用户模型不会更新 [英] User model won't update

问题描述

我尝试更新现有用户:

控制器摘要

I try to update an existing user:

Controller-Snippet

  def account_settings
    @user = current_user
  end

  def set_account_info
    old_user = current_user

    # verify the current password by creating a new user record.
    @user = User.authenticate_by_username(old_user.username, params[:user][:password])

    # verify
    if @user.nil?
      @user = current_user
      @user.errors[:password] = "Das eingegebene Passwort ist falsch."
      render :action => "account_settings"
    else
      # update the user with any new username and email
      @user.update(params[:user])
      # Set the old email and username, which is validated only if it has changed.
      @user.previous_email = old_user.email
      @user.previous_username = old_user.username

      if @user.valid?
        # If there is a new_password value, then we need to update the password.
        @user.password = @user.new_password unless @user.new_password.nil? || @user.new_password.empty?
        @user.save
        flash[:notice] = 'Benutzerkonto-Einstellungen wurden übernommen.'
        redirect_to :root
      else
        flash[:error] = @user.username
        render :action => "account_settings"
      end
    end
  end

我已经尝试过post-，put-和patch-method.

路由摘要

I allready tried post-, put- and patch-method.

Route-Snippet

Calendar::Application.routes.draw do
  root "welcome#index"

  get "user/account_settings" => "user#account_settings"

  patch "user/account_settings" => "user#set_account_info"
end

用户模型

class User < ActiveRecord::Base
  attr_accessible :email, :username, :previous_email, :previous_username, :password, :password_confirmation, :new_password, :new_password_confirmation
  attr_accessor :password, :new_password, :previous_email, :previous_username
  before_save :encrypt_password

  validates_confirmation_of :password
  validates_confirmation_of :new_password, :if => Proc.new {|user| !user.new_password.nil? && !user.new_password.empty? }
  validates_presence_of :password, :on => :create
  validates_presence_of :email, :if => Proc.new {|user| user.previous_email.nil? || user.email != user.previous_email}
  validates_presence_of :username, :if => Proc.new {|user| user.previous_username.nil? || user.username != user.previous_username}
  validates_uniqueness_of :email, :if => Proc.new {|user| user.previous_email.nil? || user.email != user.previous_email}
  validates_uniqueness_of :username, :if => Proc.new {|user| user.previous_username.nil? || user.username != user.previous_username}

  def initialize(attributes = {})
    super # must allow the active record to initialize!
    attributes.each do |name, value|
      send("#{name}=", value)
    end
  end

  def self.authenticate_by_email(email, password)
    user = find_by_email(email)
    if user && user.password_hash == BCrypt::Engine.hash_secret(password, user.password_salt)
      user
    else
      nil
    end
  end

  def self.authenticate_by_username(username, password)
    user = find_by_username(username)
    if user && user.password_hash == BCrypt::Engine.hash_secret(password, user.password_salt)
      user
    else
      nil
    end
  end

  def encrypt_password
    if password.present?
      self.password_salt = BCrypt::Engine.generate_salt
      self.password_hash = BCrypt::Engine.hash_secret(password, password_salt)
    end
  end
end

Flash通知flash[:error] = @user.username放置了新的用户名，因此我不理解为什么用户未在数据库中更新.
首先，我认为我的set_account_info方法不正确，但是我不知道如何检查输入.
其次，我将form_for方法从default(post)更改为put，然后更改为patch ，但这也无济于事.

The Flash-Notice flash[:error] = @user.username puts the new username, so I dont understand why the user isn't updated in the database.
First I thought my set_account_info-method isn't right, but I have no better idea how to check the inputs.
Secondly I changed the form_for method from default(post) to put and then to patch, but that also didn't help.

推荐答案

不再使用rails 4 attr_accessible，现在我们有了强大的参数.这意味着您现在需要告诉应用程序可以更新哪些参数(白名单).

With rails 4 attr_accessible is no longer used, instead we now have strong params. what this means is that you now need to tell the application what parameters it can update (A whitelist).

这一切现在都已在控制器中完成，我将为您提供一个示例，说明它在您的情况下是否对您有帮助

This is all done in the controller now, I will give you an example of what I do and see if it helps you in your scenario

class ExampleController < ApplicationController

 def create
   @object= Object.new(my_params)
    if @object.save
     redirect_to root_path, notice: 'Object Successfully Created'
    else
     render action: 'new'
    end
end

def update
  @object= Object.find(params[:id])
    if @object.update_attributes(my_params)
     redirect_to root_path, notice: 'Object updated'
  else
    render action: 'edit'
  end
end

private

def my_params
params.require(:object).permit(:id, :title, :overview, :category_id, 
nested_attributes: [:id, :gallery_id, :gallery_category_id, :photo, :_destroy])

end

这篇关于用户模型不会更新的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！