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简而言之,我有一个与Devise的Rails API,我想将它部署到Heroku,以便我可以在React应用程序中使用json文件。当我尝试将其迁移到Heroku时,它给了我错误:部署到Heroku PG :: DuplicateColumn:错误:
“PG :: DuplicateColumn:ERROR:关系”评论“的列”user_id“已存在 :ALTER TABLE”reviews“ADD”user_id“整数“
有人告诉我删除迁移文件,因为不知何故Devise已经使他们和迁移文件将使他们双?无论如何,这并没有帮助。
我不知道,如果你需要它,但是这是我的架构文件看起来像:
ActiveRecord::Schema.define(version: 20160719152952) do
# These are extensions that must be enabled in order to support this database
enable_extension "plpgsql"
create_table "games", force: :cascade do |t|
t.string "title"
t.text "description"
t.integer "review_id"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end
add_index "games", ["review_id"], name: "index_games_on_review_id", using: :btree
create_table "reviews", force: :cascade do |t|
t.integer "rating"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.integer "user_id"
t.integer "game_id"
end
add_index "reviews", ["game_id"], name: "index_reviews_on_game_id", using: :btree
add_index "reviews", ["user_id"], name: "index_reviews_on_user_id", using: :btree
create_table "users", force: :cascade do |t|
t.string "email", default: "", null: false
t.string "encrypted_password", default: "", null: false
t.string "reset_password_token"
t.datetime "reset_password_sent_at"
t.datetime "remember_created_at"
t.integer "sign_in_count", default: 0, null: false
t.datetime "current_sign_in_at"
t.datetime "last_sign_in_at"
t.inet "current_sign_in_ip"
t.inet "last_sign_in_ip"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.string "authentication_token", limit: 30
end
add_index "users", ["email"], name: "index_users_on_email", unique: true, using: :btree
add_index "users", ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true, using: :btree
add_foreign_key "games", "reviews"
add_foreign_key "reviews", "games"
add_foreign_key "reviews", "users"
end
好像你有一个迁移到审查表中添加USER_ID –
是较早它给了我一个错误,它找不到USER_ID,和我做了一个迁移用户添加到审查,因为审查属于给用户。那时它确实解决了这个问题,但这不是正确的方法吗? – Jakeroo