Add messaging

prisma/schema.prisma

@@ -28,6 +28,7 @@ model Channel {
     community    Community @relation(fields: [communityId], references: [id], onDelete: Cascade)
     communityId  String
     creationDate DateTime  @default(now())
+    messages     Message[]
 }
 
 model Role {
@@ -55,6 +56,7 @@ model User {
     ownedCommunities Community[] @relation(name: "OwnerCommunityToUser")
     communities      Community[] @relation(name: "MembersCommunitiesToUsers")
     roles            Role[]      @relation(name: "UsersRolesToUsers")
+    messages         Message[]
 }
 
 model Session {
@@ -76,3 +78,15 @@ model Invite {
     creationDate     DateTime  @default(now())
     expirationDate   DateTime?
 }
+
+model Message {
+    id           String   @id @unique @default(uuid())
+    text         String
+    editHistory  String[] @default([])
+    edited       Boolean  @default(false)
+    owner        User     @relation(fields: [ownerId], references: [id], onDelete: Cascade)
+    ownerId      String
+    channel      Channel  @relation(fields: [channelId], references: [id], onDelete: Cascade)
+    channelId    String
+    creationDate DateTime @default(now())
+}