Merge pull request #68 from plural/add-cards-and-format-id-to-snapshot-resource

Add cards relation and format_id attribute to snapshot resource.

Author: plural

app/models/snapshot.rb

@@ -4,4 +4,5 @@ class Snapshot < ApplicationRecord
   belongs_to :format
   belongs_to :card_pool
   belongs_to :restriction, optional: :true
+  has_many :cards, through: :card_pool
 end

app/resources/api/v3/public/snapshot_resource.rb

@@ -4,15 +4,17 @@ module Public
       class Api::V3::Public::SnapshotResource < JSONAPI::Resource
         immutable
 
-        attributes :active, :card_cycle_ids, :card_set_ids, :date_start, :updated_at
+        attributes :format_id, :active, :card_cycle_ids, :card_set_ids, :date_start, :updated_at
         key_type :string
 
         paginator :none
 
         belongs_to :format
-        # has_one :card_pool
+        has_one :card_pool
         has_one :restriction
 
+        has_many :cards
+
         def card_cycle_ids
           @model.card_pool.card_pool_card_cycles.pluck(:card_cycle_id)
         end