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Ignacio San Martin
421 PointsNameError: undefined local variable or method `post' for main:Object
After creating the body for the post and doing the migration, when I try to update the variable body according to the video I get an error:
irb(main):003:0> Post.first
Post Load (0.6ms) SELECT "posts".* FROM "posts" ORDER BY "posts"."id" ASC LIMIT ? [["LIMIT", 1]]
=> #<Post id: 1, title: "First post!", created_at: "2016-08-27 15:31:40", updated_at: "2016-08-27 15:31:40", body: nil>
irb(main):004:0> post.body = "This is my first post!"
NameError: undefined local variable or method post' for main:Object
from (irb):4
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/console.rb:65:instart'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/console_helper.rb:9:in start'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:78:inconsole'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:49:in run_command!'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands.rb:18:in<top (required)>'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/dependencies.rb:293:in require'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/dependencies.rb:293:inblock in require'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/dependencies.rb:259:in load_dependency'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/dependencies.rb:293:inrequire'
from /Users/ignacio/blog/bin/rails:9:in <top (required)>'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/dependencies.rb:287:inload'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/dependencies.rb:287:in block in load'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/dependencies.rb:259:inload_dependency'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/dependencies.rb:287:in load'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/commands/rails.rb:6:incall'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/command_wrapper.rb:38:in call'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:191:inblock in serve'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:161:in fork'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:161:inserve'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:131:in block in run'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:125:inloop'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:125:in run'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/application/boot.rb:19:in<top (required)>'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in require'
from /Users/ignacio/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:inrequire'
from -e:1:in `<main>'
irb(main):005:0>
What am I doing wrong?
1 Answer
Bill Rogers
12,944 PointsHi Ignacio,
You need to assign your Post.first to the variable post (by entering post = Post.first). At the moment you are asking the Rails console to show you the first post but not storing it in a variable that you can do anything with.
Hope that helps!