Question

我有以下错误消息：

Unsupported field datatype: metadata.
Extracted source (around line #23):

21      end
22
23  configure :block, :metadata
24      
25  configure :sticky, :metadata do
26      view_helper :check_box

关于gem rails_admin我正在做presentation。在幻灯片29中我把它放在邮政中，而不是有这个错误。我的档案：

/lib/rails_admin/metadata.rb

require 'rails_admin/config/fields/base'

module RailsAdmin
    class Metadata < RailsAdmin::Config::Fields::base
        RailsAdmin::Config::Fields::Types::register(self)

        def value
            raise 'No metadata!' unless bindings[:object].respond_to?(:metadata)
            bindings[:object].metadata[method_name]
        end

        def allowed_methods
            'metadata'
        end

        def parse_input(params)
            params['metadata'] ||= bindings[:object].metadata
            params['metadata'] [method_name] = params.delete(method_name)
        end
    end
end

/models/blog/post.rb

class Blog::Post < ActiveRecord::Base
    has_many :comments
    belongs_to :user

    accepts_nested_attributes_for :comments

    serialize :metadata, Hash

    rails_admin do 

        configure :user do
            visible do
                bindings[:controller].current_ability.can? :edit, User
            end
        end

        configure :comments do
            visible do
                bindings[:controller].current_ability.can? :edit, Blog::comment
            end
        end

        configure :block, :metadata
        configure :sticky, :metadata do
            view_helper :check_box
        end

        configure :published, :metadata do
            view_helper :check_box
        end

        configure :priority, :metadata do
            view_helper :number_field
            defaul_value 0
        end
    end
end

Answer 1

你必须在rails_admin初始化程序的头部random.choice()。

或者在rails自动加载路径中添加require "#{Rails.root}/lib/rails_admin/metadata"文件夹。

在lib添加： config/application.rb

btw已经实现了rails_admin中的序列化数据类型：https://github.com/sferik/rails_admin/blob/master/lib/rails_admin/config/fields/types/serialized.rb

不支持的字段数据类型：元数据

1 个答案: