refactor(db): migrate interview preparation

Move durable user-owned interview preparation into an additive provider-aware migration. Preserve questions, answers, practice state, ordering, and application cascade semantics.
2026-08-30 18:58:55 +02:00
parent 934b35a1e0
commit a906916acc
10 changed files with 148 additions and 55 deletions
@@ -0,0 +1,70 @@
+using System;
+using JobTrackerApi.Data;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace JobTrackerApi.Migrations;
+
+/// <summary>
+/// Moves durable user-owned interview preparation into migration ownership without replacing
+/// questions, answers, research, or practice state.
+/// </summary>
+[DbContext(typeof(JobTrackerContext))]
+[Migration("20260830132000_AdoptInterviewPrepItemSchema")]
+public sealed class AdoptInterviewPrepItemSchema : Migration
+{
+    protected override void Up(MigrationBuilder migrationBuilder)
+    {
+        if (ActiveProvider.Contains("MySql", StringComparison.OrdinalIgnoreCase))
+        {
+            migrationBuilder.Sql("""
+                CREATE TABLE IF NOT EXISTS `InterviewPrepItems` (
+                    `Id` int NOT NULL AUTO_INCREMENT,
+                    `OwnerUserId` varchar(255) NOT NULL,
+                    `JobApplicationId` int NOT NULL,
+                    `Category` varchar(32) NOT NULL,
+                    `Title` varchar(500) NOT NULL,
+                    `Content` longtext NULL,
+                    `Source` varchar(16) NOT NULL,
+                    `IsPrepared` tinyint(1) NOT NULL,
+                    `SortOrder` int NOT NULL,
+                    `CreatedAtUtc` datetime(6) NOT NULL,
+                    `UpdatedAtUtc` datetime(6) NOT NULL,
+                    PRIMARY KEY (`Id`),
+                    CONSTRAINT `FK_InterviewPrepItems_JobApplications_JobApplicationId`
+                        FOREIGN KEY (`JobApplicationId`) REFERENCES `JobApplications` (`Id`) ON DELETE CASCADE
+                ) CHARACTER SET=utf8mb4;
+                CREATE INDEX IF NOT EXISTS `IX_InterviewPrepItems_Owner_Job_Sort`
+                    ON `InterviewPrepItems` (`OwnerUserId`, `JobApplicationId`, `SortOrder`);
+                """);
+            return;
+        }
+
+        migrationBuilder.Sql("""
+            CREATE TABLE IF NOT EXISTS "InterviewPrepItems" (
+                "Id" INTEGER NOT NULL CONSTRAINT "PK_InterviewPrepItems" PRIMARY KEY AUTOINCREMENT,
+                "OwnerUserId" TEXT NOT NULL,
+                "JobApplicationId" INTEGER NOT NULL,
+                "Category" TEXT NOT NULL,
+                "Title" TEXT NOT NULL,
+                "Content" TEXT NULL,
+                "Source" TEXT NOT NULL,
+                "IsPrepared" INTEGER NOT NULL,
+                "SortOrder" INTEGER NOT NULL,
+                "CreatedAtUtc" TEXT NOT NULL,
+                "UpdatedAtUtc" TEXT NOT NULL,
+                CONSTRAINT "FK_InterviewPrepItems_JobApplications_JobApplicationId"
+                    FOREIGN KEY ("JobApplicationId") REFERENCES "JobApplications" ("Id") ON DELETE CASCADE
+            );
+            CREATE INDEX IF NOT EXISTS "IX_InterviewPrepItems_Owner_Job_Sort"
+                ON "InterviewPrepItems" ("OwnerUserId", "JobApplicationId", "SortOrder");
+            """);
+    }
+
+    protected override void Down(MigrationBuilder migrationBuilder)
+    {
+        // Preserve durable user-authored preparation from pre-migration installations.
+    }
+}