OpenProject is the leading open source project management software.
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openproject/app/models/custom_value.rb

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#-- encoding: UTF-8
#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2015 the OpenProject Foundation (OPF)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2013 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# See doc/COPYRIGHT.rdoc for more details.
#++
class CustomValue < ActiveRecord::Base
belongs_to :custom_field
belongs_to :customized, polymorphic: true
validate :validate_presence_of_required_value
validate :validate_format_of_value
validate :validate_type_of_value
validate :validate_length_of_value
after_initialize :set_default_value
def set_default_value
if new_record? && custom_field && (customized_type.blank? || (customized && customized.new_record?))
self.value ||= custom_field.default_value
end
end
# Returns true if the boolean custom value is true
def true?
self.value == '1'
end
def editable?
custom_field.editable?
end
def visible?
custom_field.visible?
end
def required?
custom_field.is_required?
end
def to_s
value.to_s
end
protected
def validate_presence_of_required_value
errors.add(:value, :blank) if custom_field.is_required? && value.blank?
end
def validate_format_of_value
if value.present?
errors.add(:value, :invalid) unless custom_field.regexp.blank? or value =~ Regexp.new(custom_field.regexp)
end
end
def validate_type_of_value
if value.present?
# Format specific validations
case custom_field.field_format
when 'int'
errors.add(:value, :not_a_number) unless value =~ /\A[+-]?\d+\z/
when 'float'
begin; Kernel.Float(value); rescue; errors.add(:value, :invalid) end
when 'date'
errors.add(:value, :not_a_date) unless value =~ /\A\d{4}-\d{2}-\d{2}\z/
when 'list'
errors.add(:value, :inclusion) unless custom_field.possible_values.include?(value)
end
end
end
def validate_length_of_value
if value.present? && custom_field.min_length.present? && custom_field.max_length.present?
errors.add(:value, :too_short, count: custom_field.min_length) if custom_field.min_length > 0 and value.length < custom_field.min_length
errors.add(:value, :too_long, count: custom_field.max_length) if custom_field.max_length > 0 and value.length > custom_field.max_length
end
end
end