add expiry for login

app/models/employee.rb

@@ -21,12 +21,12 @@ class Employee < ApplicationRecord
 
   def self.login(emp_id, password)
     user = Employee.find_by_emp_id(emp_id)
+    expiry_time = login_expiry_time
     if (user)
       #user.authenticate(password)
-
       if (user.authenticate(password))
         user.generate_token
-        user.session_expiry = DateTime.now.utc + 30.minutes
+        user.session_expiry = DateTime.now.utc + expiry_time.minutes
         user.session_last_login = DateTime.now.utc
         user.save
         return user
@@ -41,9 +41,10 @@ class Employee < ApplicationRecord
   def self.authenticate_by_token(session_token)
     if (session_token)
       user = Employee.find_by_token_session(session_token)
+      expiry_time = login_expiry_time
       if user && user.session_expiry.utc > DateTime.now.utc
         #Extend the login time each time authenticatation take place
-        user.session_expiry = user.session_expiry.utc + 30.minutes
+        user.session_expiry = user.session_expiry.utc + expiry_time.minutes
         user.save
         return true
       else
@@ -72,5 +73,17 @@ class Employee < ApplicationRecord
       retry
   end
 
+  def self.login_expiry_time
+    expiry_time = 30
+    login_expiry = Lookup.collection_of('expiry_time')
+    if !login_expiry.empty?
+      login_expiry.each do |exp_time|
+        if exp_time[0].downcase == "login"
+          expiry_time = exp_time[1].to_i
+        end
+      end
+    end
 
+    return expiry_time
+  end
 end