Question

I just wanted to know if there is any method available to update a record of a table from a view? For example am I able to delete a record from the table using the code below?

<td><%= link_to 'Delete', my_path(user), :confirm => 'Are you sure?', :method =>:delete, :remote=>true %></td>

And in my controller I have:

def destroy
  @user = User.find(params[:id])
  @user.destroy

  respond_to do |format|
    format.js do
      render(:update) { |page| page.reload }
    end
  end
end

The above code works perfectly. It deletes the record from the table and also reloads the page after clicking the destroy link. Now, my question is: can I do the same for updating a value in my record? If so, how can I do that?

Answer 1

Sure you can, you would simply change a few things:

The method in your controller would be update:

def update
  @user = User.find(params[:id])
  @user.update_attributes(params[:user])

  respond_to do |format|
    format.js do
      render(:update) { |page| page.reload }
    end
  emd
end

Then you would change your link to something like the following:

<td><%= link_to "Update", my_path(user), :method => :put, :remote => true %></td>

Mind you, this is under the presumption that you are in a form_for @user tag.

<%= form_for @user do |f| %>
  <%= f.text_field :name %>
  # aforementioned link to update goes here
<% end %>

This is under the impression that you setup @user in the controller method (most likely def edit)

def edit
  @user = User.find(params[:id])
end