C#•17mo ago

❔ ERD Review

I'm working on an ERD for the FE mockups here: https://imgur.com/a/E3XJ0OU. It's a multi-tenant database where a tenant represents a company. Azure AD is used for authentication. Tenant - TenantId (primary key) - Name User - UserId (primary key) - TenantId (foreign key to Tenant table) - Email - Phone Event The Event table represents the different types of events for which notifications can be sent. It could be the different stages of an offer: Offer Filled, Offer Completed, Offer Cancelled, Offer Rejected, Offer Expired. - EventId (primary key) - EventName AlertTone - AlertToneId (primary key) - AlertToneName - AlertToneUrl UserEventNotification For each user, we can store their individual preferences for event notification types in the UserEventNotification table. This table also includes the user's chosen alert tone for each event type. The XEnabled column allows users to enable/disable notification types for specific events, but only for those events that were enabled by the administrator in the GlobalEventNotification table. - UserEventNotificationId (primary key) - UserId (foreign key to User table) - EventId (foreign key to Event table) - InAppNotificationEnabled (boolean, whether in-app notification is enabled for this user and event) - EmailNotificationEnabled (boolean, whether email notification is enabled for this user and event) - SmsNotificationEnabled (boolean, whether SMS notification is enabled for this user and event) - AlertToneId (foreign key to AlertTone table) GlobalEventNotification - GlobalEventNotificationId (primary key) - EventId (foreign key to Event table) - InAppNotificationEnabled - EmailNotificationEnabled - SmsNotificationEnabled

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2 Replies

Hulkstance•17mo ago

erDiagram
    User ||--o{ UserEventNotification : "has"
    Tenant ||--o{ User : "has"
    UserEventNotification ||--|{ Event : "for"
    UserEventNotification ||--o{ AlertTone : "uses"
    GlobalNotificationType ||--o{ Event : "for"
    
    User {
        string UserId
        string Email
        string Phone
        string TenantId
    }
    Tenant {
        string TenantId
        string Name
    }
    Event {
        string EventId
        string EventName
    }
    AlertTone {
        string AlertToneId
        string AlertToneName
        string AlertToneUrl
    }
    UserEventNotification {
        string UserEventNotificationId
        string UserId
        string EventId
        boolean InAppNotification
        boolean EmailNotification
        boolean SmsNotification
        string AlertToneId
    }
    GlobalNotificationType {
        string GlobalNotificationTypeId
        string EventId
        boolean InAppNotification
        boolean EmailNotification
        boolean SmsNotification
    }

erDiagram
    User ||--o{ UserEventNotification : "has"
    Tenant ||--o{ User : "has"
    UserEventNotification ||--|{ Event : "for"
    UserEventNotification ||--o{ AlertTone : "uses"
    GlobalNotificationType ||--o{ Event : "for"
    
    User {
        string UserId
        string Email
        string Phone
        string TenantId
    }
    Tenant {
        string TenantId
        string Name
    }
    Event {
        string EventId
        string EventName
    }
    AlertTone {
        string AlertToneId
        string AlertToneName
        string AlertToneUrl
    }
    UserEventNotification {
        string UserEventNotificationId
        string UserId
        string EventId
        boolean InAppNotification
        boolean EmailNotification
        boolean SmsNotification
        string AlertToneId
    }
    GlobalNotificationType {
        string GlobalNotificationTypeId
        string EventId
        boolean InAppNotification
        boolean EmailNotification
        boolean SmsNotification
    }

Accord•17mo ago

Looks like nothing has happened here. I will mark this as stale and this post will be archived until there is new activity.

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❔ ERD Review