lib/tracks/attribute_handler.rb
module Tracks
class AttributeHandler
attr_reader :attributes
def initialize(user, attributes)
@user = user
@orig_attributes = attributes
@attributes = normalize(attributes)
end
def get(attribute)
@attributes[attribute.to_sym]
end
def [](attribute)
get attribute
end
def set(key, value)
@attributes[key.to_sym] = value
end
def set_if_nil(key, value)
@attributes[key.to_sym] ||= value
end
def []=(attribute, value)
set attribute, value
end
def except(key)
AttributeHandler.new(@user, @attributes.except(key.to_sym))
end
def key?(key)
@attributes.key?(key.to_sym)
end
def selector_key_present?(key)
key?(key)
end
def parse_date(date)
set(date, @user.prefs.parse_date(get(date)))
end
def parse_collection(object_type, relation)
object = nil
new_object_created = false
if specified_by_name?(object_type)
object, new_object_created = find_or_create_by_name(relation, object_name(object_type))
# put id of object in @attributes, i.e. set :project_id to project.id
@attributes["#{object_type.to_s}_id".to_sym] = object.id unless new_object_created
else
# find context or project by its id
object = attribute_with_id_of(object_type).present? ? relation.find(attribute_with_id_of(object_type)) : nil
end
@attributes[object_type] = object
return object, new_object_created
end
def object_name(object_type)
send("#{object_type}_name")
end
def attribute_with_id_of(object_type)
map = { project: 'project_id', context: 'context_id' }
get map[object_type]
end
def find_or_create_by_name(relation, name)
new_object_created = false
object = relation.where(:name => name).first
unless object
object = relation.build(:name => name)
new_object_created = true
end
return object, new_object_created
end
def specified_by_name?(object_type)
send("#{object_type}_specified_by_name?")
end
def project_specified_by_name?
return false if get(:project_id).present?
return false if project_name.blank?
true
end
def context_specified_by_name?
return false if get(:context_id).present?
return false if context_name.blank?
true
end
def project_name
get(:project_name).try(:strip)
end
def context_name
get(:context_name).try(:strip)
end
def normalize(attributes)
# make sure the hash keys are all symbols
attributes.transform_keys(&:to_sym)
end
def safe_attributes
ActionController::Parameters.new(attributes).permit(
:context, :project,
# model attributes
:context_id, :project_id, :description, :notes, :state, :start_from,
:ends_on, :end_date, :number_of_occurrences, :occurrences_count, :target,
:show_from_delta, :recurring_period, :recurrence_selector, :every_other1,
:every_other2, :every_other3, :every_day, :only_work_days, :every_count,
:weekday, :show_always, :context_name, :project_name, :tag_list,
# form attributes
:recurring_period, :daily_selector, :monthly_selector, :yearly_selector,
:recurring_target, :daily_every_x_days, :monthly_day_of_week,
:monthly_every_x_day, :monthly_every_x_month2, :monthly_every_x_month,
:monthly_every_xth_day, :recurring_show_days_before,
:recurring_show_always, :weekly_every_x_week, :weekly_return_monday,
:yearly_day_of_week, :yearly_every_x_day, :yearly_every_xth_day,
:yearly_month_of_year2, :yearly_month_of_year,
# derived attributes
:weekly_return_monday, :weekly_return_tuesday, :weekly_return_wednesday,
:weekly_return_thursday, :weekly_return_friday, :weekly_return_saturday, :weekly_return_sunday
)
end
end
end