Laravel Kendo Grid Parser

Takes a Kendo Angular Grid state and applies all its filters to a Laravel query builder instance. Works with any of these query builders out of the box:

• \Illuminate\Database\Query\Builder::class
• \Illuminate\Database\Query\Builder::class
• \Tinderbox\ClickhouseBuilder\Integrations\Laravel\Builder::class (https://github.com/the-tinderbox/ClickhouseBuilder)

Tested with @progress/kendo-angular-grid v3.X.X and Laravel 5.6 and up.

Instalation

composer require elnelsonperez/kendo-grid-parser

The package will be auto-discovered by Laravel 5.5+

Usage

Example grid state as JSON

{
  "filter": {
    "filters": [
      {
        "field": "name",
        "operator": "contains",
        "value": "John"
      }
    ],
    "logic": "and"
  },
  "group": [],
  "skip": 0,
  "sort": [
    {
      "field": "user_id",
      "dir": "asc"
    }
  ],
  "take": 50
}

This would be sent from the client and into the controller below.

Example Controller

    public function list(Request $request, KendoGridService $service)
    {
        $valid = $this->validate($request, [
            'skip'   => 'numeric|nullable',
            'take'   => 'numeric|nullable',
            'sort'   => 'array|nullable',
            'filter' => 'array|nullable'
        ]);

        // Base query. It's convenient to wrap the inner query before applying any grid filters
        $query = DB::query()->fromSub(
            User::selectRaw('users.id user_id, users.name, addresses.address')
                ->leftJoin('addresses', 'addresses.user_id', '=','users.id'), 'T'
        );

        $result_query = $service->execute(
            // Grid State
            $valid,
            // Grid columns and types (string, number, date, or boolean)
            [
                'user_id'                           => 'number',
                'name'                              => 'string',
                'address'                           => 'string',
            ],
            // The query builder instance to apply the filters to. 
            // The service detects the query builder instance class and chooses which adapter to use to build the resulting
            // query builder based on the packages configuration
            $query
        );

        return response([
            'data'  => $result_query->get(),
            'total' => $result_query->count()
        ]);
    }

The returned query builder instance would have all the filters received applied to it, but you can continue using it as you please.

Configuration

You can publish the packages configuration to customize/extend the implementations used by doing

php artisan vendor:publish --provider="ElNelsonPerez\KendoGridParser\KendoGridParserServiceProvider"

Further configuration options could be provided upon request.

Motivation

I pulled this code from another project to reuse between projects as I deal with Kendo Grid and Laravel often enough, and figured it would be useful to someone else.