diff --git a/composer.json b/composer.json
index 94a818a9b..48d0cd2dd 100644
--- a/composer.json
+++ b/composer.json
@@ -16,6 +16,7 @@
         "laravel/framework": "5.6.*",
         "laravel/tinker": "^1.0",
         "nwidart/laravel-modules": "^3.2",
+        "prettus/l5-repository": "^2.6",
         "propaganistas/laravel-intl": "^2.0"
     },
     "require-dev": {
diff --git a/composer.lock b/composer.lock
index 43a06425e..cb287d95e 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "8acd4eec85be1351459a67cfd14d039b",
+    "content-hash": "ee788a0a8a86526cd58b0b4853a45c06",
     "packages": [
         {
             "name": "commerceguys/intl",
@@ -1394,6 +1394,109 @@
             ],
             "time": "2018-07-02T15:55:56+00:00"
         },
+        {
+            "name": "prettus/l5-repository",
+            "version": "2.6.32",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/andersao/l5-repository.git",
+                "reference": "f6ebfffee80a38e1d2dcf479e70b1a9ead397c24"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/andersao/l5-repository/zipball/f6ebfffee80a38e1d2dcf479e70b1a9ead397c24",
+                "reference": "f6ebfffee80a38e1d2dcf479e70b1a9ead397c24",
+                "shasum": ""
+            },
+            "require": {
+                "illuminate/config": "~5.0",
+                "illuminate/console": "~5.0",
+                "illuminate/database": "~5.0",
+                "illuminate/filesystem": "~5.0",
+                "illuminate/http": "~5.0",
+                "illuminate/pagination": "~5.0",
+                "illuminate/support": "~5.0",
+                "prettus/laravel-validation": "1.1.*"
+            },
+            "suggest": {
+                "league/fractal": "Required to use the Fractal Presenter (0.12.*).",
+                "prettus/laravel-validation": "Required to provide easy validation with the repository (1.1.*)",
+                "robclancy/presenter": "Required to use the Presenter Model (1.3.*)"
+            },
+            "type": "library",
+            "extra": {
+                "laravel": {
+                    "providers": [
+                        "Prettus\\Repository\\Providers\\RepositoryServiceProvider"
+                    ]
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Prettus\\Repository\\": "src/Prettus/Repository/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Anderson Andrade",
+                    "email": "contato@andersonandra.de",
+                    "role": "Developer"
+                }
+            ],
+            "description": "Laravel 5 - Repositories to  the database layer",
+            "keywords": [
+                "cache",
+                "eloquent",
+                "laravel",
+                "model",
+                "repository"
+            ],
+            "time": "2018-01-27T15:53:20+00:00"
+        },
+        {
+            "name": "prettus/laravel-validation",
+            "version": "1.1.5",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/andersao/laravel-validator.git",
+                "reference": "d9eb401fb3518a890b117e83bd25a4109fcdb704"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/andersao/laravel-validator/zipball/d9eb401fb3518a890b117e83bd25a4109fcdb704",
+                "reference": "d9eb401fb3518a890b117e83bd25a4109fcdb704",
+                "shasum": ""
+            },
+            "require": {
+                "illuminate/support": "~5.4",
+                "illuminate/validation": "~5.4",
+                "php": ">=5.4.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Prettus\\Validator\\": "src/Prettus/Validator/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "authors": [
+                {
+                    "name": "Anderson Andrade",
+                    "email": "contato@andersonandra.de"
+                }
+            ],
+            "description": "Laravel Validation Service",
+            "keywords": [
+                "laravel",
+                "service",
+                "validation"
+            ],
+            "time": "2017-08-28T23:28:32+00:00"
+        },
         {
             "name": "propaganistas/laravel-intl",
             "version": "2.0.3",
diff --git a/config/app.php b/config/app.php
index ad6f471c4..d34452c5f 100644
--- a/config/app.php
+++ b/config/app.php
@@ -172,6 +172,7 @@ return [
 
         //Laravel Intervention
         Intervention\Image\ImageServiceProvider::class,
+        Prettus\Repository\Providers\RepositoryServiceProvider::class,
 
         //Webkul packages
         Webkul\User\Providers\UserServiceProvider::class,
diff --git a/packages/Webkul/Admin/src/Resources/views/settings/channels/edit.blade.php b/packages/Webkul/Admin/src/Resources/views/settings/channels/edit.blade.php
index 4081cc838..dd6b2da91 100644
--- a/packages/Webkul/Admin/src/Resources/views/settings/channels/edit.blade.php
+++ b/packages/Webkul/Admin/src/Resources/views/settings/channels/edit.blade.php
@@ -67,7 +67,7 @@
 
                             <div class="control-group" :class="[errors.has('default_locale') ? 'has-error' : '']">
                                 <label for="default_locale" class="required">{{ __('admin::app.settings.channels.default-locale') }}</label>
-                                <?php $selectedOption = old('default_locale') ?: $channel->default_locale ?>
+                                <?php $selectedOption = old('default_locale') ?: $channel->default_locale_id ?>
                                 <select v-validate="'required'" class="control" id="default_locale" name="default_locale">
                                     @foreach(core()->getAllLocales() as $locale)
                                         <option value="{{ $locale->id }}" {{ $selectedOption == $locale->id ? 'selected' : '' }}>
@@ -82,7 +82,7 @@
                                 <label for="currencies" class="required">{{ __('admin::app.settings.channels.currencies') }}</label>
                                 <?php $selectedOptionIds = old('currencies') ?: $channel->currencies->pluck('id')->toArray() ?>
                                 <select v-validate="'required'" class="control" id="currencies" name="currencies[]" multiple>
-                                    @foreach(core()->geAllCurrencies() as $currency)
+                                    @foreach(core()->getAllCurrencies() as $currency)
                                         <option value="{{ $currency->id }}" {{ in_array($currency->id, $selectedOptionIds) ? 'selected' : '' }}>
                                             {{ $currency->name }}
                                         </option>
@@ -93,9 +93,9 @@
 
                             <div class="control-group" :class="[errors.has('base_currency') ? 'has-error' : '']">
                                 <label for="base_currency" class="required">{{ __('admin::app.settings.channels.base-currency') }}</label>
-                                <?php $selectedOption = old('base_currency') ?: $channel->base_currency ?>
+                                <?php $selectedOption = old('base_currency') ?: $channel->base_currency_id ?>
                                 <select v-validate="'required'" class="control" id="base_currency" name="base_currency">
-                                    @foreach(core()->geAllCurrencies() as $currency)
+                                    @foreach(core()->getAllCurrencies() as $currency)
                                         <option value="{{ $currency->id }}" {{ $selectedOption == $currency->id ? 'selected' : '' }}>
                                             {{ $currency->name }}
                                         </option>
diff --git a/packages/Webkul/Attribute/src/Http/Controllers/AttributeController.php b/packages/Webkul/Attribute/src/Http/Controllers/AttributeController.php
index 925c41e59..9d36faa78 100644
--- a/packages/Webkul/Attribute/src/Http/Controllers/AttributeController.php
+++ b/packages/Webkul/Attribute/src/Http/Controllers/AttributeController.php
@@ -90,7 +90,7 @@ class AttributeController extends Controller
      */
     public function edit($id)
     {
-        $attribute = $this->attribute->findOrFail($id);
+        $attribute = $this->attribute->find($id);
 
         return view($this->_config['view'], compact('attribute'));
     }
diff --git a/packages/Webkul/Attribute/src/Http/Controllers/AttributeFamilyController.php b/packages/Webkul/Attribute/src/Http/Controllers/AttributeFamilyController.php
index f15e57afe..24914510e 100644
--- a/packages/Webkul/Attribute/src/Http/Controllers/AttributeFamilyController.php
+++ b/packages/Webkul/Attribute/src/Http/Controllers/AttributeFamilyController.php
@@ -61,7 +61,7 @@ class AttributeFamilyController extends Controller
      */
     public function create(Attribute $attribute)
     {
-        $attributeFamily = $this->attributeFamily->findBy('code', 'default', ['*'], ['attribute_groups.custom_attributes']);
+        $attributeFamily = $this->attributeFamily->with(['attribute_groups.custom_attributes'])->findOneByField('code', 'default');
         
         $custom_attributes = $attribute->all(['id', 'code', 'admin_name', 'type']);
 
@@ -96,7 +96,7 @@ class AttributeFamilyController extends Controller
      */
     public function edit(Attribute $attribute, $id)
     {
-        $attributeFamily = $this->attributeFamily->findOrFail($id, ['*'], ['attribute_groups.custom_attributes']);
+        $attributeFamily = $this->attributeFamily->find($id, ['*'], ['attribute_groups.custom_attributes']);
 
         $custom_attributes = $attribute->all(['id', 'code', 'admin_name', 'type']);
 
diff --git a/packages/Webkul/Attribute/src/Repositories/AttributeFamilyRepository.php b/packages/Webkul/Attribute/src/Repositories/AttributeFamilyRepository.php
index c3aa2e5ce..9398308fc 100644
--- a/packages/Webkul/Attribute/src/Repositories/AttributeFamilyRepository.php
+++ b/packages/Webkul/Attribute/src/Repositories/AttributeFamilyRepository.php
@@ -74,7 +74,7 @@ class AttributeFamilyRepository extends Repository
                 if(isset($attribute['id'])) {
                     $attributeModel = $this->attribute->find($attribute['id']);
                 } else {
-                    $attributeModel = $this->attribute->findBy('code', $attribute['code']);
+                    $attributeModel = $this->attribute->findOneByField('code', $attribute['code']);
                 }
                 
                 $attributeGroup->custom_attributes()->save($attributeModel, ['position' => $key + 1]);
@@ -92,7 +92,7 @@ class AttributeFamilyRepository extends Repository
      */
     public function update(array $data, $id, $attribute = "id")
     {
-        $family = $this->findOrFail($id);
+        $family = $this->find($id);
 
         $family->update($data);
 
@@ -114,7 +114,7 @@ class AttributeFamilyRepository extends Repository
                         $previousAttributeGroupIds->forget($index);
                     }
 
-                    $attributeGroup = $this->attributeGroup->findOrFail($attributeGroupId);
+                    $attributeGroup = $this->attributeGroup->find($attributeGroupId);
                     $attributeGroup->update($attributeGroupInputs);
 
                     $attributeIds = $attributeGroup->custom_attributes()->get()->pluck('id');
diff --git a/packages/Webkul/Attribute/src/Repositories/AttributeRepository.php b/packages/Webkul/Attribute/src/Repositories/AttributeRepository.php
index 3c5e9800c..d5f9fd7e8 100644
--- a/packages/Webkul/Attribute/src/Repositories/AttributeRepository.php
+++ b/packages/Webkul/Attribute/src/Repositories/AttributeRepository.php
@@ -75,7 +75,7 @@ class AttributeRepository extends Repository
     {
         $data = $this->validateUserInput($data);
 
-        $attribute = $this->findOrFail($id);
+        $attribute = $this->find($id);
 
         $attribute->update($data);
 
diff --git a/packages/Webkul/Category/src/Http/Controllers/CategoryController.php b/packages/Webkul/Category/src/Http/Controllers/CategoryController.php
index 6329ca06d..7a29ff54a 100644
--- a/packages/Webkul/Category/src/Http/Controllers/CategoryController.php
+++ b/packages/Webkul/Category/src/Http/Controllers/CategoryController.php
@@ -92,7 +92,7 @@ class CategoryController extends Controller
     {
         $categories = $this->category->getCategoryTree($id);
 
-        $category = $this->category->findOrFail($id);
+        $category = $this->category->find($id);
 
         return view($this->_config['view'], compact('category', 'categories'));
     }
diff --git a/packages/Webkul/Core/src/Contracts/RepositoryInterface.php b/packages/Webkul/Core/src/Contracts/RepositoryInterface.php
deleted file mode 100644
index a9b283bee..000000000
--- a/packages/Webkul/Core/src/Contracts/RepositoryInterface.php
+++ /dev/null
@@ -1,29 +0,0 @@
-<?php 
-
-namespace Webkul\Core\Contracts;
-
-/**
- * Reposotory Interface
- *
- * @author    Jitendra Singh <jitendra@webkul.com>
- * @copyright 2018 Webkul Software Pvt Ltd (http://www.webkul.com)
- */
-interface RepositoryInterface {
-
-    public function all($columns = ['*']);
- 
-    public function paginate($perPage = 15, $columns = ['*']);
- 
-    public function create(array $data);
- 
-    public function update(array $data, $id);
- 
-    public function delete($id);
- 
-    public function find($id, $columns = ['*']);
-
-    public function findOrFail($id, $columns = ['*']);
- 
-    public function findBy($field, $value, $columns = ['*']);
-
-}
\ No newline at end of file
diff --git a/packages/Webkul/Core/src/Eloquent/Repository.php b/packages/Webkul/Core/src/Eloquent/Repository.php
index 0370b2dd2..7ca98083e 100644
--- a/packages/Webkul/Core/src/Eloquent/Repository.php
+++ b/packages/Webkul/Core/src/Eloquent/Repository.php
@@ -2,9 +2,7 @@
 
 namespace Webkul\Core\Eloquent;
 
-use Webkul\Core\Contracts\RepositoryInterface;
-use Webkul\Core\Exceptions\RepositoryException;
-
+use Prettus\Repository\Eloquent\BaseRepository;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Container\Container as App;
 
@@ -14,158 +12,38 @@ use Illuminate\Container\Container as App;
  * @author    Jitendra Singh <jitendra@webkul.com>
  * @copyright 2018 Webkul Software Pvt Ltd (http://www.webkul.com)
  */
-abstract class Repository implements RepositoryInterface {
+abstract class Repository extends BaseRepository {
 
     /**
-     * @var App
-     */
-    private $app;
-
-    /**
-     * @var \Illuminate\Database\Eloquent\Model
-     */
-    protected $model;
-
-    /**
-     * @param App $app
-     * @throws \Webkul\Core\Exceptions\RepositoryException
-     */
-    public function __construct(App $app)
-    {
-        $this->app = $app;
-
-        $this->makeModel();
-    }
-
-    /**
-     * Specify Model class name
+     * Find data by field and value
+     *
+     * @param       $field
+     * @param       $value
+     * @param array $columns
      *
      * @return mixed
      */
-    public abstract function model();
+    public function findOneByField($field, $value = null, $columns = ['*'])
+    {
+        $model = parent::findByField($field, $value, $columns = ['*']);
+        
+        return $model->first();
+    }
 
     /**
+     * Find data by field and value
+     *
+     * @param       $field
+     * @param       $value
      * @param array $columns
+     *
      * @return mixed
      */
-    public function all($columns = ['*'], $with = [])
+    public function findOneWhere(array $where, $columns = ['*'])
     {
-        return $this->resetScope()->model->with($with)->get($columns);
-    }
-
-    /**
-     * @param int $perPage
-     * @param array $columns
-     * @return mixed
-     */
-    public function paginate($perPage = 1, $columns = ['*'])
-    {
-        return $this->resetScope()->model->paginate($perPage, $columns);
-    }
-
-    /**
-     * @param array $data
-     * @return mixed
-     */
-    public function create(array $data)
-    {
-        return $this->resetScope()->model->create($data);
-    }
-
-    /**
-     * @param array $data
-     * @param $id
-     * @param string $attribute
-     * @return mixed
-     */
-    public function update(array $data, $id, $attribute = "id")
-    {
-        return $this->resetScope()->model->where($attribute, '=', $id)->first()->update($data);
-    }
-
-    /**
-     * @param $id
-     * @return mixed
-     */
-    public function delete($id)
-    {
-        return $this->resetScope()->find($id)->delete();
-    }
-
-    /**
-     * @param $id
-     * @param array $columns->with($with)
-     * @return mixed
-     */
-    public function find($id, $columns = ['*'], $with = [])
-    {
-        return $this->resetScope()->model->with($with)->find($id, $columns);
-    }
-
-    /**
-     * @param $id
-     * @param array $columns
-     * @return mixed
-     */
-    public function findOrFail($id, $columns = ['*'], $with = [])
-    {
-        return $this->resetScope()->model->with($with)->findOrFail($id, $columns);
-    }
-
-    /**
-     * @param $attribute
-     * @param $value
-     * @param array $columns
-     * @return mixed
-     */
-    public function findBy($attribute, $value, $columns = ['*'], $with = [])
-    {
-        return $this->resetScope()->model->with($with)->where($attribute, '=', $value)->first($columns);
-    }
-
-    /**
-     * @param $conditions
-     * @param array $columns
-     * @return mixed
-     */
-    public function findWhere($conditions, $columns = ['*'], $with = [])
-    {
-        $model = $this->resetScope()->model;
-
-        foreach ($conditions as $column => $value) {
-            if(is_array($value)) {
-                list($column, $condition, $val) = $value;
-                $this->model = $this->model->where($column, $condition, $val);
-            } else {
-                $model->where($column, $value);
-            }
-
-        }
-
-        return $model->with($with)->get($columns);
-    }
-
-    /**
-     * @return \Illuminate\Database\Eloquent\Builder
-     * @throws RepositoryException
-     */
-    public function makeModel()
-    {
-        $model = $this->app->make($this->model());
-
-        if (!$model instanceof Model)
-            throw new RepositoryException("Class {$this->model()} must be an instance of Illuminate\\Database\\Eloquent\\Model");
-
-        return $this->model = $model->newQuery();
-    }
-
-    /**
-     * @return $this
-     */
-    public function resetScope() {
-        $this->makeModel();
-
-        return $this;
+        $model = parent::findWhere($where, $columns);
+        
+        return $model->first();
     }
 
     /**
diff --git a/packages/Webkul/Core/src/Exceptions/RepositoryException.php b/packages/Webkul/Core/src/Exceptions/RepositoryException.php
deleted file mode 100644
index 2fce64a6c..000000000
--- a/packages/Webkul/Core/src/Exceptions/RepositoryException.php
+++ /dev/null
@@ -1,14 +0,0 @@
-<?php
-
-namespace Webkul\Core\Exceptions;
-
-/**
- * Reposotory Exception
- *
- * @author    Jitendra Singh <jitendra@webkul.com>
- * @copyright 2018 Webkul Software Pvt Ltd (http://www.webkul.com)
- */
-class RepositoryException extends \Exception
-{
-    
-}
\ No newline at end of file
diff --git a/packages/Webkul/Core/src/Http/Controllers/ChannelController.php b/packages/Webkul/Core/src/Http/Controllers/ChannelController.php
index 801eb8e33..b34ac0321 100644
--- a/packages/Webkul/Core/src/Http/Controllers/ChannelController.php
+++ b/packages/Webkul/Core/src/Http/Controllers/ChannelController.php
@@ -94,7 +94,7 @@ class ChannelController extends Controller
      */
     public function edit($id)
     {
-        $channel = $this->channel->findOrFail($id, ['*'], ['locales', 'currencies']);
+        $channel = $this->channel->with(['locales', 'currencies'])->find($id);
 
         return view($this->_config['view'], compact('channel'));
     }
diff --git a/packages/Webkul/Core/src/Http/Controllers/ExchangeRateController.php b/packages/Webkul/Core/src/Http/Controllers/ExchangeRateController.php
index 26680de50..e7f6cf1b1 100644
--- a/packages/Webkul/Core/src/Http/Controllers/ExchangeRateController.php
+++ b/packages/Webkul/Core/src/Http/Controllers/ExchangeRateController.php
@@ -110,7 +110,7 @@ class ExchangeRateController extends Controller
     {
         $currencies = $this->currency->all();
 
-        $exchangeRate = $this->exchangeRate->findOrFail($id);
+        $exchangeRate = $this->exchangeRate->find($id);
 
         return view($this->_config['view'], compact('currencies', 'exchangeRate'));
     }
diff --git a/packages/Webkul/Core/src/Http/Middleware/Locale.php b/packages/Webkul/Core/src/Http/Middleware/Locale.php
index b01e175b5..8b128eabc 100644
--- a/packages/Webkul/Core/src/Http/Middleware/Locale.php
+++ b/packages/Webkul/Core/src/Http/Middleware/Locale.php
@@ -31,7 +31,7 @@ class Locale
     public function handle($request, Closure $next)
     {
         if($locale = $request->get('locale')) {
-            if($this->locale->findBy('code', $locale)) {
+            if($this->locale->findOneByField('code', $locale)) {
                 // app()->setLocale($locale);
             }
         }
diff --git a/packages/Webkul/Core/src/Repositories/ChannelRepository.php b/packages/Webkul/Core/src/Repositories/ChannelRepository.php
index d1ecb0662..4e6fdaa7e 100644
--- a/packages/Webkul/Core/src/Repositories/ChannelRepository.php
+++ b/packages/Webkul/Core/src/Repositories/ChannelRepository.php
@@ -45,7 +45,7 @@ class ChannelRepository extends Repository
      */
     public function update(array $data, $id, $attribute = "id")
     {
-        $channel = $this->findOrFail($id);
+        $channel = $this->find($id);
 
         $channel->update($data);
 
diff --git a/packages/Webkul/Inventory/src/Http/Controllers/InventorySourceController.php b/packages/Webkul/Inventory/src/Http/Controllers/InventorySourceController.php
index 6cd28b391..eedb428dc 100644
--- a/packages/Webkul/Inventory/src/Http/Controllers/InventorySourceController.php
+++ b/packages/Webkul/Inventory/src/Http/Controllers/InventorySourceController.php
@@ -87,7 +87,7 @@ class InventorySourceController extends Controller
      */
     public function edit($id)
     {
-        $inventorySource = $this->inventorySource->findOrFail($id);
+        $inventorySource = $this->inventorySource->find($id);
 
         return view($this->_config['view'], compact('inventorySource'));
     }
diff --git a/packages/Webkul/Product/src/Http/Controllers/ProductController.php b/packages/Webkul/Product/src/Http/Controllers/ProductController.php
index c995bf4f2..c97535b2c 100644
--- a/packages/Webkul/Product/src/Http/Controllers/ProductController.php
+++ b/packages/Webkul/Product/src/Http/Controllers/ProductController.php
@@ -99,7 +99,7 @@ class ProductController extends Controller
         $families = $this->attributeFamily->all();
 
         if($familyId = request()->get('family')) {
-            $configurableFamily = $this->attributeFamily->findOrFail($familyId);
+            $configurableFamily = $this->attributeFamily->find($familyId);
         }
 
         return view($this->_config['view'], compact('families', 'configurableFamily'));
@@ -143,7 +143,7 @@ class ProductController extends Controller
      */
     public function edit($id)
     {
-        $product = $this->product->findOrFail($id, ['*'], ['variants']);
+        $product = $this->product->with(['variants'])->find($id);
 
         $categories = $this->category->getCategoryTree();
 
diff --git a/packages/Webkul/Product/src/Product/AbstractProduct.php b/packages/Webkul/Product/src/Product/AbstractProduct.php
index b24547164..0f377df36 100644
--- a/packages/Webkul/Product/src/Product/AbstractProduct.php
+++ b/packages/Webkul/Product/src/Product/AbstractProduct.php
@@ -2,6 +2,8 @@
 
 namespace Webkul\Product\Product;
 
+use Webkul\Product\Models\ProductAttributeValue;
+
 abstract class AbstractProduct
 {
     /**
@@ -33,4 +35,30 @@ abstract class AbstractProduct
 
         return $qb;
     }
+
+    /**
+     * Adds attributes to select
+     *
+     * @param QB $qb
+     * @return QB
+     */
+    public function addSelectAttributes($qb)
+    {
+        foreach ($this->attributeToSelect as $code) {
+            $attribute = $this->attribute->findOneByField('code', $code);
+            
+            $productValueAlias = 'pav_' . $attribute->code;
+
+            $qb->leftJoin('product_attribute_values as ' . $productValueAlias, function($leftJoin) use($attribute, $productValueAlias) {
+
+                $leftJoin->on('products.id', $productValueAlias . '.product_id');
+
+                $leftJoin = $this->applyChannelLocaleFilter($attribute, $leftJoin, $productValueAlias)->where($productValueAlias . '.attribute_id', $attribute->id);
+            });
+
+            $qb->addSelect($productValueAlias . '.' . ProductAttributeValue::$attributeTypeFields[$attribute->type] . ' as ' . $code);
+        }
+
+        return $qb;
+    }
 }
\ No newline at end of file
diff --git a/packages/Webkul/Product/src/Product/Collection.php b/packages/Webkul/Product/src/Product/Collection.php
index af7af806c..e691166c6 100644
--- a/packages/Webkul/Product/src/Product/Collection.php
+++ b/packages/Webkul/Product/src/Product/Collection.php
@@ -5,7 +5,6 @@ namespace Webkul\Product\Product;
 use Illuminate\Support\Facades\DB;
 use Webkul\Product\Repositories\ProductRepository as Product;
 use Webkul\Attribute\Repositories\AttributeRepository as Attribute;
-use Webkul\Product\Models\ProductAttributeValue;
 
 class Collection extends AbstractProduct
 {
@@ -28,7 +27,7 @@ class Collection extends AbstractProduct
      *
      * @var array
      */
-    protected $attributesToSelect = [
+    protected $attributeToSelect = [
             'name',
             'description',
             'short_description',
@@ -58,42 +57,33 @@ class Collection extends AbstractProduct
      */
     public function addAttributesToSelect($attributes)
     {
-        $this->attributesToSelect = $attributes;
+        $this->attributeToSelect = array_unique(
+                array_merge($this->attributeToSelect, $attributes)
+            );
+
+        return $this;
     }
 
     /**
      * @param integer $categoryId
      * @return Collection
      */
-    public function getProductCollection($categoryId = null, $attributeToSelect = '*')
+    public function getCollection($categoryId = null)
     {
         $qb = $this->product->getModel()
                 ->select('products.*')
                 ->join('product_categories', 'products.id', '=', 'product_categories.product_id')
                 ->where('product_categories.category_id', $categoryId);
 
-        foreach ($this->attributesToSelect as $code) {
-            $attribute = $this->attribute->findBy('code', $code);
-            
-            $productValueAlias = 'pav_' . $attribute->code;
-
-            $qb->leftJoin('product_attribute_values as ' . $productValueAlias, function($leftJoin) use($attribute, $productValueAlias) {
-
-                $leftJoin->on('products.id', $productValueAlias . '.product_id');
-
-                $leftJoin = $this->applyChannelLocaleFilter($attribute, $leftJoin, $productValueAlias)->where($productValueAlias . '.attribute_id', $attribute->id);
-            });
-
-            $qb->addSelect($productValueAlias . '.' . ProductAttributeValue::$attributeTypeFields[$attribute->type] . ' as ' . $code);
-        }
+        $this->addSelectAttributes($qb);
         
-        foreach (request()->input() as $code => $value) {
-            $filterAlias = 'filter_' . $code;
+        // foreach (request()->input() as $code => $value) {
+        //     $filterAlias = 'filter_' . $code;
                 
-            $qb->leftJoin('product_attribute_values as ' . $filterAlias, 'products.id', '=', $filterAlias . '.product_id');
+        //     $qb->leftJoin('product_attribute_values as ' . $filterAlias, 'products.id', '=', $filterAlias . '.product_id');
 
-            $qb->where($filterAlias . '.' . ProductAttributeValue::$attributeTypeFields[$attribute->type], $value);
-        }
+        //     $qb->where($filterAlias . '.' . ProductAttributeValue::$attributeTypeFields[$attribute->type], $value);
+        // }
 
         // if(0) {
         //     $qb->orderBy('id', 'desc');
diff --git a/packages/Webkul/Product/src/Product/Price.php b/packages/Webkul/Product/src/Product/Price.php
index 06f616ffe..f07417649 100644
--- a/packages/Webkul/Product/src/Product/Price.php
+++ b/packages/Webkul/Product/src/Product/Price.php
@@ -56,7 +56,7 @@ class Price extends AbstractProduct
         static $attribute;
 
         if(!$attribute)
-            $attribute = $this->attribute->findBy('code', 'price');
+            $attribute = $this->attribute->findOneByField('code', 'price');
 
         $qb = ProductAttributeValue::join('products', 'product_attribute_values.product_id', '=', 'products.id')
             ->join('attributes', 'product_attribute_values.attribute_id', '=', 'attributes.id')
@@ -64,7 +64,7 @@ class Price extends AbstractProduct
             ->where('attributes.code', 'price')
             ->addSelect('product_attribute_values.*');
 
-        $qb = $this->applyChannelLocaleFilter($attribute, $qb);
+        $this->applyChannelLocaleFilter($attribute, $qb);
 
         return $qb->min('product_attribute_values.' . ProductAttributeValue::$attributeTypeFields['price']);
     }
diff --git a/packages/Webkul/Product/src/Repositories/ProductAttributeValueRepository.php b/packages/Webkul/Product/src/Repositories/ProductAttributeValueRepository.php
index 685daac25..d7e4f0701 100644
--- a/packages/Webkul/Product/src/Repositories/ProductAttributeValueRepository.php
+++ b/packages/Webkul/Product/src/Repositories/ProductAttributeValueRepository.php
@@ -54,7 +54,7 @@ class ProductAttributeValueRepository extends Repository
         if(isset($data['attribute_id'])) {
             $attribute = $this->attribute->find($data['attribute_id']);
         } else {
-            $attribute = $this->attribute->findBy('code', $data['attribute_code']);
+            $attribute = $this->attribute->findOneByField('code', $data['attribute_code']);
         }
 
         if(!$attribute)
diff --git a/packages/Webkul/Product/src/Repositories/ProductInventoryRepository.php b/packages/Webkul/Product/src/Repositories/ProductInventoryRepository.php
index 8f634b871..40d8462de 100644
--- a/packages/Webkul/Product/src/Repositories/ProductInventoryRepository.php
+++ b/packages/Webkul/Product/src/Repositories/ProductInventoryRepository.php
@@ -37,10 +37,10 @@ class ProductInventoryRepository extends Repository
                 if(is_null($qty))
                     continue;
                     
-                $productInventory = $this->findWhere([
+                $productInventory = $this->findOneWhere([
                         'product_id' => $product->id,
                         'inventory_source_id' => $inventorySourceId,
-                    ])->first();
+                    ]);
 
                 if($productInventory) {
                     if(is_numeric($index = $inventorySourceIds->search($inventorySourceId))) {
diff --git a/packages/Webkul/Product/src/Repositories/ProductRepository.php b/packages/Webkul/Product/src/Repositories/ProductRepository.php
index ebd40d5bf..6000411fc 100644
--- a/packages/Webkul/Product/src/Repositories/ProductRepository.php
+++ b/packages/Webkul/Product/src/Repositories/ProductRepository.php
@@ -103,7 +103,7 @@ class ProductRepository extends Repository
     {
         $product = $this->model->create($data);
 
-        $nameAttribute = $this->attribute->findBy('code', 'status');
+        $nameAttribute = $this->attribute->findOneByField('code', 'status');
         $this->attributeValue->create([
                 'product_id' => $product->id,
                 'attribute_id' => $nameAttribute->id,
@@ -115,7 +115,7 @@ class ProductRepository extends Repository
             $super_attributes = [];
 
             foreach ($data['super_attributes'] as $attributeCode => $attributeOptions) {
-                $attribute = $this->attribute->findBy('code', $attributeCode);
+                $attribute = $this->attribute->findOneByField('code', $attributeCode);
 
                 $super_attributes[$attribute->id] = $attributeOptions;
 
@@ -138,7 +138,7 @@ class ProductRepository extends Repository
      */
     public function update(array $data, $id, $attribute = "id")
     {
-        $product = $this->findOrFail($id);
+        $product = $this->find($id);
 
         if($product->parent_id && $this->checkVariantOptionAvailabiliy($data, $product)) {
             $data['parent_id'] = NULL;
@@ -155,12 +155,12 @@ class ProductRepository extends Repository
             if(!isset($data[$attribute->code]) || !$data[$attribute->code])
                 continue;
 
-            $attributeValue = $this->attributeValue->findWhere([
+            $attributeValue = $this->attributeValue->findOneWhere([
                     'product_id' => $product->id,
                     'attribute_id' => $attribute->id,
                     'channel' => $attribute->value_per_channel ? $data['channel'] : null,
                     'locale' => $attribute->value_per_locale ? $data['locale'] : null
-                ])->first();
+                ]);
 
             if(!$attributeValue) {
                 $this->attributeValue->create([
@@ -228,7 +228,7 @@ class ProductRepository extends Repository
             ]);
 
         foreach (['sku', 'name', 'price', 'weight', 'status'] as $attributeCode) {
-            $attribute = $this->attribute->findBy('code', $attributeCode);
+            $attribute = $this->attribute->findOneByField('code', $attributeCode);
 
             if($attribute->value_per_channel) {
                 if($attribute->value_per_locale) {
@@ -293,19 +293,19 @@ class ProductRepository extends Repository
      */
     public function updateVariant(array $data, $id)
     {
-        $variant = $this->findOrFail($id);
+        $variant = $this->find($id);
 
         $variant->update(['sku' => $data['sku']]);
 
         foreach (['sku', 'name', 'price', 'weight', 'status'] as $attributeCode) {
-            $attribute = $this->attribute->findBy('code', $attributeCode);
+            $attribute = $this->attribute->findOneByField('code', $attributeCode);
 
-            $attributeValue = $this->attributeValue->findWhere([
+            $attributeValue = $this->attributeValue->findOneWhere([
                     'product_id' => $id,
                     'attribute_id' => $attribute->id,
                     'channel' => $attribute->value_per_channel ? $data['channel'] : null,
                     'locale' => $attribute->value_per_locale ? $data['locale'] : null
-                ])->first();
+                ]);
             
             if(!$attributeValue) {
                 $this->attributeValue->create([
diff --git a/packages/Webkul/Shop/src/Http/Controllers/HomeController.php b/packages/Webkul/Shop/src/Http/Controllers/HomeController.php
index bb90d24b7..10a2d086d 100644
--- a/packages/Webkul/Shop/src/Http/Controllers/HomeController.php
+++ b/packages/Webkul/Shop/src/Http/Controllers/HomeController.php
@@ -31,7 +31,7 @@ use Webkul\Channel\Channel as Channel;
 
         $current_channel = core()->getCurrentChannel();
 
-        $all_sliders = $this->sliders->findWhere(['channel_id'=>$current_channel['id']]);
+        $all_sliders = $this->sliders->findOneWhere(['channel_id'=>$current_channel['id']]);
 
         return view($this->_config['view'])->with('data',$all_sliders);
     }
diff --git a/packages/Webkul/Shop/src/Resources/views/layouts/master.blade.php b/packages/Webkul/Shop/src/Resources/views/layouts/master.blade.php
index 9e1e3f4ba..f2a89f421 100644
--- a/packages/Webkul/Shop/src/Resources/views/layouts/master.blade.php
+++ b/packages/Webkul/Shop/src/Resources/views/layouts/master.blade.php
@@ -41,18 +41,19 @@
 
     <script type="text/javascript">
         window.flashMessages = [];
-            @if($success = session('success'))
-                window.flashMessages = [{'type': 'alert-success', 'message': "{{ $success }}" }];
-            @elseif($warning = session('warning'))
-                window.flashMessages = [{'type': 'alert-warning', 'message': "{{ $warning }}" }];
-            @elseif($error = session('error'))
-                window.flashMessages = [{'type': 'alert-error', 'message': "{{ $error }}" }];
-            @endif
+        
+        @if($success = session('success'))
+            window.flashMessages = [{'type': 'alert-success', 'message': "{{ $success }}" }];
+        @elseif($warning = session('warning'))
+            window.flashMessages = [{'type': 'alert-warning', 'message': "{{ $warning }}" }];
+        @elseif($error = session('error'))
+            window.flashMessages = [{'type': 'alert-error', 'message': "{{ $error }}" }];
+        @endif
 
-            window.serverErrors = [];
-            @if (count($errors))
-                window.serverErrors = @json($errors->getMessages());
-            @endif
+        window.serverErrors = [];
+        @if (count($errors))
+            window.serverErrors = @json($errors->getMessages());
+        @endif
     </script>
 
     <script type="text/javascript" src="{{ bagisto_asset('js/shop.js') }}"></script>
diff --git a/packages/Webkul/Shop/src/Resources/views/products/index.blade.php b/packages/Webkul/Shop/src/Resources/views/products/index.blade.php
index ef9b364ea..303f53038 100644
--- a/packages/Webkul/Shop/src/Resources/views/products/index.blade.php
+++ b/packages/Webkul/Shop/src/Resources/views/products/index.blade.php
@@ -10,7 +10,7 @@
 
             @inject ('productHelper', 'Webkul\Product\Product\Collection')
             
-            <?php $products = $productHelper->getProductCollection($category->id); ?>
+            <?php $products = $productHelper->getCollection($category->id); ?>
             
             @foreach ($products as $product)
 
diff --git a/packages/Webkul/Ui/src/DataGrid/ProductGrid.php b/packages/Webkul/Ui/src/DataGrid/ProductGrid.php
index 2bbd665e0..bae6558f2 100644
--- a/packages/Webkul/Ui/src/DataGrid/ProductGrid.php
+++ b/packages/Webkul/Ui/src/DataGrid/ProductGrid.php
@@ -573,7 +573,7 @@ class ProductGrid
         $locale = app()->getLocale();
 
         foreach (['name', 'description', 'short_description', 'price'] as $code) {
-        $attribute = $this->attributes->findBy('code', $code);
+        $attribute = $this->attributes->findOneByField('code', $code);
 
         $productValueAlias = 'pav_' . $attribute->code;
 
@@ -628,7 +628,7 @@ class ProductGrid
                 $locale = $this->locale;
 
                 foreach ($this->attributeColumns as $code) {
-                    $attribute = $this->attributes->findBy('code', $code);
+                    $attribute = $this->attributes->findOneByField('code', $code);
 
                     $productValueAlias = 'pav_' . $attribute->code;
 
diff --git a/packages/Webkul/User/src/Http/Controllers/RoleController.php b/packages/Webkul/User/src/Http/Controllers/RoleController.php
index 175879aec..0c6a231e2 100644
--- a/packages/Webkul/User/src/Http/Controllers/RoleController.php
+++ b/packages/Webkul/User/src/Http/Controllers/RoleController.php
@@ -89,7 +89,7 @@ class RoleController extends Controller
      */
     public function edit($id)
     {
-        $role = $this->role->findOrFail($id);
+        $role = $this->role->find($id);
 
         return view($this->_config['view'], compact('role'));
     }
diff --git a/packages/Webkul/User/src/Http/Controllers/UserController.php b/packages/Webkul/User/src/Http/Controllers/UserController.php
index 6fc63d849..aec000b1a 100644
--- a/packages/Webkul/User/src/Http/Controllers/UserController.php
+++ b/packages/Webkul/User/src/Http/Controllers/UserController.php
@@ -100,7 +100,7 @@ class UserController extends Controller
      */
     public function edit($id)
     {
-        $user = $this->admin->findOrFail($id);
+        $user = $this->admin->find($id);
 
         $roles = $this->role->all();