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# Redmine - project management software
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# Copyright (C) 2006-2016 Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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class CustomFieldEnumeration < ActiveRecord::Base
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belongs_to :custom_field
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attr_accessible :name, :active, :position
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validates_presence_of :name, :position, :custom_field_id
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validates_length_of :name, :maximum => 60
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validates_numericality_of :position, :only_integer => true
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before_create :set_position
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scope :active, lambda { where(:active => true) }
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def to_s
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name.to_s
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end
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def objects_count
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custom_values.count
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end
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def in_use?
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objects_count > 0
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end
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alias :destroy_without_reassign :destroy
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def destroy(reassign_to=nil)
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if reassign_to
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custom_values.update_all(:value => reassign_to.id.to_s)
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end
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destroy_without_reassign
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end
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def custom_values
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custom_field.custom_values.where(:value => id.to_s)
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end
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def self.update_each(custom_field, attributes)
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return unless attributes.is_a?(Hash)
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transaction do
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attributes.each do |enumeration_id, enumeration_attributes|
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enumeration = custom_field.enumerations.find_by_id(enumeration_id)
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if enumeration
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enumeration.attributes = enumeration_attributes
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unless enumeration.save
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raise ActiveRecord::Rollback
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end
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end
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end
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end
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end
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def self.fields_for_order_statement(table=nil)
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table ||= table_name
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columns = ['position']
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columns.uniq.map {|field| "#{table}.#{field}"}
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end
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private
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def set_position
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max = self.class.where(:custom_field_id => custom_field_id).maximum(:position) || 0
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self.position = max + 1
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end
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end
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