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.
Nestable\NestableServiceProvider::class
Then add app.php Facade file again.
'Nestable' => Nestable\Facades\NestableService::class
Finally run the artisan command:
php artisan vendor:publish --provider="Nestable\NestableServiceProvider"
That's it!
Basic Usage with Eloquent
Suppose that the data came from a database as follows.
Category table:
| id | parent_id | name | slug |
|---|---|---|---|
| 1 | 0 | T-shirts | t-shirts |
| 2 | 1 | Red T-shirts | red-t-shirts |
| 3 | 1 | Black T-shirts | black-t-shirts |
| 4 | 0 | Sweaters | sweaters |
| 5 | 4 | Red Sweaters | red-sweaters |
| 6 | 4 | Blue Sweaters | blue-sweaters |
Example 1:
<?php
use Nestable\NestableTrait;
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
| name | Parameter | output |
|---|---|---|
| renderAsArray() | none | array |
| renderAsJson() | none | json |
| renderAsHtml() | none | html |
| renderAsDropdown() | none | dropdown |
| renderAsMultiple() | none | Listbox |
Usable methods with output methods
renderAsArray()
| name | paremeter | description |
|---|---|---|
| parent() | int | Get childs of the defined parent |
renderAsJson()
| name | paremeter | description |
|---|---|---|
| parent() | int | Get childs of the defined parent |
renderAsHtml()
| name | paremeter | description |
|---|---|---|
| parent() | int | Get childs of the defined parent |
| active() | callback/array/int | Selected item(s) for html output |
| ulAttr() | array/string | Add attribute to parent ul element |
| firstUlAttr() | array/string | Add attribute to parent ul element |
| route() | callback/array | Generate url by route name |
| customUrl() | string | Generate custom url |
renderAsDropdown()/renderAsMultiple()
| name | paremeter | description |
|---|---|---|
| parent() | int | Get childs of the defined parent |
| selected() | callback/array/int | Selected item(s) for dropdown |
| attr() | array | Dropdown/listbox attributes |
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.
| name | type | description |
|---|---|---|
| parent | string | Parent category column name |
| primary_key | string | Table primary key |
| generate_url | boolean | Generate the url for html output |
| childNode | string | Child node name |
| body | array | Array output (default) |
| html | array | Html output columns |
| dropdown | array | Dropdown/Listbox output |
body
The body variable should be an array and absolutely customizable.
Example:
<?php
'body' => [
'id',
'category_name',
'category_slug'
]
html
Configuration for html output.
| name | description |
|---|---|
| label | Label column name |
| href | Url column name |
Example:
<?php
'html' => [
'label' => 'name',
'href' => 'slug',
]
dropdown
Configuration for dropdown/listbox output.
| name | description |
|---|---|
| prefix | Label prefix |
| label | Label column name |
| value | Value column name |
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:
$result->renderAsArray();
Validators
It controls the structure of the data. They also made the rendering process with a second parameter control after they.
| name | Parameters |
|---|---|
| isValidForArray | boolean |
| isValidForJson | boolean |
| isValidForHtml | boolean |
| isValidForDropdown | boolean |
| isValidForMultiple | boolean |
Example 1:
<?php
Menu::make($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();
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