Using a controller action on a button click - Rails

Question

Really new to using Ruby on Rails and programming in gentle so apologies in advance if this seems very basic.

I'm working on a very simple wiki based website, where users can upgrade and downgrade their account.

In my downgrade.html.erb I have the following code:

<p>Are you sure you want to downgrade back to standard?<p>

<%= link_to "Yes", :controller => :charges, :action => :downgrade1, class: 'btn btn-danger' %>
<%= link_to "No", root_url, class: 'btn btn-success' %>

and in my charges_controller.rb I have my downgrade1 method:

def downgrade1
    if current_user.premium?
       current_user.update_attribute(:role, 'standard')
       flash[:success] = "You have been downgraded to standard."
       redirect_to root_url
    else
      false
    end
end

Ultimately, when the user clicks that 'Yes' button, I want that downgrade1 method to run and the user's account to be downgraded back to standard.

However, what happens is the website loads a 'show webpage' with my header and footer, but the user is still a premium user.

Any ideas how I can fix this?

Tommy Newbold · Accepted Answer · 2015-11-14 19:20:20Z

2

Thanks for your attempts to solve my problem, both your answers eventually led to me finding the solution.

In the end, I used this code in my view:

<%= button_to "Yes", { :controller => "charges", :action => "downgrade1"}, class: 'btn btn-danger' %>

and added this to my routes.rb

post "charges/downgrade1" => "charges#downgrade1"

Downgrading now works as planned.

Thanks again for your help.

answered Nov 14, 2015 at 19:20

Tommy Newbold

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Comments

Van Huy · Accepted Answer · 2015-11-13 18:07:47Z

1

I think the problem here is that you didn't specify the HTTP method for your link_to, like

<%= link_to "Yes", :controller => :charges, :action => :downgrade1, class: 'btn btn-danger', :method => :patch %>

By default, it will call a GET method, then nothing in your database will be changed. And make sure you have defined that method in your routes.rb

answered Nov 13, 2015 at 18:07

Van Huy

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Comments

user5178035 · Accepted Answer · 2015-11-13 17:48:08Z

0

You are missing one closing tag at the end of your if - else statement:

    else
      false
    end
end

answered Nov 13, 2015 at 17:48

user5178035

1 Comment

Tommy Newbold Over a year ago

Ah, my apologies, the end closing tag is in my code, I just missed it when copying and pasting to this question. Thank you anyway!

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