i'm trying to make a image gallery with sinatra but a thing that should be simple task is confusing and has a lack of doc and tutorial about it!
So please can someone give a light about this?
for upload i'm using shrine
my biggest doubt is related with name params, should use the galleries model or just images?
class Post < ActiveRecord::Base
validates :title, :content, presence: true, on: :create
has_many :galleries, dependent: :destroy
accepts_nested_attributes_for :galleries, allow_destroy: true
end
require_relative "../uploaders/image_uploader"
class Gallery < ActiveRecord::Base
belongs_to :post
validates :image, presence: true, on: :create
include ImageUploader::Attachment.new(:image)
scope :recent, -> { order('created_at desc') }
# validates_size_of :images, maximum: 2.megabyte, message: "Attachment size exceeds the allowable limit (2 MB)."
end
post controller
post "/posts" do
#post = Post.new(params[:post])
#post.user = current_user
#post.image_derivatives! if #post.image_changed? # creates derivatives
if #post.save
# unless params[:galleries].blank?
# params[:galleries]['image'].each do |a|
# #post.galleries.create!(:image => a)
#end
# end
if params[:post][:galleries][:image] && params[:post][:galleries][:image][:filename]
filename = params[:image][:filename]
file = params[:image][:tempfile]
path = "./public/uploads/#{filename}"
# Write file to disk
File.open(path, "wb") { |f| f.write(file.read) }
end
redirect "/posts/#{#post.slug}"
else
#errors = #post.errors
erb :"/posts/new"
end
end
Related
I have a weird behaviour when using User.find_or_create_by! in before_action filter as follows:
class ApplicationController < ActionController::API
before_action :authorize_request
attr_reader :current_user
private
def authorize_request
#current_user = (AuthorizeApiRequest.new(request.headers).call)[:user]
end
end
Then in AuthorizeApiRequest I'm checking for existence or creating a new User by name:
class AuthorizeApiRequest
def initialize(headers = {})
#headers = headers
end
def call
{
user: user
}
end
def user
if decoded_auth_token && decoded_auth_token[:sub]
#user ||= User.find_or_create_by!(username: decoded_auth_token[:sub])
Rails.logger.silence do
#user.update_column(:token, http_auth_header)
end
#user
end
rescue ActiveRecord::RecordInvalid => e
raise(
ExceptionHandler::InvalidToken,
("#{Message.invalid_token} #{e.message}")
)
end
end
Example of UsersController:
class UsersController < ApplicationController
def me
if user_info_service.call
json_response current_user, :ok, include: 'shop'
else
raise AuthenticationError
end
end
private
def user_info_service_class
#user_info_service_class ||= ServiceProvider.get(:user_info_service)
end
def user_info_service
#user_info_service ||= user_info_service_class.new(user: current_user)
end
end
What is weird is that sometimes the User is created twice with the same username, sometimes not.
I'm using Ember JS in the front and another call is made to shops right after the authentication with JWT. All the routes are protected. I have the impression that calling current_user is not always in the same thread or sth like that and it results in having 2 identical users:
- the first one with just a username attribute set
- another one with all the others User attributes.
Here is the User model:
class User < ApplicationRecord
validates :username, presence: true, uniqueness: { case_sensitive: false }, on: :create
validates :shop_identifier, numericality: { only_integer: true, greater_than: 0 }, on: :update
validates :first_name, presence: true, on: :update
validates :last_name, presence: true, uniqueness: { case_sensitive: false, scope: :first_name }, on: :update
before_update do |user|
user.first_name = first_name.strip.capitalize
user.last_name = last_name.strip.upcase
end
Any ideas ? Thank you
I am working through Michael Hartl's Rails book and I am about halfway through chapter 10-working on account activation.
I had everything working with the mailers but then when I tried to add a new user, I got the following error message: "undefined method `activation_digest=' for #"
I have been trying to follow along in the book the best that I can. I have my users_controller.rb here:
class UsersController < ApplicationController
before_action :logged_in_user, only: [:index, :edit, :update]
before_action :correct_user, only: [:edit, :update]
def new
#user = User.new
end
def index
#users = User.paginate(page: params[:page], :per_page => 10)
end
def show
#user = User.find(params[:id])
end
def create
#user = User.new(user_params)
if #user.save
#user.send_activation_email
flash[:info] = "Please check your email to activate your account."
redirect_to root_url
else
render 'new'
end
end
def update
#user = User.find(params[:id])
if #user.update_attributes(user_params)
else
render 'edit'
end
end
def edit
#user = User.find(params[:id])
end
#confirms if a user is logged in
def logged_in_user
unless logged_in?
store_location
flash[:danger] = "Please Log In."
redirect_to login_url
end
end
private
def user_params
params.require(:user).permit(:name, :email, :password,
:password_confirmation)
end
end
Here is my Model/user.rb:
class User < ActiveRecord::Base
attr_accessor :remember_token, :activation_token
before_save :downcase_email
before_create :create_activation_digest
before_save { self.email = email.downcase }
validates :name, presence: true, length: { maximum: 50 }
VALID_EMAIL_REGEX = /\A[\w+\-.]+#[a-z\-.]+\.[a-z]+\z/i
validates :email, presence: true, length: { maximum: 255 },
format: { with: VALID_EMAIL_REGEX },
uniqueness: { case_sensitive: false }
has_secure_password
validates :password, length: { minimum: 6 }
# Returns the hash digest of the given string.
def User.digest(string)
cost = ActiveModel::SecurePassword.min_cost ? BCrypt::Engine::MIN_COST :
BCrypt::Engine.cost
BCrypt::Password.create(string, cost: cost)
end
#Returns a random token
def User.new_token
SecureRandom.urlsafe_base64
end
#Remembers a user in the database for use in persistent sessions
def remember
self.remember_token = User.new_token
update_attribute(:remember_digest, User.digest(remember_token))
end
#Returns true if the given token matches the digest
def authenticated?(remember_token)
return false if remember_digest.nil?
BCrypt::Password.new(remember_digest).is_password?(remember_token)
end
#forgets a user
def forget
update_attribute(:remember_digest, nil)
end
private
# Converts email to all lower-case.
def downcase_email
self.email = email.downcase
end
# Creates and assigns the activation token and digest.
def create_activation_digest
self.activation_token = User.new_token
self.activation_digest = User.digest(activation_token)
end
end
The routes I have this:
root 'static_pages#home'
get 'sessions/new'
get 'users/new'
get 'help' => 'static_pages#help'
get 'about' => 'static_pages#about'
get 'contact' => 'static_pages#contact'
get 'signup' => 'users#new'
get 'login' => 'sessions#new'
post 'login' => 'sessions#create'
delete 'logout' => 'sessions#destroy'
resources :users
resources :account_activations, only: [:edit]
Please let me know if anything more is needed to be seen. I do have my App up on Github under the name sample_app, my username is ravenusmc.
Looking at your project on Github, your User model doesn't have an activation_token or activation_digest column, nor does the model define them as attributes.
Your User model is trying to write to these columns in the User#create_activation_digest function which is most likely causing the issue.
You'll need to write a migration to add those columns to your User model or add them is attributes (ie attr_accessor) if they are not meant to be persisted.
I'm working on a web app that has users model. You either sign up or try the app and be a 'guest'. I had the sign up functionality working well until I added the guest option. I based on Railscast to do this (http://railscasts.com/episodes/393-guest-user-record) and that's when I ran into troubles
Here is my user model code
class User < ActiveRecord::Base
attr_accessible :name, :email, :password, :password_confirmation
has_many :bookings
has_one :account, dependent: :destroy
# before_save :downcase_email, allow_nil: true
before_save :create_remember_token
validates_presence_of :name, :email, :password, :password_confirmation, unless: :guest?
validates_uniqueness_of :email, case_sensitive: false , allow_blank: true
validates :name, length: { maximum: 50 }
VALID_EMAIL_REGEX = /\A[\w+\-.]+#[a-z\d\-.]+\.[a-z]+\z/i
validates :email, format: { with: VALID_EMAIL_REGEX }, unless: :guest?
validates :password, length: { minimum: 6 }, unless: :guest?
def downcase_email
{ |user| user.email = email.downcase }
end
# has_secure_password
# override has_secure_password to customize validation until Rails 4.
require 'bcrypt'
attr_reader :password, :password_confirmation
include ActiveModel::SecurePassword::InstanceMethodsOnActivation
##def to_param
## "#{id}.#{name.parameterize}"
##end
def self.new_guest
new { |u| u.guest = true }
end
def name
guest ? "Guest" : name
end
private
def create_remember_token
self.remember_token = SecureRandom.urlsafe_base64
end
end
and here is my User Controller code:
class UsersController < ApplicationController
before_filter :signed_in_user, only: [:edit, :update]
before_filter :correct_user, only: [:edit, :update]
def show
#user = User.find(params[:id])
end
def new
#user = User.new
end
def create
#user = params[:user] ? User.new(params[:user]) : User.new_guest
if #user.save
sign_in #user
#user.create_account.accountPlan = "Free"
##flash[:success] = "Welcome to the HighTide!"
redirect_to #user
else
render 'new'
end
end
def edit
#user = User.find(params[:id])
end
def update
#user = User.find(params[:id])
if #user.update_attributes(params[:user])
#flash[:success] = "Profile updated"
sign_in #user
redirect_to #user
else
render 'edit'
end
end
private
def correct_user
#user = User.find(params[:id])
redirect_to(root_path) unless current_user?(#user)
end
def admin_user
redirect_to(root_path) unless current_user.admin?
end
end
you may notice some code is commented out. I wasn't able to store in the database a user without an email (and for have a quick and dirty thing working now I comment the callback before_save, I also might add that I use the guidelines of Michael Hartl tut)
What happens is, when I run this code I get a unknown attribute: password_confirmation error, but when I comment out
require 'bcrypt'
attr_reader :password, :password_confirmation
include ActiveModel::SecurePassword::InstanceMethodsOnActivation
and use has_secure_password instead
I get a stack level too deep
I haven't figured out what to do
I have an Item model that I do not need a separate show view for. Instead, when the item is updated I would like to return the user to the index. When the form is submitted to edit an item, you get an error like this : No route matches [PUT] "/items/1"
Here is the routes file
Order::Application.routes.draw do
root to: 'static_pages#home'
resources :static_pages
resources :customers
resources :demands
resources :items, only: [:new, :create, :destroy, :index, :edit]
end
Here is the controller
class ItemsController < ApplicationController
def index
#items = Item.all
end
def new
#item = Item.new
end
def create
#item = Item.new(params[:item])
if #item.save
flash[:success] = "Item saved!"
redirect_to items_path
else
render new_item_path
end
end
def destroy
Item.find(params[:id]).destroy
redirect_to items_path
end
def edit
#item = Item.find(params[:id])
end
def update
#item = Item.find(params[:id])
if #item.update_attributes(params[:item])
redirect_to 'items#index'
flash[:success] = "Item updated!"
else
render 'edit'
end
end
end
Here is the model
class Item < ActiveRecord::Base
attr_accessible :name, :price
validates :name, presence: true
VALID_PRICE_REGEX = /^[+-]?[0-9]{1,3}(?:,?[0-9]{3})*\.[0-9]{2}$/
validates :price, presence: true, format: {with: VALID_PRICE_REGEX}
end
You're missing the update action for items in your routes file.
resources :items, only: [:new, :create, :destroy, :index, :edit]
should be
resources :items, only: [:new, :create, :destroy, :index, :edit, :update]
or, more concisely,
resources :items, except: [:show]
Currently I am working on a sms application .I used devise gem for authentication and carrier wave for uploading. My question is after a successful login a user has to redirect to his own page and different users will be having redirecting to different pages.
User model
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :token_authenticatable, :encryptable, :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,:recoverable, :rememberable, :trackable, :validatable
# Setup accessible (or protected) attributes for your model
attr_accessible :email, :password, :password_confirmation, :remember_me
# attr_accessible :title, :body
has_many :sms
end
Sm model
class Sm < ActiveRecord::Base
attr_accessible :Messages, :Mobile_no, :Nickname, :Templates
validates_presence_of :Mobile_no
validates_length_of :Mobile_no, :minimum => 10, :maximum => 10, :allow_blank => true
validates :Mobile_no, :numericality => {:only_integer => true}
attr_accessible :sm_id, :name, :image
belongs_to :sm
mount_uploader :image, ImageUploader
validate :image_size_validation, :if => "image?"
def image_size_validation
errors[:image] << "should be less than 1MB" if image.size > 1.megabytes
end
validates :image, allow_blank: true, format: {
with: %r{\.(xls|xlsx|csv|txt)\z}i,
message: 'must be a TXT, CSV, XLS, or XLSX'
}, if: :filename_has_extension?
def filename_has_extension?
!(image.to_s =~ /\.[a-z]{1,4}\z/).nil?
end
belongs_to :user
end
You should define after_sign_in_path_for method in ApplicationController
def after_sign_in_path_for(resource)
# resource is commonly a User class object
if resource.admin?
# redirect somewhere
else
# redirect somewhere else
end
end