init: add code

migrations/0003_post_creation_date.sql

@@ -0,0 +1,18 @@
+-- RedefineTables
+PRAGMA defer_foreign_keys=ON;
+PRAGMA foreign_keys=OFF;
+CREATE TABLE "new_Post" (
+    "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    "title" TEXT NOT NULL,
+    "content" TEXT NOT NULL,
+    "userId" INTEGER NOT NULL,
+    "parentId" INTEGER,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT "Post_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User" ("id") ON DELETE RESTRICT ON UPDATE CASCADE,
+    CONSTRAINT "Post_parentId_fkey" FOREIGN KEY ("parentId") REFERENCES "Post" ("id") ON DELETE SET NULL ON UPDATE CASCADE
+);
+INSERT INTO "new_Post" ("content", "id", "parentId", "title", "userId") SELECT "content", "id", "parentId", "title", "userId" FROM "Post";
+DROP TABLE "Post";
+ALTER TABLE "new_Post" RENAME TO "Post";
+PRAGMA foreign_keys=ON;
+PRAGMA defer_foreign_keys=OFF;