add: download and import user template xlsx

app/controllers/admins/import_users_controller.rb

@@ -2,7 +2,7 @@ class Admins::ImportUsersController < Admins::BaseController
   def create
     return render_error('请上传正确的文件') if params[:file].blank? || !params[:file].is_a?(ActionDispatch::Http::UploadedFile)
 
-    result = Admins::ImportUserService.call(params[:file].to_io)
+    result = Admins::ImportUserFromExcelService.call(params[:file].to_io)
     render_ok(result)
   rescue Admins::ImportUserService::Error => ex
     render_error(ex)

app/imports/admins/new_import_user_from_excel.rb

@@ -0,0 +1,15 @@
+class Admins::NewImportUserFromExcel < BaseImportXlsx
+  UserData = Struct.new(:login, :email, :password, :nickname)
+
+  def read_each(&block)
+    sheet.each_row_streaming(pad_cells: true, offset: 1) do |row|
+      data = row.map(&method(:cell_value))[0..3]
+      block.call UserData.new(*data)
+    end
+  end
+
+  private 
+  def cell_value(obj)
+    obj&.cell_value 
+  end
+end

app/services/admins/import_user_from_excel_service.rb

@@ -0,0 +1,71 @@
+class Admins::ImportUserFromExcelService < ApplicationService 
+  Error = Class.new(StandardError)
+
+  attr_reader :file, :result
+
+  def initialize(file)
+    @file = file 
+    @result = { success: 0, fail: [] }
+  end
+
+  def call 
+    raise Error, '文件不存在' if file.blank?
+    excel = Admins::NewImportUserFromExcel.new(file)
+
+    excel.read_each(&method(:save_user))
+    result 
+  rescue ApplicationImport::Error => ex 
+    raise Error, ex.message
+  end
+
+  private 
+  def save_user(data)
+    user = find_user(data)
+    if user.blank? 
+      create_user(data)
+      result[:success] +=1
+    else 
+      fail_data = data.as_json
+      fail_data[:data] = fail_data.values.join(",")
+      fail_data[:message] = '用户已存在'
+      result[:fail] << fail_data  
+    end
+
+  rescue Exception => ex 
+    fail_data = data.as_json
+    fail_data[:data] = fail_data.values.join(",")
+    fail_data[:message] = ex.message
+    result[:fail] << fail_data  
+  end
+
+  def create_user(data)
+    ActiveRecord::Base.transaction do 
+      username = data.login&.gsub(/\s+/, "")
+      email = data.email&.gsub(/\s+/, "")
+      password = data.password
+      nickname = data.nickname&.gsub(/\s+/, "")
+      raise Error, "无法使用以下关键词：#{username}，请重新命名" if ReversedKeyword.check_exists?(data.login)
+      Register::RemoteForm.new({username: username, email: email, password: password, platform: 'forge'}).validate!
+      user = User.new(admin: false, login: username, mail: email, nickname: nickname, platform: 'forge' , type: "User")
+      user.password = password
+      user.activate
+      raise Error, user.errors.full_messages.join(",") unless user.valid?
+      interactor = Gitea::RegisterInteractor.call({username: username, email: email, password: password})
+      if interactor.success?
+        gitea_user = interactor.result
+        result = Gitea::User::GenerateTokenService.call(username, password)
+        user.gitea_token = result['sha1']
+        user.gitea_uid = gitea_user[:body]['id']
+        UserExtension.create!(user_id: user.id) if user.save! 
+      else 
+        raise interactor.error, 'gitea user create error' 
+      end
+
+      user
+    end
+  end
+
+  def find_user(data)
+    User.find_by(login: data.login)
+  end
+end

app/views/admins/users/index.html.erb

@@ -31,7 +31,9 @@
     <%= submit_tag('搜索', class: 'btn btn-primary ml-3', 'data-disable-with': '搜索中...') %>
   <% end %>
 
-  <%= javascript_void_link '导入用户', class: 'btn btn-secondary btn-sm', data: { toggle: 'modal', target: '.admin-import-user-modal'} %>
+  <%= link_to '下载导入模板', "/导入用户模板.xlsx", class: 'btn btn-secondary mr-3' %>
+
+  <%= javascript_void_link '导入用户', class: 'btn btn-secondary', data: { toggle: 'modal', target: '.admin-import-user-modal'} %>
   
 </div>