Polymorphic Relationships in Join Fields in payload cms

Feature Overview: Polymorphic relationships allow fields to reference multiple content types. For example, an article can reference different collections like authors, tags, or related articles.

How It Helps for Articles:

• Flexible Data Modeling: Link an article to multiple authors, categories, or multimedia content.
• Dynamic Related Content: Show “related articles” or “recommended reads” based on references to other collections.
• Hierarchical Content: Create series or collections of articles with parent-child relationships.

Implementation Steps:

1. Add polymorphic join fields to the article schema

fields: [
  {
    name: "relatedContent",
    type: "relationship",
    relationTo: ["articles", "categories", "tags"],
    hasMany: true,
  },
];

1. Use these fields to connect articles to other content dynamically.
2. Fetch the relationships in the frontend to display linked content.

Real-World Use Case: A news portal can link articles to relevant tags, multimedia galleries, or even authors’ bios dynamically.