How to Implement Dynamic Model Fields in a Multi-Tenant Django Application?

Multi-Tenant Django Dynamic Model Fields

To create dynamic model fields in a multi-tenant Django application, consider the following approaches:

1. Django-eav

This solution uses the Entity Attribute Value data model to attach dynamic fields to existing models. It offers simplicity, powerful functionality, and Django admin integration.

2. Hstore, JSON, or JSONB Fields

• HStoreField: A Django-built-in field supporting dynamic fields with key-value pairs. It's database-agnostic but may have performance drawbacks and only supports string values.
• JSONField (or JSONB): Similar to HStoreField, but supports various data types and potentially better performance for large dictionaries.

3. Django MongoDB

This approach allows fully dynamic models by leveraging a NoSQL Django adaptation like Django MongoDB. However, it may require adjustments to existing code and may not be 100% Django-compatible.

4. Django-mutant

This library implements dynamic Foreign Key and m2m fields using South hooks. By utilizing these hooks, one can achieve fully dynamic Django models with any relational database backend. However, it's important to ensure proper locking mechanisms to prevent database corruption during concurrent alterations.

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