I'm having an extremely frustrating time getting some images to upload. They are obviously being uploaded as rack/multipart but the way that I'm iterating over my params hash must be causing the problem. I could REALLY use some help, so I can stop pulling out my hair.

So I've got a params hash that looks like this:

Parameters: {"commit"=>"Submit", "sighting_report"=>[{"number_seen"=>"1", "picture"=>#<File:/var/folders/IX/IXXrbzpCHkq68OuyY-yoI++++TI/-Tmp-/RackMultipart.85991.5>, "species_id"=>"2"}], "authenticity_token"=>"u0eN5MAfvGWtfEzrqBt4qfrL54VJ9SGX0jFLZCJ8iRM=", "sighting"=>{"sighting_date(2i)"=>"6", "name"=>"", "sighting_date(3i)"=>"5", "county"=>"0", "notes"=>"", "location"=>"", "sighting_date(1i)"=>"2010", "email"=>""}}

My form can have multiple sighting reports with multiple pictures in each sighting report. Here's my controller code:

def create_multiple
    @report = Report.new
    @report.name = params[:sighting]["name"]
    @report.sighting_date = Date.civil(params[:sighting][:"sighting_date(1i)"].to_i, params[:sighting][:"sighting_date(2i)"].to_i, params[:sighting][:"sighting_date(3i)"].to_i)
    @report.county_id = params[:sighting][:county]
    @report.location = params[:sighting][:location]
    @report.notes = params[:sighting][:notes]
    @report.email = params[:sighting][:email]
    @report.save!
    @report.reload
    for sr in params[:sighting_report] do
        sighting = SightingReport.new
        sighting.report_id = @report.id
        sighting.species_id = sr[:species_id]
        sighting.number_seen = sr[:number_seen]
        sighting.save
        if sr[:picture]
            sighting.reload
            for pic in sr[:picture] do
                p = SpeciesPic.new
                p.uploaded_picture = pic
                p.species_id = sighting.species_id
                p.report_id = @report.id
                p.save!
            end
        end
    end
    redirect_to :action => 'new_multiple'
end