"The daylight on the website"

[jonetta]

I'm building a "Director of Day" in ruby on rails. We need to get the tape off in a random way and not change in one day.

You can make an accidental recipe:

@recipe_day = Recipe.order("RANDOM()").first

But with every reboot of the page, naturally, it will come out differently. How do you make sure he doesn't change all day?

[elysha]

Add the field to through migration:

rails g migration AddTopToRecipes top:boolean

To avoid three conditions (true, false, nil) it is better to:

add_top_to_recipes.rb

class AddTopToRecipes < ActiveRecord::Migration
  def change
    add_column :recipes, :top, :boolean, null: false, default: false
  end
end

Don't forget to migration:

rake db:migrate

recipe.rb

class Recipe < ActiveRecord::Base
  # Return the current recipe of the day
  def self.recipe_of_the_day
    self.find_by_top(true)
  end
Set up the recipe of the day
def self.setup_recipe_of_the_day

current_recipe = self.recipe_of_the_day
recipe_ids = self.all(
  :select =&gt; "id",
  :conditions =&gt; ['id != ?', current_recipe.id]
)

next_recipe = self.find(recipe_ids[rand(recipe_ids.length)])

current_recipe.update_attribute(:top, false)
next_recipe.update_attribute(:top, true)

end

end

Use the recipe once a day. http://github.com/javan/whenever ♪
Set the target on the schedule:

schedule.rb

every 1.day do

runner "Recipe.setup_recipe_of_the_day"

end

ps: The code is better re-established.