Неопределенный метод `map 'for 1: Fixnum

-1

Я хочу отправлять пользователям по электронной почте каждый раз, когда добавляется новое обращение, которое находится под интересующей их категорией.Неопределенный метод `map 'for 1: Fixnum

У меня есть таблица соединений interests_users, которая содержит user_id и interest_id. Обработки имеют переменную, называемую category, которая используется для сравнения интересов.

Это то, что выглядит блок создания в моем контроллере обработки.

def create 
    @treatment = Treatment.new(treatment_params) 
    respond_to do |format| 
    if @treatment.save 
     interest = Interest.find_by(name: @treatment.category) 
     if interest 
     User.find_by_sql("SELECT * FROM users 
        INNER JOIN interests_users ON clients.id = interests_users.client_id 
        WHERE interests_users.interest_id = ?", interest.id).each do |user| 
      Bestevermailer.treatmentNotification(user, @treatment).deliver 
     end 
     end 

     format.html { redirect_to @treatment, notice: 'Treatment was successfully created.' } 
     format.json { render :show, status: :created, location: @treatment } 
    else 
     format.html { render :new } 
     format.json { render json: @treatment.errors, status: :unprocessable_entity } 
    end 
    end 
end

Полный след

activerecord (4.2.5) lib/active_record/connection_adapters/sqlite3_adapter.rb:289:in `exec_query' 
activerecord (4.2.5) lib/active_record/connection_adapters/abstract/database_statements.rb:355:in `select' 
activerecord (4.2.5) lib/active_record/connection_adapters/abstract/database_statements.rb:32:in `select_all' 
activerecord (4.2.5) lib/active_record/connection_adapters/abstract/query_cache.rb:68:in `block in select_all' 
activerecord (4.2.5) lib/active_record/connection_adapters/abstract/query_cache.rb:83:in `cache_sql' 
activerecord (4.2.5) lib/active_record/connection_adapters/abstract/query_cache.rb:68:in `select_all' 
activerecord (4.2.5) lib/active_record/querying.rb:39:in `find_by_sql' 
app/controllers/treatments_controller.rb:72:in `block in create' 
actionpack (4.2.5) lib/action_controller/metal/mime_responds.rb:212:in `respond_to' 
app/controllers/treatments_controller.rb:68:in `create' 
actionpack (4.2.5) lib/action_controller/metal/implicit_render.rb:4:in `send_action' 
actionpack (4.2.5) lib/abstract_controller/base.rb:198:in `process_action' 
actionpack (4.2.5) lib/action_controller/metal/rendering.rb:10:in `process_action' 
actionpack (4.2.5) lib/abstract_controller/callbacks.rb:20:in `block in process_action' 
activesupport (4.2.5) lib/active_support/callbacks.rb:117:in `call' 
activesupport (4.2.5) lib/active_support/callbacks.rb:117:in `call' 
activesupport (4.2.5) lib/active_support/callbacks.rb:555:in `block (2 levels) in compile' 
activesupport (4.2.5) lib/active_support/callbacks.rb:505:in `call' 
activesupport (4.2.5) lib/active_support/callbacks.rb:505:in `call' 
activesupport (4.2.5) lib/active_support/callbacks.rb:92:in `__run_callbacks__' 
activesupport (4.2.5) lib/active_support/callbacks.rb:778:in `_run_process_action_callbacks' 
activesupport (4.2.5) lib/active_support/callbacks.rb:81:in `run_callbacks' 
actionpack (4.2.5) lib/abstract_controller/callbacks.rb:19:in `process_action' 
actionpack (4.2.5) lib/action_controller/metal/rescue.rb:29:in `process_action' 
actionpack (4.2.5) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action' 
activesupport (4.2.5) lib/active_support/notifications.rb:164:in `block in instrument' 
activesupport (4.2.5) lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
activesupport (4.2.5) lib/active_support/notifications.rb:164:in `instrument' 
actionpack (4.2.5) lib/action_controller/metal/instrumentation.rb:30:in `process_action' 
actionpack (4.2.5) lib/action_controller/metal/params_wrapper.rb:250:in `process_action' 
activerecord (4.2.5) lib/active_record/railties/controller_runtime.rb:18:in `process_action' 
actionpack (4.2.5) lib/abstract_controller/base.rb:137:in `process' 
actionview (4.2.5) lib/action_view/rendering.rb:30:in `process' 
actionpack (4.2.5) lib/action_controller/metal.rb:196:in `dispatch' 
actionpack (4.2.5) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch' 
actionpack (4.2.5) lib/action_controller/metal.rb:237:in `block in action' 
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:76:in `call' 
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:76:in `dispatch' 
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:45:in `serve' 
actionpack (4.2.5) lib/action_dispatch/journey/router.rb:43:in `block in serve' 
actionpack (4.2.5) lib/action_dispatch/journey/router.rb:30:in `each' 
actionpack (4.2.5) lib/action_dispatch/journey/router.rb:30:in `serve' 
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:817:in `call' 
rack (1.6.4) lib/rack/etag.rb:24:in `call' 
rack (1.6.4) lib/rack/conditionalget.rb:38:in `call' 
rack (1.6.4) lib/rack/head.rb:13:in `call' 
actionpack (4.2.5) lib/action_dispatch/middleware/params_parser.rb:27:in `call' 
actionpack (4.2.5) lib/action_dispatch/middleware/flash.rb:260:in `call' 
rack (1.6.4) lib/rack/session/abstract/id.rb:225:in `context' 
rack (1.6.4) lib/rack/session/abstract/id.rb:220:in `call' 
actionpack (4.2.5) lib/action_dispatch/middleware/cookies.rb:560:in `call' 
activerecord (4.2.5) lib/active_record/query_cache.rb:36:in `call' 
activerecord (4.2.5) lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call' 
activerecord (4.2.5) lib/active_record/migration.rb:377:in `call' 
actionpack (4.2.5) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' 
activesupport (4.2.5) lib/active_support/callbacks.rb:88:in `__run_callbacks__' 
activesupport (4.2.5) lib/active_support/callbacks.rb:778:in `_run_call_callbacks' 
activesupport (4.2.5) lib/active_support/callbacks.rb:81:in `run_callbacks' 
actionpack (4.2.5) lib/action_dispatch/middleware/callbacks.rb:27:in `call' 
actionpack (4.2.5) lib/action_dispatch/middleware/reloader.rb:73:in `call' 
actionpack (4.2.5) lib/action_dispatch/middleware/remote_ip.rb:78:in `call' 
actionpack (4.2.5) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call' 
web-console (2.2.1) lib/web_console/middleware.rb:39:in `call' 
actionpack (4.2.5) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call' 
railties (4.2.5) lib/rails/rack/logger.rb:38:in `call_app' 
railties (4.2.5) lib/rails/rack/logger.rb:20:in `block in call' 
activesupport (4.2.5) lib/active_support/tagged_logging.rb:68:in `block in tagged' 
activesupport (4.2.5) lib/active_support/tagged_logging.rb:26:in `tagged' 
activesupport (4.2.5) lib/active_support/tagged_logging.rb:68:in `tagged' 
railties (4.2.5) lib/rails/rack/logger.rb:20:in `call' 
actionpack (4.2.5) lib/action_dispatch/middleware/request_id.rb:21:in `call' 
rack (1.6.4) lib/rack/methodoverride.rb:22:in `call' 
rack (1.6.4) lib/rack/runtime.rb:18:in `call' 
activesupport (4.2.5) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call' 
rack (1.6.4) lib/rack/lock.rb:17:in `call' 
actionpack (4.2.5) lib/action_dispatch/middleware/static.rb:116:in `call' 
rack (1.6.4) lib/rack/sendfile.rb:113:in `call' 
railties (4.2.5) lib/rails/engine.rb:518:in `call' 
railties (4.2.5) lib/rails/application.rb:165:in `call' 
rack (1.6.4) lib/rack/lock.rb:17:in `call' 
rack (1.6.4) lib/rack/content_length.rb:15:in `call' 
rack (1.6.4) lib/rack/handler/webrick.rb:88:in `service' 
C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/webrick/httpserver.rb:138:in `service' 
C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/webrick/httpserver.rb:94:in `run' 
C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/webrick/server.rb:295:in `block in start_thread'

источник

2015-12-16 Fergus Morton

где вы используете ' map'? Пожалуйста, отправьте точную ошибку. – shivam

Добавлено полный след в OP –

Я предполагаю, что 7-я строка в вас фрагмент кода - строка 72, я прав? Вы можете подтвердить в консоли, если User.find_by_sql («...»). Each {| user | user.id} дает ту же ошибку? –

Попробуйте повторно обрамление запрос. Здесь:

User.joins('INNER JOIN interests_users ON clients.id = interests_users.client_id').where("interests_users.interest_id = ?", interest.id)

As per a similar SO:

find_by_sql не очень хорошо работает с заполнителями запроса

источник

2015-12-16 11:47:14 shivam

Спасибо за предложение, но этот запрос дал мне ошибку «SQLite3 :: SQLException: нет такого столбца: clients.id: SELECT» пользователей ". * FROM" users "INNER JOIN interest_users ON clients.id = interest_users.client_id WHERE (interest_users.interest_id = 1) ' –

Я просто скопировал ваш запрос Inner Join. Возможно, вам придется исправить это самостоятельно, так как я не знаю ваши структуры таблиц. – shivam

Хорошо спасибо. Можете ли вы объяснить мне, что означает рельсы, когда он дает ошибку «карты»? –

find_by_sql expects массив в качестве параметра:

User.find_by_sql([ 
    "SELECT * FROM users 
     INNER JOIN interests_users 
     ON clients.id = interests_users.client_id 
     WHERE interests_users.interest_id = ?", 
    interest.id]).each do |user|

источник

2015-12-16 13:07:45 mudasobwa

Спасибо за предложение. Я получаю ошибку, связанную с запросом и его таблицами, потому что я неправильно понял логику запроса. Я ненавижу запросы ... –

Неопределенный метод `map 'for 1: Fixnum

ответ

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