is a basic input text field:

<input type="text" id="master_password" size="20" placeholder="Master Password" />
<a class="btn btn-default" id="master_submit" href="#">Submit</a>

Additionally, there is some JavaScript code in place:

$(document).ready(function() {
  $('#master_submit').click(function() {
    alert("sometext");
  });
});

The current setup triggers an alert when the submit button is clicked. The objective now is to save the content of the text field (#master_password) into session[:master_pass], as it will be utilized for decrypting passwords stored in the database. To achieve this, AJAX is likely necessary, but familiarity with it is limited. What modifications should be made to replace the alert with relevant code in the JavaScript file (or view, or controller) to store the data as a Ruby variable?

javascript ruby ajax

Answer 1

Answer №1

If you are using Ruby on Rails, one approach is to utilize JavaScript for an AJAX call to your Rails application. Then, within your Rails controller, you can manipulate the session data accordingly.

Here's an example using JavaScript (specifically jQuery):

var data = "user_input=" + encodeURIComponent($('#user_input_field').val());

$.ajax({
  url: '/my_controller/custom_action',
  data: data,
  type: 'post'
})
.done(function(response) {
  // Handle the response here
})
.fail(function(error) {
  // Handle any errors that occur
});

Within your Rails application, create a controller with the appropriate route and define the action like so:

class MyController < ApplicationController
  ...
  def custom_action
    session[:input_data] = params[:user_input]
  end
  ...
end

Answer 2

If you are using Ruby on Rails, one approach is to utilize JavaScript for an AJAX call to your Rails application. Then, within your Rails controller, you can manipulate the session data accordingly.

Here's an example using JavaScript (specifically jQuery):

var data = "user_input=" + encodeURIComponent($('#user_input_field').val());

$.ajax({
  url: '/my_controller/custom_action',
  data: data,
  type: 'post'
})
.done(function(response) {
  // Handle the response here
})
.fail(function(error) {
  // Handle any errors that occur
});

Within your Rails application, create a controller with the appropriate route and define the action like so:

class MyController < ApplicationController
  ...
  def custom_action
    session[:input_data] = params[:user_input]
  end
  ...
end

Transferring a variable from JavaScript to a Ruby session

Answer №1

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