Rails 为 #<Merit::BadgeRules:0x0000000415b5e0> 分配未定义的局部变量或方法“user”

Question

我正在尝试使用 merti gem 与 rails 建立一个声誉系统，我试图在用户创建超过 8 条评论时授予徽章，但是我每次都会收到错误未定义方法用户我创建评论。我正在使用 devise ，但我可以手动创建徽章。有人可以帮忙吗？谢谢！！

徽章规则

# Be sure to restart your server when you modify this file.
#
# +grant_on+ accepts:
# * Nothing (always grants)
# * A block which evaluates to boolean (recieves the object as parameter)
# * A block with a hash composed of methods to run on the target object with
#   expected values (+votes: 5+ for instance).
#
# +grant_on+ can have a +:to+ method name, which called over the target object


module Merit
  class BadgeRules
    include Merit::BadgeRulesMethods

    def initialize

      grant_on 'comments#create',  badge: 'Jr.Critic', temporary: true, to: :user do |comment|
  comment.user.comments.count >= 1 &&  comment.user.comments.count < 2
end
grant_on 'comments#create',  badge: 'Sr.Critic', to: :user do |comment|
  comment.user.comments.count >= 3
end
grant_on 'notes#create',  badge: 'First story ', to: :user do |note|
note.user.notes.count = 1
end

grant_on 'comments#create',  badge: 'Story Teller', to: :user do |comment|
comment.user.comments.count >= 8
end

merit.rb

# Use this hook to configure merit parameters
Merit.setup do |config|


  Merit::Badge.create!(
  id: 1,
  name: "Jr.Critic",
  description: "Over 5 comments"
)
Merit::Badge.create!(
  id: 2,
  name: "Sr.Critic",
  description: "Over 50 comments"
)

Merit::Badge.create!(
id: 3,
name: "Story Teller",
description: "Over 5 notes!"
)
Merit::Badge.create!(
id: 4,
name: "First story ",
description: "created first story"
)


Merit::Badge.create!(
id: 5,
name: "commenter ",
description: "created more than 5 comments!"
)

和用户模型

class User < ApplicationRecord
  has_merit

 end

Answer 1

您似乎没有为用户和评论设置关联

User.rb应该还有，随着has_merit，has_many :comment

class User < ApplicationRecord
  has_merit
  has_many :comments
end

Comment.rb 应该有 belongs_to :user

class Comment < ApplicationRecord
  belongs_to :user
end

此外，如果您还没有设置笔记的关联，请不要忘记。

Answer 2

您需要运行迁移以获得价值评论。然后重启你的服务器并更改此行

grant_on 'notes#create',  badge: 'First story ', to: :user do |note|
note.user.notes.count = 1
end

至

grant_on 'notes#create',  badge: 'First story ', to: :user do |note|
    note.user.notes.count = >1
    end

希望对你有用

Rails 为 #<Merit::BadgeRules:0x0000000415b5e0> 分配未定义的局部变量或方法“user”

Rails Merit undefined local variable or method `user' for #<Merit::BadgeRules:0x0000000415b5e0>

ruby

ruby-on-rails

devise

merit-gem