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@@ -8,6 +8,14 @@
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       has_many :template_groups
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       has_many :templates
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+      PREFERENCE_PATHS = [
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+        'system:theme_folder_path',
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+        'system:captcha_path',
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+        'template:tmpl_file_basepath',
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+        'member:avatar_path',
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+        'member:photo_path'
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+      ]
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+
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       def name
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         self.site_label
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       end
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@@ -27,17 +35,18 @@
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         @preferences
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       end
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+      def root_path=(other)
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+        pattern = Regexp.quote(self.root_path)
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+        PREFERENCE_PATHS.each do |preference|
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+          group, setting = preference.split(':')
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+          self.preferences[group.to_sym][setting.to_sym].gsub!(/^#{pattern}/, other)
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+        end
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+      end
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+
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       def root_path
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         common_elements = nil
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-        preferences = [
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-          'system:theme_folder_path',
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-          'system:captcha_path',
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-          'template:tmpl_file_basepath',
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-          'member:avatar_path',
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-          'member:photo_path'
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-        ]
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-        preferences.each do |preference|
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+        PREFERENCE_PATHS.each do |preference|
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           group, setting = preference.split(':')
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           path = self.preferences[group.to_sym][setting.to_sym].split('/')
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@@ -31,8 +31,17 @@
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       end
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     end
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+    it "should save its associated preferences when it is saved"
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+    
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     it "should know the current root path" do
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       @site.root_path.should == '/home/www/ExpressionEngine1.6.2'
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+    end
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+    
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+    it "should update the root path when set" do
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+      path = '/new/root/path'
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+      @site.root_path = path
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+      
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+      @site.root_path.should == path
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     end
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   end