Question

我想向用户添加头像我做了一些步骤，但是当我更新用户时，我选择了照片，但它没有更新我不知道问题是什么每个其他属性都会成功更新。

edit.html.erb

    <%= form_for(current_user,:html => { :multipart => true }) 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 |message| %>
            <li><%= message %></li>
          <% end %>
          </ul>
        </div>
      <% end %>

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

      <div class="field">
        <%= f.label :Fullname %><br>
        <%= f.text_field :Fullname%>
      </div>


      <div class="field">
        <%= f.label :company %><br>
        <%= f.text_field :company %>
      </div>



      <div class="field">
        <%= f.label :age %><br>
        <%= f.number_field :age %>
      </div>

      <div class="field">
        <%= f.label :like_number %><br>
        <%= f.number_field :like_number %>
      </div>
      <div class="field">
        <%= f.label :dislike_number %><br>
        <%= f.number_field :dislike_number %>
      </div>
      <div class="field">
        <%= f.label :user_points %><br>
        <%= f.number_field :user_points %>
      </div>

      <div class="field">
        <%= f.label :avatar %><br>
        <%= f.file_field :avatar %>
      </div>
      <br>

      <div class="actions">
        <%= f.submit %>
      </div>
    <% end %>

users_controller

    def edit
      end

    def user_params
           params.require(:user).permit(:avatar, :age,:company,:username, :Fullname, :email, :password, :gender, :like_number, :dislike_number, :user_points)
        end

    def update
        respond_to do |format|
          if current_user.update(user_params)
            format.html { redirect_to @user, notice: 'User was successfully updated.' }
            format.json { render :show, status: :ok, location: @user }
          else
            format.html { render :edit }
            format.json { render json: @user.errors, status: :unprocessable_entity }
          end
        end
      end

users model

    #every user has an image (avatar)
        attr_accessor :avatar_file_name
        attr_accessor :avatar_content_type
        attr_accessor :avatar_file_size
        attr_accessor :avatar_updated_at
        #has_attached_file :avatar, 

     has_attached_file :avatar, :styles => { :medium => "300x300>", :thumb => "100x100#" }, :default_url => "/images/:style/missing.png"
      validates_attachment_content_type :avatar, :content_type => /\Aimage\/.*\Z/

migration

    class Avatar < ActiveRecord::Migration
      # save an image (avatar) of type attachment to user table in database  
    class AddAttachmentAvatarToProfiles < ActiveRecord::Migration
      def change
        add_attachment :users, :avatar
      end
    end 
    end


gemfile

    gem 'xpath', '~> 2.0.0'
    #to upload a photo use paperclip gem.
    #to use this gem you should download ImageMagick.
    #to download ImageMagick :
          # sudo apt-get update
          # sudo apt-get install imagemagick
    gem 'paperclip', '~> 3.0'

controller 
def show 
end

show.html.erb
<!--check if the user has a photo or not  -->
<!--if user hasn't a photo , display the defult photo -->
<!--if user has photo , display it -->

     <%if current_user.avatar.blank? %>
     <%if current_user.gender == 'Female'%>
      <img class="language-flag" src="/assets/girl.jpg" titile="Change Photo">
     <%else%>
      <img class="language-flag" src="/assets/boy.jpg" titile="Change Photo">
     <% end %>
     <%else%>
     <%= image_tag current_user.avatar.url(:large) %>
     <%end%>

Answer 1

你想让化身真正出现在哪里？我在user#show猜测？如果是这样，你也可以发布该代码。我猜你正在保存/上传好的东西，但只是没有从数据库中抓取东西并实际将它们发送到视图。

头像未更新

1 个答案: