diff --git a/.eslintrc.json b/.eslintrc.json
index 86999d9..1e5e448 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -1,12 +1,6 @@
 {
-  "extends": [
-    "next",
-    "next/core-web-vitals",
-    "plugin:prettier/recommended"
-  ],
-  "plugins": [
-    "prettier"
-  ],
+  "extends": ["next", "next/core-web-vitals", "plugin:prettier/recommended"],
+  "plugins": ["prettier"],
   "rules": {
     "prettier/prettier": [
       "error",
@@ -16,4 +10,4 @@
     ],
     "no-unused-vars": "error"
   }
-}
\ No newline at end of file
+}
diff --git a/package.json b/package.json
index 808528c..7ef9436 100644
--- a/package.json
+++ b/package.json
@@ -70,4 +70,4 @@
       "npx prisma format"
     ]
   }
-}
\ No newline at end of file
+}
diff --git a/prisma/migrations/20240928220618_init/migration.sql b/prisma/migrations/20240928220618_init/migration.sql
new file mode 100644
index 0000000..7f8ab45
--- /dev/null
+++ b/prisma/migrations/20240928220618_init/migration.sql
@@ -0,0 +1,34 @@
+/*
+  Warnings:
+
+  - You are about to drop the column `numberOfStudents` on the `Absence` table. All the data in the column will be lost.
+  - You are about to drop the column `subject` on the `Absence` table. All the data in the column will be lost.
+  - A unique constraint covering the columns `[authId]` on the table `User` will be added. If there are existing duplicate values, this will fail.
+  - Added the required column `subjectId` to the `Absence` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- AlterTable
+ALTER TABLE "Absence" DROP COLUMN "numberOfStudents",
+DROP COLUMN "subject",
+ADD COLUMN     "subjectId" INTEGER NOT NULL;
+
+-- AlterTable
+ALTER TABLE "User" ADD COLUMN     "numOfAbsences" INTEGER NOT NULL DEFAULT 10;
+
+-- DropEnum
+DROP TYPE "Subject";
+
+-- CreateTable
+CREATE TABLE "Subject" (
+    "id" SERIAL NOT NULL,
+    "name" TEXT NOT NULL,
+    "abbreviation" TEXT NOT NULL,
+
+    CONSTRAINT "Subject_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "User_authId_key" ON "User"("authId");
+
+-- AddForeignKey
+ALTER TABLE "Absence" ADD CONSTRAINT "Absence_subjectId_fkey" FOREIGN KEY ("subjectId") REFERENCES "Subject"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 8a24d98..5981628 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -39,7 +39,7 @@ model Location {
   id           Int       @id @default(autoincrement())
   name         String
   abbreviation String
-  absences     Absence[]
+  Absence      Absence[]
 }
 
 model MailingList {
@@ -52,7 +52,7 @@ model Subject {
   id           Int       @id @default(autoincrement())
   name         String
   abbreviation String
-  absences     Absence[]
+  Absence      Absence[]
 }
 
 enum Role {
diff --git a/prisma/seed/.snaplet/dataModel.json b/prisma/seed/.snaplet/dataModel.json
index b5db21d..e68835f 100644
--- a/prisma/seed/.snaplet/dataModel.json
+++ b/prisma/seed/.snaplet/dataModel.json
@@ -127,12 +127,8 @@
           "isRequired": true,
           "kind": "object",
           "relationName": "AbsenceToLocation",
-          "relationFromFields": [
-            "locationId"
-          ],
-          "relationToFields": [
-            "id"
-          ],
+          "relationFromFields": ["locationId"],
+          "relationToFields": ["id"],
           "isList": false,
           "isId": false,
           "isGenerated": false,
@@ -145,12 +141,8 @@
           "isRequired": true,
           "kind": "object",
           "relationName": "AbsenceToSubject",
-          "relationFromFields": [
-            "subjectId"
-          ],
-          "relationToFields": [
-            "id"
-          ],
+          "relationFromFields": ["subjectId"],
+          "relationToFields": ["id"],
           "isList": false,
           "isId": false,
           "isGenerated": false,
@@ -163,12 +155,8 @@
           "isRequired": true,
           "kind": "object",
           "relationName": "Absence_absentTeacherIdToUser",
-          "relationFromFields": [
-            "absentTeacherId"
-          ],
-          "relationToFields": [
-            "id"
-          ],
+          "relationFromFields": ["absentTeacherId"],
+          "relationToFields": ["id"],
           "isList": false,
           "isId": false,
           "isGenerated": false,
@@ -181,12 +169,8 @@
           "isRequired": false,
           "kind": "object",
           "relationName": "Absence_substituteTeacherIdToUser",
-          "relationFromFields": [
-            "substituteTeacherId"
-          ],
-          "relationToFields": [
-            "id"
-          ],
+          "relationFromFields": ["substituteTeacherId"],
+          "relationToFields": ["id"],
           "isList": false,
           "isId": false,
           "isGenerated": false,
@@ -197,9 +181,7 @@
       "uniqueConstraints": [
         {
           "name": "Absence_pkey",
-          "fields": [
-            "id"
-          ],
+          "fields": ["id"],
           "nullNotDistinct": false
         }
       ]
@@ -273,9 +255,7 @@
       "uniqueConstraints": [
         {
           "name": "Location_pkey",
-          "fields": [
-            "id"
-          ],
+          "fields": ["id"],
           "nullNotDistinct": false
         }
       ]
@@ -335,9 +315,7 @@
       "uniqueConstraints": [
         {
           "name": "MailingList_pkey",
-          "fields": [
-            "id"
-          ],
+          "fields": ["id"],
           "nullNotDistinct": false
         }
       ]
@@ -411,9 +389,7 @@
       "uniqueConstraints": [
         {
           "name": "Subject_pkey",
-          "fields": [
-            "id"
-          ],
+          "fields": ["id"],
           "nullNotDistinct": false
         }
       ]
@@ -571,23 +547,17 @@
       "uniqueConstraints": [
         {
           "name": "User_pkey",
-          "fields": [
-            "id"
-          ],
+          "fields": ["id"],
           "nullNotDistinct": false
         },
         {
           "name": "User_authId_key",
-          "fields": [
-            "authId"
-          ],
+          "fields": ["authId"],
           "nullNotDistinct": false
         },
         {
           "name": "User_email_key",
-          "fields": [
-            "email"
-          ],
+          "fields": ["email"],
           "nullNotDistinct": false
         }
       ]
@@ -620,4 +590,4 @@
       ]
     }
   }
-}
\ No newline at end of file
+}