codecore

day.29

# 

gem rails-erd 


brew install graphviz

bin/rake erd

--------------------------------


-questions.rb
  has_many :taggings, dependent: :destroy
  has_many :tags, through: :taggings

-tag.rb
  has_many :taggings, dependent: :destroy
  has_many :questions, throught: :taggings 
  
-tagging
  validates :tag_id, :question_id, presence: true
  validates :tag_id, uniqueness: {scope: :question_id}
  
-seed
["Coffee", "Snow", "Hockey", "Bow Buns", "Money"].each do |cat|
  Category.create(name: cat)
end


-tag.rb
  validates :name, presence: true, uniqueness: true

-run your seed
  bin/rake db:seed
  

q.tags_id = [2,4]


collection check box rails

_form.html.erb

  <div>
    <%= f.collection_check_boxes(:tag_ids, Tag.order("name"), :id, :name) %>
  </div>
  
  

  --------------------------------------------------
  bin/rails g model vote user: references question: references vote_up: boolean
  
  -user.rb
  has_many :voted_questions, through: :votes, source: :question
  
  -question.rb
  has_many :voiting_users, through: :votes, source: :user
  
  -vote.rb
  validates :question_id, uniqueness: {scope: :user_id}
  
  -generate controller
  bin/rails g controller votes
  
  -routes.rb
  resources :votes, only: [:create,:update,:destroy]
  
  -votes controller
  before_action :authenticate_user
  
  def create
    question = Question.find params[:question_id]
    vote = Vote.new vote_params
    vote.user = current_user
    vote.question = question
    flash = (vote.save) ? {notice: "Voted!"} : {alert: "Try again!"}
    
    ##or
    
    if vote.save
      redirect_to question_path(question),notice: "Voted!"
    else
      redirect_to question_path(question), alert: "Try again!"
    end
  end
  
  def update
  
  end
  
  def destroy
  
  end
  
  private
  
  def vote_params
    params.require(:vote).permit(:is_up)
  end
end

  -question.show
  
  <%= link_to "Vote Up", question_votes_path(@question, {vote: {is_up: true}}),
  method: :post%>
  <%= link_to "Vote Down", question_votes_path(@question, {vote: {is_up: false}}),
  method: :post%>
  
  -question.rb
  
  def vote_for(user)
    votes.find_by_user_id user
  end
  
    -question.show
  
  <% vote = @question.vote_for(current_user) %>
  
  <%if !vote%>
  
    <%= link_to "Vote Up", question_votes_path(@question, {vote: {is_up: true}}),
    method: :post%>
    <%= link_to "Vote Down", question_votes_path(@question, {vote: {is_up: false}}),
    method: :post%>
  
  <% elsif vote.is_up? %>
    <% link_to "Remove Vote up", question_vote_path(@question, vote), method: :delete %>
    
  <% else %>
  
  <% end %>
  
  -votes controller
  
  def destroy
    question = Question.find params[:question_id]
    vote = Vote.find params[:id]
    vote.destroy
    redirect_to question_path(question), notice: "Vote removed"
  end
  
  -question.show
  
  <% vote = @question.vote_for(current_user) %>
  
  <%if !vote%>
  
    <%= link_to "Vote Up", question_votes_path(@question, {vote: {is_up: true}}),
    method: :post%>
    <%= link_to "Vote Down", question_votes_path(@question, {vote: {is_up: false}}),
    method: :post%>
  
  <% elsif vote.is_up? %>
    <% link_to "Remove Vote up", question_vote_path(@question, vote), method: :delete %>
    
  <% else %>
    <% link_to "Remove Vote down", question_vote_path(@question, vote), method: :delete %>
    
  <% end %>
  
  
  
  -question.show
  
  <% vote = @question.vote_for(current_user) %>
  
  <%if !vote%>
  
    <%= link_to "Vote Up", question_votes_path(@question, {vote: {is_up: true}}),
    method: :post%>
    <%= link_to "Vote Down", question_votes_path(@question, {vote: {is_up: false}}),
    method: :post%>
  
  <% elsif vote.is_up? %>
    <% link_to "Remove Vote up", question_vote_path(@question, vote), method: :delete %>
    
    <%= link_to "Vote Down", question_votes_path(@question, {vote: {is_up: false}}), method: :patch%>
    
  <% else %>
    <% link_to "Remove Vote down", question_vote_path(@question, vote), method: :delete %>
    <%= link_to "Vote Up", question_votes_path(@question, {vote: {is_up: true}}), method: :patch%>
  <% end %>
  
  -vote controller
  
  def update
    question = Question.find params[:question_id]
    vote = Vote.find params[:id]
    if vote.update vote_params
      redirect_to question_path(question), notice: "Vote Updated!"
    else
      redirect_to question_path(question), notice: "try again"
    end
  end
  
  
  checking to see if the user is 
  
  -vote controller
  
  def update
    question = Question.find params[:question_id]
    vote = current_user.votes.find params[:id]
    if vote.update vote_params
      redirect_to question_path(question), notice: "Vote Updated!"
    else
      redirect_to question_path(question), notice: "try again"
    end
  end
  
  -----------------------------------------------------------------------
  
  
  -question.rb
  
  def vote_result
    votes.where(is_up: true).count - votes.where(is_up: false).count
  end
  
  def self.up_count
    where(is_up: true).count
  end
  
  def self.down_count
    where(is_up: false).count
  end
  q.where(is_up: true)
  q.where(is_up: false)
  
  
  scope :up_count,lambda { where(is_up: true).count }
  
  
  -------------------------------------------------------------------------------------------------------------------------
  
  # Mailers


-.gitignore 

/config/initializers/app_keys.rb


-app_keys.rb
ENV["email_user_name"] = "answerawesome"
ENV["email_password"] = "Sup3r$ecret"


bin/rails g mailer answers_mailer


-answers_mailer.rb


------------------------------------------------------------------------------

delay job

gem "delayed_job_active_record"

bundle

rails generate delayed_job:active_record
rake db:migrate

-appllication.rb