Exception on simple model

[japetheape]

Hey Willem,

tried to use your plugin, but when doing on a simple model Ping, it raised an exception on

Ping.olap_drilldown(:created_daily => :period_1)

ActiveRecord::StatementInvalid: Mysql::Error: Unknown column '' in 'where clause': SELECT pings.* FROM pings WHERE (((>= '2009-11-22 00:00:00' AND < '2009-11-23 00:00:00') AND ((>= '2009-11-21 00:00:00' AND < '2009-12-05 00:00:00'))))

enable_active_olap do |olap|
# Easily create a trend dimension
olap.dimension :created_daily, :trend => {
:timestamp_field => :created_at,
:period_length => 1.day,
:period_count => 20
}
end

[sadowski]

Yeah, after the first trend query it 'blanks' on all the column names. I noticed this too.