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impress/app/controllers/item_trades_controller.rb

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class ItemTradesController < ApplicationController
def index
@item = Item.find params[:item_id]
@type = type_from_params
@item_trades = @item.closet_hangers.trading.includes(:user, :list).
user_is_active.order('users.last_trade_activity_at DESC').to_trades
@trades = @item_trades[@type]
if user_signed_in?
@current_user_lists = current_user.closet_lists.alphabetical.
group_by_owned
@current_user_quantities = current_user.item_quantities_for(@item)
end
render layout: 'items'
end
def type_from_params
case params[:type]
when 'offering'
:offering
when 'seeking'
:seeking
else
raise ArgumentError, "unexpected trades type: #{params[:type].inspect}"
end
end
end