CMS Made Simple Development Cookbook

CMS Made Simple Development Cookbook

Overview of this book

CMS Made Simple has great capabilities “out of the box,” but one of its great strengths is the ease of extending those capabilities. You can add a surprising amount of functionality just by customizing the core modules, but once you learn to write your own tags and modules, your ability to add features is virtually limitless.CMS Made Simple Development Cookbook will show you how to use custom PHP code to extend the power and features of CMS Made Simple, and make it do exactly what you want. This easy to use guide contains clear recipes that introduce the key concepts behind each approach to extending the CMS, while also providing examples of solutions to real-world problems.You will learn the differences between the various kinds of tags and modules in the CMS Made Simple environment, and to which purposes each is best fit. Each technology is then explored in detail with a series of practical recipes and examples.You will not only learn the basics of creating tags and modules, but you will explore the underlying APIs that you will use to solve real-world website problems. You will become proficient with the database and form APIs, so that the code you write is portable and maintainable. You'll learn to localize your code and use templates to add its flexibility. You'll master the safe handling of parameters and the creation of secure code. You’ll be familiar with the CMS Made Simple Developer's Forge, and how you can use it in conjunction with revision control as a community-focused code management system, complete with web-based bug tracking and feature requests. You will learn to code complex interactions between modules, both directly and via the creation and handling of events. You will gain exposure to an array of advanced tips and tricks, along with commentary from the distilled experience of someone who has written dozens of modules. The CMS Made Simple Developer's Cookbook offers an amazing wealth of knowledge in approachable, bite-sized recipes. Whether you're new to the CMS or an old hand, you're sure to find valuable tips and information that will have you creating a richer CMS.

CMS Made Simple Development Cookbook

Credits

About the Author

About the Reviewers

www.PacktPub.com

Preface

Free Chapter

Understanding CMS Extensions

Introduction

Will a User-Defined Tag solve my problem?

Will a Tag Solve My Problem?

Will a Module solve my problem?

Create a "Hello World" User-Defined Tag

Create a "Hello World" Tag

Create a "Hello World" Module

Using CMS in Debug Mode

Programming with Smarty and Core Modules

Introduction

Using Smarty to create a color set in your stylesheet

Using Smarty to do the math in your stylesheet

Getting the Most out of Tags and User-Defined Tags

Introduction

Displaying the User's IP address from a User-Defined Tag

Using the CmsObject and the current content object in a User-Defined Tag

Making a variable available to Smarty

Displaying the number of pages in the CMS using a User-Defined Tag

Using URL parameters safely in a User-Defined Tag

Using Smarty values as inputs in a User-Defined Tag

Displaying stock prices from Yahoo with a User-Defined Tag

Displaying a translation of the current page using Babelfish with a User-Defined Tag

Posting an article to the News Module when the Admin adds a new Group

Reversing a string in two ways using a Smarty Modifier

Adding registered trademark symbols to a name automatically

Getting Started with Modules

Introduction

Creating the file structure for a module

Creating a new module stub using the Skeleton module

Creating a new module stub using the ModuleMaker module

Breaking a module into multiple files

Making a module localizable

Using the Database API

Introduction

Creating a database table when a module gets installed

Creating a database index when creating a table

Making a database query from a module

Creating and using a database sequence

Altering a database table when a module gets upgraded

Cleaning up when a module is uninstalled

Using the Module Form API

Introduction

Creating a basic form in a module

Restricting and sanitizing parameters to a module

Using debug_display or error_log to see what parameters your module is receiving

Your Module and the Community

Introduction

Creating an account on the CMS Made Simple Developer's Forge

Adding your module to the Forge

Creating your Subversion Repository

Using Subversion while developing your module

Publishing a module release

Creating your Git repository

Using Git while developing your module

Deciding on Git versus Subversion

Creating Useful Admin Panels

Introduction

Creating an admin panel for your module

Creating multiple tabs for your admin module

Creating and enforcing new permissions for your module's administration

Displaying a page in the CMS Admin without the surrounding theme

Writing a line to the CMS Admin Log

Displaying a message after installation

Creating an admin-side input element from your module using a ContentModule block

Hiding your module from Administrators who don't have permission to use it

Creating a module-specific preference and admin panel to set it

Displaying an alert in the CMS Admin from a module

Using Events

Introduction

Attaching a User-Defined Tag to an event

Finding what parameters an event passes using a User Defined Tag

Advanced Module Tricks and SEO

Introduction

Overriding Module strings or layout

Making your module's data available to CMS Site Search

Outputting a downloadable CSV file from your module

Setting special diagnostic messages for debug mode

Using Pretty URLs in your module

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Creating an admin-side input element from your module using a ContentModule block

CMS Made Simple is designed primarily for managing what is known as "unstructured" page-oriented content — free-form content, as opposed to "structured" content, which is more strictly controlled, record-oriented data. Still, modules allow you to create, manage, and display tightly structured content, using their own custom interfaces. There's a third possibility, which is using content blocks, that is a way that modules can add structured data fields to an otherwise unstructured page.

This recipe gives an example of adding two structured fields to pages using the content block API.

How to do it...

1. Use SSH to connect to your server.
2. Change your working directory to the modules directory of your CMS Made Simple installation directory, for example:
```
cd /var/www/mysite-root/modules
```
3. Create a top level module directory:
```
mkdir DreamCars
```
4. Open your favorite text editing program, and create a new file.
5. Type...

CMS Made Simple Development Cookbook

CMS Made Simple Development Cookbook

Overview of this book

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CMS Made Simple Development Cookbook

Creating an admin-side input element from your module using a ContentModule block

How to do it...