Multiplos semestres

config/application.rb

@@ -6,6 +6,8 @@ App.webmaster_email = "webmaster@wikiufc.gelsol.org"
 App.default_host = "wikiufc.gelsol.org"
 App.base_path = ""
 
+App.current_period = "2008.1"
+
 # Limites
 App.max_upload_file_size = 5.megabytes
 

config/initializers/nasty_hacks.rb

@@ -8,3 +8,19 @@ class String
 		Float self rescue false
 	end
 end
+
+class Array
+  def add_condition! (condition, conjunction = 'AND')
+    if String === condition
+      add_condition!([condition])
+    elsif Hash === condition
+      add_condition!([condition.keys.map { |attr| "#{attr}=?" }.join(' AND ')] + condition.values)
+    elsif Array === condition
+      self[0] = "(#{self[0]}) #{conjunction} (#{condition.shift})" unless empty?
+      (self << condition).flatten!
+    else
+      raise "don't know how to handle this condition type"
+    end
+    self
+  end
+end