Callback is not working - ruby-on-rails

Question

I have two callbacks that aren't working in my model. They don't raises any error messages either.
The first callback is: after_update :state_closed and I want to use this to close the ticket when I select ticket state from the view 'solved' or 'canceled'. So, I want it in this case is to be closed
The second callback is after_create :assign_state and I want to use this to say the ticket is assigned or its not assigned so if the employee_id is blank thats mean the ticket is not assigned to any employee yet. If employee_id is not black so this ticket is assigned
Here is my ticket.rb
class Ticket < ActiveRecord::Base
before_save :default_values
after_update :state_closed
after_create :assign_state
attr_accessible :description, :title, :employee_department_id, :user_id, :first_name,
:last_name , :email, :state_id, :employee_id, :ticket_state, :assign_state
belongs_to :employee_department
belongs_to :user
belongs_to :state
belongs_to :employee
has_many :replies
def default_values
self.state_id = 3 if self.state_id.nil?
end
def to_label
ticket_state.to_s
end
def state_closed
if self.ticket_state == "Solved" || self.ticket_state == "Canceled"
self.ticket_state = "Closed"
self.save
end
end
def assign_state
if self.employee_id.nil?
self.assign_state = "Un-assigned"
else
self.assign_state = "Assigned"
end
end
Ticket.all.each do |ticket|
if ticket.ticket_state.blank?
ticket.ticket_state = 'open'
end
ticket.save
end
...
This is from server logs when i choose "solved" for example it is updated to "solved" if my callbacks are working then in this case it should change from solved to closed but that's not happening
Started PUT "/tickets/1" for 127.0.0.1 at 2013-09-14 21:46:54 +0200
Processing by TicketsController#update as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"LZRTSjq9EWqgG6ub3xpd7fioWNtY1SSzy5XQA8ZNep0=", "ticket"=>{"ticket_state"=>"solved"}, "id"=>"1"}
User Load (0.3ms) SELECT "users".* FROM "users" WHERE "users"."id" = 1 LIMIT 1
State Load (0.1ms) SELECT "states".* FROM "states"
Ticket Load (0.1ms) SELECT "tickets".* FROM "tickets" WHERE "tickets"."id" = ? LIMIT 1 [["id", "1"]]
(0.0ms) begin transaction
(0.2ms) UPDATE "tickets" SET "ticket_state" = 'solved', "updated_at" = '2013-09-14 19:46:54.926307' WHERE "tickets"."id" = 1
(95.2ms) commit transaction
Redirected to http://localhost:3000/tickets
Completed 302 Found in 100ms (ActiveRecord: 96.0ms)

Answer 1

The issues with each are as follows:
state_closed is not being called because of capitalization issue: "solved" does not equal "Solved". Change the capitalizations to match, or compare the strings when they're both downcased.
assign_state is probably being called, but not persisting because you never actually save the model once it's changed. Try saving after you update on create.