search for: estrapol

Hi, I need to check the uniqueness of an attribute (a doc number) using a condition (a specific year), I''ve found validates_uniqueness_of :number, but I need to tell it I just want to check a specific year. I''ve found :scope but I haven''t really understood it''s meaning, Can I scope on a specific year? Thanks, Enrico -- "The only thing necessary for the

...-> Disk_size - Disk_allocated Logical_size -> sum of logical area sizes Used -> logical area used Free_(Estimated) -> on the basis of allocated chunk, an estrapolation of the free space Data_to_disk_ratio -> ration between the space occuped by a chunk and the real space available ( due to duplication...