Printing an array or object in Ruby on rails. Also view the structure of the data

ruby-on-rails ruby-on-rails-3 puts
Sachin Prasad picture Sachin Prasad · Oct 22, 2012 · Viewed 7.2k times · Source

I'm executing an Active Record query in controller. And now I want to view all of its contents weather it is in the form of array or object. I want to see the structure in which the data is being returned. I'm new to ruby on rails. In PHP we use var_dump() or print_r().

Answer

razorhead picture razorhead · Oct 22, 2012

There are a couple of ways to do this. If you want to play with the result interactively, open the rails console by typing rails console. Run the query you want in the console

query_result = MyModel.find_by_interesting_parameter( 'Foo' )

Then use the to_yaml method to dump a nice structure out

puts query_result.to_yaml

Sometimes, it's just easier to see what the view has had back. To do this, use the debug method in the view itself...

<%= debug @post %>

See this page here for more information

Related questions

How to get a random number in Ruby

How do I generate a random number between 0 and n?

Read More
Rails: How can I rename a database column in a Ruby on Rails migration?

I wrongly named a column hased_password instead of hashed_password. How do I update the database schema, using migration to rename this column?

Read More
How to remove a key from Hash and get the remaining hash in Ruby/Rails?

To add a new pair to Hash I do: {:a => 1, :b => 2}.merge!({:c => 3}) #=> {:a => 1, :b => 2, :c => 3} Is there a similar way to delete a key from Hash ? This works: {:a => 1, :b => 2}.…

Read More