code guidelines

src/Yavsc/Controllers/Haircut/ColorsController.cs

@@ -9,7 +9,7 @@ namespace Yavsc.Controllers
 {
     public class ColorsController : Controller
     {
-        private ApplicationDbContext _context;
+        private readonly ApplicationDbContext _context;
 
         public ColorsController(ApplicationDbContext context)
         {

src/Yavsc/Controllers/Haircut/HairCutCommandController.cs

@@ -29,6 +29,7 @@ namespace Yavsc.Controllers
 
     public class HairCutCommandController : CommandController
     {
+        readonly PayPalSettings payPalSettings;
         public HairCutCommandController(ApplicationDbContext context,
           IOptions<PayPalSettings> payPalSettings,
           IOptions<GoogleAuthSettings> googleSettings,
@@ -44,7 +45,7 @@ namespace Yavsc.Controllers
         {
             this.payPalSettings = payPalSettings.Value;
         }
-        PayPalSettings payPalSettings;
+
         
         private async Task<HairCutQuery> GetQuery(long id)
         {

src/Yavsc/Controllers/Haircut/HairPrestationsController.cs

@@ -8,7 +8,7 @@ namespace Yavsc.Controllers
 {
     public class HairPrestationsController : Controller
     {
-        private ApplicationDbContext _context;
+        private readonly ApplicationDbContext _context;
 
         public HairPrestationsController(ApplicationDbContext context)
         {

src/Yavsc/Controllers/Haircut/HairTaintsController.cs

@@ -12,7 +12,7 @@ namespace Yavsc.Controllers
     [Authorize("AdministratorOnly")]
     public class HairTaintsController : Controller
     {
-        private ApplicationDbContext _context;
+        private readonly ApplicationDbContext _context;
 
         public HairTaintsController(ApplicationDbContext context)
         {