atomaka/dokkan-data-rails
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Add counter cache for links

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Andrew Tomaka 2015-11-03 14:36:44 -05:00
parent 1302454e5e
commit ab8b944682
3 changed files with 17 additions and 2 deletions
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2
app/models/card.rb
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@ -12,7 +12,7 @@ class Card < ActiveRecord::Base
belongs_to :awaken_type belongs_to :awaken_type
belongs_to :dokkan_card, class_name: 'Card', foreign_key: :dokkan_id belongs_to :dokkan_card, class_name: 'Card', foreign_key: :dokkan_id
has_and_belongs_to_many :links has_and_belongs_to_many :links, counter_cache: true
has_many :evidences has_many :evidences

14
db/migrate/20151103193404_add_links_counter_cache_to_cards.rb Normal file
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@ -0,0 +1,14 @@
class AddLinksCounterCacheToCards < ActiveRecord::Migration
def up
add_column :cards, :links_count, :integer, default: 0, null: false
Card.reset_column_information
Card.find_each do |card|
card.update_attribute(:links_count, card.links.count)
end
end
def down
remove_column :cards, :links_count
end
end

3
db/schema.rb
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@ -11,7 +11,7 @@
# #
# It's strongly recommended that you check this file into your version control system. # It's strongly recommended that you check this file into your version control system.
ActiveRecord::Schema.define(version: 20151020212132) do ActiveRecord::Schema.define(version: 20151103193404) do
create_table "awaken_types", force: :cascade do |t| create_table "awaken_types", force: :cascade do |t|
t.string "name" t.string "name"
@ -36,6 +36,7 @@ ActiveRecord::Schema.define(version: 20151020212132) do
t.integer "hp_stat_id" t.integer "hp_stat_id"
t.integer "atk_stat_id" t.integer "atk_stat_id"
t.integer "def_stat_id" t.integer "def_stat_id"
t.integer "links_count", default: 0, null: false
end end
add_index "cards", ["awaken_type_id"], name: "index_cards_on_awaken_type_id" add_index "cards", ["awaken_type_id"], name: "index_cards_on_awaken_type_id"