10-Apr-2023
.
Admin
In this blog, I will write how to create treeview structure in laravel application. You have need to make treeview structure for category or subcategory.
I simply create categories table and manage end level of child or parent child category with treeview structure in laravel. I use jquery for make tree view layout and child relationship with category model for hierarchical data. I also add form for create new category in tree view.
You can follow step by step for crate treeview structure as bellow.
Step 1 : Install laravel Fresh App
In this step, You can install laravel fresh app using bellow command.
composer create-project --prefer-dist laravel/laravel blog
Step 2 : Create Model and Table
In this step, we have create model and table migration, So bellow command used to create table migration.
php artisan make:migration create_category_table
After this You will find one file in following path "database/migration" and you have to put bellow code.
<?php
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateCategoryTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('categories', function (Blueprint $table) {
$table->increments('id');
$table->string('title');
$table->integer('parent_id');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::drop("categories");
}
}
Then after, Simply run bellow command
php artisan migrate
After create "categories" table you should create Category model for categories.
app/Category.php
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Category extends Model
{
public $fillable = ['title','parent_id'];
/**
* Get the index name for the model.
*
* @return string
*/
public function childs() {
return $this->hasMany('App\Category','parent_id','id') ;
}
}
Step 3 : Create Route
In this step you can create route for display view and ajax method and put bellow code.
routes/web.php
Route::get('category-tree-view',['uses'=>'CategoryController@manageCategory']);
Route::post('add-category',['as'=>'add.category','uses'=>'CategoryController@addCategory']);
Step 4 : Create Controller
In this step we have to create new controller as CategoryController and put bellow code.
app/Http/Controllers/CategoryController.php
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Http\Requests;
use App\Category;
class CategoryController extends Controller
{
/**
* Show the application dashboard.
*
* @return \Illuminate\Http\Response
*/
public function manageCategory()
{
$categories = Category::where('parent_id', '=', 0)->get();
$allCategories = Category::pluck('title','id')->all();
return view('categoryTreeview',compact('categories','allCategories'));
}
/**
* Show the application dashboard.
*
* @return \Illuminate\Http\Response
*/
public function addCategory(Request $request)
{
$this->validate($request, [
'title' => 'required',
]);
$input = $request->all();
$input['parent_id'] = empty($input['parent_id']) ? 0 : $input['parent_id'];
Category::create($input);
return back()->with('success', 'New Category added successfully.');
}
}
Step 5 : Create View File
In this step You can create laravel blade file for display view and put bellow code.
we have to create total two blade file as listed bellow:
1. categoryTreeview.blade.php
2. manageChild.blade.php
resources/views/categoryTreeview.blade.php
<!DOCTYPE html>
<html>
<head>
<title>Laravel Category Treeview Example - NiceSnippets.com</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css" />
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<link href="/css/treeview.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="panel panel-primary">
<div class="panel-heading">Manage Category TreeView</div>
<div class="panel-body">
<div class="row">
<div class="col-md-6">
<h3>Category List</h3>
<ul id="tree1">
@foreach($categories as $category)
<li>
{{ $category->title }}
@if(count($category->childs))
@include('manageChild',['childs' => $category->childs])
@endif
</li>
@endforeach
</ul>
</div>
<div class="col-md-6">
<h3>Add New Category</h3>
{!! Form::open(['route'=>'add.category']) !!}
@if ($message = Session::get('success'))
<div class="alert alert-success alert-block">
<button type="button" class="close" data-dismiss="alert">×</button>
<strong>{{ $message }}</strong>
</div>
@endif
<div class="form-group {{ $errors->has('title') ? 'has-error' : '' }}">
{!! Form::label('Title:') !!}
{!! Form::text('title', old('title'), ['class'=>'form-control', 'placeholder'=>'Enter Title']) !!}
<span class="text-danger">{{ $errors->first('title') }}</span>
</div>
<div class="form-group {{ $errors->has('parent_id') ? 'has-error' : '' }}">
{!! Form::label('Category:') !!}
{!! Form::select('parent_id',$allCategories, old('parent_id'), ['class'=>'form-control', 'placeholder'=>'Select Category']) !!}
<span class="text-danger">{{ $errors->first('parent_id') }}</span>
</div>
<div class="form-group">
<button class="btn btn-success">Add New</button>
</div>
{!! Form::close() !!}
</div>
</div>
</div>
</div>
</div>
</div>
<script src="/js/treeview.js"></script>
</body>
</html>
resources/views/manageChild.blade.php
<ul>
@foreach($childs as $child)
<li>
{{ $child->title }}
@if(count($child->childs))
@include('manageChild',['childs' => $child->childs])
@endif
</li>
@endforeach
</ul>
Step 6 : Add CSS and JS File
In this step you can add css and js file for treeview design. I will simply use bootsnip css and js code.
public/css/treeview.css
.tree, .tree ul {
margin:0;
padding:0;
list-style:none
}
.tree ul {
margin-left:1em;
position:relative
}
.tree ul ul {
margin-left:.5em
}
.tree ul:before {
content:"";
display:block;
width:0;
position:absolute;
top:0;
bottom:0;
left:0;
border-left:1px solid
}
.tree li {
margin:0;
padding:0 1em;
line-height:2em;
color:#369;
font-weight:700;
position:relative
}
.tree ul li:before {
content:"";
display:block;
width:10px;
height:0;
border-top:1px solid;
margin-top:-1px;
position:absolute;
top:1em;
left:0
}
.tree ul li:last-child:before {
background:#fff;
height:auto;
top:1em;
bottom:0
}
.indicator {
margin-right:5px;
}
.tree li a {
text-decoration: none;
color:#369;
}
.tree li button, .tree li button:active, .tree li button:focus {
text-decoration: none;
color:#369;
border:none;
background:transparent;
margin:0px 0px 0px 0px;
padding:0px 0px 0px 0px;
outline: 0;
}
public/css/treeview.js
$.fn.extend({
treed: function (o) {
var openedClass = 'glyphicon-minus-sign';
var closedClass = 'glyphicon-plus-sign';
if (typeof o != 'undefined'){
if (typeof o.openedClass != 'undefined'){
openedClass = o.openedClass;
}
if (typeof o.closedClass != 'undefined'){
closedClass = o.closedClass;
}
};
/* initialize each of the top levels */
var tree = $(this);
tree.addClass("tree");
tree.find('li').has("ul").each(function () {
var branch = $(this);
branch.prepend("");
branch.addClass('branch');
branch.on('click', function (e) {
if (this == e.target) {
var icon = $(this).children('i:first');
icon.toggleClass(openedClass + " " + closedClass);
$(this).children().children().toggle();
}
})
branch.children().children().toggle();
});
/* fire event from the dynamically added icon */
tree.find('.branch .indicator').each(function(){
$(this).on('click', function () {
$(this).closest('li').click();
});
});
/* fire event to open branch if the li contains an anchor instead of text */
tree.find('.branch>a').each(function () {
$(this).on('click', function (e) {
$(this).closest('li').click();
e.preventDefault();
});
});
/* fire event to open branch if the li contains a button instead of text */
tree.find('.branch>button').each(function () {
$(this).on('click', function (e) {
$(this).closest('li').click();
e.preventDefault();
});
});
}
});
/* Initialization of treeviews */
$('#tree1').treed();
Ok, now you are ready to run and check your application.
It will help you...
#Laravel 6
#Laravel
#Laravel 7
