Ember CLI Rails:创建用户模型

Ember CLI Rails: Creating user model

本文关键字：用户 模型 创建 CLI Rails Ember      更新时间：2023-09-26

Ember (0.2.5)， Rails (4.2)， Ember CLI Rails, design, Ember CLI Simple Auth design

在'user/new'控制器上创建用户模型的操作。目前，ruby代码在数据库中创建用户，但是javascript响应仍然失败。我还没能找到很多关于Ember CLI和Rails的用户模型创建的资源。以下是我到目前为止一直在使用的资源(https://adibsaad.com/blog/setting-up-ember-cli-with-a-rails-back-end-and-token-authentication-authorization)和(http://kbarrett.com/blog/2014/03/24/authentication-with-ember-rails.html)。

POST http://localhost:3000/users 422 (Unprocessable Entity)

actions: {
createUser: function() {
  var user = this.store.createRecord('user', {
    name: this.get('name'),
    gradePoints: this.get('gradePoints'),
    gradeUnits: this.get('gradeUnits'),
    email: this.get('email'),
    password: this.get('password')
  });
  var self = this;
  user.save().then(function() {
    self.get('session').authenticate('ember-simple-auth-authenticator:devise', {
      identification: user.get('email'),
      password: user.get('password')
    }).then((function() {
      self.transitionToRoute('dashboard');
    }));
  }, function() {
    alert('Failed to register user.');
  });
 }
}
Ruby代码

class UsersController < ApplicationController
  respond_to :json
  def create
    user = User.new(user_params)
    binding.pry
    if user.save
      render json: user, status: :created
    else
      respond_with user
    end
  end
  private
  def user_params
    params.require(:user).permit(:name, :email, :gradePoints, :gradeUnits, :password, :password_confirmation)
  end
end

如果我还需要提供什么，请告诉我。

  Started POST "/users" for ::1 at 2015-05-25 09:36:54 -0700
  Processing by UsersController#create as JSON
    Parameters: {"user"=>{"email"=>"user@example.com", "name"=>"Arin", "gradePoints"=>217.665, "gradeUnits"=>63, "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]"}}
     (0.2ms)  BEGIN
    User Exists (0.4ms)  SELECT  1 AS one FROM "users" WHERE "users"."email" = 'user@example.com' LIMIT 1
     (0.1ms)  ROLLBACK
  Completed 422 Unprocessable Entity in 118ms (Views: 0.9ms | ActiveRecord: 0.7ms)

在意识到422响应的实际含义以及我需要传递的内容之后，我决定将json错误发送回user_controller。Rb并显示每一个的咆哮。

JS Controller Action:

    actions: {
      createUser: function() {
        var user = this.store.createRecord('user', this.get('model'));
        var self = this;
        user.save().then(function() {
          self.get('session').authenticate('simple-auth-authenticator:devise', {
            identification: user.get('email'),
            password: user.get('password')
          }).then((function() {
            self.transitionToRoute('dashboard');
            $.growl.notice({ message: "You have successfully registered." });
          }));
        }, function(response) {
          user.rollback();
          var errors = response.responseJSON.errors;
          errors.forEach(function(error_message){
            $.growl.error({ message: error_message });
          });
        });
      }
    }

user_controller.rb 

  class UsersController < ApplicationController
    respond_to :json
    def create
      @user = User.new(user_params)
      if @user.save
        render json: @user, status: :created
      else
        render json: { errors: @user.errors.full_messages }, status: :unprocessable_entity
      end
    end
    private
    def user_params
      params.require(:user).permit(:name, :email, :gradePoints, :gradeUnits, :password, :password_confirmation)
    end
  end

使用rails提供的.full_messages后返回的json响应格式如下:

{ errors: ["Password can't be blank", "Name can't be blank"] }

希望这有助于别人，并乐意提供更多，如果需要!

我的情况，以防它对任何人都有帮助:我正在将我的纯rails应用程序转换为带有ember前端的rails。在我的例子中，我保存的是@domain(不像OP那样是@user，但原理相同)。

我的domains_controller.rb有这个if/else语句(这在rubyland中很有用):

def create
  @user = current_user
  @domain = current_user.domains.build(app_params)
  @new_domain = Domain.new
  if @domain.save
    flash.now[:notice] = "Domain registered."
  else
    flash[:error] = "There was an error registering the domain. Try again."
  end
  respond_with current_user.domains.create(app_params)
end

但是这些flash通知在emberland中没有用(它以自己的方式处理错误消息)。我能够为新域访问createRecord s，但是得到422个不可处理的实体，并且必须刷新页面以反映更改(新域)。一旦我完全删除了if/else语句，我的ember应用程序工作得很漂亮。

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