Hello everyone, I''m fairly new to Rails (writing my first real app) and brand new to this mailing list. I''ve got a rails/sql error I just can''t seem to solve. It''s probably really simple, but I''m been googling and reading for a day and have made zero progress on it. Hopefully someone on this list can shine some light on my problem, or point me in the right direction. Thanks! Nick Ciske Environment ------------------------ Rails 1.1.3 Windows XP/WebBrick SQL Server Express 2005 Code ------------------------ Models: Project has_many :quotes Quote has_many :line_items LineItem belongs_to :quote ... @project = Project.new(params[:project]) @quote=Quote.new(params[:quote]) @line_items=[] if params[:line_item1][''quantity_id''] != '''' @line_items << LineItem.new(params[:line_item1]) end if params[:line_item2][''quantity_id''] != '''' @line_items << LineItem.new(params[:line_item2]) end ... @quote.project=@project @quote.line_items << @line_items @quote.save Problem ------------------------ I can get the project and quote models to save to the DB just fine, but when I try to add the line_items array to the quote object (so they are saved as child records) I get a nasty SQL error. Rails appears to be trying to save the internal object reference to the DB, instead of the attributes. I can''t figure out why, or how to fix it. DBI::DatabaseError: Execute OLE error code:80040E14 in Microsoft OLE DB Provider for SQL Server The name "#" is not permitted in this context. Valid expressions are constants, constant expressions, and (in some contexts) variables. Column names are not permitted. HRESULT error code:0x80020009 Exception occurred.: INSERT INTO line_items ([cost_total], [quote_id], [text_pounds_order], [freight_weight], [quantity_id], [cost_overs], [text_pounds_overs], [cost_each], [cost_freight]) VALUES(#<Quote:0x355e998>, #<Quote:0x3552e18>, #<Quote:0x355b7a0>, #<Quote:0x354ce30>, #<Quote:0x3549c38>, #<Quote:0x3546a58>, #<Quote:0x3543878>, #<Quote:0x3540590>, #<Quote:0x353d3b0>)