added 260907 version of worker toolkit

worker-toolkit-flaredown/repo/backend/app/models/chart.rb

@@ -0,0 +1,38 @@
+class Chart
+  include ActiveModel::Serialization
+  include ActiveModel::Model
+
+  attr_accessor :id, :user, :start_at, :end_at, :includes
+
+  #
+  # Validations
+  #
+  validates :user, :start_at, :end_at, presence: true
+
+  def checkins
+    @checkins ||= user.checkins.by_date(start_at.to_date, end_at.to_date).map do |checkin|
+      checkin.includes = includes
+
+      checkin
+    end
+  end
+
+  def trackables
+    @_trackables ||= trackings.map(&:trackable)
+  end
+
+  private
+
+  def trackings
+    return Tracking.none if includes.blank?
+
+    relation = Tracking.includes(:trackable)
+
+    relation
+      .where(trackable_type: :Condition, trackable_id: includes[:conditions] || [])
+      .or(relation.where(trackable_type: :Symptom, trackable_id: includes[:symptoms] || []))
+      .or(relation.where(trackable_type: :Treatment, trackable_id: includes[:treatments] || []))
+      .where(user_id: user.id)
+      .active_in_range(start_at.to_date, end_at.to_date)
+  end
+end