impress/app/models/closet_list.rb

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class ClosetList < ActiveRecord::Base
belongs_to :user
has_many :hangers, :class_name => 'ClosetHanger', :foreign_key => 'list_id'
validates :name, :presence => true, :uniqueness => {:scope => :user_id}
validates :user, :presence => true
validates :hangers_owned, :inclusion => {:in => [true, false], :message => "can't be blank"}
scope :alphabetical, -> { order(:name) }
scope :publicly_visible, -> {
where(arel_table[:visibility].gteq(ClosetVisibility[:public].id))
}
scope :visible_to, ->(user) {
condition = arel_table[:visibility].gteq(ClosetVisibility[:public].id)
condition = condition.or(arel_table[:user_id].eq(user.id)) if user
where(condition)
}
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after_save :sync_hangers_owned!
def sync_hangers_owned!
if hangers_owned_changed?
hangers.each do |hanger|
hanger.owned = hangers_owned
hanger.save!
end
end
end
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def try_non_null(method_name)
send(method_name)
end
module VisibilityMethods
delegate :trading?, to: :visibility_level
def visibility_level
ClosetVisibility.levels[visibility]
end
def trading_changed?
return false unless visibility_changed?
level_change = visibility_change.map { |v| ClosetVisibility.levels[v] }
old_trading, new_trading = level_change.map(&:trading?)
old_trading != new_trading
end
end
include VisibilityMethods
class Null
include VisibilityMethods
attr_reader :user
def initialize(user)
@user = user
end
def hangers
user.closet_hangers.unlisted.where(owned: hangers_owned)
end
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def hangers_owned?
hangers_owned
end
def try_non_null(method_name)
nil
end
end
class NullOwned < Null
def hangers_owned
true
end
def visibility
user.owned_closet_hangers_visibility
end
def visibility_changed?
user.owned_closet_hangers_visibility_changed?
end
def visibility_change
user.owned_closet_hangers_visibility_change
end
end
class NullWanted < Null
def hangers_owned
false
end
def visibility
user.wanted_closet_hangers_visibility
end
def visibility_changed?
user.wanted_closet_hangers_visibility_changed?
end
def visibility_change
user.wanted_closet_hangers_visibility_change
end
end
end