Laravel 5 Nestable

Laravel Nestable to work with recursive logic. Category level there is no limit but this may vary depending on your server performance. Allow the 100000 recursion process execution since PHP 5.2. More info

Install

composer require atayahmet/laravel-nestable

Then

Add to app.php the Service Provider file.

NestableNestableServiceProvider::class

Then add app.php Facade file again.

'Nestable' => NestableFacadesNestableService::class

Finally run the artisan command:

php artisan vendor:publish --provider="NestableNestableServiceProvider"

That's it!

Basic Usage with Eloquent

Suppose that the data came from a database as follows.

Category table:

Example 1:

<?php use NestableNestableTrait; class Category extends Eloquent { use NestableTrait; protected $parent = 'parent_id'; }

Note: $parent variable refers to the parent category (Default parent_id)

<?php $categories = Category::nested()->get();

Query result:

<?php array:6 [ 0 => array:5 [ "id" => 1 "name" => "T-shirts" "slug" => "t-shirts" "child" => array:2 [ 0 => array:5 [ "id" => 2 "name" => "Red T-shirts" "slug" => "red-t-shirts" "child" => [] "parent_id" => 1 ] 1 => array:5 [ "id" => 3 "name" => "Black T-shirts" "slug" => "black-t-shirts" "child" => [] "parent_id" => 1 ] ] "parent_id" => 0 ] 1 => array:5 [ "id" => 4 "name" => "Sweaters" "slug" => "sweaters" "child" => array:2 [ 0 => array:5 [ "id" => 5 "name" => "Red Sweaters" "slug" => "red-sweaters" "child" => [] "parent_id" => 4 ] 1 => array:5 [ "id" => 6 "name" => "Blue Sweaters" "slug" => "blue-sweaters" "child" => [] "parent_id" => 4 ] ] "parent_id" => 0 ] ]

For html tree output:

<?php Category::renderAsHtml();

Output:

<ul> <li><a href="">T-shirts <ul> <li><a href="red-t-shirt">Red T-shirt</a></li> <li><a href="black-t-shirts">Black T-shirts</a></li> </ul> </li> <li><a href="">Sweaters <ul> <li><a href="red-sweaters">Red Sweaters</a></li> <li><a href="blue-sweaters">Blue Sweaters</a></li> </ul> </li> </ul>

For dropdown output:

<?php Category::attr(['name' => 'categories']) ->selected(2) ->renderAsDropdown();

Output:

<select name="categories"> <option value="1">T-shirts</option> <option value="2" selected="selected"> Red T-shirts</option> <option value="3"> Black T-shirts</option> <option value="4">Sweaters</option> <option value="5"> Red Sweaters</option> <option value="6"> Blue Sweaters</option> </select>

Selected for multiple list box:

->selected([1,2,3])

Output methods

Usable methods with output methods

renderAsArray()

renderAsJson()

renderAsHtml()

renderAsDropdown()/renderAsMultiple()

parent()

Get childs of the defined parent.

<?php Category::parent(2)->renderAsArray();

Note: This methods usable all with output methods

active()

Selected item(s) for html output.

Example 1:

<?php Menu::active('t-shirts')->renderAsHtml();

Example 2:

<?php Menu::active('t-shirts', 'black-t-shirts')->renderAsHtml();

Example 3:

<?php Menu::active(['t-shirts', 'black-t-shirts'])->renderAsHtml();

Example 4:

<?php Menu::active(function($li, $href, $label) { $li->addAttr('class', 'active')->addAttr('data-label', $label); })->renderAsHtml();

Example 5:

<?php Menu::active(function($li, $href, $label) { $li->addAttr(['class' => 'active', 'data-label' => $label]); })->renderAsHtml();

firstUlAttr()

Add attribute to first ul element

Example 1:

<?php Menu::firstUlAttr('class', 'first-ul')->renderAsHtml();

Example 2:

<?php Menu::firstUlAttr(['class' => 'first-ul'])->renderAsHtml();

ulAttr()

Add attribute to parent ul element

Example 1:

<?php Menu::ulAttr('class', 'nav-bar')->renderAsHtml();

Example 2:

<?php Menu::ulAttr(['t-shirts' => 'black-t-shirts'])->renderAsHtml();

Example 3:

<?php Menu::ulAttr(function($ul, $parent_id) { if($parent_id == 10) { $ul->ulAttr('class', 'nav-bar'); } })->renderAsHtml();

route()

Generate url by route name

Example 1:

<?php Menu::route(['product' => 'slug'])->renderAsHtml();

Note: product refer to route name and slug refer to paremeter name.

<?php Route::get('product/{slug}', 'ProductController@show');

Example 2:

<?php Menu::route(function($href, $label, $parent) { return URL::to($href); })->renderAsHtml();

customUrl()

Generate custom url with slug

Example 1:

<?php Menu::customUrl('product/detail/{slug}')->renderAsHtml();

Example 1:

<?php Menu::customUrl('product/{slug}/detail')->renderAsHtml();

Note: slug keyword belongs to html > href in config file.

selected()

Selected item(s) for dropdown.

Example 1:

<?php Category::selected(1)->renderAsDropdown();

Example 2:

<?php Category::selected(1,5)->renderAsMultiple();

Example 3:

<?php Category::selected([1,3])->renderAsMultiple();

Example 4:

<?php Category::selected(function($option, $value, $label) { $option->addAttr('selected', 'true'); $option->addAttr(['data-item' => $label]); })->renderAsMultiple();

attr()

Dropdown/listbox attributes.

<?php Category::attr(['name' => 'categories', 'class' => 'red'])->renderAsDropdown();

Configuration

The above examples were performed with default settings. Config variables in config/nestable.php file.

body

The body variable should be an array and absolutely customizable.

Example:

<?php 'body' => [ 'id', 'category_name', 'category_slug' ]

html

Configuration for html output.

Example:

<?php 'html' => [ 'label' => 'name', 'href' => 'slug', ]

dropdown

Configuration for dropdown/listbox output.

Example:

<?php 'dropdown' => [ 'prefix' => '-', 'label' => 'name', 'value' => 'id' ]

Using Independent Models

Include the Nestable facade.

<?php use Nestable; $result = Nestable::make([ [ 'id' => 1, 'parent_id' => 0, 'name' => 'T-shirts', 'slug' => 't-shirts' ], [ 'id' => 2, 'parent_id' => 1, 'name' => 'Red T-shirts', 'slug' => 'red-t-shirts' ], [ 'id' => 3, 'parent_id' => 1, 'name' => 'Black T-shirts', 'slug' => 'black-t-shirts' ] // and more... ]);

For array output:

$result->renderAsArray();

Validators

It controls the structure of the data. They also made the rendering process with a second parameter control after they.

Example 1:

<?php Menu::make($categories)->isValidForHtml(); // return true or false

Example 2:

<?php Menu::make($categories)->isValidForHtml(true); // return html string if data valid

Macros

<?php Nestable::macro('helloWorld', function($nest, $categories) { return $nest->make($categories)->active('sweater')->route(['tests' => 'slug'])->renderAsHtml(); });

Call the above macro:

<?php $categories = [ [ 'id' => 1, 'parent_id' => 0, 'name' => 'T-shirt', 'slug' => 'T-shirt' ], [ 'id' => 2, 'parent_id' => 0, 'name' => 'Sweater', 'slug' => 'sweater' ] ]; Nestable::helloWorld($categories);

Helper

<?php nestable($data)->renderAsHtml();

<?php nestable()->make($data)->renderAsHtml();

<?php nestable()->macro('helloWorld', function() { return 'Hello Laravel'; }); // run nestable()->helloWorld();