impress/app/controllers/closet_hangers_controller.rb

126 lines
4.4 KiB
Ruby

class ClosetHangersController < ApplicationController
before_filter :authorize_user!, :only => [:destroy, :create, :update]
before_filter :find_item, :only => [:destroy, :create, :update]
def destroy
raise ActiveRecord::RecordNotFound unless params[:closet_hanger]
@closet_hanger = current_user.closet_hangers.find_by_item_id_and_owned!(@item.id, owned)
@closet_hanger.destroy
respond_to do |format|
format.html { redirect_after_destroy! }
format.json { render :json => true }
end
end
def index
@user = User.find params[:user_id]
@public_perspective = params.has_key?(:public) || !user_is?(@user)
@perspective_user = current_user unless @public_perspective
@closet_lists_by_owned = @user.closet_lists.
alphabetical.includes(:hangers => :item)
unless @perspective_user == @user
# If we run this when the user matches, we'll end up with effectively:
# WHERE belongs_to_user AND (is_public OR belongs_to_user)
# and it's a bit silly to put the SQL server through a condition that's
# always true.
@closet_lists_by_owned = @closet_lists_by_owned.visible_to(@perspective_user)
end
@closet_lists_by_owned = @closet_lists_by_owned.group_by(&:hangers_owned)
visible_groups = @user.closet_hangers_groups_visible_to(@perspective_user)
unless visible_groups.empty?
@unlisted_closet_hangers_by_owned = @user.closet_hangers.unlisted.
owned_before_wanted.alphabetical_by_item_name.includes(:item).
where(:owned => [visible_groups]).group_by(&:owned)
else
@unlisted_closet_hangers_by_owned = {}
end
if @public_perspective
items = []
@closet_lists_by_owned.each do |owned, lists|
lists.each do |list|
list.hangers.each { |hanger| items << hanger.item }
end
end
@unlisted_closet_hangers_by_owned.each do |owned, hangers|
hangers.each { |hanger| items << hanger.item }
end
current_user.assign_closeted_to_items!(items)
end
end
# Since the user does not care about the idea of a hanger, but rather the
# quantity of an item they own, the user would expect a create form to work
# even after the record already exists, and an update form to work even after
# the record is deleted. So, create and update are aliased, and both find
# the record if it exists or create a new one if it does not. They will even
# delete the record if quantity is zero.
#
# This is kinda a violation of REST. It's not worth breaking user
# expectations, though, and I can't really think of a genuinely RESTful way
# to pull this off.
def update
@closet_hanger = current_user.closet_hangers.find_or_initialize_by_item_id_and_owned(@item.id, owned)
@closet_hanger.attributes = params[:closet_hanger]
unless @closet_hanger.quantity == 0 # save the hanger, new record or not
if @closet_hanger.save
respond_to do |format|
format.html {
message = "Success! You #{@closet_hanger.verb(:you)} #{@closet_hanger.quantity} "
message << ((@closet_hanger.quantity > 1) ? @item.name.pluralize : @item.name)
message << " in the \"#{@closet_hanger.list.name}\" list" if @closet_hanger.list
flash[:success] = "#{message}."
redirect_back!(@item)
}
format.json { render :json => true }
end
else
respond_to do |format|
format.html {
flash[:alert] = "We couldn't save how many of this item you #{@closet_hanger.verb(:you)}: #{@closet_hanger.errors.full_messages.to_sentence}"
redirect_back!(@item)
}
format.json { render :json => {:errors => @closet_hanger.errors.full_messages}, :status => :unprocessable_entity }
end
end
else # delete the hanger since the user doesn't want it
@closet_hanger.destroy
respond_to do |format|
format.html { redirect_after_destroy! }
format.json { render :json => true }
end
end
end
alias_method :create, :update
protected
def find_item
@item = Item.find params[:item_id]
end
def owned
owned = true
if params[:closet_hanger]
owned = case params[:closet_hanger][:owned]
when 'true', '1' then true
when 'false', '0' then false
end
end
end
def redirect_after_destroy!
flash[:success] = "Success! You do not #{@closet_hanger.verb(:you)} #{@item.name}."
redirect_back!(@item)
end
end