如何在测试夹具中使用acts as-taggable-on？

Question

看起来，acts as-taggable-on在它建立的数据表中使用了多态关系。如何让它与minitest中的fixture一起工作？

我有一个实现acts-as-taggable的Lead模型。这看起来像是在模型中添加了以下内容：

has_many :taggings, :as => :taggable, :dependent => :destroy, :class_name => "ActsAsTaggableOn::Tagging"
has_many :base_tags, :through => :taggings, :source => :tag, :class_name => "ActsAsTaggableOn::Tag"

我的销售线索表：

  create_table "leads", force: true do |t|
    t.string   "name"
    t.string   "email"
    t.string   "phone"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.integer  "user_id"
  end

由acts as-taggable-on创建的表：

  create_table "taggings", force: true do |t|
    t.integer  "tag_id"
    t.integer  "taggable_id"
    t.string   "taggable_type"
    t.integer  "tagger_id"
    t.string   "tagger_type"
    t.string   "context",       limit: 128
    t.datetime "created_at"
  end

  add_index "taggings", ["tag_id", "taggable_id", "taggable_type", "context", "tagger_id", "tagger_type"], name: "taggings_idx", unique: true, using: :btree

  create_table "tags", force: true do |t|
    t.string "name"
  end

  add_index "tags", ["name"], name: "index_tags_on_name", unique: true, using: :btree

gem中有一个标签类，它包括：

belongs_to :tag, :class_name => 'ActsAsTaggableOn::Tag'
belongs_to :taggable, :polymorphic => true
belongs_to :tagger,   :polymorphic => true

下面是我的fixtures在多态关系的rails api docs中的样子：

# leads.yml
onetag1:
  name: "OneTag1 Lead"
  email: "lead@onetag1email.com"
  phone: "14120006002"
  base_tags: one
onetag2:
  name: "OneTag2 Lead"
  email: "lead@onetag2email.com"
  phone: "14120006003"

# taggings.yml
one:
  tag: one
  taggable: onetag1 (Lead)
two:
  tag: two
  taggable: onetag2 (Lead)

# tags.yml
one:
  name: "Tag one"
two:
  name: "Tag two"

但我得到了：

ActiveRecord::StatementInvalid: PG::UndefinedColumn: ERROR:  column "tag" of relation "taggings" does not exist
LINE 1: INSERT INTO "taggings" ("tag", "taggable") VALUES ('one', 'o...
                                ^
: INSERT INTO "taggings" ("tag", "taggable") VALUES ('one', 'onetag1 (Lead)')

我也试过了：

# taggings.yml
one:
  taggable: onetag1 (Lead)
two:
  taggable: onetag2 (Lead)

而不引用tag。但我得到的是：

ActiveRecord::StatementInvalid: PG::UndefinedColumn: ERROR:  column "taggable" of relation "taggings" does not exist
LINE 1: INSERT INTO "taggings" ("taggable") VALUES ('onetag1 (Lead)'...
                                ^
: INSERT INTO "taggings" ("taggable") VALUES ('onetag1 (Lead)')

我遗漏了什么？如何将标签与装置中的引线相关联？

Answer 1

我知道这很古老，但是对于通过搜索发现这一点的任何人来说，这里有解决方案(至少在Rails 5中是这样)。

关键在于Rails围绕文件夹和类名的魔力。因为在ActsAsTaggableOn名称空间下创建模块，所以需要在名为acts_as_taggable_on的子文件夹中创建fixture

夹具数据

在fixtures文件夹下，与添加标签相关的fixture应位于如下所示的路径中：

# acts_as_taggable_on/taggings.yml
one:
  tag: one
  taggable: onetag1 (Lead)
two:
  tag: two
  taggable: onetag2 (Lead)

# acts_as_taggable_on/tags.yml
one:
  name: "Tag one"
two:
  name: "Tag two"

测试用例中的Fixtures

要在测试用例中检索标记或标记，请使用以下方法：

setup do
  @tag = acts_as_taggable_on_tags(:one)
  @tagging = acts_as_taggabe_on_taggings(:one)
end

Answer 2

Ryan的回答大体上是正确的，但您可能还需要在您的标记装置上指定上下文，如下所示。

# acts_as_taggable_on/taggings.yml
one:
  tag: one
  taggable: onetag1 (Lead)
  context: tags
two:
  tag: two
  taggable: onetag2 (Lead)
  context: tags

标记fixture也有一个计数器缓存

# acts_as_taggable_on/tags.yml
one: 
  name: tag one
  taggings_count: 1