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1 # redMine - project management software
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2 # Copyright (C) 2006 Jean-Philippe Lang
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3 #
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4 # This program is free software; you can redistribute it and/or
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5 # modify it under the terms of the GNU General Public License
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6 # as published by the Free Software Foundation; either version 2
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7 # of the License, or (at your option) any later version.
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8 #
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9 # This program is distributed in the hope that it will be useful,
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10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 # GNU General Public License for more details.
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13 #
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14 # You should have received a copy of the GNU General Public License
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15 # along with this program; if not, write to the Free Software
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16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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17
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18 class CustomValue < ActiveRecord::Base
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19 belongs_to :custom_field
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20 belongs_to :customized, :polymorphic => true
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21
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22 def after_initialize
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23 if new_record? && custom_field && (customized_type.blank? || (customized && customized.new_record?))
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24 self.value ||= custom_field.default_value
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25 end
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26 end
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27
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28 # Returns true if the boolean custom value is true
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29 def true?
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30 self.value == '1'
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31 end
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32
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33 def editable?
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34 custom_field.editable?
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35 end
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36
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37 def visible?
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38 custom_field.visible?
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39 end
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40
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41 def required?
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42 custom_field.is_required?
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43 end
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44
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45 def to_s
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46 value.to_s
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47 end
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48
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49 protected
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50 def validate
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51 if value.blank?
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52 errors.add(:value, :blank) if custom_field.is_required? and value.blank?
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53 else
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54 errors.add(:value, :invalid) unless custom_field.regexp.blank? or value =~ Regexp.new(custom_field.regexp)
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55 errors.add(:value, :too_short, :count => custom_field.min_length) if custom_field.min_length > 0 and value.length < custom_field.min_length
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56 errors.add(:value, :too_long, :count => custom_field.max_length) if custom_field.max_length > 0 and value.length > custom_field.max_length
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57
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58 # Format specific validations
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59 case custom_field.field_format
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60 when 'int'
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61 errors.add(:value, :not_a_number) unless value =~ /^[+-]?\d+$/
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62 when 'float'
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63 begin; Kernel.Float(value); rescue; errors.add(:value, :invalid) end
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64 when 'date'
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65 errors.add(:value, :not_a_date) unless value =~ /^\d{4}-\d{2}-\d{2}$/
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66 when 'list'
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67 errors.add(:value, :inclusion) unless custom_field.possible_values.include?(value)
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68 end
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69 end
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70 end
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71 end
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