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OK、ここでは物事をシンプルに保ち、Rails コンソールでテストを行うようにしています。ただし、タグを保存して再度読み取る方法がわかりません。以下の貼り付けからわかるように、@consumer オブジェクトを (タグ付きで) 保存してからタグを読み取ることができません..

http://pastebin.com/txpuf09g

1.9.3p286 :001 > @consumer = Consumer.first
Creating scope :page. Overwriting existing method Consumer.page.
  Consumer Load (1.3ms)  SELECT "consumers".* FROM "consumers" LIMIT 1
 => #<Consumer id: 29, hl: nil, created_at: "2012-10-27 23:27:15", updated_at: "2012-10-27 23:27:15", user_id: 33, display_name: nil, tagline: nil, desc: nil>
1.9.3p286 :002 > @consumer.tags
  ActsAsTaggableOn::Tag Load (2.3ms)  SELECT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."taggable_id" = 29 AND "taggings"."taggable_type" = 'Consumer' AND (taggings.context = 'tags')
 => []

1.9.3p286 :003 > @consumer.tag_list
  ActsAsTaggableOn::Tag Load (1.4ms)  SELECT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."taggable_id" = 29 AND "taggings"."taggable_type" = 'Consumer' AND (taggings.context = 'tags' AND taggings.tagger_id IS NULL)
 => []
1.9.3p286 :004 > @consumer.tag_list = "hi, ho"
 => "hi, ho"
1.9.3p286 :005 > @consumer
 => #<Consumer id: 29, hl: nil, created_at: "2012-10-27 23:27:15", updated_at: "2012-10-27 23:27:15", user_id: 33, display_name: nil, tagline: nil, desc: nil>
1.9.3p286 :006 > @consumer.save
   (0.4ms)  BEGIN
   (0.7ms)  UPDATE "consumers" SET "updated_at" = '2013-02-15 00:25:05.187733' WHERE "consumers"."id" = 29
  ActsAsTaggableOn::Tag Load (0.8ms)  SELECT "tags".* FROM "tags" WHERE (lower(name) = 'hi' OR lower(name) = 'ho')
  ActsAsTaggableOn::Tag Exists (0.6ms)  SELECT 1 AS one FROM "tags" WHERE "tags"."name" = 'hi' LIMIT 1
  SQL (1.3ms)  INSERT INTO "tags" ("name") VALUES ($1) RETURNING "id"  [["name", "hi"]]
  ActsAsTaggableOn::Tag Exists (0.5ms)  SELECT 1 AS one FROM "tags" WHERE "tags"."name" = 'ho' LIMIT 1
  SQL (0.4ms)  INSERT INTO "tags" ("name") VALUES ($1) RETURNING "id"  [["name", "ho"]]
  ActsAsTaggableOn::Tag Load (0.7ms)  SELECT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."taggable_id" = 29 AND "taggings"."taggable_type" = 'Consumer' AND (taggings.context = 'tags' AND taggings.tagger_id IS NULL)
  ActsAsTaggableOn::Tagging Exists (0.7ms)  SELECT 1 AS one FROM "taggings" WHERE ("taggings"."tag_id" = 5 AND "taggings"."taggable_type" = 'Consumer' AND "taggings"."taggable_id" = 29 AND "taggings"."context" = 'tags' AND "taggings"."tagger_id" IS NULL AND "taggings"."tagger_type" IS NULL) LIMIT 1
  SQL (1.5ms)  INSERT INTO "taggings" ("context", "created_at", "tag_id", "taggable_id", "taggable_type", "tagger_id", "tagger_type") VALUES ($1, $2, $3, $4, $5, $6, $7) RETURNING "id"  [["context", "tags"], ["created_at", Fri, 15 Feb 2013 00:25:05 UTC +00:00], ["tag_id", 5], ["taggable_id", 29], ["taggable_type", "Consumer"], ["tagger_id", nil], ["tagger_type", nil]]
  ActsAsTaggableOn::Tagging Exists (0.7ms)  SELECT 1 AS one FROM "taggings" WHERE ("taggings"."tag_id" = 6 AND "taggings"."taggable_type" = 'Consumer' AND "taggings"."taggable_id" = 29 AND "taggings"."context" = 'tags' AND "taggings"."tagger_id" IS NULL AND "taggings"."tagger_type" IS NULL) LIMIT 1
  SQL (0.5ms)  INSERT INTO "taggings" ("context", "created_at", "tag_id", "taggable_id", "taggable_type", "tagger_id", "tagger_type") VALUES ($1, $2, $3, $4, $5, $6, $7) RETURNING "id"  [["context", "tags"], ["created_at", Fri, 15 Feb 2013 00:25:05 UTC +00:00], ["tag_id", 6], ["taggable_id", 29], ["taggable_type", "Consumer"], ["tagger_id", nil], ["tagger_type", nil]]
   (11.9ms)  COMMIT
 => true
1.9.3p286 :007 > Consumer.first.tags
  Consumer Load (0.9ms)  SELECT "consumers".* FROM "consumers" LIMIT 1
  ActsAsTaggableOn::Tag Load (1.0ms)  SELECT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."taggable_id" = 30 AND "taggings"."taggable_type" = 'Consumer' AND (taggings.context = 'tags')
 => []

また、DB のテーブルとしてタグまたはタグ付けが見つかりません。これを理解するのを手伝ってくれてありがとう。

編集：

問題があると思います..タグ付けテーブルで、id、tag_id、taggable_id、taggable_type、tagger_id、tagger_type、コンテキスト列が表示されています..行は、tagger_id と tagger_type を除いて完全に見えます。これは、タグが消費者の ID に関連付けられていないことと関係があると思いますか? 問題は、Consumer.id が実際にタグ付けテーブルのどこに表示されるかということだと思います..現時点では、Consumer.first.id はタグ付けのどの列にもありません! Consumer.first.id == 30

ここに画像の説明を入力

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1 に答える 1

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経由でtags_listの配列に追加してみてください

@consumer.tag_list << "foo"
@consumber.save

次に保存します

また、acts_as_taggable_on は、あなたのケースでタグと呼ばれるテーブルを作成します。表示されない場合は、移行を実行することをお勧めします。

于 2013-02-15T00:45:34.677 に答える