class << self def groups SIZE_KEYS.map(&:to_s) end def genders GENDER_KEYS.map(&:to_s) end end def initialize(size, gender) @size = size.to_sym @gender = gender.to_sym raise ArgumentError unless SIZES[@size].present? raise ArgumentError unless GENDERS[@gender].present? end def name "#{GENDERS[gender]} #{SIZES[size]}" end def <=>(other) [GENDER_KEYS.index(gender), SIZE_KEYS.index(size)] <=> [GENDER_KEYS.index(other.gender), SIZE_KEYS.i end def eql?(other) gender == other.gender && size == other.size end def to_s name end end
module UserDeactivator extend self def call(user, active: active) return if user.active == active user.update! active: active user.posts.update_all active: active user.votes.update_all active: active user.comments.update_all active: active user.following_association.update_all active: active user.followers_association.update_all active: active end end
class RegistrationController < ApplicationController def create @registration = RegistrationForm.new(registration_param) if @registration.save redirect_to user_path(@registration.user) else render :new end end end
class RegistrationController < ApplicationController def create @registration = RegistrationForm.new(registration_param) @registration.save respond_with @registration end end
def initialize @user = User.new @account = Account.new owner: @user end def update(attributes) attributes.each do |name, value| public_send "#{name}=", value end if valid? & user.update(user_attributes) && account.update(account_attributes) account.users << user AccountWasCreated.perform_later(account) else false end end private def ensure_unique_user_email errors.add :email, 'already taken' if User.where(email: email).any? end def ensure_unique_account_name errors.add :name, 'already taken' if Account.where(name: name).any? end def user_attributes {first_name: first_name, last_name: last_name, email: email} end def account_attributes {plan: plan, name: name} end end
module ProductRanking def initialize(scope = Product) @scope = Product end def all query end def page(page, per_page: 10) query.per_page(per_page).page(page) end def find_each(&block) query.find_each(&block) end private def query # really nasty SQL SELECT end end
search = PostSearch.new filters: params[:filters] # accessing search options search.name # => name option search.created_at # => created at option # accessing results search.count # => number of found results search.results? # => is there any results found search.results # => found results # params for url generations search.params # => option values search.params opened: false # => overwrites the 'opened' option
class ArticlePresenter attr_reader :article delegate :title, :headline, to: :article def initialize(article) @article = article end def publication_status if published? "Published at #{published_at}" else "Unpublished" end end def content BodyFormat.call(article.content) end private def published_at article.published_at.strftime("%A, %B %e") end end
class ArticleDecorator attr_reader :article, :view delegate :title, :headline, to: :article def initialize(article, view) @article = article @view = view end def publication_status if published? "Published at #{published_at}" else "Unpublished" end end def publication_status_tag @view.content_tag :span, class: 'article-status', publication_status end def headline_tag @view.content_tag :h1, title end def render_comments @view.render 'comments/list', comments: article.comments end private def published_at article.published_at.strftime("%A, %B %e") end end
class ArticleDecorator < Draper::Decorator delegate_all def publication_status if published? "Published at #{published_at}" else "Unpublished" end end private def published_at object.published_at.strftime("%A, %B %e") end end
module TourHelper def with_tour yield ShowTour.new(self) end class ShowTour def initialize(context) @context = context @just_registered = context.session.delete(:show_tour) end def show? @just_registered || @context.cookies[:hide_tour].blank? end def scene @just_registered ? 5 : 1 end def show_hi_user? @just_registered end def max_scene @context.logged_in? 5 : 6 end def link text = show? ? 'Hide tour' : 'Show tour' @context.link_to text, '#', class: 'focus js-toggle-tour' end end end
class << self def ten_most_popular find_by_sql <<-SQL SQL end def search(fields) scope = all scope = find_by_name(scope, fields[:name]) if fields[:name] scope = find_by_email(scope, fields[:email]) if fields[:email] # ... scope end private def find_by_name(scope, value) scope.where('first_name LIKE ? OR last_name LIKE ?', value, value) end def find_by_email(scope, email) scope.where(email: email) end end def tshirt_size # ... end
end def tshirt_size # ... end def shipping_address # ... end def payment_address # ... end def name "#{first_name} #{last_name}" end def user_status if trashed? 'Deleted user' else if !active? 'Inactive user' else if spammer? 'Spammer' else 'Normal user' end end
end end def activate # ... end def deactivate # ... end def require_password_change(password) # ... end private def password_required? # ... end def record_registration_ip # ... end def old_password_correct # ... end def enqueue_avatar_update
def deactivate # ... end def require_password_change(password) # ... end private def password_required? # ... end def record_registration_ip # ... end def old_password_correct # ... end def enqueue_avatar_update # ... end end
class << self def search(fields) scope = all scope = find_by_name(scope, fields[:name]) if fields[:name] scope = find_by_email(scope, fields[:email]) if fields[:email] # ... scope end private def find_by_name(scope, value) scope.where('first_name LIKE ? OR last_name LIKE ?', value, value) end def find_by_email(scope, email) scope.where(email: email) end end def tshirt_size # ... end def shipping_address # ... end def payment_address # ... end def name "#{first_name} #{last_name}" end
accepts_nested_attributes_for :hobbies, allow_destroy: true mount_uploader :avatar, Users::AvatarUploader def tshirt_size # ... end def shipping_address # ... end def payment_address # ... end def name "#{first_name} #{last_name}" end def user_status if trashed? 'Deleted user' else if !active? 'Inactive user' else if spammer? 'Spammer' else 'Normal user' end end def activate # ... end
class UserPresenter < SimpleDelegator def name "#{first_name} #{last_name}" end def status if trashed? 'Deleted user' else if !active? 'Inactive user' else if spammer? 'Spammer' else 'Normal user' end end end
class UpdatePasswordForm include MiniForm::Model attributes :current_password, :password, :password_confirmation validates :password, presence: true, confirmation: true validate :ensure_current_password_is_correct attr_reader :user def initialize(user) @user = user end def preform # things ActiveModel::SecurePassword # will take care for proper password storage user.update! password: password end private def ensure_current_password_is_correct # ... end end
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