ruby - Rails: Model method doesn't execute as a cron task in development -

i writing application in ruby on rails fetches data (videoid string, title string, thumbnail url string, , date of when video created datetime type) youtube , saves database.

i have tested youtube api in pure ruby before , know output should correct, should return data mentioned previously. however, can't seem make work in rails cron job using whenever gem.

below have 2 methods interact model. 1 of them works , other 1 doesn't. 1 doesn't self.create_youtube_posts , 1 test method created check whether gets executed cron job using whenever gem (self.create_test_posts).

problem me don't see error messages first one, code doesn't execute. if explain me why 1 method work , other doesn't, or nudge me in right direction, appreciated. please note not question asking on youtube api, rather ruby code.

app/models/post.rb

class post < activerecord::base      # method not working!     def self.create_youtube_posts          require 'faraday'         require 'rubygems'         require 'google/api_client'         require 'trollop'          developer_key = "my_api_key_goes_here"         youtube_api_service_name = "youtube"         youtube_api_version = "v3"          opts = trollop::options           opt :maxresults, 'max results', :type => :int, :default => 18           opt :order, 'order', :type => string, :default => 'viewcount'            opt :publishedafter, 'date', :default => (time.now - 1.day).to_datetime         end          client = google::apiclient.new(:key => developer_key,                                :authorization => nil)         youtube = client.discovered_api(youtube_api_service_name, youtube_api_version)          # call search.list method retrieve results matching specified         # query term.         opts[:part] = 'id,snippet'         search_response = client.execute!(:api_method => youtube.search.list,                                           :parameters => opts)          search_response.data.items.each |search_result|             case search_result.id.kind                 when 'youtube#video'                      # vi short videoid                     vi = '<iframe width="425" height="349" src="http://www.youtube.com/embed/'                        + "#{search_result.id.videoid}"                         + '" frameborder="0" allowfullscreen></iframe>'                      # t short title                     t = "#{search_result.snippet.title}"                      # tn short thumbnail                     tn = "#{search_result.snippet.thumbnails.high.url}"                      # dt short datetime                     dt = "#{search_result.snippet.publishedat}"                      @post = post.new(videoid: vi,                                   title: t,                                   thumbnail: tn,                                   date: dt)                     @post.save                               end         end     end      # method working fine!     def self.create_test_posts         @test_post = post.new(videoid: "sample video id",                                title: "sample title",                                thumbnail: "sample thumbnail",                                date: (time.now).to_datetime)         @test_post.save     end end 

for reference included schedule.rb file use generate cron jobs.

config/schedule.rb

every 1.day     runner "post.create_youtube_posts", :environment => :development end 

here list of commands may debug if cron has executed @ given time , period.

grep cron /var/log/syslog -- check history of cron run
bundle exec whenever or whenever -i -- update crontab
crontab -l -- see updated cron(for users)
crontab -e, specific user: crontab -e -u username -- list users cron's task
crontab -r -- removes crontab entry cron spooler, not crontab file.

reference:
minute hour day of month month day of week user command
(0-59) (0-23) (1-31) (1-12 or jan-dec) (0-6 or sun-sat)
0 2 * * * root /usr/bin/find