Ruby on rails 如何在标记上为我的行为设置种子作为标记?

Ruby on rails 如何在标记上为我的行为设置种子作为标记?,ruby-on-rails,acts-as-taggable-on,Ruby On Rails,Acts As Taggable On,我正在尝试在我的数据库中创建大量的标记,有人知道如何使用gem实现这一点吗 产品表: create_table :products do |t| t.string :name t.date :date t.decimal :price, :default => 0, :precision => 10, :scale => 2 t.integer :user_id end 而:tag_list字段是一个虚拟列,它是通过迁移actsastaggaleon

我正在尝试在我的数据库中创建大量的标记,有人知道如何使用gem实现这一点吗

产品表:

create_table :products do |t|
   t.string :name
   t.date :date
   t.decimal  :price, :default => 0, :precision => 10, :scale => 2
   t.integer :user_id
end
:tag_list
字段是一个虚拟列
,它是通过迁移
actsastaggaleon
创建的:

class ActsAsTaggableOnMigration < ActiveRecord::Migration
  def self.up
    create_table :tags do |t|
      t.string :name
    end

    create_table :taggings do |t|
      t.references :tag

      # You should make sure that the column created is
      # long enough to store the required class names.
      t.references :taggable, :polymorphic => true
      t.references :tagger, :polymorphic => true

      t.string :context

      t.datetime :created_at
    end

    add_index :taggings, :tag_id
    add_index :taggings, [:taggable_id, :taggable_type, :context]
  end

  def self.down
    drop_table :taggings
    drop_table :tags
  end
end
我试着做这样的事

Product.create([
  {:tag_list => 'Foods'},
  {:tag_list => 'Electronics'},
  {:tag_list => 'Pizza'},
  {:tag_list => 'Groceries'},
  {:tag_list => 'Walmart'},
  {:tag_list => 'Apples'},
  {:tag_list => 'Oranges'} ])

但我缺乏RoR技能,这告诉我这是错误的方法,我需要帮助,有什么建议吗

您可以在种子中尝试此功能。rb:

list = ['tag 1', 'tag 2', ...]

list.each do |tag|
  ActsAsTaggableOn::Tag.new(:name => tag).save
end
显然,用列表数组的值替换所需的标记

注意:这将只填充标记表。我希望这就是你想要的


希望这有帮助

您可以使用以下内容在seeds文件中创建一些测试产品:

unless Rails.env.production?
  1..20.times.each do |n|
    Product.create(
      name: "Some product #{n}",
      date: Date.today - n.days,
      price: 1_000_000 + n,
      user: User.first
    )
  end
end
因此,您可以通过这样做为标记种子

# ...
  product = Product.create(
    # ...
  )
  product.tag_list.add "tag1", "tag2"
  product.save
# ...

# ...
  product = Product.create(
    # ...
  )
  product.tag_list.add "tag1", "tag2"
  product.save
# ...
# ...
  Product.create(
    # ...
  ).tap do |product|
    product.tag_list.add "tag1", "tag2"
    product.save
  end
# ...