Ruby on rails Rails 3、activerecord导入gem、CSV
阅读后,我有一个任务:Ruby on rails Rails 3、activerecord导入gem、CSV,ruby-on-rails,ruby,csv,Ruby On Rails,Ruby,Csv,阅读后,我有一个任务: desc "Import sales" task :import_sales => :environment do sales = File.open(Rails.root.join("public", "system", "xmls", "3", "original", "first.csv"),"r").map do |line| isbn, date, quantity, value, channel = line.split("\,")
desc "Import sales"
task :import_sales => :environment do
sales = File.open(Rails.root.join("public", "system", "xmls", "3", "original", "first.csv"),"r").map do |line|
isbn, date, quantity, value, channel = line.split("\,")
Importsale.new(:isbn => isbn, :date => date, :quantity => quantity, :value => value, :channel => channel)
end
Importsale.import sales
end
一些csv数据如下:
9780953893201,30/5/10,4,25.6,UK Home
9780953893201,25/6/10,3,19.2,UK Home
9780953893201,30/7/10,6,95.94,UK Home
9780953893201,27/8/10,1,15.99,Export
9780953893201,27/8/10,13,207.87,UK Home
9780953893201,27/8/10,1,6.4,UK Home
9780953893201,24/9/10,14,223.86,UK Home
9780953893201,24/9/10,5,32,UK Home
但是rake任务并不是分割CSV文件——我要导入一条记录,最后一个通道包含
UK Home
9780953893201
使用map是否会停止csv解析为行?如果我使用每一行或每一行,我会得到一个“无效参数”错误 因为没有人在写答案
File.readlines(...).map do |line|
...
end
也许你想要File.readlines(…).map do | line |?你做到了!非常感谢。如果你愿意,把它记下来作为答案,我会打勾的。