- How do I install TreeWalker in a Laravel project?
- Run `composer require lukascivil/treewalker` in your project root. The package requires PHP 8.1+, which aligns with Laravel 9+ and 10+. No additional Laravel-specific setup is needed beyond autoloading.
- Can TreeWalker handle deeply nested Eloquent relationships?
- Yes, use `getDynamicallyValue()` and `setDynamicallyValue()` to access or modify deeply nested attributes in Eloquent models. For example, update a nested relationship like `$model->setDynamicallyValue('user.address.city', 'New York')`.
- What’s the difference between `getdiff()` with `false` vs. `true`?
- Passing `false` returns flat slash-delimited keys (e.g., `cafeina/ss`), while `true` returns nested structures. Choose based on whether you need a flattened or hierarchical diff for debugging or automated workflows.
- Will TreeWalker work with Laravel’s API resources or Form Request validation?
- Yes, use `getdiff()` to compare incoming request data against expected schemas or validate payloads. For example, compare a `FormRequest` payload against a default config structure to detect unauthorized changes.
- How does `walker()` handle circular references or malformed JSON?
- TreeWalker doesn’t validate input by default, so circular references or invalid JSON may cause errors. Wrap operations in a `try-catch` block or pre-validate data using Laravel’s `json_decode()` with `JSON_THROW_ON_ERROR`.
- Can I use TreeWalker to merge Laravel config files dynamically?
- Absolutely. Use `structMerge()` to combine environment-specific configs (e.g., `config/merge.php`) with defaults. The first argument takes precedence, which matches Laravel’s config precedence rules.
- Does TreeWalker support async operations or Laravel queues?
- No, TreeWalker is synchronous. For async use cases (e.g., bulk API updates), dispatch a Laravel job with `walker()` or `getdiff()` and process results in the queue worker.
- How do I cache diff results for performance?
- Cache diffs using Laravel’s `Cache::remember()`. For example, cache a config diff for 1 hour: `Cache::remember('config_diff', now()->addHours(1), fn() => $treeWalker->getdiff($oldConfig, $newConfig))`.
- Are there alternatives for diffing or merging in Laravel?
- For diffing, consider `spatie/array-to-xml` or `league/arrayobjects`. For merging, Laravel’s built-in `array_merge_recursive()` or `collect()->merge()` may suffice for simpler cases. TreeWalker excels in handling mixed formats (arrays/objects/JSON) and dynamic paths.
- How do I test TreeWalker with Laravel’s Eloquent models?
- Write unit tests using PHPUnit to verify dynamic key access. For example, test `getDynamicallyValue()` on a model with nested attributes: `$model->setAttribute('user.address', ['city' => 'Paris']); $this->assertEquals('Paris', $treeWalker->getDynamicallyValue($model, 'user.address.city'))`.