Rails 4 - Updating Specific Attributes in model - ruby-on-rails

Question

I'm building a marketplace app (rails 4) where sellers can list items to sell. I have a seller profile form where users enter some details about their brand.
I'm not able to get the record to update with user inputs. The form submits without any error but the model is not updated.
Code below. Demo at http://mktdemo.herokuapp.com/seller/18 (login: test#test.com / pwd: test1234)
route:
match "/seller/:id", to: "users#sellerprofile", via: [:get, :put], as: :sellerprofile
my form:
<%= form_for(#user, url: sellerprofile_path(id: current_user.id), method: :put, html: { :class => 'edit_profile', :multipart => true }) do |f| %>
<div class="form-group">
<%= f.label :your_story %><i> (required)</i>
<%= f.text_area :profilestory, class:"form-control" %>
</div>
<div class="form-group">
<%= f.label :profile_image %><i> (required)</i>
<%= f.file_field :profileimage, class:"form-control" %>
</div>
<div class="form-group">
<%= f.submit class:"btn btn-primary" %>
</div>
<% end %>
user_controller:
def sellerprofile
#user = User.find(params[:id])
#user.update_attributes(:profilestory => params[:profilestory], :profileimage => params[:profileimage])
end
For the image, I'm using paperclip and have the has_attached... code in my model.
UPDATE:
Here is my user_params in controller:
def user_params
params.require(:user).permit(:bankaccname, :profileimage, :profilestory)
end
When I use #user.update(user_params) in the sellerprofile method, I get a params :user not found error. This error occurs when I load the form (not on submit). Error is in the line params.require(:user)
UPDATE 2:
Here is the update method. I'm using this for another form that takes in some bank account data so I'm not sure if I can modify this for the profile form.
def update
#user.attributes = user_params
Stripe.api_key = ENV["STRIPE_API_KEY"]
token = params[:stripeToken]
recipient = Stripe::Recipient.create(
:name => user_params["bankaccname"],
:type => "individual",
:bank_account => token
)
#user.recipient = recipient.id
respond_to do |format|
if #user.save
format.html { redirect_to edit_user_url, notice: 'Your account was successfully updated.' }
else
format.html { render action: 'edit' }
end
end
end

Answer 1

If you look at your question, it says:
When I use #user.update(user_params) in the sellerprofile method, I get a params :user not found error. This error occurs when I load the form (not on submit)
This line tells us that there is something wrong in the action where your form is rendered. I mean the url you hit in browsers address bar to display your form
And in your comment you told me that the url for rendering your form is /seller/:id and now lets look at your form code
<%= form_for(#user, url: sellerprofile_path(id: current_user.id), method: :put, html: { :class => 'edit_profile', :multipart => true }) do |f| %>
Notice the url used in the form? You are using the same action to render your form and then after submitting form it'll again take you to same action which is wrong. You should make two different routes. One to render your form and other one to create it. To explain it further, if you look at your code
def sellerprofile
#user = User.find(params[:id])
#user.update_attributes(user_params)
end
So when you hit /seller/:id it takes you to sellerprofile method and hence code inside your sellerprofile method fires up and it tries to update your user because of this line #user.update_attributes(user_params) but there are no user_params as you didn't submit any form so you get a params :user not found errorr
Fix:
Just make two different routes, one to render your form and another one to create your record:
match "/seller/:id/new", to: "users#sellernew", via: [:get], as: :sellernewprofile
match "/seller/:id", to: "users#sellerprofile", via: [:put], as: :sellerprofile