Creacion de Modulo Mageplaza

1.- ejemplo completo tomado de : https://www.mageplaza.com/magento-2-module-development/

Objetivo : crear una Pagina [vista] en el FRONTEND que cargue los registros de una tabla

Step 0: Create module
Step 1: Create routes.xml file
Step 2: Create controller file
Step 3: Create controller Layout file
Step 4: Create controller Block file
Step 5: Create controller template file
Step 6: Flush Magento cache
Step 7: Run a test new controller

code/Mageplaza/HelloWorld/Block/Index.php

@@ -0,0 +1,6 @@
+<?php
+namespace Mageplaza\HelloWorld\Block;
+class Index extends \Magento\Framework\View\Element\Template
+{
+
+}

code/Mageplaza/HelloWorld/Controller/Index/Index.php

@@ -0,0 +1,20 @@
+<?php
+namespace Mageplaza\HelloWorld\Controller\Index;
+
+class Index extends \Magento\Framework\App\Action\Action
+{
+	protected $_pageFactory;
+
+	public function __construct(
+		\Magento\Framework\App\Action\Context $context,
+		\Magento\Framework\View\Result\PageFactory $pageFactory)
+	{
+		$this->_pageFactory = $pageFactory;
+		return parent::__construct($context);
+	}
+
+	public function execute()
+	{
+		return $this->_pageFactory->create();
+	}
+}

code/Mageplaza/HelloWorld/Controller/Index/Test.php

@@ -0,0 +1,21 @@
+<?php
+namespace Mageplaza\HelloWorld\Controller\Index;
+
+class Test extends \Magento\Framework\App\Action\Action
+{
+	protected $_pageFactory;
+
+	public function __construct(
+		\Magento\Framework\App\Action\Context $context,
+		\Magento\Framework\View\Result\PageFactory $pageFactory)
+	{
+		$this->_pageFactory = $pageFactory;
+		return parent::__construct($context);
+	}
+
+	public function execute()
+	{
+		echo "Hello World";
+		exit;
+	}
+}

code/Mageplaza/HelloWorld/etc/frontend/routes.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" ?>
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:App/etc/routes.xsd">
+    <router id="standard">
+        <route frontName="hellomageplaza" id="hellomageplaza">
+            <module name="Mageplaza_HelloWorld"/>
+        </route>
+    </router>
+</config>

code/Mageplaza/HelloWorld/etc/module.xml

@@ -0,0 +1,5 @@
+<?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="Mageplaza_HelloWorld" setup_version="0.0.1">
+    </module>
+</config>

code/Mageplaza/HelloWorld/registration.php

@@ -0,0 +1,6 @@
+<?php
+\Magento\Framework\Component\ComponentRegistrar::register(
+	\Magento\Framework\Component\ComponentRegistrar::MODULE,
+	'Mageplaza_HelloWorld',
+	__DIR__
+);

code/Mageplaza/HelloWorld/view/frontend/layout/hellomageplaza_index_index.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0"?>
+<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="1column" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
+    <referenceContainer name="content">
+        <block class="Mageplaza\HelloWorld\Block\Index" name="hellomageplaza_index_index" template="Mageplaza_HelloWorld::index.phtml" />
+    </referenceContainer>
+</page>

code/Mageplaza/HelloWorld/view/frontend/templates/index.phtml

@@ -0,0 +1 @@
+<h2>Welcome to Mageplaza.com</h2>

etc/config.php

@@ -299,6 +299,7 @@
         'Learning_HelloPage' => 1,
         'Learning_Js' => 1,
         'Luisdev_Helloworld' => 1,
+        'Mageplaza_HelloWorld' => 1,
         'PayPal_Braintree' => 1,
         'PayPal_BraintreeGraphQl' => 1,
         'Pfay_Contacts' => 1,