手动更新安装由Carrierwave上传属性 [英] Manually updating attributes mounted by Carrierwave Uploader

问题描述

我无法使用model.update_attribute上安装由carrierwave上传的属性。 SQL语句不会接受该值，并增加了空的占位符。如果我从模型类中删除mount_uploader声明它工作正常。我故障排除的东西从控制台，并试图同时播种数据库添加一些属性，这是阻碍我的努力。想法？

I am unable to use model.update_attribute on an attribute that is mounted by a carrierwave uploader. The SQL statement wont accept the value and adds NULL to the placeholder. If I remove the mount_uploader statement from the model class it works as normal. I am troubleshooting things from the console and trying to add some attributes while seeding the DB and this is thwarting my efforts. Ideas?

感谢。

更新： 相关code：

class Profile < ActiveRecord::Base
  belongs_to :user
  has_and_belongs_to_many :sports
  has_and_belongs_to_many :interests
  has_and_belongs_to_many :minors
  has_and_belongs_to_many :majors
  has_and_belongs_to_many :events
  has_and_belongs_to_many :groups
  attr_accessible :description, :username, :avatar, :bio, :first_name, :last_name, :major, :minor, :graduation_date, :living_situation, :phone, :major_ids, :minor_ids, :sport_ids
  mount_uploader :avatar, AvatarUploader
end

我只是想重写：从数据库种子文件的头像字符串，而从像这样的轨道控制台测试： Profile.first.update_attribute（：头像，'富'）

I am simply trying to rewrite the :avatar string from a db seed file and while testing from the rails console like so: Profile.first.update_attribute(:avatar, 'foo')

当我注释掉mount_uploader线两者的工作。

Both work when I comment out the mount_uploader line.

是否加入mount_uploader方法冻结字符串或使之不可变的？

Does adding the mount_uploader method freeze the string or make it immutable?

推荐答案

我找到了解决这个。

我的问题是，我是不是能够改变属性安装我的CarrierWave上传从我seeds.rb文件。

My issue was that I was not able to alter the attribute mounted my the CarrierWave uploader from my seeds.rb file.

本作品：

user.profile.update_column(:avatar, 'foobar/image.png')

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