rake db:migrate 无法使用回形针

Question

我正在使用 Paperclip，我正在尝试收集我的迁移文件，但出现错误：

SyntaxError: /Users/Brendon/Desktop/savings/app/models/user.rb:5: syntax error, unexpected '{', expecting keyword_end
...attached_file :image, :styles { large: '600x600>', medium: '...
...                               ^
/Users/Brendon/Desktop/savings/app/models/user.rb:5: syntax error, unexpected ',', expecting keyword_end
...e, :styles { large: '600x600>', medium: '300x300>', thumb: '...
...                               ^
/Users/Brendon/Desktop/savings/app/models/user.rb:5: syntax error, unexpected ',', expecting keyword_end
...'600x600>', medium: '300x300>', thumb: '150x150#' }

而且我不知道这是怎么回事我的耙子。没有意外的'{'

class User < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable

  has_attached_file :image, :styles { large: '600x600>', medium: '300x300>', thumb: '150x150#' }
  validates_attachment_content_type :image, content_type: /\Aimage\/.*\Z/

  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable
end

Answer 1

这是编译器指出的语法错误。

这一行：

has_attached_file :image, :styles { large: '600x600>', medium: '300x300>', thumb: '150x150#' }

应改为：

has_attached_file :image, styles: { large: '600x600>', medium: '300x300>', thumb: '150x150#' }

Answer 2

问题不在于迁移，而是 Paperclip 的语法问题：

 has_attached_file :image, styles: {

rake db:migrate 无法使用回形针

rake db:migrate not working with paperclip

ruby

ruby-on-rails

erb