actions_As_taggabe_on更改標簽大小寫-可能存在緩存問題，但不確定

Question

我正在使用actastaggableon寶石。 由於某些原因，系統會將標簽“ Python”保存為“ python（小寫）”。 由於我正在驗證用戶只能輸入某些標簽，因此將標簽另存為“ python”的系統會引起一些問題。 以下是我的服務器日志。 第一行是所有驗證運行（通過）之后的tag_list的puts語句。 然后，服務器執行一些奇怪的操作，並將“ Python”轉換為“ python”。 這可能與緩存有關，因為我以前有一個名為“ python”的標簽，但我不再這樣做。 如何在不認真更改緩存設置的情況下解決此問題？

    ["IOS | IPhone | IPad", "App and Web development", "PHP", "Rails", "Python"]
      ActsAsTaggableOn::Tag Load (0.8ms)  SELECT "tags".* FROM "tags" WHERE (lower(name) = 'ios | iphone | ipad' OR lower(name) = 'app and web development' OR lower(name) = 'php' OR lower(name) = 'rails' OR lower(name) = 'python')
      ActsAsTaggableOn::Tag Load (0.8ms)  SELECT "tags".* FROM "tags" WHERE (lower(name) = 'ios | iphone | ipad' OR lower(name) = 'app and web development' OR lower(name) = 'php' OR lower(name) = 'rails' OR lower(name) = 'python')
      CACHE (0.0ms)  SELECT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."taggable_id" = $1 AND "taggings"."taggable_type" = $2 AND (taggings.context = 'tags' AND taggings.tagger_id IS NULL)  [["taggable_id", 16], ["taggable_type", "Profile"]]
      CACHE (0.0ms)  SELECT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."taggable_id" = $1 AND "taggings"."taggable_type" = $2 AND (taggings.context = 'tags' AND taggings.tagger_id IS NULL)  [["taggable_id", 16], ["taggable_type", "Profile"]]
      ActsAsTaggableOn::Tagging Exists (0.6ms)  SELECT 1 AS one FROM "taggings" WHERE ("taggings"."tag_id" = 1 AND "taggings"."taggable_type" = 'Profile' AND "taggings"."taggable_id" = 16 AND "taggings"."context" = 'tags' AND "taggings"."tagger_id" IS NULL AND "taggings"."tagger_type" IS NULL) LIMIT 1
      ActsAsTaggableOn::Tagging Exists (0.6ms)  SELECT 1 AS one FROM "taggings" WHERE ("taggings"."tag_id" = 1 AND "taggings"."taggable_type" = 'Profile' AND "taggings"."taggable_id" = 16 AND "taggings"."context" = 'tags' AND "taggings"."tagger_id" IS NULL AND "taggings"."tagger_type" IS NULL) LIMIT 1
      SQL (3.8ms)  INSERT INTO "taggings" ("context", "created_at", "tag_id", "taggable_id", "taggable_type") VALUES ($1, $2, $3, $4, $5) RETURNING "id"  [["context", "tags"], ["created_at", Tue, 25 Mar 2014 16:05:41 EDT -04:00], ["tag_id", 1], ["taggable_id", 16], ["taggable_type", "Profile"]]
      SQL (3.8ms)  INSERT INTO "taggings" ("context", "created_at", "tag_id", "taggable_id", "taggable_type") VALUES ($1, $2, $3, $4, $5) RETURNING "id"  [["context", "tags"], ["created_at", Tue, 25 Mar 2014 16:05:41 EDT -04:00], ["tag_id", 1], ["taggable_id", 16], ["taggable_type", "Profile"]]

Answer 1

您是否在某處設置了此設置：

ActsAsTaggableOn.force_lowercase = true

如果是這樣，則強制小寫

如果沒有該設置，則另一個可能的問題是，如果您正在使用mysql作為數據庫，可以在以下位置找到： https : //github.com/mbleigh/acts-as-taggable-on/issues/259

class EditTagTableToBeCaseSensitive < ActiveRecord::Migration
  def up
    @sql = "ALTER TABLE `tags` CHANGE `name` `name` VARCHAR(255) BINARY DEFAULT NULL;"
    execute @sql
  end

  def down
    @sql = "ALTER TABLE `tags` CHANGE `name` `name` VARCHAR(255) DEFAULT NULL;"
    execute @sql
  end
end