需要旧密码才能创建新密码 [英] Require old password to make new password

问题描述

现在，每当我在用户/编辑中进行任何更改时，表单都要求用户设置新密码.我希望它仅在输入新密码的情况下才要求输入当前密码(如何要求输入当前密码?).我要如何实现这一点，非常感谢.

Right now every time I change anything in user/edit the form requires the user to set a new password. I would like for it to require the current password (how can I ask for current password?) only incase a new password is entered. How can I achieve this, thanks a lot for this.

<%= form_for(@user, :html => {:multipart => true}) do |f| %>
  <%= render 'shared/error_messages', object: f.object %>
  <%= f.text_field :name, placeholder: :name %>
  <%= f.text_field :email, placeholder: :email %>
  <%= f.password_field :password, placeholder: "Enter new password" %>
  <%= f.password_field :password_confirmation, placeholder: "Confirm new password" %>
  <%= f.submit "Save changes", class: "btn btn-large btn-primary" %>
<% end %>

推荐答案

使用rails_has_elegance和网络上的一些信息，我提出了以下解决方案.

Using some info from rails_has_elegance and the web I came up with the following solution.

用户/编辑视图:

<%= form_for(@user, :html => {:multipart => true}) do |f| %>
  <%= render 'shared/error_messages', object: f.object %>
  <%= f.text_field :name, placeholder: :name %>
  <%= f.text_field :email, placeholder: :email %>
  <%= password_field_tag :current_password, params[:current_password], placeholder: "Current password" %>
  <%= f.password_field :password, placeholder: "New password (optional)" %>
  <%= f.password_field :password_confirmation, placeholder: "Confirm new password" %>
<% end %>

用户模型:

validates :password, :on => :create
validates :password_confirmation, presence: true, :on => :update, :unless => lambda{ |user| user.password.blank? }

用户控制器:

def update
  @user = User.find(params[:id])
  user = User.find_by_email(current_user.email).try(:authenticate, params[:current_password])
  if user && @user.update_attributes(params[:user])
    flash[:success] = "Profile updated"
    sign_in @user
    redirect_to @user
  else
    flash.now[:error] = "Incorrect Current Password" unless user
    sign_in @user
    render 'edit'
  end
end

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