A demonstration of authentication, routing, modeling, and messaging for a social network in Sinatra. We employ a general-purpose implementation of a network model, consisting of user nodes, friendship edges, posts, comments, and live conversations comprising direct messages.
Routing is specified explicitly:
get '/signin' do
erb :'auth/signin'
end
post '/signin' do
user = User.find_by(username: params[:user][:username])
if user && user.authenticate(params[:user][:password])
session[:user_id] = user.id
redirect '/'
else
redirect '/signin'
end
end
Prior locations are stored:
def store_location
session[:return_to] = request.url
end
def get_location
pop = session[:return_to]
session[:return_to] = nil
pop
end
And used where redirection is necessary:
get '/posts/authored/:user_id' do # Non-accessible
store_location
erb :'post/group/authored', locals: { user: User.find(params[:user_id]) },
layout: :inset
end
post '/posts/:post_id/edit' do
Post.find(params[:post_id]).update(params[:post])
redirect get_location
end
Friendship tables are stored in a validated self join:
class Friendship < ActiveRecord::Base
belongs_to :friender,
foreign_key: "friender_id",
class_name: "User"
belongs_to :friendee,
foreign_key: "friendee_id",
class_name: "User"
validates_uniqueness_of :friendee_id, scope: :friender_id
validates_presence_of :friender_id, :friendee_id
end
- Fork it
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create new Pull Request