gistfile1.rb

# Ensure apps are created for the organization atomically by using find_and_modify
result = App.collection.find_and_modify({
    :query => {
    	:bundle_identifier => params[:id].downcase,
    	:organization_id => current_organization._id },
    :update => {
    	"$set" => {
    		:bundle_identifier => params[:id].downcase,
    		:organization_id => current_organization._id } },
    :new => true,
    :upsert => true })

# The model has a bunch of defaults, however Mongoid does not set them on
# find_and_modify calls, so we have to be clever to update the defaults while
# keeping things atomic
if result["builds"].nil? && result["build_opts"].nil? && result["status"].nil? &&
	result["platform"].nil? && result["dc"].nil? && result["idc"].nil?
    result = App.collection.find_and_modify({
        :query => {
   	    :bundle_identifier => result["bundle_identifier"],
    	    :organization_id => result["organization_id"],
    	    :builds => nil,
    	    :build_opts => nil,
    	    :status => nil,
    	    :platform => nil,
    	    :dc => nil,
    	    :idc => nil },
        :update => {
    	    "$set" => {
    		:created_at => Time.now.utc,
    		:builds => [],
    		:build_opts => {},
    		:status => :new,
    		:platform => :ios,
    		:dc => 0,
    		:idc => 0 } },
        :fields => { :id => 1 } }
    )
end