Rails:Devise Admin编辑用户时保留密码



我创建了"新建/编辑用户"页面,以便管理员可以添加和更新用户。现在我正在尝试的是:当管理员编辑用户时,管理员可以选择不更新密码,只更新电子邮件。但是,保存更新后的电子邮件后,我将如何保留密码?

编辑页面:

 <div><%= f.label :email, 'Email Address' %>
    <%= f.email_field :email, autofocus: true, :class => "form-control", autocomplete: "off", :placeholder => "Enter email address"  %></div><br />
  <div><%= f.label :password %>
    <%= f.password_field :password, autocomplete: "off", :placeholder => "Enter password"  %></div><br />
  <div><%= f.label :password_confirmation %>
    <%= f.password_field :password_confirmation, autocomplete: "off", :placeholder => "Confirm password"  %></div><br />

型号:

devise :database_authenticatable, :registerable,
     :recoverable, :rememberable, :trackable, :validatable
# Setup accessible (or protected) attributes for your model
attr_accessible :email, :password, :password_confirmation

控制器:

  def edit
  @user = User.find(params[:id])
  end
  def update
  @user = User.find(params[:id])
  if @user.update_attributes(params[:user])
    redirect_to edit_user_path
    flash[:notice] = "User updated."
  else
    render :action => 'edit'
  end
  end

您可以检查密码字段是否为空,如果为空,则使用设备的update_without_password方法,尝试此

def update
  @user = User.find(params[:id])
  if params[:user][:password].blank?
    if @user.update_without_password(params[:user].except(:password, :password_confirmation))
      redirect_to edit_user_path
      flash[:notice] = "User updated."
    else
      render :action => 'edit'
    end
  else
    if @user.update_attributes(params[:user])
      redirect_to edit_user_path
      flash[:notice] = "User updated."
    else
      render :action => 'edit'
    end
  end
end

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