Couldn't find User with 'id'= - ruby-on-rails

Question

I've honestly looked everywhere for a fix to this error, People have had similar problems but I can't find any that help me fix mine. I am trying to view another users profile page while being signed in as a different user. No Device, for this. I keep running into the same error that looks exactly like this.
This is my users_controller.rb,
class UsersController < ApplicationController
before_action :set_user, only: [:show, :edit, :update, :destroy]
after_action :signed_in_after_register, only: :create
def index
#users = User.all
#user = User.find(session[:user_id])
end
def dashboard
#user = User.find(session[:user_id]) unless session[:user_id] == ""
redirect_to login_path, notice: "You're not logged in" unless #user
#posts = #user.posts.order("created_at DESC").limit(3)
#comment = Comment.new
#post = Post.new
end
def newsfeed
#user = User.find(session[:user_id]) unless session[:user_id] == nil
redirect_to login_path, notice: "You're not logged in" unless #user
#posts = #user.posts.order("created_at DESC").limit(3)
end
def nav
#user = User.find(session[:user_id])
end
def posts
#user = User.find(session[:user_id])
#posts = #user.posts
end
def destroy
#user = User.find(session[:user_id]) unless session[:user_id] == ""
redirect_to login_path, notice: "You're not logged in" unless #user
end
def welcome
#user = User.find(params[:user_id]) unless session[:user_id] == ""
redirect_to login_path, notice: "You're not logged in" unless #user
end
def show
#user = User.find(params[:user_id]) unless session[:user_id] == ""
redirect_to login_path, notice: "You're not logged in" unless #user
#posts = #user.posts.order("created_at DESC").limit(3)
#comment = Comment.new
#post = Post.new
end
def new
#user = User.new
#post = Post.new(params[:post_id])
end
def edit
end
def create
#user = User.new(user_params)
respond_to do |format|
if #user.save
format.html { redirect_to dashboard_path, notice: 'User was successfully created!' }
format.json { render :profile, status: :created, location: #user }
else
format.html { render :new }
format.json { render json: #user.errors, status: :unprocessable_entity }
end
end
end
def update
respond_to do |format|
if #user.update(user_params)
format.html { redirect_to dashboard_path, notice: 'User was successfully updated.' }
format.json { render :profile, status: :ok, location: #user }
else
format.html { render :edit }
format.json { render json: #user.errors, status: :unprocessable_entity }
end
end
end
def destroy
#user.destroy
respond_to do |format|
format.html { redirect_to users_url, notice: 'User was successfully destroyed.' }
format.json { head :no_content }
end
end
private
def set_user
#user = User.find(params[:id])
end
def signed_in_after_register
session[:user_id] = #user.id
end
def user_params
params.require(:user).permit(:first_name, :last_name, :bio, :password, :password_confirmation, :email, :age, :profile_picture, :post, :body)
end
end
This is my user model user.rb,
class User < ActiveRecord::Base
has_secure_password
validates :first_name, :last_name, :email, presence: true, uniqueness: true
validates_inclusion_of :age, in: 10..100
validates :password, presence: true, length: { minimum: 4 }, allow_nil: true
has_many :posts
has_attached_file :profile_picture, :styles => { :medium => "300x300>", :thumb => "100x100>" },
:default_url => "app/assets/images/missing.png",
:path => ":rails_root/public/system/:class/:attachment/:id_partition/:style/:filename"
validates_attachment_content_type :profile_picture, :content_type => /\Aimage\/.*\Z/
end
This is my routes.rb,
Rails.application.routes.draw do
root 'welcome#welcome'
get 'login' => 'sessions#login', :as => :login
get 'dashboard' => 'users#dashboard', :as => :dashboard
post 'logging/user' => 'sessions#create'
get 'logout' => 'sessions#destroy', :as => :logout
get 'about' => 'about'
get 'newsfeed' => 'users#newsfeed'
resources :users, except: :show
get 'profile/:user_id' => 'users#show', as: :profile
resources :posts do
resources :comments
end
get 'index' => 'posts#index'
get 'register' => 'users#new', :as => :register
end
And I'm willing to post any code you may need to see to further help me with my problem. Any help is appreciated, I've been trying to fix this for 3 weeks now. Thank you in advanced!

Answer 1

Your controller is looking for "id" prior to hitting your action code, via..
before_action :set_user, only: [:show, :edit, :update, :destroy]
..which in turn is calling the "set_user" method and attempts...
User.find(params[:id])
However, your route defines the parameter as ":user_id", not ":id"...
get 'profile/:user_id' => 'users#show', as: :profile
Since you're writing your own .find query in your action, try removing ":show" from your before_action. Or alternatively you could DRY up a bit and just use ":id" everywhere to avoid confusion. :)

Answer 2

As I see here you are providing a field user_id in Params instead of id .you should send the id in the url itself.
ex: localhost:3000/user/12
Also inside your controller action use params[:id] instead of params[:user_id]