Probably something wrong with my setup:
irb(main):001:0> truncate("Once upon a time in a world far far away", :length => 17)
NoMethodError: undefined method `truncate' for main:Object
from (irb):1
from /usr/lib64/ruby/gems/1.9.1/gems/railties-3.2.8/lib/rails/commands/console.rb:47:in `start'
from /usr/lib64/ruby/gems/1.9.1/gems/railties-3.2.8/lib/rails/commands/console.rb:8:in `start'
from /usr/lib64/ruby/gems/1.9.1/gems/railties-3.2.8/lib/rails/commands.rb:41:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
Looks like I cannot use any text helpers (both in irb and rails console).
What should I check?
The Rails Console exposes the helper methods through the helper variable. Therefore, please, use this instead:
helper.truncate("Once upon a time in a world far far away", :length => 17)
for more, please read this article on 37signals.com
type following line into your rails console
include ActionView::Helpers
now your helpers are accessible during the entire rails console session and you can continue like…
truncate("Once upon a time in a world far far away", :length => 17)
Related
I am currently following a recipe box tutorial on youtube.
When I open the rails console and type
#recipe = current_user.recipes.build
I got the following error:
NameError: undefined local variable or method `current_user' for main:Object
from (irb):3
from /Users/matthiascordes/.rvm/gems/ruby-2.3.1/gems/railties-5.0.0.1/lib/rails/commands/console.rb:65:in `start'
from /Users/matthiascordes/.rvm/gems/ruby-2.3.1/gems/railties-5.0.0.1/lib/rails/commands/console_helper.rb:9:in `start'
from /Users/matthiascordes/.rvm/gems/ruby-2.3.1/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:78:in `console'
from /Users/matthiascordes/.rvm/gems/ruby-2.3.1/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:49:in `run_command!'
from /Users/matthiascordes/.rvm/gems/ruby-2.3.1/gems/railties-5.0.0.1/lib/rails/commands.rb:18:in `<top (required)>'
from bin/rails:9:in `require'
from bin/rails:9:in `<main>'
Does anybody has an idea what is wrong and how I can solve this problem?
I am using the devise gem for my user model.
you can not access current_user inside your rails console,so try
user = User.find(your_user_id)
user.recipes.build
current_user is a variable provided by one of the before_filters of devise, therefore, outside a controller you don't have access to it, if you still want to be in that context, you can use gem byebug and drop a byebug inside your code, or a debugger and the execution will stop and you will be in the scope you need, to test all you are required, otherwise, plain in rails c, you will need to fetch the user the old way, with a query
User.find(user_id)
You cannot access current_user in rails console .
If you want the user variable, then search it like
user = User.find(some_id)
& then use it like user.recipes.build
you can also create the user from rails console like user = User.create(user parameters) & then use it building receipies
I am trying to add iframe to santized tags by using
config.action_view.sanitized_allowed_tags
I tried to find what tags are already allowed by using the console.
uraai#raiuorial:~/workspace/corse (master) $ heroku run rails c
Running rails c on ⬢ fa4... up, run.9396
Loading production environment (Rails 4.2.6)
irb(main):001:0> puts helper.sanitized_allowed_tags.to_a
NoMethodError: undefined method `sanitized_allowed_tags' for #<ActionView::Base:0x007f18ea91ea60>
from /app/vendor/bundle/ruby/2.3.0/gems/metamagic-3.1.7/lib/metamagic/view_helper.rb:30:in `method_missing'
from (irb):1
from /app/vendor/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/commands/console.rb:110:in `start'
from /app/vendor/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/commands/console.rb:9:in `start'
from /app/vendor/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:68:in `console'
from /app/vendor/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /app/vendor/bundle/ruby/2.3.0/gems/railties-4.2.6/lib/rails/commands.rb:17:in `<top (required)>'
from /app/bin/rails:8:in `require'
from /app/bin/rails:8:in `<main>'
irb(main):002:0>
Any idea how to add it without ignoring the other tags? Thanks
Please have a look on the next example:
module Tapp
class Application < Rails::Application
# In config/application.rb
config.action_view.sanitized_allowed_tags = ['strong', 'em', 'a', 'br', 'iframe']
# ...
end
My app called Tapp, I'm pretty sure you will have another name here ;)
Then in the console:
[retgoat#iMac-Roman ~/workspace/tapp]$ rc
Loading development environment (Rails 4.2.6)
[1] pry(main)> Tapp::Application.config.action_view[:sanitized_allowed_tags]
=> ["strong", "em", "a", "br", "iframe"]
(Rails 4.2.4) Hello, beginner here. I am working on a project which does not need a DB or activeRecord. Therefore, when making my Rails project I appended the -O (to disable Active Record and database) (rails new MyApp -O)
I read that to do a model not backed by a database you can just create a file in
app/models/site.rb.
No need to do:
rails generate model Site
So I added my model, which looks something like this:
class Site
attr_reader :name
attr_reader :out_average
attr_reader :in_average
attr_reader :change
def initialize(name, in_average, out_average)
#name = name
#out_average = out_average
#in_average = in_average
#change = find_increase
end
def find_increase()
if #in_average && #out_average != 0
#change = ((#in_average - #out_average)/#out_average)*100
else
#change = 0
end
return #change
end
end
So, I then started up console "rails c" and when I try to invoke a new Site object, I get an error:
irb(main):001:0> Site.new
NameError: uninitialized constant Site
from (irb):1
from /home/ms-87/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/railties-4.2.4/lib/rails/commands/console.rb:110:in `start'
from /home/ms-87/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/railties-4.2.4/lib/rails/commands/console.rb:9:in `start'
from /home/ms-87/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:68:in `console'
from /home/ms-87/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /home/ms-87/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/railties-4.2.4/lib/rails/commands.rb:17:in `<top (required)>'
from /home/ms-87/Documents/projects/rails_projects/site_seasonality/bin/rails:8:in `<top (required)>'
from /home/ms-87/.rbenv/versions/2.2.3/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /home/ms-87/.rbenv/versions/2.2.3/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from -e:1:in `<main>'
I made sure I started the console from the root of my app. I also made sure to use the proper naming convention (site.rb is the filename in app/model/, "Site" is the name of my class inside the file). Can anyone help me as to why this isn't working? Is my thinking here wrong? Thanks.
My first error was that my filenames were capitalized "Site.rb", I had actually fixed this before I posted. But after I fixed it, I accidentally started using "irb" instead of "rails c". DOH! Sorry for the post.
Hello i'm a beginner following the Lynda ruby on rails tutorial.
Here is the code I have to run subject = Subject.new. but everytime i type that into the rails console, I get this error.
NameError: uninitialized constant Subject
from (irb):1
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.0/lib/rails/co
mmands/console.rb:90:in `start'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.0/lib/rails/co
mmands/console.rb:9:in `start'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.0/lib/rails/co
mmands.rb:64:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
new is a method of Class. With your code
subject = Subject.new
you want to create an instance of the class Subject, but you it seems that you haven't defined a class Subject.
On irb you can do it this way:
class Subject
end
and now with
subject = Subject.new
you can create an instance of Subject, what you can test with
subject.class
=> #<Subject:0x007fca538325c8>
But this all makes not much sense if you haven't defined any methods for the class Subject. And this is all is essential ruby or essential OOP, so try to get some basic stuff about Ruby. I suggest Rubymonk or something else.
I am in the process of upgrading my app from Rails2 to Rails3.
My Rails2 app uses searchlogic heavily.
After googling i've come to know that searchlogic is not compatible with Rails3 and need to use meta_search instead.
But i havent quite understood the usage of meta_search vis-a-vis searchlogic.
If i have a User model with :name and :address fields, i am not able to use the following methods with meta_search. What am i doing wrong?
ruby-1.9.2-p0 > User.name_null
NoMethodError: undefined method `name_null' for #<Class:0x000000038d5ce0>
from /home/pratik/.rvm/gems/ruby-1.9.2-p0/gems/activerecord-3.0.3/lib/active_record/base.rb:1008:in `method_missing'
from (irb):7
from /home/pratik/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.3/lib/rails/commands/console.rb:44:in `start'
from /home/pratik/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.3/lib/rails/commands/console.rb:8:in `start'
from /home/pratik/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.3/lib/rails/commands.rb:23:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
None of the methods like User.user_id_eq(1) or User.name_equals("Blah") are working.
I guess i havent understood the usage of meta_search yet!
Ref:
meta_search https://github.com/ernie/meta_search
The methods are attributes to be set in a FormBuilder. As such, you'll want to call user_name_equals = "Bob", not user_name_equals("Bob"). Also, they'll be on a search instance, not the model itself.
#search = User.search(:user_name_eq => "Bob")
If you're looking for something to use in day to day query construction, try MetaWhere instead. http://metautonomo.us/projects/metawhere
Keep an eye on rd_searchlogic, which looks to be compatible with Rails 3, though still a preview as of this writing.
EDIT
As described in this SO thread, install via:
gem 'rd_searchlogic', :require => 'searchlogic', :git => 'git://github.com/railsdog/searchlogic.git'