Changes in iknow-api/Services/Implementations/EnrollmentService.cs [002cf5f:1b20b22]

File:

• iknow-api/Services/Implementations/EnrollmentService.cs (modified) (3 diffs)

iknow-api/Services/Implementations/EnrollmentService.cs

@@ -3 +3 @@
 using iknow_api.Models;
 using Microsoft.EntityFrameworkCore;
-using Npgsql;
 
 namespace iknow_api.Services
@@ -221 +220 @@
                 };
             }
-            catch (DbUpdateException ex) when (IsUniqueViolation(ex))
-            {
-                // Two enrolments for the same semester sent at the same time both
-                // pass the check above, because each transaction reads the state
-                // from before the other one wrote. UNIQUE (user_id, semester_id)
-                // is what actually settles it, so the loser gets the same
-                // sentence as if the check had caught it.
-                await transaction.RollbackAsync();
-                return Fail("You are already enrolled in that semester.");
-            }
             catch
             {
@@ -237 +226 @@
             }
         }
-
-        /// <summary>23505 is unique_violation.</summary>
-        private static bool IsUniqueViolation(DbUpdateException ex) =>
-            ex.InnerException is PostgresException { SqlState: "23505" };
 
         private static EnrollSemesterResultDto Fail(string message) =>