通过CRUD界面管理用户并设计错误

我已经在我的代码下面设置了一个设计的Crud接口，我遇到的问题是，当我尝试创建用户时，得到以下错误 . 我也无法编辑 . 请帮忙 .

"2 errors prohibited this user from being saved: Email can't be blank Password can't be blank"当然我一直在输入所有包含电子邮件和密码的信息 . 我按照设计的文档阅读并阅读了本网站的一些设计主题没有报告此类问题 . Controller: class UsersController <ApplicationController before_filter：authenticate_user！ before_action：authorized_user #GET / users＃GET /users.json def index @users = User.all

# respond_to do |format|
  #   format.html index.html.erb
  #   format.json { render :json => @users }
  end


# GET /users/1
# GET /users/1.json
def show
  @user = User.find(params[:id])

  # respond_to do |format|
  #   format.html show.html.erb
  #   format.json { render :json => @user }
  end

# GET /users/new
# GET /users/new.json
def new
  @user = User.new

  # respond_to do |format|
  #   format.html new.html.erb
  #   format.json { render :json => @user }
  end

# GET /users/1/edit
def edit
  @user = User.find(params[:id])
end

# POST /users
# POST /users.json
def create
  @user = User.new(params[:user_params])

  respond_to do |format|
    if @user.save
      format.html { redirect_to @user, :notice => 'User was successfully created.' }
      format.json { render :json => @user, :status => :created, :location => @user }
    else
      format.html { render :action => "new" }
      format.json { render :json => @user.errors, :status => :unprocessable_entity }
    end
  end
end

# PUT /users/1
# PUT /users/1.json
def update
  if params[:user][:password].blank?
    params[:user].delete(:password)
    params[:user].delete(:password_confirmation)
  end
  @user = User.find(params[:id])

  respond_to do |format|
    if @user.update_attributes(params[:user_params])
      format.html { redirect_to @user, :notice => 'User was successfully updated.' }
      format.json { head :ok }
    else
      format.html { render :action => "edit" }
      format.json { render :json => @user.errors, :status => :unprocessable_entity }
    end
  end
end

# DELETE /users/1
# DELETE /users/1.json
def destroy
  @user = User.find(params[:id])
  @user.destroy

  respond_to do |format|
    format.html { redirect_to users_url }
    format.json { head :ok }
  end
end


private


def user_params
  params.require(:user).permit(:username, :name, :lastname, :email, :password, :password_confirmation, :role_id)
end

def authorized_user
  if current_user.role.name == "admin"
  else
  redirect_to :root, notice: "Not authorized" if @current_user.role.name == 'user' or nil?
  end
end

结束

Here is my form:

<%= form_for(@user) do |f| %>
<% if @user.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@user.errors.count, "error") %> prohibited this user           from being saved:</h2>

      <ul>
        <% @user.errors.full_messages.each do |msg| %>
            <li><%= msg %></li>
        <% end %>
      </ul>
    </div>
<% end %>

<div class="field">
  <%= f.label :username %>

  <%= f.text_field :username, autofocus: true %>
</div>

<div class="field">
  <%= f.label :name %>

  <%= f.text_field :name, autofocus: true %>
</div>

<div class="field">
  <%= f.label :lastname %>

  <%= f.text_field :lastname, autofocus: true %>
</div>

<div class="field">
  <%= f.label :email %>

  <%= f.email_field :email, autofocus: true %>
</div>

<div class="field">
  <%= f.label :password %>
  <% if @minimum_password_length %>
      <em>(<%= @minimum_password_length %> characters minimum)</em>
  <% end %>

  <%= f.password_field :password, autocomplete: "off" %>
</div>

<div class="field">
  <%= f.label :password_confirmation %>

  <%= f.password_field :password_confirmation, autocomplete: "off" %>
</div>
<div class="field">
  <%= f.label :role_id %>

  <%= f.collection_select :role_id, Role.all, :id, :name_role_select  %>
</div>
<div class="actions">
  <%= f.submit "Sign up", class: 'button' %>
</div>