Fetch optional parameters not working in rails - ruby-on-rails

Question

I am sending optional paramters to a method but they are not received. Using binding.pry I have checked but the link parameter is not received but id parameter is received in the send_email method. It is always returned as nil. Please help find the problem where I am going wrong
class EmailsController < MyAccountController
def send_emails
#user = current_user
id = #user.id
HiringMailer.send_email(id, link: true).deliver_now
end
end
class HiringMailer < ApplicationMailer
def send_email(id, joining = false, options={})
link = options[:link]
binding.pry_remote
#user = User.find(id)
#joining_user = joining
to = (['abc#yah.com', 'adx#yah.com']).flatten
mail to: to, subject: "Joining Date"
end
end
Update 1
HiringMailer.send_email(id, link: true).deliver_now
def send_email(id, joining = false, , **options)
binding.pry_remote
end

Answer 1

The link: true argument is getting swallowed up by the joining variable.
Let me explain. Here's the method signature:
def send_email(id, joining = false, options={})
Now, if you call that method with: send_email(123, link: true), then we end up with:
id = 123
joining = {link: true}
options = {}
To prevent this unwanted affect, you need to explicitly pass all three variables: send_email(123, false, link: true).
...But wait, there's an even better way! Use keyword arguments instead. You can define the method like this:
def send_email(id, joining: false, **options)
And call it exactly like you were doing before:
send_email(123, link: true)
The only minor difference (which is frankly a clear improvement) is that you'll need to invoke the method slightly differently if you want to set joining = true:
# Before:
send_email(123, true, link: true)
# After:
send_email(123, joining: true, link: true)