rails nomethoderror seulement en production

Question

J'ai une application rails avec google calendar API intégré. L'application est déployée sur heroku. Le code suivant fonctionne dans localhost mais j'obtiens une erreur de nom dans la production comme indiqué ci-dessous. Pourquoi cela arrive-t-il?

erreurs pour get_own_events:

Attempting refresh of access token & retry of request 
2016-02-10T13:24:34.161850+00:00 app[web.1]: 
2016-02-10T13:24:34.161853+00:00 app[web.1]: NoMethodError (undefined method `each' for nil:NilClass): 
2016-02-10T13:24:34.161854+00:00 app[web.1]: lib/google_calendar_api.rb:91:in `get_own_events' 
2016-02-10T13:24:34.161855+00:00 app[web.1]: app/controllers/events_controller.rb:18:in `index' 

erreurs pour obtenir des événements occupés:

2016-02-10T13:24:00.716112+00:00 app[web.1]: Attempting refresh of access token & retry of request 
2016-02-10T13:24:00.779120+00:00 app[web.1]: NoMethodError (undefined method `[]' for nil:NilClass): 
2016-02-10T13:24:00.779121+00:00 app[web.1]: lib/google_calendar_api.rb:38:in `get_busy_events' 
2016-02-10T13:24:00.779121+00:00 app[web.1]: app/controllers/events_controller.rb:20:in `index' 

events_controller

if params['start'] && params['end'] 
    @start_time = params['start'].to_datetime.rfc3339 
    @end_time = params['end'].to_datetime.rfc3339 
    @timezone = params['timezoneParam'] 
    if @user == @current_user 
     @results = get_own_events(@google, @start_time, @end_time, @timezone) 
    else 
     @results = get_busy_events(@google, @start_time, @end_time, @timezone) 
    end 
    end 

méthode get_own_events:

def get_own_events(social_object, start_time, end_time, timezone) 
    client = init_google_api_calendar_client(social_object) 
    old_token = client.authorization.access_token 
    service = client.discovered_api('calendar', 'v3') 

    #API request/response 
    result_raw = client.execute(
    :api_method => service.events.list, 
    :parameters => { 'calendarId' => social_object.email, 
        'timeMin' => start_time, 
        'timeMax' => end_time, 
        'timeZone' => timezone }, 
    :headers => {'Content-Type' => 'application/json'}) 

    #token refresh if needed 
    new_token = client.authorization.access_token 
    if old_token != new_token 
    social_object.update_attribute(:token, new_token) 
    get_own_events(social_object, start_time, end_time, timezone) 
    end 

    #API response parsing 
    result = JSON.parse(result_raw.body)['items'] 
    #result_timezone = JSON.parse(result_raw.body)['timeZone'] 

    #changing response to fullcalendar format 
    formatted_event_array = [] 

    result.each do |event| #THIS IS LINE 91 
    start_time = event['start']['dateTime'].to_datetime.rfc822 
    end_time = event['end']['dateTime'].to_datetime.rfc822 
    #timezone = result_timezone 
    all_day = false 
    title = event['summary'] 
    formatted_event = {} 
    formatted_event['title'] = title 
    formatted_event['start'] = start_time 
    formatted_event['end'] = end_time 
    formatted_event['allDay'] = all_day 
    formatted_event_array << formatted_event 
    end 

    return formatted_event_array 
end 

méthode get_busy_events:

def get_busy_events(social_object, start_time, end_time, timezone) 
    client = init_google_api_calendar_client(social_object) 
    old_token = client.authorization.access_token 
    service = client.discovered_api('calendar', 'v3') 

    #API request/response 
    result_raw = client.execute(
    :api_method => service.freebusy.query, 
    :body => JSON.dump({ 
      :timeMin => start_time, 
      :timeMax => end_time, 
      :timeZone => timezone, 
      :items => [{ :id => social_object.email }]}), 
    :headers => {'Content-Type' => 'application/json'}) 

    #token refresh if needed 
    new_token = client.authorization.access_token 
    if old_token != new_token 
    social_object.update_attribute(:token, new_token) 
    get_busy_events(social_object,start_time, end_time, timezone) 
    end 

    #API response parsing 
    result = JSON.parse(result_raw.body)['calendars'][social_object.email]['busy'] #THIS IS LINE 38 

    #changing response to fullcalendar format 
    formatted_event_array = [] 

    result.each do |event| 
    start_time = event['start'].to_datetime.rfc822 
    end_time = event['end'].to_datetime.rfc822 
    formatted_event = {} 
    formatted_event['title'] = 'busy' 
    formatted_event['start'] = start_time 
    formatted_event['end'] = end_time 
    #no allDay in freebusy response, so time difference must be checked 
    if event['start'].to_datetime + 1.day <= event['end'].to_datetime 
     formatted_event['allDay'] = true 
    else 
     formatted_event['allDay'] = false 
    end 
    formatted_event_array << formatted_event 
    end 

    return formatted_event_array 
end 

Answer 1

efficacement est ce

result = JSON.parse(result_raw.body)['calendars'][social_object.email]['busy'] 

Si JSON.parse(result_raw.body)['calendars'][social_object.email]['busy'] est nul alors ce

result.each do |event| 
# code 
end 

tente de itérer sur zéro.

Vous pouvez résoudre ce problème avec une clause de garde

return formatted_event_array if result.nil? 
result.each do |event| 
# code 
end 

Mais pour moi qui est un peu plus tapisser les mailles du filet. L'autre erreur est due à cette même ligne.

En supposant parsed_body = JSON.parse(result_raw.body)

En enchaînant les appels de hachage sans vérifier ça va jeter votre erreur si parsed_body['calendars'] est nul ou si parsed_body['calendars'][social_object.email] est nul

donc efficacement que vous voulez vérifier si les deux existent, et qu'il existe parsed_body['calendars'][social_object.email]['busy']. Si elles ne sont pas alors revenir sans doute le tableau vide

Alors

if parsed_body['calendars'] && parsed_body['calendars'][social_object.email] && parsed_body['calendars'][social_object.email]['busy']