Files
formbricks/docs/development/technical-handbook/database-model.mdx

204 lines
8.5 KiB
Plaintext

---
title: "Database Model"
description: "Overview of the Formbricks database schema and relationships"
icon: "database"
---
Formbricks uses PostgreSQL as its primary database and [Prisma](https://www.prisma.io/) as the Object-Relational Mapping (ORM) tool. The database schema is designed to support multi-tenancy, survey management, and response collection while maintaining data isolation between organizations.
## Entity Relationship Diagram
The following diagram shows the core entities and their relationships in the Formbricks database:
```mermaid
erDiagram
Organization ||--o{ Project : "has many"
Organization ||--o{ Membership : "has many"
Organization ||--o{ Team : "has many"
Organization ||--o{ Invite : "sends"
Project ||--o{ Environment : "has two"
Project ||--o{ Language : "supports"
Project ||--o{ ProjectTeam : "has"
Environment ||--o{ Survey : "contains"
Environment ||--o{ Contact : "tracks"
Environment ||--o{ ActionClass : "defines"
Environment ||--o{ ApiKey : "has"
Environment ||--o{ Integration : "configures"
Survey ||--o{ Response : "receives"
Survey ||--o{ Display : "tracks"
Survey ||--o{ SurveyTrigger : "configured by"
Survey ||--o{ SurveyAttributeFilter : "filtered by"
Survey ||--o{ SurveyLanguage : "translated to"
Contact ||--o{ Response : "provides"
Contact ||--o{ Display : "sees"
Contact ||--o{ ContactAttribute : "has"
User ||--o{ Membership : "belongs to"
User ||--o{ Account : "has"
User ||--o{ TeamUser : "member of"
Team ||--o{ TeamUser : "includes"
Team ||--o{ ProjectTeam : "has access to"
Response ||--o{ ResponseNote : "has"
Response ||--o{ TagsOnResponses : "tagged with"
Tag ||--o{ TagsOnResponses : "applied to"
ActionClass ||--o{ SurveyTrigger : "triggers"
ContactAttributeKey ||--o{ ContactAttribute : "defines"
ContactAttributeKey ||--o{ SurveyAttributeFilter : "used in"
```
## Core Models
### Organization & Project Management
1. **Organization**
- Top-level entity for multi-tenancy
- Contains multiple projects and team members
- Manages billing and whitelabel settings
2. **Project**
- Groups related surveys and configurations
- Has two environments (production/development)
- Controls branding and display settings
3. **Environment**
- Isolates production and development resources
- Contains surveys, contacts, and actions
- Manages API keys and integrations
### Survey Management
1. **Survey**
- Central model for questionnaires
- Configurable with multiple questions and display rules
- Supports multiple languages and targeting filters
2. **Response**
- Records user answers to surveys
- Links to contact information when available
- Supports tagging and notes for analysis
3. **ActionClass**
- Defines triggering points for surveys
- Can be code-based or no-code configurations
- Links surveys to specific user actions
### User Management
1. **User**
- Represents system users (admins/team members)
- Manages authentication and preferences
- Can belong to multiple organizations
2. **Contact**
- Represents survey respondents
- Stores attributes for targeting
- Tracks survey displays and responses
3. **Team**
- Groups users within organizations
- Controls project access permissions
- Facilitates collaborative survey management
## Data Isolation
The database schema ensures proper data isolation through:
1. **Organization-level isolation**
- Each organization has its own projects
- Users can belong to multiple organizations
- Resources are scoped to organizations
2. **Environment-level isolation**
- Separate production and development environments
- Independent surveys, contacts, and actions
- Isolated API keys and integrations
3. **Project-level isolation**
- Project-specific configurations
- Separate language settings
- Team-based access control
## Schema Management
The database schema is managed through Prisma, which provides:
- Type-safe database client
- Automatic migration generation
- Schema versioning
- Data validation
- Query optimization
For detailed information about specific models and their properties, refer to the [schema.prisma](https://github.com/formbricks/formbricks/blob/main/packages/database/schema.prisma) file in the repository.
## PostgreSQL Database Tables
Formbricks stores all data in PostgreSQL tables. Here's a comprehensive list of all database tables and their purposes:
| Table Name | Description |
| --------------------- | ---------------------------------------------------------------------- |
| Account | Stores third-party authentication accounts (OAuth) and their tokens |
| ActionClass | Defines triggerable events that can launch surveys |
| ApiKey | Stores API authentication keys for environment-specific access |
| Contact | Records information about user that can receive and respond to surveys |
| ContactAttribute | Stores attribute values for contacts (e.g., role, company size) |
| ContactAttributeKey | Defines available attribute types for contacts |
| DataMigration | Tracks the status of database schema migrations |
| Display | Records when and to whom surveys were shown |
| Document | Stores processed survey responses for analysis |
| DocumentInsight | Links analyzed documents to derived insights |
| Environment | Manages production/development environments within projects |
| Insight | Contains analyzed patterns and information from responses |
| Integration | Stores configuration for third-party service integrations |
| Invite | Manages pending invitations to join organizations |
| Language | Defines supported languages for multi-lingual surveys |
| Membership | Links users to organizations with specific roles |
| Organization | Top-level container for projects and team management |
| Project | Groups related surveys and environments |
| ProjectTeam | Manages team access permissions to projects |
| Response | Stores survey responses and associated metadata |
| ResponseNote | Contains team member comments on survey responses |
| Segment | Defines groups of contacts based on attributes |
| ShortUrl | Maps shortened URLs to their full destinations |
| Survey | Stores survey configurations, questions, and display rules |
| SurveyAttributeFilter | Defines targeting rules for surveys based on contact attributes |
| SurveyFollowUp | Configures automated actions based on survey responses |
| SurveyLanguage | Links surveys to their supported languages |
| SurveyTrigger | Connects surveys to their triggering actions |
| Tag | Stores labels for categorizing responses |
| TagsOnResponses | Junction table linking tags to responses |
| Team | Groups users within organizations |
| TeamUser | Links users to teams with specific roles |
| User | Stores user account information and preferences |
| Webhook | Manages webhook endpoints for event notifications |
## Schema Reference
For detailed information about the database schema, including:
- Complete field definitions
- Relationships between tables
- Enums and custom types
- Field constraints and indices
- JSON field structures
Please refer to the [Prisma schema file](https://github.com/formbricks/formbricks/blob/main/packages/database/schema.prisma) in our GitHub repository.
The schema.prisma file contains extensive documentation comments for each model, making it the authoritative reference for the database structure.