Module: TapIf

Defined in:
lib/tap_if.rb

Instance Method Summary collapse

Instance Method Details

#tap_if(*args) {|_self| ... } ⇒ Object

Executes the given block if the caller is truthy or given the method name + args evaluate to a truthy value.

Useful for clarity - always return the caller but only execute the block when the condition passes.

Update the user's account token if the user is an admin of the account.

User.find(user_id).tap_if(:admin?, account) do |user| user.update_token(account) end

Only update twitter/facebook if the post actually publishes.

def publish (post.pending? && post.update_attributes(:published => true)).tap_if do the_update = "New blog post: #TapIf.post.title[0.post.title[0..100]... #TapIf.postpost.link"

Twitter.update(the_update)
Facebook.update(the_update)
end

end

Yields:

  • (_self)

Yield Parameters:

  • _self (TapIf) —

    the object that the method was called on



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# File 'lib/tap_if.rb', line 25

def tap_if(*args)
  yield self if (args.empty? && self || args.any? && respond_to?(args.first) && send(*args))

  self
end