【发布时间】:2013-05-09 18:22:10
【问题描述】:
我正在将数据从电子表格导入应用数据库。
数据按行解析。每个解析的行看起来像:
{:department=>{
:school=>"Graduate School of Business",
:name=>"Graduate School of Business",
:program=>"MBA Program",
:url=>"http://www.gsb.stanford.edu/mba",
:intro=>"The Stanford MBA Program is a two-year, full-time, residential program.",
:students_number=>"Approximately 80 annually",
:students_with_aids_number=>nil,
:gre_scroe=>nil,
:toefl_score=>nil,
:world_rank=>nil,
:us_rank=>nil,
:without_aid_deadline=>nil,
:with_aid_deadline=>nil,
:salary=>nil,
:institute_id=>1}
}
创建部门:
# att is the hash shown above
department = Department.new(department_params(att))
if !department.save
puts "Error: \n department can't be save: #{department.errors.full_messages}"
end
def department_params params
params.require(:department).permit(:name,:url,:institute_id)
end
但我得到了错误:
no implicit conversion of Symbol into String
指向
params.require(:department).permit(:name,:url,:institute_id)
我该如何解决?谢谢!
【问题讨论】:
-
于君:你还在吗? ;)
标签: ruby-on-rails-4 strong-parameters