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Yii2 Nested Sets

Yii2 Nested Sets Laravel Package

creocoder/yii2-nested-sets

Yii2 Nested Sets Behavior implementing the Modified Preorder Tree Traversal algorithm for hierarchical data. Adds ActiveRecord behavior and query helpers for inserting, moving, and deleting nodes, with optional multi-tree support via a tree attribute.

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creocoder/yii2-nested-sets provides a modern Nested Sets behavior for Yii 2 ActiveRecord, implementing the Modified Preorder Tree Traversal algorithm to manage hierarchical data efficiently.

Define lft, rgt, and depth (optionally tree for multi-tree) columns, attach NestedSetsBehavior to your model, and use a custom query class for tree-aware querying and updates.

  • Efficient reads for descendants/ancestors via lft/rgt ranges
  • Works with Yii 2 ActiveRecord behaviors and transactions
  • Supports single-tree and multiple-tree modes (treeAttribute)
  • Simple migration schema (lft, rgt, depth, optional tree)
  • Integrates cleanly with a dedicated ActiveQuery class
Frequently asked questions about Yii2 Nested Sets
Can I use creocoder/yii2-nested-sets in Laravel for hierarchical data like categories or org charts?
No, this package is designed for Yii2 and won’t work with Laravel’s Eloquent ORM. Laravel uses a different ActiveRecord implementation and lacks Yii2’s Behavior system, making direct integration impossible without major refactoring.
What Laravel alternatives exist for Nested Set patterns (Modified Preorder Tree Traversal)?
For Laravel, consider `laravel-nestedset` (abandoned but functional) or build a custom solution using Eloquent accessors/mutators. Alternatives like Closure Tables or Materialized Path may also fit better for your use case.
How do I migrate from Yii2’s Nested Sets to Laravel?
Replace the package with a Laravel-native solution like `laravel-nestedset` or implement a custom Nested Set using Eloquent. Use Laravel migrations to add `lft`/`rgt` columns, then write data migration scripts to populate these values.
Will this package work with Laravel 10+ or newer versions?
No, this package is tied to Yii2 and won’t integrate with Laravel’s Eloquent. Laravel’s ORM and Query Builder are fundamentally different, so compatibility is impossible without rewriting core logic.
Are there performance concerns with manually implementing Nested Sets in Laravel?
Yes, custom implementations may introduce inefficiencies, especially for deep hierarchies or frequent writes. Benchmark your solution against Laravel-native alternatives like Closure Tables, which often perform better for write-heavy workflows.
Can I use this package alongside Laravel’s Eloquent for hybrid hierarchies?
No, the package relies on Yii2’s Behavior system, which Laravel doesn’t support. Any attempt to mix them would require a proxy layer, increasing maintenance burden and risking runtime errors.
What’s the best approach for read-heavy vs. write-heavy hierarchies in Laravel?
For read-heavy hierarchies (e.g., displaying org charts), Nested Sets can work well in Laravel if implemented carefully. For write-heavy cases (e.g., frequent reordering), consider Closure Tables or Materialized Path for better performance.
Does this package support multiple trees (e.g., separate category hierarchies)?
The Yii2 package supports multiple trees via a `tree` column, but this feature won’t translate to Laravel. You’d need to implement it manually in Eloquent using scopes or custom queries.
Are there Laravel packages for hierarchical data that handle soft deletes or auditing?
Yes, packages like `spatie/laravel-activitylog` can complement hierarchical data solutions. For soft deletes, use Eloquent’s built-in `SoftDeletes` trait alongside your chosen hierarchy pattern (Nested Set, Closure Table, etc.).
What’s the maintenance risk of using this Yii2 package in a Laravel project?
High. The package lacks Laravel-specific updates, and its reliance on Yii2’s Behavior system means no community support or future compatibility. Custom implementations or Laravel-native packages are far more sustainable long-term.
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