好的,所以我正在尝试导入一个 csv,我需要通过 rails 将其插入到数据库中,或者无论如何这将是最快的,所以我决定创建一个虚拟 rails 应用程序来进行导入。下面是我从正在阅读的博客中获得的一些代码。
def upload
table = ImportTable.new :original_path => params[:upload][:csv].original_path
row_index = 0
FasterCSV.parse(params[:upload][:csv]) do |cells|
column_index = 0
cells.each do |cell|
table.import_cells.build :column_index => column_index, :row_index => row_index, :contents => cell
column_index += 1
end
row_index += 1
end
table.save
redirect_to import_table_path(table)
end
一切都很好,但 csv 的格式并不是让这个过程变得容易。这是格式和我需要发生的事情。
NELCO 2GB RAM, 250GB HDD, DVD-RW, WIN7 PRO / XP LOADED $575.00 1 $575.00 2 $1,150.00 3 $1,725.00 4 $2,300.00 5 $2,875.00
TOUCHSCREEN, 15" LCD, SPKRS $489.00 1 $489.00 2 $978.00 3 $1,467.00 4 $1,956.00 5 $2,445.00
THERMAL RECEIPT PRINTER FRONT LOADING $324.00 1 $324.00 2 $648.00 3 $972.00 4 $1,296.00 5 $1,620.00
IMPACT PRINTER, SERIAL $285.00 1 $285.00 1 $285.00 1 $285.00 1 $285.00 1 $285.00
CASH DRAWER, 16x16 $127.00 1 $127.00 1 $127.00 1 $127.00 2 $254.00 2 $254.00
RESTAURANTS PRO LICENSE $699.00 1 $699.00 2 $1,398.00 2 $1,398.00 2 $1,398.00 2 $1,398.00
RESTAURANTS PRO LICENSE FOR ADDITIONAL STATIONS BEYOND 2 $535.00 $0.00 $0.00 1 $535.00 2 $1,070.00 3 $1,605.00
CREDIT CARD PROCESSING SOFTWARE + CARD READER $79.00 1 $79.00 2 $158.00 3 $237.00 4 $316.00 5 $395.00
FIREWALL & STATEFUL PACKET INSPECTION $89.00 $0.00 1 $89.00 1 $89.00 1 $89.00 1 $89.00
STANDARD SUPPORT PLAN FIRST STATION $275.00 1 $275.00 1 $275.00 1 $275.00 1 $275.00 1 $275.00
SUPPORT PLAN ADDT'L STATIONS $100.00 $0.00 1 $100.00 2 $200.00 3 $300.00 4 $400.00
PREPAID TRAINING & SUPPORT BUNDLE (1 HR.) $89.00 1 $89.00 1 $89.00 1 $89.00 1 $89.00 1 $89.00
抱歉,如果它难以阅读,我已尽力格式化。每行中的第一个元素是产品的名称,因此我需要将其存储在 Product.name 中,第二个元素是价格,以便将其存储在 Product.price 中。下一个是我遇到问题的地方
在循环
cells.each do |cell|
我需要检查我是否在行中的第三个元素并做某事和第五个元素并做另一件事,但我尝试了 cell[2] 并得到了一些像这样的时髦
Rails.logger.info "====3rd postion==========#{cell[3]}"
=> ====3rd postion===========79