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PORails: Find entries by date
 

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    <p>I'm running Ruby 2 and Rails 4.</p> <p>I am creating an app where you can track the calories and macronutrients of each meal entered on a particular day, but I would like the ability to look back at previous days.</p> <p>I have a table showing what meals have been entered today on my index page through a scope in my model. How would I implement the ability to look back at other days in Rails? </p> <p>Should I add in a date model or give each meal a datetime? Is there a gem for this sort of thing?</p> <p><strong>Meals Model</strong></p> <pre><code>class Meal &lt; ActiveRecord::Base scope :today, lambda { where("created_at &gt; ?", Time.now.beginning_of_day) .where("created_at &lt; ?", Time.now.end_of_day) } scope :previous, lambda { where("created_at &lt; ?", Time.now.beginning_of_day) } validates :name, presence: true validates :calories, presence: true, numericality: { only validates :protein, numericality: { only_integer: true } validates :carbohydrates, numericality: { only_integer: t validates :fats, numericality: { only_integer: true } belongs_to :user end </code></pre> <p><strong>Meals Controller</strong></p> <pre><code> def index if user_signed_in? @todays_meals = current_user.meals.today unless current_user.bmr.blank? || current_user.weight.blank? || current_user.protein_intake.blank? || current_user.fat_percentage.blank? @remaining_calories = (current_user.bmr) - @todays_meals.sum(:calories) @remaining_protein = current_user.protein_intake - @todays_meals.sum(:protein) @remaining_fats = (current_user.bmr * current_user.fat_percentage / 900).to_i - @todays_meals.sum(:fats) @remaining_carbs = carbs_calculator @fat_grams = current_user.fat_percentage * current_user.bmr / 900 @carb_grams = (carbs_calculator + @todays_meals.sum(:carbohydrates)) end else @no_header = true end end </code></pre> <p>Thanks!</p>
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    1. USLuke Macauley
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