feat: Create no_loan_update_exception in app_cont

app/controllers/application_controller.rb

@@ -3,20 +3,26 @@
 class ApplicationController < ActionController::API
   before_action :set_current_user
   rescue_from ActiveRecord::RecordNotFound, with: :record_not_found
-  rescue_from NoPuzzlesException, with: :no_puzzles
+  rescue_from NoPuzzlesFoundException, with: :no_puzzles_found
   rescue_from PuzzleNotAvailableException, with: :puzzle_not_available
+  rescue_from NoLoanUpdateException, with: :no_loan_update
 
   def record_not_found(exception)
     render json: ErrorSerializer.new(exception, 404).serializable_hash, status: :not_found # 404
   end
 
-  def no_puzzles
-    error = NoPuzzlesException.new("No puzzles found in this area.")
+  def no_puzzles_found
+    error = NoPuzzlesFoundException.new("No puzzles found in this area.")
     render json: ErrorSerializer.new(error, 404).serializable_hash, status: :not_found # 404
   end
 
   def puzzle_not_available
-    error = NoPuzzlesException.new("Puzzle is not available for loan.")
+    error = PuzzleNotAvailableException.new("Puzzle is not available for loan.")
+    render json: ErrorSerializer.new(error, 404).serializable_hash, status: :not_found # 404
+  end
+
+  def no_loan_update
+    error = NoLoanUpdateException.new("Unable to update loan.")
     render json: ErrorSerializer.new(error, 404).serializable_hash, status: :not_found # 404
   end
 
@@ -27,6 +33,6 @@ def set_current_user
 
 # Note to self: Saving this to remember process that lead me to final version:
 # def no_puzzles
-  # render status: :no_content, json: {} # 204
-  # render json: { error: "No puzzles found in this area." }, status: :not_found # 404
+#   render status: :no_content, json: {} # 204
+#   render json: { error: "No puzzles found in this area." }, status: :not_found # 404
 # end

app/exceptions/no_loan_update_exception.rb

@@ -0,0 +1,2 @@
+class NoLoanUpdateException < StandardError
+end