## These are examples from https://docs.amplify.aws/cli/graphql-transformer/connection

# 1 - Project has a single optional Team
type Project1 @model {
  id: ID!
  name: String
  team: Team1 @connection
}

type Team1 @model {
  id: ID!
  name: String!
}

# 2 - Project with explicit field for team’s id
type Project2 @model {
  id: ID!
  name: String
  teamID: ID!
  team: Team2 @connection(fields: ["teamID"])
}

type Team2 @model {
  id: ID!
  name: String!
}

# 3 - Post Comment - keyName reference key directive

type Post3 @model {
  id: ID!
  title: String!
  comments: [Comment3] @connection(keyName: "byPost3", fields: ["id"])
}

type Comment3 @model
  @key(name: "byPost3", fields: ["postID", "content"]) {
  id: ID!
  postID: ID!
  content: String!
}

# 4 - Post Comment bi-directional belongs to

type Post4 @model {
  id: ID!
  title: String!
  comments: [Comment4] @connection(keyName: "byPost4", fields: ["id"])
}

type Comment4 @model
  @key(name: "byPost4", fields: ["postID", "content"]) {
  id: ID!
  postID: ID!
  content: String!
  post: Post4 @connection(fields: ["postID"])
}

# 5 Many to Many

type Post5 @model {
  id: ID!
  title: String!
  editors: [PostEditor5] @connection(keyName: "byPost5", fields: ["id"])
}

# Create a join model
type PostEditor5
  @model
  @key(name: "byPost5", fields: ["postID", "editorID"])
  @key(name: "byEditor5", fields: ["editorID", "postID"]) {
  id: ID!
  postID: ID!
  editorID: ID!
  post: Post5! @connection(fields: ["postID"])
  editor: User5! @connection(fields: ["editorID"])
}

type User5 @model {
  id: ID!
  username: String!
  posts: [PostEditor5] @connection(keyName: "byEditor5", fields: ["id"])
}

# This is one of the default schemas provided when you run `amplify add api`
# > Do you have an annotated GraphQL schema? `No`
# > Choose a schema template: `One-to-many relationship (e.g., “Blogs” with “Posts” and “Comments”)`

# 6 - Blog Post Comment
type Blog6 @model {
  id: ID!
  name: String!
  posts: [Post6] @connection(keyName: "byBlog", fields: ["id"])
}

type Post6 @model @key(name: "byBlog", fields: ["blogID"]) {
  id: ID!
  title: String!
  blogID: ID!
  blog: Blog6 @connection(fields: ["blogID"])
  comments: [Comment6] @connection(keyName: "byPost", fields: ["id"])
}

type Comment6 @model @key(name: "byPost", fields: ["postID", "content"]) {
  id: ID!
  postID: ID!
  post: Post6 @connection(fields: ["postID"])
  content: String!
}