我注释掉了 has_many ,但是在重启 rails 服务器后,同一个导出页面有很多
config.model 'User' do
# # You can copy this to a 'rails_admin do ... end' block inside your user.rb model definition
# # Found associations:
# configure :canvases, :has_many_association
# configure :level, :has_many_association
# configure :tags, :has_many_association
# # Found columns:
configure :id, :integer
configure :name, :string
configure :email, :string
configure :raw_info, :serialized
configure :created_at, :datetime
configure :updated_at, :datetime