Question

相同的代码在本地工作但在Heroku中不起作用

def update
    current_user.update!(user_params)
    response = { message: Message.account_updated}
    json_response(response)
end
private
def user_params
    params.permit(:first_name, :last_name, :email, :password)
end

的routes.rb

namespace :api do
    namespace :v1 do
        put 'user/update', to: 'users#update'
    end
end

user_serializer.rb

class UserSerializer < ActiveModel::Serializer
    attributes :id, :username, :first_name, :last_name, :email, :created_at, :updated_at
end

这是我和它在本地通过邮递员工作，即用于更新用户信息，但是当我推送到Heroku并尝试通过邮递员更新然后不工作时，日志显示如下

2018-04-30T10:15:47.665731+00:00 heroku[router]: at=info method=PUT path="/api/v1/user/update?first_name=John&last_name=Doe" host=my-host.herokuapp.com request_id=79a84b63-be87-46f8-8fad-2d151a63722f fwd="27.147.231.22" dyno=web.1 connect=0ms service=18ms status=500 bytes=283 protocol=https
2018-04-30T10:15:47.648979+00:00 app[web.1]: [79a84b63-be87-46f8-8fad-2d151a63722f] Started PUT "/api/v1/user/update?first_name=John&last_name=Doe" 
for 27.147.231.22 at 2018-04-30 10:15:47 +0000
2018-04-30T10:15:47.650866+00:00 app[web.1]: [79a84b63-be87-46f8-8fad-2d151a63722f] Processing by Api::V1::UsersController#update as */*
2018-04-30T10:15:47.650987+00:00 app[web.1]: [79a84b63-be87-46f8-8fad-2d151a63722f]   Parameters: {"first_name"=>"John", "last_name"=>"Doe"}
2018-04-30T10:15:47.654619+00:00 app[web.1]: [79a84b63-be87-46f8-8fad-2d151a63722f]   User Load (1.3ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2  [["id", 1], ["LIMIT", 1]]
2018-04-30T10:15:47.656446+00:00 app[web.1]: [79a84b63-be87-46f8-8fad-2d151a63722f]   CACHE User Load (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2  [["id", 1], ["LIMIT", 1]]
2018-04-30T10:15:47.658345+00:00 app[web.1]: [79a84b63-be87-46f8-8fad-2d151a63722f]    (1.1ms)  BEGIN
2018-04-30T10:15:47.661446+00:00 app[web.1]: [79a84b63-be87-46f8-8fad-2d151a63722f]   User Exists (1.2ms)  SELECT  1 AS one FROM "users" WHERE LOWER("users"."email") = LOWER($1) AND "users"."id" != $2 LIMIT $3  [["email", "j@gmail.com"], ["id", 1], ["LIMIT", 1]]
2018-04-30T10:15:47.663630+00:00 app[web.1]: [79a84b63-be87-46f8-8fad-2d151a63722f]    (1.0ms)  COMMIT
2018-04-30T10:15:47.664737+00:00 app[web.1]: [79a84b63-be87-46f8-8fad-2d151a63722f] [active_model_serializers] Rendered ActiveModel::Serializer::Null with Hash (0.51ms)
2018-04-30T10:15:47.665015+00:00 app[web.1]: [79a84b63-be87-46f8-8fad-2d151a63722f] Completed 500 Internal Server Error in 14ms (Views: 1.1ms | ActiveRecord: 4.5ms)

我认为这就是问题

使用哈希（0.51ms）呈现ActiveModel :: Serializer :: Null

但我不明白发生了什么。

更新

module Response
    def json_response(object, status = :ok)
        render json: object, status: status
    end
end

Answer 1

首先

使用哈希（0.51ms）呈现ActiveModel :: Serializer :: Null

这不是更新用户信息的问题，它会显示在日志中，因为!序列化了update!(user_params)值的列。

我认为问题出在其他地方，就像您需要重构原因一样，例如，您可以尝试删除current_user.update(user_params) # place this method inside NullAttributesRemover or directly inside serializer class def serializable_hash(adapter_options = nil, options = {}, adapter_instance = self.class.serialization_adapter_instance) hash = super hash.each { |key, value| hash.delete(key) if value.nil? } hash end尝试此$concatHTML = ''; $prodList = [...]; // assume we have products list here for ($i = 0, $max = count($prodList); $i < $max; $i++) { $concatHTML += '<div>'. $prodList[$i] .'</div>'; } $content = new SendGrid\Content("text/html", " //some html content here $concatHTML ");或其他任何内容。

echo 'hi ' . $name

它将序列化只有实际值的列。

我认为这会有所帮助。

Rails：用户信息未更新（使用哈希呈现ActiveModel Serializer Null）

1 个答案: