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# redMine - project management software
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# Copyright (C) 2006-2007 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 Setting < ActiveRecord::Base
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DATE_FORMATS = [
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'%Y-%m-%d',
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'%d/%m/%Y',
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'%d.%m.%Y',
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'%d-%m-%Y',
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'%m/%d/%Y',
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'%d %b %Y',
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'%d %B %Y',
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'%b %d, %Y',
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'%B %d, %Y'
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]
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TIME_FORMATS = [
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'%H:%M',
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'%I:%M %p'
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]
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cattr_accessor :available_settings
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@@available_settings = YAML::load(File.open("#{RAILS_ROOT}/config/settings.yml"))
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Redmine::Plugin.registered_plugins.each do |id, plugin|
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next unless plugin.settings
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@@available_settings["plugin_#{id}"] = {'default' => plugin.settings[:default], 'serialized' => true}
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end
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validates_uniqueness_of :name
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validates_inclusion_of :name, :in => @@available_settings.keys
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validates_numericality_of :value, :only_integer => true, :if => Proc.new { |setting| @@available_settings[setting.name]['format'] == 'int' }
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# Hash used to cache setting values
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@cached_settings = {}
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@cached_cleared_on = Time.now
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def value
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v = read_attribute(:value)
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# Unserialize serialized settings
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v = YAML::load(v) if @@available_settings[name]['serialized'] && v.is_a?(String)
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v
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end
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def value=(v)
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v = v.to_yaml if v && @@available_settings[name]['serialized']
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write_attribute(:value, v)
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end
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# Returns the value of the setting named name
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def self.[](name)
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v = @cached_settings[name]
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v ? v : (@cached_settings[name] = find_or_default(name).value)
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end
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def self.[]=(name, v)
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setting = find_or_default(name)
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setting.value = (v ? v : "")
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@cached_settings[name] = nil
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setting.save
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setting.value
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end
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# Defines getter and setter for each setting
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# Then setting values can be read using: Setting.some_setting_name
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# or set using Setting.some_setting_name = "some value"
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@@available_settings.each do |name, params|
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src = <<-END_SRC
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def self.#{name}
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self[:#{name}]
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end
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def self.#{name}?
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self[:#{name}].to_i > 0
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end
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def self.#{name}=(value)
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self[:#{name}] = value
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end
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END_SRC
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class_eval src, __FILE__, __LINE__
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end
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# Helper that returns an array based on per_page_options setting
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def self.per_page_options_array
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per_page_options.split(%r{[\s,]}).collect(&:to_i).select {|n| n > 0}.sort
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end
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# Checks if settings have changed since the values were read
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# and clears the cache hash if it's the case
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# Called once per request
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def self.check_cache
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settings_updated_on = Setting.maximum(:updated_on)
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if settings_updated_on && @cached_cleared_on <= settings_updated_on
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@cached_settings.clear
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@cached_cleared_on = Time.now
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logger.info "Settings cache cleared." if logger
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end
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end
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private
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# Returns the Setting instance for the setting named name
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# (record found in database or new record with default value)
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def self.find_or_default(name)
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name = name.to_s
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raise "There's no setting named #{name}" unless @@available_settings.has_key?(name)
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setting = find_by_name(name)
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setting ||= new(:name => name, :value => @@available_settings[name]['default']) if @@available_settings.has_key? name
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end
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end
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