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educoder/app/services/item_baskets/save_item_basket_service.rb

47 lines
1.2 KiB

class ItemBaskets::SaveItemBasketService < ApplicationService
attr_reader :user, :params
def initialize(user, params)
@user = user
@params = params
end
def call
raise("请选择试题") if params[:item_ids].blank?
# 只能选用公共题库或是自己的题库
items = ItemBank.where(public: 1).or(ItemBank.where(user_id: user.id))
# 已选到过试题篮的不重复选用
item_ids = params[:item_ids] - user.item_baskets.pluck(:item_bank_id)
items.where(id: item_ids).each do |item|
new_item = ItemBasket.new(user_id: user.id, item_bank_id: item.id, item_type: item.item_type)
new_item.score = item_score item.item_type
new_item.position = item_position item.item_type
new_item.save!
end
end
private
def item_score item_type
if user.item_baskets.where(item_type: item_type).last.present?
score = user.item_baskets.where(item_type: item_type).last.score
else
score =
case item_type
when "SINGLE", "MULTIPLE", "JUDGMENT"
5
when "PROGRAM"
10
else
5
end
end
score
end
def item_position item_type
user.item_baskets.where(item_type: item_type).last&.position.to_i + 1
end
end