Interesting Things

Integer("008") != "008".to_i

• The to_i method is what you want, unless you want exceptions or octal numbers.

• Somebody needed help constructing a named_scope where they could reference the count of an associated has_many association. There was some grumbling about using :joins and :group (and if you do this, be sure not to call count on the scope itself without also doing a :select => 'DISTINCT primary_key'). The winning solution was to just put a counter_cache on the association and use the denormalized column instead.