I am receiving this error:
ActiveRecord::RecordNotFound in MainController#compare Couldn't find
Post without an ID
Here is my code for main controller:
#job_one = Post.find(params[:j1])
#job_two = Post.find(params[:j2])
UPDATE #1:
main_controller.rb
class MainController < ApplicationController
skip_before_action :authenticate_user!
def index
#posts = Post.all.order(id: :asc)
end
def dummy
end
def editor
end
def compare
#job_one = Post.find(params[:j1])
#job_two = Post.find(params[:j2])
respond_to do |format|
format.html
format.pdf do
pdf = Prawn::Document.new
pdf.text "Hello World"
send_data pdf.render
end
end
end
end
What I am doing is comparing two posts that are made side by side. So these are the two posts I chose from the index page.
Can anyone off some assistance?
Related
I have this code, it works perfectly for me, the problem is that it does not save me in the database the first time, I must reload the page and then try again to make it work.
I can't find the error
then I am going to leave you the code of my controller so that you can give me a hand of what may be happening
class EvolutionsController < ApplicationController
before_action :load_patient
before_action :set_evolution, only: :show
before_action :verify_permission, only: %i[new show create edit update destroy]
def index
#evolutions = #patient.evolutions # You could skip this and just use #patient.evolutions in your view if you like
end
def show
end
def new
#evolution = #patient.evolutions.build
end
def create
#evolution = #patient.evolutions.build(evolution_params)
if #evolution.save
redirect_to patients_url, notice: 'La evolucion fue agregada con exito'
else
render :new
end
end
def edit
end
def destroy
#evolution = #patient.evolutions.find(params[:id])
#evolution.destroy
redirect_to patient_path(#patient)
flash[:notice] = "Evolución eliminada"
end
private
def load_patient
#patient = Patient.find(params[:patient_id])
end
def set_evolution
#evolution = #patient.evolutions.find(params[:id])
end
def verify_permission
redirect_to patients_path if !user_signed_in? || #patient.user != current_user
end
def evolution_params
params.require(:evolution).permit(:motivo, :entrevista, :patient_id)
end
end
UPDATE: I have solved the NilClass issue! Thanks!
Now I am having a problem with:
unknown attribute 'sessionId' for Room.
SOLVEDI am currently having some issues where my code is telling me I have an error of "undefined method `create_session' for nil:NilClass" on line 9. I will provide the files.
This is the specific line:
#new_room = Room.new(strong_param)
rooms_controller.rb
class RoomsController < ApplicationController
require "opentok"
before_filter :config_opentok,:except => [:index]
def index
#rooms = Room.where(:public => true).order("created_at DESC")
#new_room = Room.new
end
def create
session = #opentok.create_session :media_mode => :routed
params[:room][:sessionId] = session.session_id
#new_room = Room.new(strong_param)
respond_to do |format|
if #new_room.save
format.html { redirect_to(“/party/”+#new_room.id.to_s) }
else
format.html { render :controller => ‘rooms’, :action => “index” }
end
end
end
def party
#room = Room.find(params[:id])
#tok_token = #opentok.generate_token #room.sessionId
end
private
def config_opentok
if #opentok.nil?
#opentok = OpenTok::OpenTok.new ########, "#########################################"
end
end
def strong_param
params.require(:room).permit(:name,:sessionId)
end
end
rooms.rb (Models)
class Room < ActiveRecord::Base
end
I've tried several different modifications to these files to make my program work. I can get the listing page to work but once I try and actually create a new room, I receive this error message.
Look forward to any advice you can provide.
You are missing the before_filter :config_opentok,:except => [:index] line from the blog post in your previous post (https://railsfornovice.wordpress.com/2013/01/01/video-chatting-in-ruby-on-rails/)
Im using a gem called MetaInspector to scrape data from different websites. Im building a site where i can collect data from different sites but am having trouble setting up. I have a model called site with a title and a url both strings. When i create a new "site" the name will come out as example.com/"sitename" and in there i would like to have the data just from that site. I kinda have an idea to this by adding page = MetaInspector.new to the new method but cant see how i can set a url in there.
I can show my controller and other info if needed.
Controller
class Admin::SitesController < Admin::ApplicationController
def index
#sites = Site.all
end
def show
#site = Site.friendly.find(params[:id])
end
def edit
#site = Site.friendly.find(params[:id])
end
def update
#site = Site.friendly.find(params[:id])
if #site.update(site_params)
redirect_to admin_path
else
render :edit
end
end
def destroy
#site = Site.friendly.find(params[:id])
#site.destroy
if #site.destroy
redirect_to admin_path
end
end
def new
#site = Site.new
end
def create
#site = Site.new(site_params)
if #site.save
redirect_to admin_path
else
render :new
end
end
private
def site_params
params.require(:site).permit(:title, :url)
end
end
If I understand correct you want to show the metainfo for a Site you have added. You could put that code in the show action of the controller:
def show
#site = Site.friendly.find(params[:id])
#page = MetaInspector.new(#site.url)
end
And update the show.html.erb template to display info about #page, ie:
<%= #page.title %>
While creating a search form I am facing a problem. I am getting the following error:
undefined method `model_name' for NilClass:Class
This is my view file:
"datepicker" %>
This is my clients_controller.rb:
class ClientsController < ApplicationController
def newClients
end
end
And this is my model client.rb:
class Client < ActiveRecord::Base
# attr_accessible :title, :body
end
I am confused in using form_for parameter. Can any one explain it briefly how and why to use form_for parameter?
Edit 1
I have modified my controller as
class ClientsController < ApplicationController
def search
redirect_to root_path
end
end
Once i click submit button it showing error as
No route matches [GET] "/search"
You are missing something here. Let me explain.
In your controller you don't need to define a custom method (called newClients) since Rails conventions suggest to use the following:
class ClientsController < ApplicationController
# GET /clients
def index
#clients = Client.all
end
# GET /clients/:id
def show
#client = Client.find(params[:id])
end
# GET /clients/new
def new
#client = Client.new
end
# POST /clients
def create
#client = Client.new(params[:client])
if #client.save
redirect_to :back, success: "Successfully created..."
else
render :new
end
end
# GET /clients/:id/edit
def edit
#client = Client.find(params[:id])
end
# PUT /clients/:id
def update
#client = Client.find(params[:id])
if #client.update_attributes(params[:client])
redirect_to :back, success: "Successfully edited..."
else
render :edit
end
end
# DELETE /clients/:id
def destroy
#client = Client.find(params[:id]).destroy
redirect_to :back, success: "Successfully deleted..."
end
end
And finally, in order for your form_for to work properly, you need to pass it an instance of a class:
form_for #client
where #client is Client.new in your case.
First of all in your controller please follow Rails naming conventions. The method name should be new_clients or new.
def new
#client = Client.new
end
Your view name should be new.html.erb.
You are not defining #client in your controller, but in the view you are using it.
In my application i need to set some deafult actions for all format.js and format.htm responses. At this moment I have something like this in all controllers:
def index
#users = User.all
respond_to do |format|
format.html {html_response}
format.js {js_response}
end
end
But I think that it isn't a good solution. What can I do?
Make a private method in your ApplicationController and call it from wherever required
class ApplicationController < ActionController::Base
…
private
def default_responses
respond_to do |format|
format.html {html_response}
format.js {js_response}
end
end
end
class SomethingsController < ApplicationController
def index
#somethings = Something.all
default_responses
end
end