ruby on rails - How do I sort posts by category per user? -

i'm new ruby on rails , i've been working on app collectors of funko pops can login , log funko pops have. it's simple, , there few fields entering information funkos themselves; title, description , category along ability upload image of funko users home screen displays shelf, funkos on.

anyway. have functionality built in, allowing users sort home screen category, if user clicks dropdown , selects "marvel" should see marvel funko pops have. if have no funkos category of "marvel" message appears saying there no funkos in category. functionality works perfectly, when create new user , sign in, , sort category, shows of funkos in selected category but users.

i want able display funkos category, on per user basis, funkos user has entered should sortable using categories dropdown.

here code main controller:

class funkoscontroller < applicationcontroller before_action :find_funko, only:[:show, :edit, :update, :destroy]  def index     if user_signed_in? && params[:category].blank?         @funkos = funko.where(:user_id => current_user.id).all.order("created_at desc")     elsif params[:category].present?         @category_id = category.find_by(name: params[:category]).id                             @funkos = funko.where(:category_id => @category_id).order("created_at desc")     else     end end  def show end  def new     @funko = current_user.funko.build     @categories = category.all.map{ |c| [c.name, c.id]} end  def create     @funko = current_user.funko.build(funko_params)     @funko.category_id = params[:category_id]     if @funko.save         redirect_to root_path     else         render 'new'     end end  def edit     @categories = category.all.map{ |c| [c.name, c.id]} end  def update     @funko.category_id = params[:category_id]     if @funko.update(funko_params)         redirect_to funko_path(@funko)     else         render 'edit'     end end  def destroy     @funko.destroy     redirect_to root_path end  private     def funko_params         params.require(:funko).permit(:title, :description, :category_id, :funko_img)     end      def find_funko         @funko = funko.find(params[:id])     end end 

hopefully first post/question on here clear , concise enough answer i'm looking for!

thanks

tom

however when create new user , sign in, , sort category, shows of funkos in selected category users.

the problem lies here

@funkos = funko.where(:category_id => @category_id).order("created_at desc") 

you not fetching funkos per user if params[:category] present. add that, , go

@funkos = funko.where(:category_id => @category_id, :user_id => current_user.id).order("created_at desc")