I am trying to get my customized home page to appear instead of the Welcome Aboard You're Riding Ruby on Rails default page. In my config/routes.rb file I have the line root :to => 'pages#home' to let it load the pages/home.html.erb file, and I removed public/index.html as instructed in the comments of the routes.rb file. All the other web pages which I used the syntax match "/page_name", :to => "pages#page_name" are working fine. What more do I need to do to update my home page?
EDIT:
Someone asked me to post my pages controller. Here it is:
class PagesController < ApplicationController
def home
#title = "Home"
end
def contact
#title = "Contact"
end
def about
#title = "About"
end
def help
#title = "Help"
end
end
The #title variable is referred to in my .html.erb files, but otherwise my controller is pretty much empty.
Have you tried restarting the server after deleting index.html? Did you clear your browser cache?
Do you have a PagesController?
rails generate controller pages home
The syntax I use (Rails 2.3) is:
map.root :controller => "welcome"
That goes to the :index method. If you want to go to :home, I presume you would add :action.
Related
I want to implement Facebook login for web apps. All I need is the basic public information of a user for the account creation steps.
This is what I have done:
Created a basic Facebook app with nearly no custom permissions.
Used the APP_ID and APP_SECRET in Koala to get access_token.
Everything worked perfectly, I am able to login/logout.
Just that the only information I am able to get back when I do: graph.get_object('me') is the logged in user's name and an id (It doesn't look like the default Facebook id).
Surprised whether something changed in the new API, I tested the gem in the console using the access_token from graph explorer (where all permissions are enabled by default). And I get all data using the same method call.
When I review what all the app gets while signing up; I see that the user's basic information, profile pic and other public data will be accessible to the app.
Any idea why this is so? It seems I am missing something obvious. The code is available in Github. But this is pretty much everything to it:
require 'bundler'
Bundler.require :default
Dotenv.load '.env'
require_relative './app/constants.rb'
module Banana
class App < Sinatra::Base
use Rack::Session::Cookie, secret: COOKIE_SECRET
set :public_folder, File.dirname(__FILE__) + '/bower_components'
get '/' do
if logged_in?
haml :welcome_in, layout: :layout
else
haml :log_in, layout: :layout
end
end
get '/log_out' do
session['oauth'] = nil
session['access_token'] = nil
redirect '/'
end
get '/log_in' do
session['oauth'] = Koala::Facebook::OAuth.new(APP_ID, APP_SECRET, "#{request.base_url}/call_back")
redirect session['oauth'].url_for_oauth_code()
end
get '/call_back' do
begin
session['access_token'] = session['oauth'].get_access_token(params[:code])
rescue
redirect '/?error=user_denied'
end
redirect '/'
end
get '/test' do
if logged_in?
p graph.get_object("rakeshbs")
"e"
else
redirect '/'
end
end
def logged_in?
!session['access_token'].nil?
end
def toggle_access
logged_in? ? '/log_out' : '/log_in'
end
def graph
#graph ||= Koala::Facebook::API.new(session['access_token'])
end
def errored?
!params["error"].nil?
end
def user
p graph.get_connections(:me, :photos) # This is just nil
#user ||= OpenStruct.new(
name: graph.get_object("me")["name"], # All I get here is just a hash with the name and an id!
photo: 'http://semantic-ui.com/images/avatar/small/elliot.jpg'
)
end
end
end
You should add fields parameter.
Something like this:
graph.get_object('me', { fields: 'id,first_name,last_name,gender,birthday,photos,email' })
I'd like to create a simple experimental MVC framework using Sinatra.
I'd like to define resources by name "pages" for example should resolve to:
/pages (index)
/pages/new
/pages/:id/show (show)
as WELL as map to app/controllers/PagesController.rb with corresponding get('/') to be responsible for the index, post('/pages/create') be responsible for creation, etc.
Trouble is even after reading the official documentation I'm terribly confused. I imagine I need to use non-classic Sinatra model for this, but could anyone point me in the right direction?
Thank you
If you want what I think you're wanting, I do this all the time. Initially for this scheme I used the travis-api source as a reference, but essentially what you want to do is extend Sinatra::Base in a "controller" class and then mount up your individual Sinatra "controllers" in rack, something like this:
module Endpoint
def self.included(base)
base.class_eval do
set(:prefix) { "/" << name[/[^:]+$/].downcase }
end
end
end
class Users < Sinatra::Base
include Endpoint
get '/' do
#logic here
end
get '/:id' do
#logic here
end
post '/' do
#logic here
end
patch '/:id' do
#logic here
end
end
class Posts < Sinatra::Base
include Endpoint
post '/' do
#logic here
end
end
and then something like this:
class App
require "lib/endpoints/users"
require "lib/endpoints/posts"
attr_reader :app
def initialize
#app = Rack::Builder.app do
[Users, Posts].each do |e|
map(e.prefix) { run(e.new) }
end
end
end
def call(env)
app.call(env)
end
end
You can adjust this to whatever you need, but the idea is the same, you separate your app into composable Sinatra applications that each have a prefix that they are mounted under using Rack. This particular example will give you routes for:
get '/users'
get '/users/:id'
post '/users'
patch '/users/:id'
get '/posts'
I'll give you a very simple example here:
Create a file controller.rb
get '/pages' do
#pages = Pages.all
erb :pages
end
Next create a views directory in the same folder as teh controller, and create a file named pages.html.erb
This is the corresponding view to your previously created controller action.
Here, you can type something like:
<% #pages.each do |p| %>
<%= p.title %>
<% end %>
Restart your server, visit localhost:PORT/pages and you will see a list of all your page titles.
You can check out this link for a simple sinatra tutorial - http://code.tutsplus.com/tutorials/singing-with-sinatra--net-18965
You can make this as complicated or as simple as you need. For example:
Rails makes a lot of magic happen under the hood, whereas Sinatra is more flexible at the cost of requiring you to implement some of this stuff yourself.
controller_map = {
'pages' => PagesController
}
post '/:controller/new' do
c = params[:controller]
module = controller_map[c]
module.create_new()
...
end
get '/:controller/:id/show' do
c = params[:controller]
id = params[:id]
module = controller_map[c]
module.get(id)
...
end
The problem I'm having is that Sinatra apps don't always seem to show my ERB when it is used in some specific context of hyperlinks. I have no idea how much is relevant to show for this question, so I'll do the best I can .Basically, I have a file in my Sinatra app called book_show.erb. It has the following line:
<p>Edit Book</p>
However, when that link is rendered in the browser, it links like this:
http://localhost:9292/books/#{#book.id}/edit
The #{#book.id} was not replaced with the actual ID value. There is a #book object and I do use it in other contexts in that very same file. For example:
<h1><%= #book.series %></h2>
<h2><%= #book.title %></h2>
<h3>Timeframe:</h3>
<p><%= #book.timeframe %></p>
I don't even know if my routes would make a difference here for diagnosing this but all of the relevant routes for my books functionality are:
get '/books' do
#title = 'Book Database'
#books = Book.all
erb :books
end
get '/books/new' do
#book = Book.new
erb :book_add
end
get '/books/:id' do
#book = Book.get(params[:id])
erb :book_show
end
post '/books' do
book = Book.create(params[:book])
redirect to("/books/#{book.id}")
end
I don't know what else to show to help diagnose this problem. I'm hoping someone sees something terribly obvious that I'm missing.
Adding a book to the database works just fine; it's only that edit link that I can't get to work correctly -- and that would seem to be pure HTML/ERB. In order to test it, I also added this line to the page:
<p>Testing: <%= "/books/#{#book.id}/edit" %>
That came back and returned this text:
Testing: /books/4/edit
So I know the ID is getting stored. It has to be something to do with the hyperlink but I can find nothing useful on Sinatra that helps at all with this.
ERB template does not behave like a ruby string - you need to explicitly tell it you exit the 'template' part into the 'logic' part. It looks very odd when it comes to attributes:
<p>Edit Book</p>
You could use link_to helpers to make it look better:
link_to('Edit Book', controller: 'books', action: 'edit', id: #book.id)
I have this action inside a mailer template in Ruby on Rails 3.2:
# password_reset.text.erb
<%= edit_password_reset_path(#user.password_reset_token) %>
Unfortunately, when I hit that link I get a strange routing error:
No route matches {:action=>"edit", :controller=>"password_resets", :locale=>"Ze92D45dUPpfwsgbFmpYeg"}
It is strange that the locale seems to contain the password_reset_token here rather than the locale (e.g. en or de).
So I guess that edit_password_reset_path is not getting localised automatically and that is causing the error?
How could that be fixed?
Here's some more info:
class PasswordResetsController < ApplicationController
def edit
#user = User.find_by_password_reset_token!(params[:id])
end
end
# routes.rb
scope '(:locale)' do
resources :password_resets
....
end
You need to send the token as a query param:
edit_password_reset_path(#user, password_reset_token: #user.password_reset_token)
# Passing in the #user fulfills the :id section of the url.
By doing edit_password_reset_path(#user.password_reset_token) you are providing the reset token to the :locale section.
To provide locale as well:
edit_password_reset_path(#user, locale: "de", password_reset_token: #user.password_reset_token)
I need to render a Sinatra erb template inside a class in my controller. I'm having issues calling this though. I've looked in the Sinatra rdocs and have come up with this:
Sinatra::Templates.erb :template_to_render
When I do this, I get the following error:
undefined method `erb' for Sinatra::Templates:Module
Is there a way to call this from another class?
To imitate rendering behavior of Sinatra controller in some other class (not controller) you can create module like this:
module ErbRender
include Sinatra::Templates
include Sinatra::Helpers
include Sinatra::ContentFor
def settings
#settings ||= begin
settings = Sinatra::Application.settings
settings.root = "#{ROOT}/app"
settings
end
end
def template_cache
#template_cache ||= Tilt::Cache.new
end
end
Here you may need to tune settings.root
Usage example:
class ArticleIndexingPostBody
include ErbRender
def get_body
erb :'amp/articles/show', layout: :'amp/layout'
end
end
This will properly render templates with layouts including content_for
why you don't require 'erb' and after use only erb
## You'll need to require erb in your app
require 'erb'
get '/' do
erb :index
end
You could have your class return the template name and render it in the main app.
Of course that's not exactly an answer (I don't have enough rep to add a comment with this account) and you're probably doing just that by now anyway...