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1 | 1 | # Redmine - project management software |
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2 | 2 | # Copyright (C) 2006-2011 Jean-Philippe Lang |
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3 | 3 | # |
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4 | 4 | # This program is free software; you can redistribute it and/or |
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5 | 5 | # modify it under the terms of the GNU General Public License |
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6 | 6 | # as published by the Free Software Foundation; either version 2 |
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7 | 7 | # of the License, or (at your option) any later version. |
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8 | 8 | # |
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9 | 9 | # This program is distributed in the hope that it will be useful, |
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10 | 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | 12 | # GNU General Public License for more details. |
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13 | 13 | # |
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14 | 14 | # You should have received a copy of the GNU General Public License |
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15 | 15 | # along with this program; if not, write to the Free Software |
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16 | 16 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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17 | 17 | |
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18 | 18 | class Enumeration < ActiveRecord::Base |
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19 | 19 | default_scope :order => "#{Enumeration.table_name}.position ASC" |
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20 | 20 | |
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21 | 21 | belongs_to :project |
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22 | 22 | |
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23 | 23 | acts_as_list :scope => 'type = \'#{type}\'' |
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24 | 24 | acts_as_customizable |
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25 | 25 | acts_as_tree :order => 'position ASC' |
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26 | 26 | |
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27 | 27 | before_destroy :check_integrity |
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28 | before_save :check_default | |
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28 | 29 | |
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29 | 30 | validates_presence_of :name |
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30 | 31 | validates_uniqueness_of :name, :scope => [:type, :project_id] |
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31 | 32 | validates_length_of :name, :maximum => 30 |
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32 | 33 | |
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33 | 34 | named_scope :shared, :conditions => { :project_id => nil } |
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34 | 35 | named_scope :active, :conditions => { :active => true } |
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35 | 36 | named_scope :named, lambda {|arg| { :conditions => ["LOWER(#{table_name}.name) = LOWER(?)", arg.to_s.strip]}} |
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36 | 37 | |
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37 | 38 | def self.default |
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38 | 39 | # Creates a fake default scope so Enumeration.default will check |
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39 | 40 | # it's type. STI subclasses will automatically add their own |
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40 | 41 | # types to the finder. |
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41 | 42 | if self.descends_from_active_record? |
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42 | 43 | find(:first, :conditions => { :is_default => true, :type => 'Enumeration' }) |
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43 | 44 | else |
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44 | 45 | # STI classes are |
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45 | 46 | find(:first, :conditions => { :is_default => true }) |
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46 | 47 | end |
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47 | 48 | end |
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48 | 49 | |
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49 | 50 | # Overloaded on concrete classes |
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50 | 51 | def option_name |
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51 | 52 | nil |
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52 | 53 | end |
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53 | 54 | |
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54 | def before_save | |
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55 | def check_default | |
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55 | 56 | if is_default? && is_default_changed? |
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56 | 57 | Enumeration.update_all("is_default = #{connection.quoted_false}", {:type => type}) |
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57 | 58 | end |
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58 | 59 | end |
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59 | 60 | |
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60 | 61 | # Overloaded on concrete classes |
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61 | 62 | def objects_count |
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62 | 63 | 0 |
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63 | 64 | end |
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64 | 65 | |
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65 | 66 | def in_use? |
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66 | 67 | self.objects_count != 0 |
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67 | 68 | end |
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68 | 69 | |
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69 | 70 | # Is this enumeration overiding a system level enumeration? |
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70 | 71 | def is_override? |
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71 | 72 | !self.parent.nil? |
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72 | 73 | end |
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73 | 74 | |
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74 | 75 | alias :destroy_without_reassign :destroy |
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75 | 76 | |
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76 | 77 | # Destroy the enumeration |
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77 | 78 | # If a enumeration is specified, objects are reassigned |
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78 | 79 | def destroy(reassign_to = nil) |
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79 | 80 | if reassign_to && reassign_to.is_a?(Enumeration) |
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80 | 81 | self.transfer_relations(reassign_to) |
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81 | 82 | end |
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82 | 83 | destroy_without_reassign |
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83 | 84 | end |
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84 | 85 | |
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85 | 86 | def <=>(enumeration) |
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86 | 87 | position <=> enumeration.position |
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87 | 88 | end |
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88 | 89 | |
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89 | 90 | def to_s; name end |
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90 | 91 | |
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91 | 92 | # Returns the Subclasses of Enumeration. Each Subclass needs to be |
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92 | 93 | # required in development mode. |
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93 | 94 | # |
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94 | 95 | # Note: subclasses is protected in ActiveRecord |
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95 | 96 | def self.get_subclasses |
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96 | 97 | @@subclasses[Enumeration] |
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97 | 98 | end |
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98 | 99 | |
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99 | 100 | # Does the +new+ Hash override the previous Enumeration? |
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100 | 101 | def self.overridding_change?(new, previous) |
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101 | 102 | if (same_active_state?(new['active'], previous.active)) && same_custom_values?(new,previous) |
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102 | 103 | return false |
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103 | 104 | else |
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104 | 105 | return true |
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105 | 106 | end |
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106 | 107 | end |
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107 | 108 | |
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108 | 109 | # Does the +new+ Hash have the same custom values as the previous Enumeration? |
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109 | 110 | def self.same_custom_values?(new, previous) |
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110 | 111 | previous.custom_field_values.each do |custom_value| |
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111 | 112 | if custom_value.value != new["custom_field_values"][custom_value.custom_field_id.to_s] |
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112 | 113 | return false |
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113 | 114 | end |
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114 | 115 | end |
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115 | 116 | |
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116 | 117 | return true |
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117 | 118 | end |
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118 | 119 | |
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119 | 120 | # Are the new and previous fields equal? |
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120 | 121 | def self.same_active_state?(new, previous) |
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121 | 122 | new = (new == "1" ? true : false) |
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122 | 123 | return new == previous |
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123 | 124 | end |
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124 | 125 | |
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125 | 126 | private |
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126 | 127 | def check_integrity |
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127 | 128 | raise "Can't delete enumeration" if self.in_use? |
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128 | 129 | end |
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129 | 130 | |
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130 | 131 | end |
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131 | 132 | |
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132 | 133 | # Force load the subclasses in development mode |
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133 | 134 | require_dependency 'time_entry_activity' |
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134 | 135 | require_dependency 'document_category' |
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135 | 136 | require_dependency 'issue_priority' |
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