Create ExerciseComment database table

prisma/migrations/20221006161259_create_discussions_table/migration.sql

@@ -0,0 +1,22 @@
+-- CreateTable
+CREATE TABLE "Discussion" (
+    "id" SERIAL NOT NULL,
+    "createdAt" TIMESTAMPTZ(6) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMPTZ(6) NOT NULL,
+    "authorId" INTEGER NOT NULL,
+    "exerciseId" INTEGER NOT NULL,
+    "userPic" TEXT NOT NULL,
+    "content" TEXT NOT NULL,
+    "parentId" INTEGER,
+
+    CONSTRAINT "Discussion_pkey" PRIMARY KEY ("id")
+);
+
+-- AddForeignKey
+ALTER TABLE "Discussion" ADD CONSTRAINT "Discussion_authorId_fkey" FOREIGN KEY ("authorId") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "Discussion" ADD CONSTRAINT "Discussion_exerciseId_fkey" FOREIGN KEY ("exerciseId") REFERENCES "exercises"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "Discussion" ADD CONSTRAINT "Discussion_parentId_fkey" FOREIGN KEY ("parentId") REFERENCES "Discussion"("id") ON DELETE SET NULL ON UPDATE CASCADE;

prisma/migrations/20221006161545_create_discussions_table2/migration.sql

@@ -0,0 +1,2 @@
+-- AlterTable
+ALTER TABLE "Discussion" ALTER COLUMN "userPic" DROP NOT NULL;

prisma/migrations/20221006163340_create_discussions_table3/migration.sql

@@ -0,0 +1,5 @@
+-- DropForeignKey
+ALTER TABLE "Discussion" DROP CONSTRAINT "Discussion_authorId_fkey";
+
+-- AddForeignKey
+ALTER TABLE "Discussion" ADD CONSTRAINT "Discussion_authorId_fkey" FOREIGN KEY ("authorId") REFERENCES "users"("id") ON DELETE SET NULL ON UPDATE CASCADE;

prisma/migrations/20221014185321_exercise_comments/migration.sql

@@ -0,0 +1,40 @@
+/*
+  Warnings:
+
+  - You are about to drop the `Discussion` table. If the table is not empty, all the data it contains will be lost.
+
+*/
+-- DropForeignKey
+ALTER TABLE "Discussion" DROP CONSTRAINT "Discussion_authorId_fkey";
+
+-- DropForeignKey
+ALTER TABLE "Discussion" DROP CONSTRAINT "Discussion_exerciseId_fkey";
+
+-- DropForeignKey
+ALTER TABLE "Discussion" DROP CONSTRAINT "Discussion_parentId_fkey";
+
+-- DropTable
+DROP TABLE "Discussion";
+
+-- CreateTable
+CREATE TABLE "ExerciseComments" (
+    "id" SERIAL NOT NULL,
+    "createdAt" TIMESTAMPTZ(6) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMPTZ(6) NOT NULL,
+    "authorId" INTEGER NOT NULL,
+    "exerciseId" INTEGER NOT NULL,
+    "userPic" TEXT,
+    "content" TEXT NOT NULL,
+    "parentId" INTEGER,
+
+    CONSTRAINT "ExerciseComments_pkey" PRIMARY KEY ("id")
+);
+
+-- AddForeignKey
+ALTER TABLE "ExerciseComments" ADD CONSTRAINT "ExerciseComments_authorId_fkey" FOREIGN KEY ("authorId") REFERENCES "users"("id") ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "ExerciseComments" ADD CONSTRAINT "ExerciseComments_exerciseId_fkey" FOREIGN KEY ("exerciseId") REFERENCES "exercises"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "ExerciseComments" ADD CONSTRAINT "ExerciseComments_parentId_fkey" FOREIGN KEY ("parentId") REFERENCES "ExerciseComments"("id") ON DELETE SET NULL ON UPDATE CASCADE;

prisma/schema.prisma

@@ -156,6 +156,7 @@ model User {
   submissionsReviewed       Submission[]         @relation("userReviewedSubmissions")
   submissions               Submission[]         @relation("userSubmissions")
   userLessons               UserLesson[]
+  exerciseComments          ExerciseComments[]
 
   @@map("users")
 }
@@ -177,22 +178,23 @@ model Module {
 }
 
 model Exercise {
-  id          Int                  @id @default(autoincrement())
-  createdAt   DateTime             @default(now()) @db.Timestamptz(6)
-  updatedAt   DateTime             @updatedAt @db.Timestamptz(6)
-  authorId    Int
-  moduleId    Int
-  description String
-  answer      String
-  testStr     String?
-  explanation String?
-  flagReason  String?
-  flaggedAt   DateTime?
-  flaggedById Int?
-  author      User                 @relation(fields: [authorId], references: [id], onDelete: Cascade)
-  flaggedBy   User?                @relation("flaggedExercises", fields: [flaggedById], references: [id])
-  module      Module               @relation(fields: [moduleId], references: [id], onDelete: Cascade)
-  submissions ExerciseSubmission[]
+  id               Int                  @id @default(autoincrement())
+  createdAt        DateTime             @default(now()) @db.Timestamptz(6)
+  updatedAt        DateTime             @updatedAt @db.Timestamptz(6)
+  authorId         Int
+  moduleId         Int
+  description      String
+  answer           String
+  testStr          String?
+  explanation      String?
+  flagReason       String?
+  flaggedAt        DateTime?
+  flaggedById      Int?
+  author           User                 @relation(fields: [authorId], references: [id], onDelete: Cascade)
+  flaggedBy        User?                @relation("flaggedExercises", fields: [flaggedById], references: [id])
+  module           Module               @relation(fields: [moduleId], references: [id], onDelete: Cascade)
+  submissions      ExerciseSubmission[]
+  exerciseComments ExerciseComments[]
 
   @@map("exercises")
 }
@@ -207,3 +209,19 @@ model ExerciseSubmission {
 
   @@map("exerciseSubmissions")
 }
+
+model ExerciseComments {
+  id         Int                @id @default(autoincrement())
+  createdAt  DateTime           @default(now()) @db.Timestamptz(6)
+  updatedAt  DateTime           @updatedAt @db.Timestamptz(6)
+  authorId   Int
+  exerciseId Int
+  userPic    String?
+  content    String
+  parentId   Int?
+  exercise   Exercise           @relation(fields: [exerciseId], references: [id], onDelete: Cascade)
+  author     User               @relation(fields: [authorId], references: [id], onDelete: SetNull)
+  parent     ExerciseComments?  @relation("ExerciseCommentReplies", fields: [parentId], references: [id])
+  replies    ExerciseComments[] @relation("ExerciseCommentReplies")
+
+}