1 | require 'rss/taxonomy'
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2 | require 'rss/maker/1.0'
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3 | require 'rss/maker/dublincore'
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4 |
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5 | module RSS
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6 | module Maker
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7 | module TaxonomyTopicsModel
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8 | def self.append_features(klass)
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9 | super
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10 |
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11 | klass.add_need_initialize_variable("taxo_topics", "make_taxo_topics")
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12 | klass.add_other_element("taxo_topics")
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13 | klass.module_eval(<<-EOC, __FILE__, __LINE__ + 1)
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14 | attr_reader :taxo_topics
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15 | def make_taxo_topics
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16 | self.class::TaxonomyTopics.new(@maker)
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17 | end
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18 |
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19 | def setup_taxo_topics(rss, current)
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20 | @taxo_topics.to_rss(rss, current)
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21 | end
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22 | EOC
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23 | end
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24 |
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25 | def self.install_taxo_topics(klass)
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26 | klass.module_eval(<<-EOC, *Utils.get_file_and_line_from_caller(1))
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27 | class TaxonomyTopics < TaxonomyTopicsBase
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28 | def to_rss(rss, current)
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29 | if current.respond_to?(:taxo_topics)
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30 | topics = current.class::TaxonomyTopics.new
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31 | bag = topics.Bag
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32 | @resources.each do |resource|
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33 | bag.lis << RDF::Bag::Li.new(resource)
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34 | end
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35 | current.taxo_topics = topics
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36 | end
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37 | end
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38 | end
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39 | EOC
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40 | end
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41 |
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42 | class TaxonomyTopicsBase
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43 | include Base
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44 |
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45 | attr_reader :resources
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46 | def_array_element("resources")
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47 | end
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48 | end
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49 |
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50 | module TaxonomyTopicModel
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51 | def self.append_features(klass)
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52 | super
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53 |
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54 | klass.add_need_initialize_variable("taxo_topics", "make_taxo_topics")
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55 | klass.add_other_element("taxo_topics")
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56 | klass.module_eval(<<-EOC, __FILE__, __LINE__ + 1)
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57 | attr_reader :taxo_topics
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58 | def make_taxo_topics
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59 | self.class::TaxonomyTopics.new(@maker)
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60 | end
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61 |
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62 | def setup_taxo_topics(rss, current)
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63 | @taxo_topics.to_rss(rss, current)
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64 | end
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65 |
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66 | def taxo_topic
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67 | @taxo_topics[0] and @taxo_topics[0].value
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68 | end
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69 |
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70 | def taxo_topic=(new_value)
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71 | @taxo_topic[0] = self.class::TaxonomyTopic.new(self)
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72 | @taxo_topic[0].value = new_value
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73 | end
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74 | EOC
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75 | end
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76 |
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77 | def self.install_taxo_topic(klass)
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78 | klass.module_eval(<<-EOC, *Utils.get_file_and_line_from_caller(1))
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79 | class TaxonomyTopics < TaxonomyTopicsBase
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80 | class TaxonomyTopic < TaxonomyTopicBase
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81 | DublinCoreModel.install_dublin_core(self)
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82 | TaxonomyTopicsModel.install_taxo_topics(self)
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83 |
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84 | def to_rss(rss, current)
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85 | if current.respond_to?(:taxo_topics)
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86 | topic = current.class::TaxonomyTopic.new(value)
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87 | topic.taxo_link = value
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88 | taxo_topics.to_rss(rss, topic) if taxo_topics
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89 | current.taxo_topics << topic
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90 | setup_other_elements(rss)
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91 | end
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92 | end
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93 |
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94 | def current_element(rss)
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95 | super.taxo_topics.last
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96 | end
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97 | end
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98 | end
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99 | EOC
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100 | end
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101 |
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102 | class TaxonomyTopicsBase
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103 | include Base
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104 |
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105 | def_array_element("taxo_topics")
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106 |
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107 | def new_taxo_topic
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108 | taxo_topic = self.class::TaxonomyTopic.new(self)
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109 | @taxo_topics << taxo_topic
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110 | if block_given?
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111 | yield taxo_topic
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112 | else
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113 | taxo_topic
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114 | end
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115 | end
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116 |
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117 | def to_rss(rss, current)
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118 | @taxo_topics.each do |taxo_topic|
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119 | taxo_topic.to_rss(rss, current)
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120 | end
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121 | end
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122 |
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123 | class TaxonomyTopicBase
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124 | include Base
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125 | include DublinCoreModel
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126 | include TaxonomyTopicsModel
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127 |
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128 | attr_accessor :value
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129 | add_need_initialize_variable("value")
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130 | alias_method(:taxo_link, :value)
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131 | alias_method(:taxo_link=, :value=)
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132 |
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133 | def have_required_values?
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134 | @value
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135 | end
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136 | end
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137 | end
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138 | end
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139 |
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140 | class RSSBase
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141 | include TaxonomyTopicModel
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142 | end
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143 |
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144 | class ChannelBase
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145 | include TaxonomyTopicsModel
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146 | end
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147 |
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148 | class ItemsBase
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149 | class ItemBase
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150 | include TaxonomyTopicsModel
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151 | end
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152 | end
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153 |
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154 | class RSS10
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155 | TaxonomyTopicModel.install_taxo_topic(self)
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156 |
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157 | class Channel
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158 | TaxonomyTopicsModel.install_taxo_topics(self)
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159 | end
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160 |
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161 | class Items
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162 | class Item
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163 | TaxonomyTopicsModel.install_taxo_topics(self)
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164 | end
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165 | end
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166 | end
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167 |
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168 | class RSS09
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169 | TaxonomyTopicModel.install_taxo_topic(self)
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170 |
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171 | class Channel
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172 | TaxonomyTopicsModel.install_taxo_topics(self)
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173 | end
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174 |
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175 | class Items
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176 | class Item
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177 | TaxonomyTopicsModel.install_taxo_topics(self)
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178 | end
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179 | end
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180 | end
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181 | end
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182 | end
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