TASK: Install new example extension

CodeExamples/.gitignore

@@ -0,0 +1,3 @@
+/private/
+/public/
+/vendor/

CodeExamples/composer.json

@@ -0,0 +1,46 @@
+{
+    "repositories": [
+        {
+            "type": "path",
+            "url": "localPackages/*"
+        },
+        {
+            "type": "composer",
+            "url": "https://composer.typo3.org/"
+        }
+    ],
+    "name": "website/typo3-extension-workshop",
+    "description": "Example TYPO3 installation for workshop",
+    "license": "GPL-2.0-or-later",
+    "require": {
+        "helhum/typo3-console": "^4.9.3 || ^5.2",
+        "helhum/typo3-secure-web": "^0.2.7",
+        "typo3-console/composer-auto-commands": "^0.2.0",
+        "typo3/cms-about": "^8.7.17",
+        "typo3/cms-belog": "^8.7.17",
+        "typo3/cms-beuser": "^8.7.17",
+        "typo3/cms-fluid-styled-content": "^8.7.17",
+        "typo3/cms-info": "^8.7.17",
+        "typo3/cms-info-pagetsconfig": "^8.7.17",
+        "typo3/cms-rte-ckeditor": "^8.7.17",
+        "typo3/cms-setup": "^8.7.17",
+        "typo3/cms-t3editor": "^8.7.17",
+        "typo3/cms-tstemplate": "^8.7.17",
+        "workshop/example-extension": "@dev"
+    },
+    "require-dev": {
+        "typo3/cms-lowlevel": "^8.7.17"
+    },
+    "extra": {
+        "typo3/cms": {
+            "root-dir": "private",
+            "web-dir": "public"
+        },
+        "helhum/typo3-console": {
+            "comment": "This option is not needed ay more for helhum/typo3-console 5.x",
+            "install-extension-dummy": false
+        }
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true
+}

CodeExamples/localPackages/example_extension/composer.json

@@ -0,0 +1,17 @@
+{
+    "name": "workshop/example-extension",
+    "description": "Example for TYPO3 Extension Workshop.",
+    "type": "typo3-cms-extension",
+    "license": "GPL-2.0-or-later",
+    "authors": [
+        {
+            "name": "Daniel Siepmann",
+            "email": "coding@daniel-siepmann.de"
+        }
+    ],
+    "autoload": {
+        "psr-4": {
+            "Workshop\\ExampleExtension\\": "Classes"
+        }
+    }
+}

CodeExamples/localPackages/example_extension/ext_emconf.php

@@ -0,0 +1,18 @@
+<?php
+
+$EM_CONF['example_extension'] = [
+    'title' => 'Example extension',
+    'description' => 'Example for TYPO3 Extension Workshop.',
+    'category' => 'example',
+    'version' => '1.0.0',
+    'state' => 'stable',
+    'author' => 'Daniel Siepmann',
+    'author_email' => 'coding@daniel-siepmann.de',
+    'author_company' => 'Codappix',
+    'constraints' => [
+        'depends' => [
+            'typo3' => '8.7.0-8.7.999',
+            'php' => '7.0.0-7.2.999',
+        ],
+    ],
+];

Documentation/source/Extension.rst

@@ -1,11 +1,72 @@
 Extension
 =========
 
+First of all we have to understand what an extension is, in the context of TYPO3 CMS.
+
 What is an extension?
 ---------------------
 
+See :ref:`t3coreapi:extension-architecture` in TYPO3 Core API Reference.
+
+TYPO3 is built only with extensions, there is no framework below. All features are
+assigned to a specific extension. This way it's possible to build the TYPO3 that fits
+the project needs.
+
+An extension is something like `frontend` or `backend`, which provides the TYPO3
+frontend or backend. It can also be `extbase` or `fluid` which provides and Framework
+to build further extensions or an template engine.
+
+Nowadays most installations also have a `site_` or `sitepackage` extensions, which
+encapsulates the systems configuration and resources like assets and templates. Thus
+an TYPO3 extension is the same as an composer package.
+
+In this workshop we will concentrate of a "typical" extension that will provide a
+plugin and custom record types. This can be installed into any compatible TYPO3
+installation. A new record type will be added, which can be edited in the TYPO3
+backend. Also a new plugin will be added which can be added as a content element and
+displayed in frontend.
+
 Structure of an extension
 -------------------------
 
+.. code-block:: plain
+
+   extension_key
+   ├── Classes
+   │   ├── Command
+   │   │   └── ExampleCommandController.php
+   │   ├── Controller
+   │   │   └── ExampleController.php
+   │   └── Domain
+   │       └── Model
+   │           └── Example.php
+   ├── composer.json
+   ├── Configuration
+   │   ├── TCA
+   │   │   └── Overrides
+   │   │       └── tt_content.php
+   │   └── TypoScript
+   │       ├── constants.typoscript
+   │       └── setup.typoscript
+   ├── Documentation
+   ├── ext_conf_template.txt
+   ├── ext_emconf.php
+   ├── ext_localconf.php
+   ├── ext_tables.php
+   ├── readme.rst
+   └── Resources
+       └── Private
+           └── Templates
+               └── Search
+                   └── Search.html
+
+See :ref:`t3coreapi:extension-files-locations` in TYPO3 Core API Reference.
+
 Further resources
 -----------------
+
+* :ref:`t3coreapi:extension-architecture` in TYPO3 Core API Reference.
+
+* :ref:`t3coreapi:extension-files-locations` in TYPO3 Core API Reference.
+
+* https://docs.typo3.org/typo3cms/ExtbaseFluidBook/Index.html

Documentation/source/StartNewExtension.rst

@@ -4,11 +4,59 @@ Start new extension
 Necessary files
 ---------------
 
+The only necessary file is :file:`ext_emconf.php`. This configures the *Extension
+Manager*. Without this file, the Extension Manager would not recognize the extension
+and would prevent installation.
+
+.. literalinclude:: ../../CodeExamples/localPackages/example_extension/ext_emconf.php
+   :language: php
+
+See :ref:`t3coreapi:extension-declaration` in TYPO3 Core API Reference.
+
+.. admonition:: Task
+
+   So let's create a new folder and add the file.
+
 Install extension
 -----------------
 
+Once we have created the first extension, we need to install the extension. There are
+two ways for a local extension. Either placing the extension inside the installation,
+or via composer.
+
+.. admonition:: Task
+
+   Install the new extension.
+
+Oldschool
+^^^^^^^^^
+
+Copy the extension to :file:`typo3conf/ext/`, and head over to *Extension Manager* to
+activate the extension.
+
 Via Composer
 ^^^^^^^^^^^^
 
-Oldschool
-^^^^^^^^^
+The following project setup is suggested:
+
+.. code-block:: text
+
+   .
+   ├── composer.json
+   └── localPackages
+       └── example_extension
+
+:file:`composer.json`:
+
+.. literalinclude:: ../../CodeExamples/composer.json
+   :language: json
+
+In this case, we also need a :file:`composer.json` inside our extension, to make the
+extension an composer package and allow the installation:
+
+:file:`composer.json`:
+
+.. literalinclude:: ../../CodeExamples/localPackages/example_extension/composer.json
+   :language: json
+
+Thanks due ``typo3-console/composer-auto-commands`` our extension is activated already.

Documentation/source/conf.py

@@ -306,4 +306,6 @@ texinfo_documents = [
 
 
 # Example configuration for intersphinx: refer to the Python standard library.
-intersphinx_mapping = {'https://docs.python.org/': None}
+intersphinx_mapping = {
+    't3coreapi': ('https://docs.typo3.org/typo3cms/CoreApiReference/', None),
+}

Documentation/source/index.rst

@@ -1,10 +1,14 @@
 Welcome to TYPO3 Extension Workshop
 ===================================
 
-Topics:
+This workshop is about the basics of TYPO3 extensions.
+
+We will cover the following topics during the workshop, to build a foundation to
+build custom extensions.
 
 .. toctree::
    :maxdepth: 2
+   :numbered:
 
    Extension
    StartNewExtension