mysql - 将数据对播种到 Rails 应用程序

Question

我试图将 :name, :date 对播种到我的 Rails 应用程序中的表中(通过 seed.rd)...不太确定如何执行此操作...我的尝试如下:

[[ "New Years Day", 2013/01/01 ][ "Easter", 2013/03/31]].each do |holiday|
  Holiday.create!({:name, :date => holiday})
end

Answer 1

选项 1:

[{ :name => "New Years Day", :date => "2013/01/01" },{ :name => "Easter", :date => "2013/03/31"}].each do |holiday|
  Holiday.create!(holiday)
end

选项 2:

[[ "New Years Day", "2013/01/01" ],[ "Easter", "2013/03/31"]].each do |holiday|
  Holiday.create!({:name => holiday[0], :date => holiday[1]})
end

选项 3(实际上不是一个好选择，因为当您超出名称和日期时它会变脏):

{ "New Years Day" => "2013/01/01" , "Easter" => "2013/03/31"}.each do |holiday|
  Holiday.create!({:name => holiday.first, :date => holiday.second})
end