Rails的在同一个控制器动作之间传递值

这是我的控制器：Rails的在同一个控制器动作之间传递值

class SchoolsController < ApplicationController 
     before_action :get_date 

     def show 

      @school = School.where(city_namespace: params[:city], title_namespace: params[:title]).first || raise(ActionController::RoutingError.new('Not Found')) 

     end 

    private 
     # get meeting date dynamically 
     # TODO: Access to date value in schools#show action 
    def get_date 
     @date = params[:date] 
     respond_to do |format| 
      format.json { render :json => @date.as_json } 
     end 
    end 
end

的get_date方法检索与Ajax调用日期：

$('.next-step').click(function(e) { 
    e.preventDefault(); 
    var date = $('td.day.active').data('day'); 
    $.post('/get_date', { 
     date: date 
    }); 
});

但是当我使用before_action，我有这个错误：

ActionController::UnknownFormat

我不能在表演动作访问@date，但我必须这样做，到d isplay它在这里我的观点：

<div class="scheduler--picker-line-item <% if @school.meeting_already_booked?(@date, "#{time}:00") %>scheduler--picker-line-item--disabled <% end %>" data-value="<%= time %>:00">

随着这来自学校模型的方法：

def meeting_already_booked?(date, hour) 
    meeting_token = Meeting.find_by(date: date, mhour: hour) 
    if !meeting_token.nil? 
     puts true 
     return true 
    else 
     puts false 
     return false 
    end 
    end

是否有人知道这是什么错误？以及我如何访问show方法中的@date变量？

编辑

的loggs

Started GET "/auto-ecoles/paris/paris/auto-ecole-du-chateau" for ::1 at 2017-06-14 14:31:49 +0200 
Processing by SchoolsController#show as HTML 
    Parameters: {"department"=>"paris", "city"=>"paris", "title"=>"auto-ecole-du-chateau"} 

Completed 406 Not Acceptable in 1ms 
** [Raven] Event not sent due to excluded environment: development 

ActionController::UnknownFormat (ActionController::UnknownFormat): 
    actionpack (4.2.8) lib/action_controller/metal/mime_responds.rb:219:in `respond_to' 
    app/controllers/schools_controller.rb:95:in `get_date' 
    activesupport (4.2.8) lib/active_support/callbacks.rb:432:in `block in make_lambda' 
    activesupport (4.2.8) lib/active_support/callbacks.rb:164:in `call' 
    activesupport (4.2.8) lib/active_support/callbacks.rb:164:in `block in halting' 
    activesupport (4.2.8) lib/active_support/callbacks.rb:504:in `call' 
    activesupport (4.2.8) lib/active_support/callbacks.rb:504:in `block in call' 
    activesupport (4.2.8) lib/active_support/callbacks.rb:504:in `each' 
    activesupport (4.2.8) lib/active_support/callbacks.rb:504:in `call' 
    activesupport (4.2.8) lib/active_support/callbacks.rb:92:in `__run_callbacks__' 
    activesupport (4.2.8) lib/active_support/callbacks.rb:778:in `_run_process_action_callbacks' 
    activesupport (4.2.8) lib/active_support/callbacks.rb:81:in `run_callbacks' 
    actionpack (4.2.8) lib/abstract_controller/callbacks.rb:19:in `process_action' 
    actionpack (4.2.8) lib/action_controller/metal/rescue.rb:29:in `process_action' 
    actionpack (4.2.8) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action' 
    activesupport (4.2.8) lib/active_support/notifications.rb:164:in `block in instrument' 
    activesupport (4.2.8) lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
    activesupport (4.2.8) lib/active_support/notifications.rb:164:in `instrument' 
    actionpack (4.2.8) lib/action_controller/metal/instrumentation.rb:30:in `process_action' 
    actionpack (4.2.8) lib/action_controller/metal/params_wrapper.rb:250:in `process_action' 
    actionpack (4.2.8) lib/abstract_controller/base.rb:137:in `process' 
    actionview (4.2.8) lib/action_view/rendering.rb:30:in `process' 
    actionpack (4.2.8) lib/action_controller/metal.rb:196:in `dispatch' 
    actionpack (4.2.8) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch' 
    actionpack (4.2.8) lib/action_controller/metal.rb:237:in `block in action' 
    actionpack (4.2.8) lib/action_dispatch/routing/route_set.rb:74:in `call' 
    actionpack (4.2.8) lib/action_dispatch/routing/route_set.rb:74:in `dispatch' 
    actionpack (4.2.8) lib/action_dispatch/routing/route_set.rb:43:in `serve' 
    actionpack (4.2.8) lib/action_dispatch/journey/router.rb:43:in `block in serve' 
    actionpack (4.2.8) lib/action_dispatch/journey/router.rb:30:in `each' 
    actionpack (4.2.8) lib/action_dispatch/journey/router.rb:30:in `serve' 
    actionpack (4.2.8) lib/action_dispatch/routing/route_set.rb:817:in `call' 
    omniauth (1.6.1) lib/omniauth/strategy.rb:189:in `call!' 
    omniauth (1.6.1) lib/omniauth/strategy.rb:167:in `call' 
    rack-pjax (1.0.0) lib/rack/pjax.rb:12:in `call' 
    actionpack (4.2.8) lib/action_dispatch/middleware/flash.rb:260:in `call' 
    browser (0.6.0) lib/browser/middleware.rb:51:in `run_app' 
    browser (0.6.0) lib/browser/middleware.rb:31:in `call' 
    newrelic_rpm (3.7.3.204) lib/new_relic/rack/error_collector.rb:55:in `call' 
    newrelic_rpm (3.7.3.204) lib/new_relic/rack/agent_hooks.rb:32:in `call' 
    newrelic_rpm (3.7.3.204) lib/new_relic/rack/browser_monitoring.rb:27:in `call' 
    newrelic_rpm (3.7.3.204) lib/new_relic/rack/developer_mode.rb:45:in `call' 
    bullet (4.14.5) lib/bullet/rack.rb:10:in `call' 
    warden (1.2.7) lib/warden/manager.rb:36:in `block in call' 
    warden (1.2.7) lib/warden/manager.rb:35:in `catch' 
    warden (1.2.7) lib/warden/manager.rb:35:in `call' 
    rack (1.6.8) lib/rack/etag.rb:24:in `call' 
    rack (1.6.8) lib/rack/conditionalget.rb:25:in `call' 
    rack (1.6.8) lib/rack/head.rb:13:in `call' 
    remotipart (1.3.1) lib/remotipart/middleware.rb:32:in `call' 
    actionpack (4.2.8) lib/action_dispatch/middleware/params_parser.rb:27:in `call' 
    actionpack (4.2.8) lib/action_dispatch/middleware/flash.rb:260:in `call' 
    rack (1.6.8) lib/rack/session/abstract/id.rb:225:in `context' 
    rack (1.6.8) lib/rack/session/abstract/id.rb:220:in `call' 
    actionpack (4.2.8) lib/action_dispatch/middleware/cookies.rb:560:in `call' 
    actionpack (4.2.8) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' 
    activesupport (4.2.8) lib/active_support/callbacks.rb:88:in `__run_callbacks__' 
    activesupport (4.2.8) lib/active_support/callbacks.rb:778:in `_run_call_callbacks' 
    activesupport (4.2.8) lib/active_support/callbacks.rb:81:in `run_callbacks' 
    actionpack (4.2.8) lib/action_dispatch/middleware/callbacks.rb:27:in `call' 
    actionpack (4.2.8) lib/action_dispatch/middleware/reloader.rb:73:in `call' 
    actionpack (4.2.8) lib/action_dispatch/middleware/remote_ip.rb:78:in `call' 
    actionpack (4.2.8) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call' 
    web-console (2.3.0) lib/web_console/middleware.rb:28:in `block in call' 
    web-console (2.3.0) lib/web_console/middleware.rb:18:in `catch' 
    web-console (2.3.0) lib/web_console/middleware.rb:18:in `call' 
    actionpack (4.2.8) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call' 
    railties (4.2.8) lib/rails/rack/logger.rb:38:in `call_app' 
    railties (4.2.8) lib/rails/rack/logger.rb:20:in `block in call' 
    activesupport (4.2.8) lib/active_support/tagged_logging.rb:68:in `block in tagged' 
    activesupport (4.2.8) lib/active_support/tagged_logging.rb:26:in `tagged' 
    activesupport (4.2.8) lib/active_support/tagged_logging.rb:68:in `tagged' 
    railties (4.2.8) lib/rails/rack/logger.rb:20:in `call' 
    quiet_assets (1.0.2) lib/quiet_assets.rb:18:in `call_with_quiet_assets' 
    actionpack (4.2.8) lib/action_dispatch/middleware/request_id.rb:21:in `call' 
    rack (1.6.8) lib/rack/methodoverride.rb:22:in `call' 
    rack (1.6.8) lib/rack/runtime.rb:18:in `call' 
    activesupport (4.2.8) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call' 
    rack (1.6.8) lib/rack/lock.rb:17:in `call' 
    rack-livereload (0.3.15) lib/rack/livereload.rb:23:in `_call' 
    rack-livereload (0.3.15) lib/rack/livereload.rb:14:in `call' 
    actionpack (4.2.8) lib/action_dispatch/middleware/static.rb:120:in `call' 
    rack (1.6.8) lib/rack/sendfile.rb:113:in `call' 
    sentry-raven (0.13.3) lib/raven/integrations/rack.rb:54:in `call' 
    railties (4.2.8) lib/rails/engine.rb:518:in `call' 
    railties (4.2.8) lib/rails/application.rb:165:in `call' 
    rack (1.6.8) lib/rack/content_length.rb:15:in `call' 
    thin (1.5.1) lib/thin/connection.rb:81:in `block in pre_process' 
    thin (1.5.1) lib/thin/connection.rb:79:in `catch' 
    thin (1.5.1) lib/thin/connection.rb:79:in `pre_process' 
    thin (1.5.1) lib/thin/connection.rb:54:in `process' 
    thin (1.5.1) lib/thin/connection.rb:39:in `receive_data' 
    eventmachine (1.2.3) lib/eventmachine.rb:194:in `run_machine' 
    eventmachine (1.2.3) lib/eventmachine.rb:194:in `run' 
    thin (1.5.1) lib/thin/backends/base.rb:63:in `start' 
    thin (1.5.1) lib/thin/server.rb:159:in `start' 
    rack (1.6.8) lib/rack/handler/thin.rb:19:in `run' 
    rack (1.6.8) lib/rack/server.rb:287:in `start' 
    railties (4.2.8) lib/rails/commands/server.rb:80:in `start' 
    railties (4.2.8) lib/rails/commands/commands_tasks.rb:80:in `block in server' 
    railties (4.2.8) lib/rails/commands/commands_tasks.rb:75:in `tap' 
    railties (4.2.8) lib/rails/commands/commands_tasks.rb:75:in `server' 
    railties (4.2.8) lib/rails/commands/commands_tasks.rb:39:in `run_command!' 
    railties (4.2.8) lib/rails/commands.rb:17:in `<top (required)>' 
    bin/rails:8:in `require' 
    bin/rails:8:in `<top (required)>' 
    spring (1.3.4) lib/spring/client/rails.rb:28:in `load' 
    spring (1.3.4) lib/spring/client/rails.rb:28:in `call' 
    spring (1.3.4) lib/spring/client/command.rb:7:in `call' 
    spring (1.3.4) lib/spring/client.rb:26:in `run' 
    spring (1.3.4) bin/spring:48:in `<top (required)>' 
    spring (1.3.4) lib/spring/binstub.rb:11:in `load' 
    spring (1.3.4) lib/spring/binstub.rb:11:in `<top (required)>' 
    bin/spring:13:in `require' 
    bin/spring:13:in `<top (required)>' 
    bin/rails:3:in `load' 
    bin/rails:3:in `<main>'

编辑

post '/get_date' => 'schools#get_date', :defaults => { :format => 'json' }

来源

2017-06-14 Antonin Mrchd

你的'params [：date]'看起来像什么？ –

当我能够'puts @ date'时，它是这样的一个json对象：'{“date”：“12/09/2017”}' –

那么为什么你甚至想要转换？直接使用'@ date' –

添加:defaults => { :format => 'json' }的路线采取行动，像这样：

get 'get_date', to: 'school#get_date', :defaults => { :format => 'json' }

只是重新检查变量，因为我不熟悉你的路线。正如Md。Farhan说的那样，添加dataType也可能解决这个问题。

$.post('/get_date', { 
    date: date, 
    dataType: "json" 
});

来源

2017-06-14 14:39:35

我仍然有同样的错误：ActionController :: UnknownFormat –

将dataType：“json”添加为Md。Farhan说也会有所帮助。将编辑答案以显示如何。 –

我已经添加了'dataType：“json”'但我仍然有这个错误，我不明白为什么会出现这个错误 –

Rails的在同一个控制器动作之间传递值

回答

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