multiselectfilter

resources/views/form/multipleselectfilters.blade.php

@@ -0,0 +1,30 @@
+<div class="form-group {!! !$errors->has($errorKey) ?: 'has-error' !!}">
+
+    <div class="col-sm-12">
+
+        @include('admin::form.error')
+        {{--@php--}}
+            {{--var_dump($column);--}}
+            {{--var_dump($value);--}}
+            {{--var_dump((array)old($column, $value));--}}
+        {{--@endphp--}}
+        @foreach($data as $group)
+            <div class ="row">
+                <div class="col-sm-12">
+                    {{$group['info']->title}}
+                </div>
+                @foreach($group['filters'] as $item)
+                    <div class="col-sm-2">
+                        <label class="checkbox-inline">
+                            <input type="checkbox" name="{{$name}}[]" value="{{$item->id}}" class="{{$class}}" {{  in_array($item->id, (array)old($column, $value)) ?'checked':'' }}  {!! $attributes !!} />&nbsp;{{$item->title}}
+                        </label>
+                    </div>
+                @endforeach
+            </div>
+            <hr/>
+        @endforeach
+        <input type="hidden" name="{{$name}}[]" />
+        @include('admin::form.help-block')
+
+    </div>
+</div>

src/Form.php

@@ -70,6 +70,7 @@
  * @method Field\MultipleFile   multipleFile($column, $label = '')
  * @method Field\Captcha        captcha($column, $label = '')
  * @method Field\Listbox        listbox($column, $label = '')
+ * @method Field\MultipleSelectFilters  multipleSelectFilters($column, $label = '')
  */
 class Form implements Renderable
 {
@@ -1318,6 +1319,7 @@ public static function registerBuiltinFields()
             'multipleImage'  => Field\MultipleImage::class,
             'captcha'        => Field\Captcha::class,
             'listbox'        => Field\Listbox::class,
+            'multipleSelectFilters'    => Field\MultipleSelectFilters::class,
         ];
 
         foreach ($map as $abstract => $class) {

src/Form/Field/MultipleSelectFilters.php

@@ -0,0 +1,118 @@
+<?php
+
+namespace Encore\Admin\Form\Field;
+
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+use Encore\Admin\Admin;
+
+class MultipleSelectFilters extends Select
+{
+    /**
+     * Other key for many-to-many relation.
+     *
+     * @var string
+     */
+    protected $otherKey;
+
+    /**
+     * Get other key for this many-to-many relation.
+     *
+     * @throws \Exception
+     *
+     * @return string
+     */
+    protected function getOtherKey()
+    {
+        if ($this->otherKey) {
+            return $this->otherKey;
+        }
+
+        if (is_callable([$this->form->model(), $this->column]) &&
+            ($relation = $this->form->model()->{$this->column}()) instanceof BelongsToMany
+        ) {
+            /* @var BelongsToMany $relation */
+            $fullKey = $relation->getQualifiedRelatedPivotKeyName();
+            $fullKeyArray = explode('.', $fullKey);
+
+            return $this->otherKey = end($fullKeyArray);
+        }
+
+        throw new \Exception('Column of this field must be a `BelongsToMany` relation.');
+    }
+
+    public function fill($data)
+    {
+        $relations = array_get($data, $this->column);
+
+        if (is_string($relations)) {
+            $this->value = explode(',', $relations);
+        }
+
+        if (is_array($relations)) {
+            if (is_string(current($relations))) {
+                $this->value = $relations;
+            } else {
+                foreach ($relations as $relation) {
+                    $this->value[] = array_get($relation, "pivot.{$this->getOtherKey()}");
+                }
+            }
+        }
+    }
+
+    public function setOriginal($data)
+    {
+        $relations = array_get($data, $this->column);
+
+        if (is_string($relations)) {
+            $this->original = explode(',', $relations);
+        }
+
+        if (is_array($relations)) {
+            if (is_string(current($relations))) {
+                $this->original = $relations;
+            } else {
+                foreach ($relations as $relation) {
+                    $this->original[] = array_get($relation, "pivot.{$this->getOtherKey()}");
+                }
+            }
+        }
+    }
+
+    public function prepare($value)
+    {
+        $value = (array) $value;
+
+        return array_filter($value);
+    }
+
+    public function options($options = [])
+    {
+        $this->options = $options;
+        return $this;
+    }
+
+    public function prepare_data($data){
+
+        $result = array();
+        foreach ($data['data'] as $item){
+            if(isset($result[$item->{$data['key']}])){
+                $result[$item->{$data['key']}]['filters'][] = $item;
+            }else{
+                $result[$item->{$data['key']}]['info'] = $item->{$data['field']}()->first();
+                $result[$item->{$data['key']}]['filters'][] = $item;
+            }
+        }
+
+        return $result;
+    }
+
+    public function render()
+    {
+        if (empty($this->script)) {
+            $this->script = "$('{$this->getElementClassSelector()}').iCheck({checkboxClass:'icheckbox_minimal-blue'});";        }
+        Admin::script($this->script);
+        $data = $this->prepare_data($this->options);
+
+        return view($this->getView(), $this->variables())->with(['options' => $this->options,'data'=>$data]);
+    }
+}