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Welcome to the Posts 2 Posts plugin wiki! Let's get started.

Connection types:

1. Basic usage
2. Shortcodes
3. Reciprocal connections
4. Connection information
5. Duplicate connections and cardinality
6. Connection ordering
7. Posts 2 Users

Utilities:

• each_connected() - get connections for multiple posts in one query
• get_related() - get other posts connected to a certain post
• connect() - create connections programmatically
• get_p2p_id() - check if two posts are connected

Admin UI:

1. Admin box display
2. Custom admin boxes
3. Admin column display

Extensibility:

1. Widget and shortcode filters
2. Admin box filters

Reference:

• Data organization
• Query vars
• Capabilities
• Class diagrams

Misc:

• P2P-WPML - integration with WPML
• P2P-Core - core API for bundling with themes