ruby - FactoryGirl ActiveRecord::RecordInvalid:验证失败:名称已被占用

Question

我有三个模型，Course、Category 和 partner，一个类(class)可以有多个类别，一个类(class)属于一个合作伙伴。当我创建我的类(class)工厂时，出现以下错误:

Partner has a valid factory for course
     Failure/Error: expect(FactoryGirl.create(:course)).to be_valid
     ActiveRecord::RecordInvalid:
       Validation failed: Name has already been taken 

这是我的模型:

class Category < ActiveRecord::Base
  has_many :categorisations 
  has_many :courses, :through=> :categorisations
  belongs_to :user
#validation 
  validates :name, presence: true , uniqueness: { scope: :name }
end


class Partner < ActiveRecord::Base
  has_many :courses
  belongs_to :user

  validates :name, presence: true, uniqueness: { scope: :name }
  validates :short_name, presence: true
  VALID_HEX_COLOR= /\A#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})\z/
  validates :primary_color, presence: true, format: { with: VALID_HEX_COLOR}
  validates :secondary_color, presence: true, format: { with: VALID_HEX_COLOR}
end

class Course < ActiveRecord::Base
  extend FriendlyId
  friendly_id :title, use: [:slugged, :history]

  has_many :categorisations, :dependent => :destroy
  has_many :categories, :through=> :categorisations 
  belongs_to :partner
  belongs_to :user

  # validates_uniqueness_of :title
  validates :title, presence: true
  # validates :start_date, presence: true
  # validates :duration, presence:true
  # validates :state, presence:true
  validates :categories, length: { minimum: 1 , message:"please select"}
  validates :partner_id, presence: true, allow_nil: false
end

这是我的工厂:

 factory :partner do |f|
    f.name Faker::Name.name
    f.short_name "UCT"
    f.primary_color "#009bda"
    f.secondary_color "#002060"
  end

factory :course do |f|
    f.title "Introduction to Accounting short course"
    f.start_date "2014-02-27 00:00:00"
    f.duration "10 WEEKS ONLINE"
    partner
    categorisation
  end  
  factory :categorisation do |categorisation|
    categorisation.category {|category| category.association(:category)}
    categorisation.course {|course| course.association(:course)}
  end

我不确定我做错了什么，如果有人可以告诉我问题可能是什么或者我可以解决这个问题的过程可能会有很大的帮助

Answer 1

试试这个:

 factory :partner do |f| 
    f.sequence(:name) { |n| "#{Faker::Name.name} #{n}" }
    f.short_name "UCT"
    f.primary_color "#009bda"
    f.secondary_color "#002060"
  end

  factory :category do |f| 
    f.sequence(:name) { |n| "Category #{n}" }
  end