adds methods to add/remove official position

app/models/user.rb

@@ -8,6 +8,7 @@ class User < ActiveRecord::Base
   validates :first_name, presence: true, unless: :use_nickname?
   validates :last_name, presence: true, unless: :use_nickname?
   validates :nickname, presence: true, if: :use_nickname?
+  validates :official_level, inclusion: {in: 0..5}
 
   def name
     use_nickname? ? nickname : "#{first_name} #{last_name}"
@@ -29,4 +30,12 @@ class User < ActiveRecord::Base
   def official?
     official_level && official_level > 0
   end
+
+  def add_official_position!(position, level)
+    update official_position: position, official_level: level.to_i
+  end
+
+  def remove_official_position!
+    update official_position: nil, official_level: 0
+  end
 end

db/schema.rb

@@ -12,6 +12,7 @@
 # It's strongly recommended that you check this file into your version control system.
 
 ActiveRecord::Schema.define(version: 20150815154430) do
+
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 

spec/models/user_spec.rb

@@ -120,4 +120,36 @@ describe User do
     end
   end
 
+  describe "add_official_position!" do
+    it "is false when level not valid" do
+      expect(subject.add_official_position!("Boss", 89)).to be false
+    end
+
+    it "updates official position fields" do
+      expect(subject).not_to be_official
+      subject.add_official_position!("Veterinarian", 2)
+
+      expect(subject).to be_official
+      expect(subject.official_position).to eq("Veterinarian")
+      expect(subject.official_level).to eq(2)
+
+      subject.add_official_position!("Brain surgeon", 3)
+      expect(subject.official_position).to eq("Brain surgeon")
+      expect(subject.official_level).to eq(3)
+    end
+  end
+
+  describe "remove_official_position!" do
+    it "updates official position fields" do
+      subject.add_official_position!("Brain surgeon", 3)
+      expect(subject).to be_official
+
+      subject.remove_official_position!
+
+      expect(subject).not_to be_official
+      expect(subject.official_position).to be_nil
+      expect(subject.official_level).to eq(0)
+    end
+  end
+
 end