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  3. Railscasts # 396이 Excel 시트 가져 오기에 작동하지 않습니다.

Railscasts # 396이 Excel 시트 가져 오기에 작동하지 않습니다.

2013-10-04 1 views
0

Railscasts를 사용하여 CSV 및 Excel 파일을 업로드하는 기능을 만들었습니다. CSV 파일을 가져 오기 잘 작동,하지만 난 루 보석을 사용하여 엑셀 시트를 가져 오기위한 라이언의 코드를 사용하면, 에러가 발생한다 : 여기Railscasts # 396이 Excel 시트 가져 오기에 작동하지 않습니다.

"해시로 무기 호를 변환 할 수 없습니다"InventoryItemsController 번호 가져 오기에

형식 오류를 컨트롤러에서 가져 오기 방법 :

def import 
    InventoryItem.import(params[:file]) 
    redirect_to inventory_items_path, notice: "Inventory Items imported successfully!" 
end

내가 require 'csv'

모델의 코드와 함께 application.rb 파일에 require 'roo'이 것은 :

(자기 위까지의 코드를 사용하는 경우 

def self.import(file) 
    CSV.foreach(file.path, headers: true) do |row| 
     inventory_item = InventoryItem.find_by_inventory_id(row["inventory_id"]) || new 
     inventory_item.attributes = row.to_hash #.slice(*accessible_attributes) 
     inventory_item.save! 
    end 
    end

가 있지만 작동하지 않습니다 : 

def self.import(file) 
    spreadsheet = open_spreadsheet(file) 
    header = spreadsheet.row(1) 
    (2..spreadsheet.last_row).each do |i| 
    row = Hash[[header, spreadsheet.row(i)].transpose] 
    inventory_item = InventoryItem.find_by_inventory_id(row["inventory_id"]) || new 
    inventory_item.attributes = row.to_hash #.slice(*accessible_attributes) 
    inventory_item.save! 
    end 
end 

def self.open_spreadsheet(file) 
    binding.pry 
    case File.extname(file.original_filename) 
    when ".csv" then CSV.new(file.path, nil) 
    when ".xls" then Excel.new(file.path, nil) 
    when ".xlsx" then Excelx.new(file.path, nil) 
    else raise "Unknown file type: #{file.original_filename}" 
    end 
end

그래서,에 붙어 요점은 다음 코드를 성공적으로 CSV 파일 가져 오기는 점이다. self.open_spreadsheet를 사용하여 가져 오기).

이것은 Roo 젬을 사용하고 있습니다. 나는이 방법들에서 약간의 재 작성이 있다고 생각합니다. 그러나 나는 정말로 확신하지 못합니다. 나는 이것을하기 위해 무엇을 해야할지에 매달 렸습니다.

도움이 될 것입니다. 감사합니다. 오류의

전체 추적 :

TypeError (can't convert nil into Hash) 
/Users/marcacyr/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/csv.rb:1565:in `merge' 
/Users/marcacyr/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/csv.rb:1565:in `initialize' 
app/models/inventory_item.rb:27:in `new' 
app/models/inventory_item.rb:27:in `open_spreadsheet' 
app/models/inventory_item.rb:14:in `import' 
app/controllers/inventory_items_controller.rb:85:in `import' 
actionpack (3.0.9) lib/action_controller/metal/implicit_render.rb:4:in `send_action' 
actionpack (3.0.9) lib/abstract_controller/base.rb:150:in `process_action' 
actionpack (3.0.9) lib/action_controller/metal/rendering.rb:11:in `process_action' 
actionpack (3.0.9) lib/abstract_controller/callbacks.rb:18:in `block in process_action' 
activesupport (3.0.9) lib/active_support/callbacks.rb:476:in `_run__2908593346646715497__process_action__1677791179652643815__callbacks' 
activesupport (3.0.9) lib/active_support/callbacks.rb:410:in `_run_process_action_callbacks' 
activesupport (3.0.9) lib/active_support/callbacks.rb:94:in `run_callbacks' 
actionpack (3.0.9) lib/abstract_controller/callbacks.rb:17:in `process_action' 
actionpack (3.0.9) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action' 
activesupport (3.0.9) lib/active_support/notifications.rb:52:in `block in instrument' 
activesupport (3.0.9) lib/active_support/notifications/instrumenter.rb:21:in `instrument' 
activesupport (3.0.9) lib/active_support/notifications.rb:52:in `instrument' 
actionpack (3.0.9) lib/action_controller/metal/instrumentation.rb:29:in `process_action' 
actionpack (3.0.9) lib/action_controller/metal/rescue.rb:17:in `process_action' 
newrelic_rpm (3.6.1.88) lib/new_relic/agent/instrumentation/rails3/action_controller.rb:38:in `block in process_action' 
newrelic_rpm (3.6.1.88) lib/new_relic/agent/instrumentation/controller_instrumentation.rb:318:in `perform_action_with_newrelic_trace' 
newrelic_rpm (3.6.1.88) lib/new_relic/agent/instrumentation/rails3/action_controller.rb:37:in `process_action' 
actionpack (3.0.9) lib/abstract_controller/base.rb:119:in `process' 
actionpack (3.0.9) lib/abstract_controller/rendering.rb:41:in `process' 
rack-mini-profiler (0.1.31) Ruby/lib/mini_profiler/profiling_methods.rb:108:in `block in profile_method' 
actionpack (3.0.9) lib/action_controller/metal.rb:138:in `dispatch' 
actionpack (3.0.9) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch' 
actionpack (3.0.9) lib/action_controller/metal.rb:178:in `block in action' 
actionpack (3.0.9) lib/action_dispatch/routing/route_set.rb:62:in `call' 
actionpack (3.0.9) lib/action_dispatch/routing/route_set.rb:62:in `dispatch' 
actionpack (3.0.9) lib/action_dispatch/routing/route_set.rb:27:in `call' 
rack-mount (0.6.14) lib/rack/mount/route_set.rb:148:in `block in call' 
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:93:in `block in recognize' 
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:68:in `optimized_each' 
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:92:in `recognize' 
rack-mount (0.6.14) lib/rack/mount/route_set.rb:139:in `call' 
actionpack (3.0.9) lib/action_dispatch/routing/route_set.rb:493:in `call' 
newrelic_rpm (3.6.1.88) lib/new_relic/rack/error_collector.rb:12:in `call' 
newrelic_rpm (3.6.1.88) lib/new_relic/rack/agent_hooks.rb:18:in `call' 
newrelic_rpm (3.6.1.88) lib/new_relic/rack/browser_monitoring.rb:16:in `call' 
newrelic_rpm (3.6.1.88) lib/new_relic/rack/developer_mode.rb:28:in `call' 
meta_request (0.2.7) lib/meta_request/middlewares/app_request_handler.rb:13:in `call' 
rack-contrib (1.1.0) lib/rack/contrib/response_headers.rb:17:in `call' 
meta_request (0.2.7) lib/meta_request/middlewares/headers.rb:16:in `call' 
meta_request (0.2.7) lib/meta_request/middlewares/meta_request_handler.rb:13:in `call' 
meta_request (0.2.7) lib/meta_request/middlewares/request_id.rb:24:in `call' 
bullet (4.6.0) lib/bullet/rack.rb:10:in `call' 
actionpack (3.0.9) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call' 
actionpack (3.0.9) lib/action_dispatch/middleware/head.rb:14:in `call' 
rack (1.2.8) lib/rack/methodoverride.rb:24:in `call' 
actionpack (3.0.9) lib/action_dispatch/middleware/params_parser.rb:21:in `call' 
actionpack (3.0.9) lib/action_dispatch/middleware/flash.rb:182:in `call' 
actionpack (3.0.9) lib/action_dispatch/middleware/session/abstract_store.rb:149:in `call' 
actionpack (3.0.9) lib/action_dispatch/middleware/cookies.rb:302:in `call' 
activerecord (3.0.9) lib/active_record/query_cache.rb:32:in `block in call' 
activerecord (3.0.9) lib/active_record/connection_adapters/abstract/query_cache.rb:28:in `cache' 
activerecord (3.0.9) lib/active_record/query_cache.rb:12:in `cache' 
activerecord (3.0.9) lib/active_record/query_cache.rb:31:in `call' 
activerecord (3.0.9) lib/active_record/connection_adapters/abstract/connection_pool.rb:354:in `call' 
actionpack (3.0.9) lib/action_dispatch/middleware/callbacks.rb:46:in `block in call' 
activesupport (3.0.9) lib/active_support/callbacks.rb:416:in `_run_call_callbacks' 
actionpack (3.0.9) lib/action_dispatch/middleware/callbacks.rb:44:in `call' 
rack (1.2.8) lib/rack/sendfile.rb:106:in `call' 
actionpack (3.0.9) lib/action_dispatch/middleware/remote_ip.rb:48:in `call' 
airbrake (3.1.12) lib/airbrake/rails/middleware.rb:13:in `call' 
actionpack (3.0.9) lib/action_dispatch/middleware/show_exceptions.rb:47:in `call' 
railties (3.0.9) lib/rails/rack/logger.rb:13:in `call' 
rack (1.2.8) lib/rack/runtime.rb:17:in `call' 
activesupport (3.0.9) lib/active_support/cache/strategy/local_cache.rb:72:in `call' 
rack (1.2.8) lib/rack/lock.rb:13:in `block in call' 
<internal:prelude>:10:in `synchronize' 
rack (1.2.8) lib/rack/lock.rb:13:in `call' 
actionpack (3.0.9) lib/action_dispatch/middleware/static.rb:30:in `call' 
rack-mini-profiler (0.1.31) Ruby/lib/mini_profiler/profiler.rb:278:in `call' 
airbrake (3.1.12) lib/airbrake/user_informer.rb:16:in `_call' 
airbrake (3.1.12) lib/airbrake/user_informer.rb:12:in `call' 
railties (3.0.9) lib/rails/application.rb:168:in `call' 
railties (3.0.9) lib/rails/application.rb:77:in `method_missing' 
railties (3.0.9) lib/rails/rack/log_tailer.rb:14:in `call' 
rack (1.2.8) lib/rack/content_length.rb:13:in `call' 
rack (1.2.8) lib/rack/handler/webrick.rb:52:in `service' 
/Users/marcacyr/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service' 
/Users/marcacyr/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run' 
/Users/marcacyr/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread'

출처

2013-10-04 marcacyr

+1

당신이해야 보고있는 전체 스택 추적을 게시하십시오. 오류의 실제 출처에 대한 정보를 많이 제공하지 않았습니다. –

+0

전체 추적을 편집하여 포함했습니다. - 감사합니다! – marcacyr

답변

3

오류가 새 CSV을 만들려고 장소를 가리키는되고 오류가 정확히 어떤 문제가 당신을 말하고있다. nil을 해시로 변환 할 수 없습니다. CSV.new(file.path, nil) 대신 CSV.new(file.path, {}) 또는 CSV.new(file.path)을 사용해야합니다. 레일 4와 루비 2의

출처

2013-10-04 21:27:51

2

, 나는 수행 할 때 오류 "500 내부 서버 오류"가 Railscast #396

내 솔루션은 지금 사용하는 것입니다 :

Roo::CSV.new(file.path, csv_options: {col_sep: ";"})

대신

Csv.new(file.path, nil, :ignore)

출처

2014-05-09 05:41:40

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