2 files changed, 57 insertions, 0 deletions
diff --git a/certs/app/models/.gitkeep b/certs/app/models/.gitkeep
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/certs/app/models/.gitkeep
diff --git a/certs/app/models/cert.rb b/certs/app/models/cert.rb
new file mode 100644
index 0000000..40efde9
--- /dev/null
+++ b/certs/app/models/cert.rb
@@ -0,0 +1,57 @@
+class Cert < CouchRest::Model::Base
+
+  use_database 'certs'
+
+  timestamps!
+
+  property :random, Float, :accessible => false
+
+  before_validation :set_random, :attach_zip, :on => :create
+
+  validates :random, :presence => true,
+    :numericality => {:greater_than => 0, :less_than => 1}
+
+  validates :zip_attachment, :presence => true
+
+  design do
+    view :by_random
+  end
+
+  class << self
+    def sample
+      self.by_random.startkey(rand).first || self.by_random.first
+    end
+
+    def pick_from_pool
+      cert = self.sample || self.create!
+      cert.destroy
+      return cert
+    rescue RESOURCE_NOT_FOUND
+      retry if Cert.by_random.count > 0
+      raise RECORD_NOT_FOUND
+    end
+
+  end
+
+  def set_random
+    self.random = rand
+  end
+
+  def attach_zip
+    file = File.open(Rails.root.join("config", "cert"))
+    self.create_attachment :file => file, :name => zipname
+  end
+
+  def zipname
+    'cert.txt'
+  end
+
+  def zip_attachment
+    attachments[zipname]
+  end
+
+  def zipped
+    read_attachment(zipname)
+  end
+
+end