Ruby on Rails将CSV导入MySQL

新手问题….试图在rails中启动项目.我有不同的csv格式的电子表格我想导入MySQL数据库,以便能够操纵数据.在浏览stackoverflow,谷歌等之后,我写了一个rake任务,需要更快的工作才能完成这项工作.我一直在收到错误,希望...

新手问题….

试图在rails中启动项目.我有不同的csv格式的电子表格我想导入MySQL数据库,以便能够操纵数据.

在浏览stackoverflow,谷歌等之后,我写了一个rake任务,需要更快的工作才能完成这项工作.我一直在收到错误,希望你能提供帮助.

…
好吧所以我改变了代码使用’csv’vs’fastcsv’…仍然得到错误.见下文

耙文件的新代码(取3)：

require 'csv'

desc "Import gac from csv file"
task :import => [:environment] do

  file = "gac.csv"

  CSV.foreach(file, :headers => true) do |row|
    Institution.create({
    :institution_name => row[0],
    :website => row[1],    
    :email => row[2],
    :category_1 => row[3],
    :category_2 => row[4],
    :category_3 => row[5],
    :category_4 => row[6],
    :category_5 => row[7],
    :category_6 => row[8],
    :category_7 => row[9],
    :category_8 => row[10],
    :category_9 => row[11],
    :category_10 => row[12],
    :category_11 => row[13],
    :institution_description => row[14]
    })
  end
end

错误代码：

Daves-MacBook-Pro:vendor dave$rake import --trace
** Invoke import (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute import
rake aborted!
invalid byte sequence in UTF-8
/Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/csv.rb:1855:in `sub!'
/Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/csv.rb:1855:in `block in shift'
/Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/csv.rb:1849:in `loop'
/Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/csv.rb:1849:in `shift'
/Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/csv.rb:1791:in `each'
/Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/csv.rb:1208:in `block in foreach'
/Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/csv.rb:1354:in `open'
/Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/csv.rb:1207:in `foreach'
/Users/dave/rails_projects/vendor/lib/tasks/import.rake:8:in `block in <top (required)>'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `call'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `block in execute'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `each'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `execute'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/task.rb:158:in `block in invoke_with_call_chain'
/Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/task.rb:151:in `invoke_with_call_chain'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/task.rb:144:in `invoke'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/application.rb:116:in `invoke_task'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `block (2 levels) in top_level'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `each'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `block in top_level'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/application.rb:88:in `top_level'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/application.rb:66:in `block in run'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/lib/rake/application.rb:63:in `run'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.9.2.2/bin/rake:33:in `<top (required)>'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/bin/rake:19:in `load'
/Users/dave/.rvm/gems/ruby-1.9.3-p0/bin/rake:19:in `<main>'
Tasks: TOP => import

解决方法:

确保您在app / models中定义了Institution模型类和/或确保您已运行db migration(s)(rake db：migrate)来创建INSTIT表 – 假设您使用了生成器(或scaffold)创建模型.