Attr accessible in rails 4

[devmug]

Quick Start

In your model:

class User < ActiveRecord::Base
attr_accessible :avatar

Could you please put a note for rails 4 users not to add attr accessible .. causes a
undefined method `flush_errors' for #<ActionDispatch::Http::UploadedFile
and it took me a good 2 hours to work out what was happening.

Thanks

[AndreyPristupa]

I got this error too. devmug are you solved the problem?

[AndreyPristupa]

UPD. Solved, in Model, u must place the paperclip validation after all others validations

[sikachu]

@AndreyPristupa we'd love to have more info on this. By 'others validation', what are the rest of validations you have in there?

Also, I assume you don't need attr_accessible if you already use Strong Parameters?

[AndreyPristupa]

validates :name, :start_at, :end_at, :description, presence: true
validates :name, length: { in: 4..100, too_long: I18n.t(:too_long_field), too_short: I18n.t(:too_short_field) }
validates :description, length: { in:100...5000, too_long: I18n.t(:too_long_field), too_short: I18n.t(:too_short_field) }

has_attached_file :image, :styles => { :medium => '300x300>', :thumb => '100x100>' }, :default_url => '/images/:style/missing.png'
validates_attachment_content_type :image, :content_type => /\Aimage/.*\Z/

Work's fine. But:

has_attached_file :image, :styles => { :medium => '300x300>', :thumb => '100x100>' }, :default_url => '/images/:style/missing.png'
validates_attachment_content_type :image, :content_type => /\Aimage/.*\Z/

validates :name, :start_at, :end_at, :description, presence: true
validates :name, length: { in: 4..100, too_long: I18n.t(:too_long_field), too_short: I18n.t(:too_short_field) }
validates :description, length: { in:100...5000, too_long: I18n.t(:too_long_field), too_short: I18n.t(:too_short_field) }

doesn't work, trow: undefined method 'flush_errors'

[maclover7]

Hi @AndreyPristupa and @devmug ! Is this still an issue for you in Paperclip; I know this issue is from approximately 2 years ago. If it is still an issue, can you please provide the code that's causing you the error? Thanks!

[tute]

Given there's no activity around this issue any more, I hope things are working well for you now. I’ll close the issue, happy to continue further discussion if we can find a fix for it. Thanks for your input!