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在运行迁移后运行我的应用程序时出现此错误，其中我删除了一列并添加了 2 个新列。我收到此错误

    Internal Server Error can't convert String into Integer

在我的应用程序的每个视图/页面上？我是新来的轨道。需要帮忙。提前致谢。

    [2013-11-07 04:26:57] ERROR TypeError: can't convert String into Integer
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.1.1/lib/active_support/descendants_tracker.rb:22:in `delete'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.1.1/lib/active_support/descendants_tracker.rb:22:in `block in clear'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.1.1/lib/active_support/descendants_tracker.rb:20:in `each'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.1.1/lib/active_support/descendants_tracker.rb:20:in `clear'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.1.1/lib/rails/application/bootstrap.rb:56:in `block (2 levels) in <module:Bootstrap>'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.1.1/lib/active_support/callbacks.rb:404:in `_run_cleanup_callbacks'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.1.1/lib/active_support/callbacks.rb:81:in `run_callbacks'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/actionpack-3.1.1/lib/action_dispatch/middleware/reloader.rb:51:in `cleanup!'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/actionpack-3.1.1/lib/action_dispatch/middleware/reloader.rb:62:in `close'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.3.5/lib/rack/body_proxy.rb:14:in `close'

    /home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.1.1/lib/rails/rack/content_length.rb:30:in `call'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.1.1/lib/rails/rack/log_tailer.rb:14:in `call'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.3.5/lib/rack/handler/webrick.rb:59:in `service'
/home/faraz/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service'
/home/faraz/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run'
/home/faraz/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread'
    [2013-11-07 04:27:04] ERROR TypeError: can't convert String into Integer
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.1.1/lib/active_support/descendants_tracker.rb:22:in `delete'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.1.1/lib/active_support/descendants_tracker.rb:22:in `block in clear'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.1.1/lib/active_support/descendants_tracker.rb:20:in `each'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.1.1/lib/active_support/descendants_tracker.rb:20:in `clear'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.1.1/lib/rails/application/bootstrap.rb:56:in `block (2 levels) in <module:Bootstrap>'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.1.1/lib/active_support/callbacks.rb:404:in `_run_cleanup_callbacks'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.1.1/lib/active_support/callbacks.rb:81:in `run_callbacks'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/actionpack-3.1.1/lib/action_dispatch/middleware/reloader.rb:51:in `cleanup!'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/actionpack-3.1.1/lib/action_dispatch/middleware/reloader.rb:62:in `close'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.3.5/lib/rack/body_proxy.rb:14:in `close'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.1.1/lib/rails/rack/content_length.rb:30:in `call'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/railties-3.1.1/lib/rails/rack/log_tailer.rb:14:in `call'
/home/faraz/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.3.5/lib/rack/handler/webrick.rb:59:in `service'
/home/faraz/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service'
/home/faraz/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run'
/home/faraz/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread

我运行了这个迁移

class AddHashedColumns < ActiveRecord::Migration
  def change
    remove_column :i_users, :password
    add_column :i_users, :hashed_password, :string
    add_column :i_users, :salt, :string 
  end
end

我的模型代码是这个

require 'digest/sha1'

class IUser < ActiveRecord::Base

# a non database attribute
attr_accessor :password

has_one :e_user
has_one :j_user
has_one :s_user

validates_presence_of :first_name
validates_presence_of :last_name
#validates :password, presence: true, :length => { :minimum => 6}
validates_uniqueness_of :email, :message => ": This email is already registered!"
validates_presence_of :email

    #validate password only on create, i.e. on update user can update other fields
    #without changing password
    validates_length_of :password, :within =>6..30, :on => :create

before_save :create_hashed_password
after_save :clear_password

attr_protected :hashed_password, :salt

def self.authenticate(email="", password="")

    user = IUser.find_by_email(email)

    if user && user.hashed_password==IUser.hash_with_salt(password, user.salt)
        return user
    else
        return false
    end
end

def self.make_salt(email="")
    Digest::SHA1.hexdigest("Use #{email} with #{Time.now} to make a solid salt!")
end

def self.hash_with_salt(password="", salt="")
    Digest::SHA1.hexdigest("Put #{salt} on the #{password}")
end

def self.hash(password="")
    Digest::SHA1.hexdigest(password)
end

private

def create_hashed_password
    #when password is present, we hash it
    unless password.blank?
        #make a salt, if not made yet
        self.salt = IUser.make_salt(email) if salt.blank?
        self.hashed_password = IUser.hash_with_salt(password, salt)
    end
end

def clear_password
    self.password = nil
end
end

这是我的宝石文件

    #---------------------------------GEM FILE      ---------------------------------------------
    source 'http://rubygems.org'


   # Bundle edge Rails instead:
   # gem 'rails', :git => 'git://github.com/rails/rails.git'

   ruby '1.9.3'
   gem  'mysql2'

   # gem 'rails', '3.2.14'
# gem install activerecord-mysql2-adapter


# Use unicorn as the web server
# gem 'unicorn'

# Deploy with Capistrano
# gem 'capistrano'

# To use debugger (ruby-debug for Ruby 1.8.7+, ruby-debug19 for Ruby 1.9.2+)
# gem 'ruby-debug'
# gem 'ruby-debug19', :require => 'ruby-debug'

# Bundle the extra gems:
# gem 'bj'
# gem 'nokogiri'
# gem 'sqlite3-ruby', :require => 'sqlite3'
# gem 'aws-s3', :require => 'aws/s3'

# Bundle gems for the local environment. Make sure to
# put test-only gems in this group so their generators
# and rake tasks are available in development mode:
# group :development, :test do
#   gem 'webrat'
# end

gem "hirb"
#gem "will_paginate"
#gem "kaminari"
#gem 'rd_searchlogic', :require => 'searchlogic', :git => 'git://github.com/railsdog/searchlogic.git'
#gem "searchlogic"
#gem "activesupport"

gem "devise"
gem "cancan"
gem "jquery-rails"
#gem "rspec-rails", ">= 2.0.1", :group => [:development, :test]
#gem "capybara", :group => [:development, :test]
gem 'twitter-bootstrap-rails', :git => 'http://github.com/seyhunak/twitter-bootstrap-rails.git'

#------------------------------------------------------------------------------------------------------------------------------------

我试图在 Firefox 和 Chromium 上运行我的应用程序，也清除了 cookie 仍然出现相同的错误。

4

1 回答 1

0

我使用旧版本的项目并使用应用了上述给定迁移的数据库解决了该错误。然后我开始在我的项目中输入模型的新代码，然后运行项目，错误消失了！谢谢

于 2013-11-10T19:07:11.330 回答