1 files changed, 26 insertions, 0 deletions
diff --git a/lib/puppet/rails/inventory_host.rb b/lib/puppet/rails/inventory_host.rb
index 433e54389..10dd62083 100644
--- a/lib/puppet/rails/inventory_host.rb
+++ b/lib/puppet/rails/inventory_host.rb
@@ -3,6 +3,32 @@ require 'puppet/rails/inventory_fact'
 class Puppet::Rails::InventoryHost < ::ActiveRecord::Base
   has_many :facts, :class_name => "Puppet::Rails::InventoryFact", :dependent => :delete_all
 
+  named_scope :has_fact_with_value, lambda { |name,value|
+    {
+      :conditions => ["inventory_facts.name = ? AND inventory_facts.value = ?", name, value],
+      :joins => :facts
+    }
+  }
+
+  named_scope :has_fact_without_value, lambda { |name,value|
+    {
+      :conditions => ["inventory_facts.name = ? AND inventory_facts.value != ?", name, value],
+      :joins => :facts
+    }
+  }
+
+  named_scope :has_fact, lambda { |name|
+    {
+      :conditions => ["inventory_facts.name = ?", name],
+      :joins => :facts
+    }
+  }
+
+  def value_for(fact_name)
+    fact = facts.find_by_name(fact_name)
+    fact ? fact.value : nil
+  end
+
   def facts_to_hash
     facts.inject({}) do |fact_hash,fact|
       fact_hash.merge(fact.name => fact.value)