Added label filter example

Added support for request filters array keys "(?values[]=)"
Added test for request filter array values

src/Abstracts/Search.php

@@ -123,7 +123,11 @@ public function addRequestFilters( Request $request )
             if ( substr( $filterNameRaw, 0, strlen($this->requestFilterPrefix) ) === $this->requestFilterPrefix )
             {
                 $filterName = substr( $filterNameRaw, strlen($this->requestFilterPrefix) );
-                $this->addFilter( $filterName, $value );
+                if (is_array($value)) 
+                    foreach($value as $v)
+                        $this->addFilter( $filterName, $v );
+                else
+                    $this->addFilter( $filterName, $value );
             }
         }
     }

src/Database/migrations/0000_00_00_000000_create_example_model_table.php

@@ -11,7 +11,11 @@ public function up()
     {
         Schema::create('examplemodel', function (Blueprint $table) {
             $table->increments('id');
+
             $table->string('name');
+            $table->boolean('label_one')->default(false);
+            $table->boolean('label_two')->default(false);
+
             $table->timestamps();
         });
     }

src/Filters/ExampleModel/HasLabel.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace ModelSearch\Filters\ExampleModel;
+
+use ModelSearch\Contracts\Filter;
+use Illuminate\Database\Eloquent\Builder;
+
+
+class HasLabel implements Filter
+{
+    /**
+     * Apply a given search value to the builder instance.
+     *
+     * @param Builder $builder
+     * @param mixed $value
+     * @return Builder $builder
+     */
+    public static function apply(Builder $builder, $value)
+    {
+        return $builder->where( 'label_' . $value, true );
+    }
+}

tests/ModelSearchTest.php

@@ -59,6 +59,14 @@ protected function setUp()
             $exampleModel->name = 'Test';
             $exampleModel->save();
         }
+
+        foreach(range(1, 4) as $index) {
+            $exampleModel = new ExampleModel();
+            $exampleModel->name = 'Labels';
+            $exampleModel->label_one = true;
+            $exampleModel->label_two = true;
+            $exampleModel->save();
+        }
     }
 
     /** @test */
@@ -91,8 +99,6 @@ public function it_can_sort_models_with_a_special_filter()
         $search = new ModelSearch( ExampleModel::class );
         $search->addFilter('SortBy', 'id');
         $result = $search->result();
-
-        $this->assertEquals($result->count(), 10);
 
         $predictedIndex = 1;
         foreach( $result as $exampleModel ) {
@@ -107,10 +113,8 @@ public function it_can_sort_models_with_a_special_filter_dec()
         $search = new ModelSearch( ExampleModel::class );
         $search->addFilter('SortBy', 'idDesc');
         $result = $search->result();
-
-        $this->assertEquals($result->count(), 10);
 
-        $predictedIndex = 10;
+        $predictedIndex = 14;
         foreach( $result as $exampleModel ) {
             $this->assertEquals($exampleModel->id, $predictedIndex);
             $predictedIndex--; //decrease index
@@ -154,6 +158,33 @@ public function it_can_add_filters_from_request()
         }
     }
 
+    /** @test */
+    public function it_can_add_filters_from_request_array_value()
+    {
+        $request = new \Illuminate\Http\Request();
+        $request->merge([
+            'filter_has_label' => [
+                'one',
+                'two'
+            ],
+        ]);
+
+        $this->assertEquals(true, $request->has('filter_has_label'));
+        $filterValues = $request->get('filter_has_label');
+        $this->assertEquals(true, in_array('one', $filterValues) );
+        $this->assertEquals(true, in_array('two', $filterValues) );
+
+        $search = new ModelSearch( ExampleModel::class );
+        $search->addRequestFilters( $request );
+        $result = $search->result();
+
+        $this->assertEquals($result->count(), 4);
+        foreach( $result as $exampleModel ) {
+            $this->assertEquals(true, $exampleModel->label_one);
+            $this->assertEquals(true, $exampleModel->label_two);
+        }
+    }
+
     /** @test */
     public function it_can_change_request_filter_prefix_during_runtime()
     {