Examples

Here are some examples of entity relationship diagrams (ERDs) you can create in Eraser:

Chat App

users [icon: user, color: blue] {
    id string pk
    displayName string
    team_role string
    teams string
}

teams [icon: users, color: blue] {
    id string pk
    name string
}

workspaces [icon: home] {
    id string
    createdAt timestamp
    folderId string
    teamId string
}

folders [icon: folder] {
    id string
    name string
}

chat [icon: message-circle, color: green] {
    duration number
    startedAt timestamp
    endedAt timestamp
    workspaceId string
}

invite [icon: mail, color: green] {
    inviteId string
    type string
    workspaceId string
    inviterId string
}

users.teams <> teams.id
workspaces.folderId > folders.id
workspaces.teamId > teams.id
chat.workspaceId > workspaces.id
invite.workspaceId > workspaces.id
invite.inviterId > users.id

Open in Eraser to duplicate.

Calendar Booking App

User [icon: user] {
  id Int pk
  username String
  email String
  avatar String
  createdDate DateTime
}

Booking [icon: clock] {
  id Int pk
  userId Int
  title String
  startTime DateTime
  endTime DateTime
  location String
  eventTypeId Int
  destinationCalendarId Int
}

EventType [icon: list] {
  id Int pk
  userId Int
  teamId Int
  hidden Boolean
  length Int
}

ApiKey [icon: key]{
  id String pk
  userId Int
  appId String
  hashedKey String
}

App [icon: grid] {
  slug String
  dirName String
  keys Json
  createdAt DateTime
}

Webhook [icon: link] {
  id String pk
  userId Int
  appId String
  active Boolean
}

DestinationCalender [icon: calendar] {
  id Int pk
  userId Int
  integration String
  eventTypeId Int
}

// Booking.eventtType < EventType.id
Webhook.appId > App.slug
Webhook.userId > User.id
// Webhook.eventTypeId > EventType.id
App.slug > ApiKey.appId
User.id < Booking.userId
EventType.userId <> User.id
User.id > ApiKey.userId
DestinationCalender.id > Booking.destinationCalendarId
DestinationCalender.userId < User.id
DestinationCalender.eventTypeId < EventType.id

Open in Eraser to duplicate.

Form Builder App

User [icon: user] {
  id Int
  firstname String
  lastname String
  email String
  emailVerified DateTime
}

Form [icon: check-square] {
  id String
  ownerId Int
  name String
  formType FormType
  createdAt DateTime
}

Pipeline [icon: filter] {
  id String
  name String
  formId String
  events PipelineEvent
  createdAt DateTime
}

SessionEvent [icon: zap]{
  id String
  submissionSessionId String
  type String
  createdAt DateTime
}

SubmissionSession [icon: clock]{
  id String
  formId String
  createdAt DateTime
}

NoCodeForm [icon: check-square] {
  id String
  published Boolean
  closed Boolean
  formId String
}

User.id < Form.ownerId
Form.id < Pipeline.formId
Form.id < SubmissionSession.formId
Form.id < NoCodeForm.formId
SubmissionSession.id < SessionEvent.submissionSessionId

Open in Eraser to duplicate.