Ruby – How to set defaults for ransack sorting

ransackrubyruby-on-rails-3.2

To put simply enough, I'd just like to know if there's a way to set defaults for the sorting functionality using the Ransack gem? ie.

Currently, I have the following when the page loads:

empty_ransack

But instead, I'd like to have the following defaults when the page loads:

ransack with defaults

Is it possible to do this via proper configuration of the Ransack Gem?

Thanks in advance as always!

Best Regards!

Best Answer

This works for me:

@search = Change.search(params[:q])
@search.sorts = 'updated_at desc' if @search.sorts.empty?

Note: I had some head scratching at first, when I had desc in uppercase – that just doesn't work.

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Ruby – How to write a switch statement in Ruby

Ruby uses the case expression instead.

case x
when 1..5
  "It's between 1 and 5"
when 6
  "It's 6"
when "foo", "bar"
  "It's either foo or bar"
when String
  "You passed a string"
else
  "You gave me #{x} -- I have no idea what to do with that."
end

Ruby compares the object in the when clause with the object in the case clause using the === operator. For example, 1..5 === x, and not x === 1..5.

This allows for sophisticated when clauses as seen above. Ranges, classes and all sorts of things can be tested for rather than just equality.

Unlike switch statements in many other languages, Ruby’s case does not have fall-through, so there is no need to end each when with a break. You can also specify multiple matches in a single when clause like when "foo", "bar".

Ruby – How to make –no-ri –no-rdoc the default for gem install

You just add the following line to your local ~/.gemrc file (it is in your home folder):

gem: --no-document

or you can add this line to the global gemrc config file.

Here is how to find it (in Linux):

strace gem source 2>&1 | grep gemrc

The --no-document option is documented in the RubyGems CLI Reference.

Best Answer

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