First you have to Override your Existing File so basically you need to follow such simple steps:
- Create Module OSCP_NewsletterOveride - Path: app/code/OSCP/NewsletterOveride
- Create module.xml file in path app/code/OSCP/NewsletterOveride/etc/module.xml
and paste this code
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
<module name="OSCP_NewsletterOveride" setup_version="1.0.0">
</module>
</config>
- Create etc/registration.php file -path: app/code/OSCP/NewsletterOveride/registration.php
and paste this code
<?php
\Magento\Framework\Component\ComponentRegistrar::register(
\Magento\Framework\Component\ComponentRegistrar::MODULE,
'OSCP_NewsletterOveride',
__DIR__
);
Now Enable the Module with command:php bin/magento module:enable OSCP_NewsletterOveride
This way you can create your Module.
Now Override Newsletter File
Create File URL/newsletter/edit/
Now Create newsletter_edit_index.xml in Path: app/code/OSCP/NewsletterOveride/view/frontend/layout/newsletter_edit_index.xml
and Add following code:
<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<update handle="customer_account"/>
<body>
<referenceContainer name="content">
<block class="Magento\Customer\Block\Newsletter" name="customer_newsletter_form" template="OSCP_NewsletterOverride::form/newsletter.phtml">
<container name="customer.newsletter.form" as="form_override" label="Newsletter Subscription" htmlTag="div" htmlClass="newsletter_form"/>
</block>
</referenceContainer>
</body>
</page>
Now copy your original newsletter file in following Path: app/code/OSCP/NewsletterOveride/view/frontend/templates/form/newsletter.phtml
Hope this will help you!!