lib/settings.rb in settings-goo-0.2.0 vs lib/settings.rb in settings-goo-0.3.0

@@ -1,9 +1,14 @@
 class Settings < ActiveRecord::Base
+  validates_presence_of :key
   validates_uniqueness_of :key
   after_save :clear_cache
+  after_create :clear_cache_keys
+  #TODO - Only clear cached keys when :key is updated, not :value
+  after_update :clear_cache_keys
   after_destroy :clear_cache
+  after_destroy :clear_cache_keys
 
   def value
     val = self[:value]
     if val
       ActiveSupport::JSON.decode val
@@ -30,11 +35,13 @@
     setting.value = val
     setting.save
   end
   
   def self.keys
-    self.find(:all, :select => 'key', :order => 'key ASC').map{|s| s.key.to_sym}
+    Rails.cache.fetch("settings/settings.keys") {
+      self.find(:all, :select => 'key', :order => 'key ASC').map{|s| s.key.to_sym}
+    }
   end
   
   def self.remove(key)
     key = key.to_s
     setting = Settings.find_by_key(key)
@@ -50,7 +57,11 @@
     Rails.cache.fetch("settings/#{key}") { Settings.find_by_key(key) }
   end
   
   def clear_cache
     Rails.cache.delete("settings/#{key}")
+  end
+  
+  def clear_cache_keys
+    Rails.cache.delete("settings/settings.keys")
   end
 end