{"id":1659,"date":"2020-04-01T15:25:40","date_gmt":"2020-04-01T15:25:40","guid":{"rendered":"https:\/\/www.magetop.com\/blog\/?p=1659"},"modified":"2021-07-22T02:56:30","modified_gmt":"2021-07-22T02:56:30","slug":"how-to-use-helper-and-setting-in-magento","status":"publish","type":"post","link":"https:\/\/www.magetop.com\/blog\/how-to-use-helper-and-setting-in-magento\/","title":{"rendered":"How To Use Helper And Setting In Magento 2"},"content":{"rendered":"\n

I have introduced How To Get Items To Storefront In Magento 2<\/a> in the previous lesson. In this lesson, I will introduce you to How To Use Helper And Setting In Magento 2.<\/p>\n\n\n\n

This lesson is very important, you will need to use it a lot. You should read the Magento 2 Extension Tutorial step by step to be able to understand this lesson.<\/p>\n\n\n\n

Module File Structure<\/h2>\n\n\n\n

We updated our module file structure looks as follows:<\/p>\n\n\n\n

\"helper<\/figure>\n\n\n\n

How to use Helper<\/h2>\n\n\n\n

First, create Data.php with the following path: <\/p>\n\n\n

\n<?php\nnamespace Magetop\\Helloworld\\Helper;\n\nuse Magento\\Framework\\App\\Helper\\AbstractHelper;\nuse Magento\\Framework\\App\\Helper\\Context;\n\nclass Data extends AbstractHelper\n{\n    public function __construct(Context $context)\n    {\n        parent::__construct($context);\n    }\n\n    function checkDate($date = '')\n    {\n        $ok = false;\n        if($date != '')\n        {\n            $day = date('w', strtotime($date));\n            if($day == 0)\n                $ok = true;\n        }\n        return $ok;\n    }\n}\n<\/pre><\/div>\n\n\n
Next, edit Index.php in the Controller.<\/p>\n\n\n
\n<?php\nnamespace Magetop\\Helloworld\\Controller\\Index;\n\nuse Magento\\Framework\\App\\Action\\Context;\nuse Magetop\\Helloworld\\Model\\ResourceModel\\Posts\\CollectionFactory;\nuse Magetop\\Helloworld\\Helper\\Data;\n\nclass Index extends \\Magento\\Framework\\App\\Action\\Action\n{\n    protected $_resultPageFactory;\n    protected $_postsFactory;\n    protected $_dataHelper;\n\n    public function __construct(\n        Context $context,\n        \\Magento\\Framework\\View\\Result\\PageFactory $resultPageFactory,\n        CollectionFactory $postsFactory,\n        Data $dataHelper)\n    {\n        parent::__construct($context);\n        $this->_resultPageFactory = $resultPageFactory;\n        $this->_postsFactory = $postsFactory;\n        $this->_dataHelper = $dataHelper;\n    }\n\n    public function execute()\n    {\n        echo "Get Data From magetop_blog table";\n        $this->_postsFactory->create();\n        $collection = $this->_postsFactory->create()\n            ->addFieldToSelect(array('title', 'description', 'created_at', 'status'))\n            ->addFieldToFilter('status', 1)\n            ->setPageSize(10);\n        echo '<pre>';\n        print_r($collection->getData());\n        echo '<pre>';\n        echo "========== Check date, helper function ======== <br>";\n        $date = '2020-04-01';\n        if ($this->_dataHelper->checkDate($date)) {\n            echo "Yes, {$date} is Sunday , I can go to your home";\n        } else {\n            echo "Yes, {$date} is not Sunday , I was to busy";\n        }\n    }\n}\n<\/pre><\/div>\n\n\n
Clear cache and check it in <yourdomain>\/helloworld\/index\/index<\/code><\/p>\n\n\n\n
\"Get<\/figure>\n\n\n\n
How to use Setting<\/h2>\n\n\n\n
The setting is very important in an extension because it helps the admin can configure data for the extension.<\/p>\n\n\n\n
Create file system.xml in Magetop\/Helloworld\/etc\/adminhtml\/system.xml.<\/p>\n\n\n
\n<?xml version="1.0" encoding="UTF-8"?>\n<!--\n\/**\n * system\n *\n * @copyright Copyright \u00a9 2020 Magetop. All rights reserved.\n * @author    info@magetop.com\n *\/\n-->\n<config xmlns:xsi="http:\/\/www.w3.org\/2001\/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc\/system_file.xsd">\n    <system>\n        <tab id="magetop_helloworld" translate="label" sortOrder="1">\n            <label>Magetop<\/label>\n        <\/tab>\n        <section id="blog" translate="label" sortOrder="1" showInDefault="1" showInWebsite="1" showInStore="1">\n            <label>Magetop Helloworld<\/label>\n            <tab>magetop_helloworld<\/tab>\n            <resource>Magetop_Helloworld::system_config<\/resource>\n            <group id="setting" translate="label" type="text" sortOrder="2" showInDefault="1" showInWebsite="1" showInStore="1">\n                <label>General Settings<\/label>\n                <field id="enable" translate="label" type="select" sortOrder="2" showInDefault="1" showInWebsite="1" showInStore="1">\n                    <label>Enable<\/label>\n                    <source_model>Magento\\Config\\Model\\Config\\Source\\Yesno<\/source_model>\n                <\/field>\n                <field id="number_posts" translate="label comment" type="text" sortOrder="5" showInDefault="1" showInWebsite="1" showInStore="1">\n                    <label>Number Posts<\/label>\n                    <comment>Number Posts<\/comment>\n                    <validate>required-entry<\/validate>\n                <\/field>\n            <\/group>\n        <\/section>\n    <\/system>\n<\/config>\n<\/pre><\/div>\n\n\n
You run two commands:<\/p>\n\n\n\n
php bin\/magento setup:upgrade\nphp bin\/magento setup:static-content:deploy -f<\/code><\/pre>\n\n\n\n
Go to Magento Admin Panel > STORES > Configuration in Settings section.<\/p>\n\n\n\n
\"Configuration<\/figure>\n\n\n\n
\"Config<\/figure>\n\n\n\n
You need to edit Data.php in Helper.<\/p>\n\n\n
\n<?php\nnamespace Magetop\\Helloworld\\Helper;\n\nuse Magento\\Framework\\App\\Helper\\AbstractHelper;\nuse Magento\\Framework\\App\\Helper\\Context;\nuse Magento\\Store\\Model\\ScopeInterface;\n\nclass Data extends AbstractHelper\n{\n    public function __construct(Context $context)\n    {\n        parent::__construct($context);\n    }\n\n    function checkDate($date = '')\n    {\n        $ok = false;\n        if($date != '')\n        {\n            $day = date('w', strtotime($date));\n            if($day == 0)\n                $ok = true;\n        }\n        return $ok;\n    }\n    \/**\n     * @param string $path\n     * @return mixed\n     *\/\n    function getHelloSetting($path = '')\n    {\n        return $this->scopeConfig->getValue($path,ScopeInterface::SCOPE_STORE);\n    }\n}\n<\/pre><\/div>\n\n\n
And call the new function in Controller, you can edit the file.<\/p>\n\n\n\n
Edit Index.php in the Controller.<\/p>\n\n\n
\n<?php\nnamespace Magetop\\Helloworld\\Controller\\Index;\n\nuse Magento\\Framework\\App\\Action\\Context;\nuse Magetop\\Helloworld\\Model\\ResourceModel\\Posts\\CollectionFactory;\nuse Magetop\\Helloworld\\Helper\\Data;\n\nclass Index extends \\Magento\\Framework\\App\\Action\\Action\n{\n    protected $_resultPageFactory;\n    protected $_postsFactory;\n    protected $_dataHelper;\n\n    public function __construct(\n        Context $context,\n        \\Magento\\Framework\\View\\Result\\PageFactory $resultPageFactory,\n        CollectionFactory $postsFactory,\n        Data $dataHelper)\n    {\n        parent::__construct($context);\n        $this->_resultPageFactory = $resultPageFactory;\n        $this->_postsFactory = $postsFactory;\n        $this->_dataHelper = $dataHelper;\n    }\n\n    public function execute()\n    {\n        echo "Get Data From magetop_blog table <br>";\n        $numberPosts = $this->_dataHelper->getHelloSetting('blog\/setting\/number_posts');\n        echo "Number Posts = {$numberPosts}";\n        $this->_postsFactory->create();\n        $collection = $this->_postsFactory->create()\n            ->addFieldToSelect(array('title','description','created_at','status')) \/\/ fields to select\n            ->addFieldToFilter('status',1) \/\/ filter status = 1\n            ->setPageSize($numberPosts); \/\/ get 2 items\n        echo '<pre>';\n        print_r($collection->getData());\n        echo '<pre>';\n        echo "==========Check date, helper function ======== <br>";\n        $date = '2020-04-01';\n        if ($this->_dataHelper->checkDate($date)) {\n            echo "Yes, {$date} is Sunday , I can go to your home";\n        } else {\n            echo "Yes, {$date} is not Sunday , I was to busy";\n        }\n    }\n}\n<\/pre><\/div>\n\n\n
Then, you can see it in <yourdomain>\/helloworld\/index\/index<\/code><\/p>\n\n\n\n
\"Check<\/figure>\n\n\n\n
I hope through this series you can create your own complete module. Good luck!<\/p>\n\n\n\n
In addition to How To Use Helper And Setting In Magento 2, you can read the articles How To Use Event In Magento 2<\/a>.<\/p>\n\n\n\n
Follow us for the more helpful article!<\/p>\n\n\n\n
We hope this is a useful series for you.<\/p>\n\n\n\n
Thank you for reading!<\/p>\n","protected":false},"excerpt":{"rendered":"
I have introduced How To Get Items To Storefront In Magento 2 in the previous lesson. In this lesson, I will introduce you to How To Use Helper And Setting In Magento 2.
\nThis lesson is very important, you will need to use it a lot. You should read the Magento 2 Extension Tutorial step by step to be able to understand this lesson.<\/p>\n","protected":false},"author":106,"featured_media":1745,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2],"tags":[350,348,349,347,107],"class_list":["post-1659","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-magento-2-tutorials","tag-create-configuration-magento-2","tag-how-to-create-a-helper-in-magento-2","tag-how-to-create-system-configuration-in-magento-2","tag-how-to-use-helper-and-setting-in-magento-2","tag-magento-2-tutorials"],"yoast_head":"\nHow To Use Helper And Setting In Magento 2 - Magetop Blog<\/title>\n<meta name=\"description\" content=\"In this lesson, I will introduce you to How To Use Helper And Setting In Magento 2. 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