I am pretty new to Ruby and I am working on a hangman game .

What I am trying to do is create a new game when the user simply click on a button and I want that "click" to redirect to the show of that game.

Here are my models :

class Game < ApplicationRecord

  has_many :guesses

end

class Guess < ApplicationRecord
  belongs_to :game
end

Here are my controllers :

class GamesController < ApplicationController
  skip_before_action :authenticate_user!

  def index
    @games = Game.all
  end

  def create
    @game = Game.new(game_params)
    @game.save!
    redirect_to game_path(@game)
  end

  def show
    @game = Game.new
    @game = Game.last
  end

  def destroy
    @game = Game.find(params[:id])
    @game.destroy
    redirect_to home_path
  end

  private

  words =[
    "spokesperson", "firefighter", "headquarters", "confession", "difficulty", "attachment", "mechanical",
    "accumulation", "hypothesis", "systematic", "attraction", "distribute", "dependence", "environment",
    "jurisdiction", "demonstrator", "constitution", "constraint", "consumption", "presidency", "incredible",
    "miscarriage", "foundation", "photography", "constituency", "experienced", "background", "obligation",
    "diplomatic", "discrimination", "entertainment", "grandmother", "girlfriend", "conversation", "convulsion",
    "constellation", "leadership", "insistence", "projection", "transparent", "researcher", "reasonable","continental",
    "excavation", "opposition", "interactive", "pedestrian", "announcement", "charismatic", "strikebreaker",
    "resolution", "professional", "commemorate", "disability", "collection", "cooperation", "embarrassment",
    "contradiction", "unpleasant", "retirement", "conscience", "satisfaction", "acquaintance", "expression",
    "difference", "unfortunate", "accountant", "information", "fastidious", "conglomerate", "shareholder",
    "accessible", "advertising", "battlefield", "laboratory", "manufacturer", "acquisition", "operational",
    "expenditure", "fashionable", "allocation", "complication", "censorship", "population", "withdrawal",
    "sensitivity", "exaggerate", "transmission", "philosophy", "memorandum", "superintendent", "responsibility",
    "extraterrestrial", "hypothesize", "ghostwriter", "representative", "rehabilitation", "disappointment",
    "understanding", "supplementary", "preoccupation"
 ]

  @word_to_guess = words.sample
  @health_bar = 5
  @game_status = "Game not started yet"

  def game_params
    params.require(:game).permit(@word_to_guess, @health_bar, @game_status)
  end

end

Here is what I have been trying to do

<%= link_to "nouvelle partie", game_path(game), method: :create %>

but the errors message is : "undefined local variable or method `game' for #ActionView::Base:0x0000000000d4d0"

CodePudding user response：

POST method won't work with link_to. Try using the to button_to instead of link_to like this:

<%= button_to "nouvelle partie", game_path(game), method: :post %>

I think the bug is due to the variable game not being passed to partial. You have to pass it on like this:

<%= render "game", game: @game %>

And you don't have to pass variables in game_params. You only need to set them in the show method where you will be redirected from the create method. Also, you don't set the current game like this Game.last, you just take id which is contained in the url.

def create
  @game = Game.new
  @game.save!
  redirect_to game_path(@game)
end

def show
  @game = Game.find(params[:id])
  @word_to_guess = words.sample
  @health_bar = 5
  @game_status = "Game not started yet"
end

CodePudding user response：

have you tried?

<%= link_to "nouvelle partie", game_path(@game), method: :create %>