hi all,
how do i access hidden value fields from the controller class.
my hidden value field is
<input id="user_id" name="user.id" size="30" type="text" value="<%= @user.id %>" />
currently i am trying to access with @user.id , @user = User.find(@user.id) but its generating error like
" Called id for nil, which would mistakenly be 4 -- if you really wanted the id of nil, use object_id "
then how do i access the above hidden value
thank in advance, Mahesh
You need to change the name of your field to user_id to be more traditional.
You access any POST/GET data with the params hash.
# your controller
params[:user_id]
# => "field_value
Two quick notes. I'd avoid depending on the user_id as submitted by a form, it's easy to forge. It's better to pull it from your authentication in the controller create, update, or delete method.
Second, I'd look into form helpers, such as hidden_field within a form_for or a fields_for.
<% form_form @some_model do %>
<%= f.hidden_field(:some_field_on_the_model) %>
<%= hidden_field(:some_model, :some_field) %>
Then you use the previously detailed params hash to pull out the values back in the controller.
mymodel = MyModel.find(params[:some_field])