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Pro Drupal Development

Pro Drupal Development

von: John VanDyk

Apress, 2008

ISBN: 9781430209904 , 704 Seiten

2. Auflage

Format: PDF, OL

Kopierschutz: DRM

Windows PC,Mac OSX Apple iPad, Android Tablet PC's Online-Lesen für: Windows PC,Mac OSX,Linux

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Pro Drupal Development


 

Contents at a Glance

5

Contents

7

Foreword

25

About the Author

26

About the Technical Reviewer

27

Acknowledgments

28

Introduction

29

How Drupal Works

30

What Is Drupal?

30

Technology Stack

30

Core

31

Administrative Interface

32

Modules

32

Hooks

33

Themes

34

Nodes

34

Blocks

35

File Layout

35

Serving a Request

37

Summary

40

Writing a Module

41

Creating the Files

41

Implementing a Hook

43

Adding Module- Specific Settings

44

Adding the Data Entry Form

47

Defining Your Own Administration Section

55

Presenting a Settings Form to the User

57

Validating User- Submitted Settings

59

Storing Settings

60

Further Steps

62

Summary

62

Hooks, Actions, and Triggers

63

Understanding Events and Triggers

63

Understanding Actions

65

Using the Context in Actions

75

Examining the Context

79

How Actions Are Stored

80

Calling an Action Directly with actions_ do()

81

Defining Your Own Triggers with hook_ hook_ info()

82

Adding Triggers to Existing Hooks

84

Summary

86

The Menu System

87

Callback Mapping

87

Menu Nesting

97

Access Control

98

Title Localization and Customization

99

Wildcards in Menu Items

103

Altering Menu Items from Other Modules

108

Altering Menu Links from Other Modules

110

Kinds of Menu Items

110

Common Tasks

111

Using menu. module

115

Common Mistakes

115

Summary

116

Working with Databases

117

Defining Database Parameters

117

Understanding the Database Abstraction Layer

117

Connecting to the Database

119

Performing Simple Queries

120

Retrieving Query Results

122

The Schema API

123

Inserts and Updates with drupal_ write_ record()

134

Exposing Queries to Other Modules with hook_ db_ rewrite_ sql()

136

Connecting to Multiple Databases Within Drupal

139

Using a Temporary Table

140

Writing Your Own Database Driver

140

Summary

141

Working with Users

143

The $ user Object

143

Introduction to hook_ user()

146

The User Registration Process

149

The Login Process

152

External Login

157

Summary

164

Working with Nodes

165

So What Exactly Is a Node?

165

Not Everything Is a Node

168

Creating a Node Module

168

How Nodes Are Stored

185

Creating a Node Type with CCK

186

Restricting Access to Nodes

187

Summary

191

The Theme System

192

Theme System Components

192

Installing a Theme

195

Building a PHPTemplate Theme

196

Understanding Template Files

203

Advanced Drupal Theming

221

Summary

228

Working with Blocks

229

What Is a Block?

229

Block Configuration Options

230

Block Placement

232

Defining a Block

232

Building a Block

236

Enabling a Block When a Module Is Installed

244

Block Visibility Examples

244

Summary

245

The Form API

246

Understanding Form Processing

246

Creating Basic Forms

254

Form API Properties

277

Summary

298

Manipulating User Input: The Filter System

299

Filters

299

Filters and Input Formats

300

Creating a Custom Filter

306

Protecting Against Malicious Data

312

Summary

313

Searching and Indexing Content

314

Building a Custom Search Page

314

Using the Search HTML Indexer

322

Summary

331

Working with Files

332

How Drupal Serves Files

332

PHP Settings

334

Media Handling

335

File API

336

Summary

349

Working with Taxonomy

350

What Is Taxonomy?

350

Kinds of Taxonomy

354

Viewing Content by Term

356

Storing Taxonomies

358

Module- Based Vocabularies

360

Common Tasks

363

Taxonomy Functions

365

Additional Resources

371

Summary

371

Caching

372

Knowing When to Cache

372

How Caching Works

373

How Caching Is Used Within Drupal Core

374

Summary

387

Sessions

388

What Are Sessions?

388

Usage

389

Session- Related Settings

390

Storage

392

Session Life Cycle

393

Session Conversations

395

Common Tasks

396

Summary

398

Using jQuery

399

What Is jQuery?

399

The Old Way

400

How jQuery Works

401

jQuery Within Drupal

403

Building a jQuery Voting Widget

415

Next Steps

427

Summary

427

Localization and Translation

428

Enabling the Locale Module

428

User Interface Translation

428

Starting a New Translation

441

Installing a Language Translation

445

Right- to- Left Language Support

447

Language Negotiation

448

Content Translation

453

Localization- and Translation- Related Files

458

Additional Resources

458

Summary

459

XML-RPC

460

What Is XML- RPC?

460

Prerequisites for XML- RPC

460

XML- RPC Clients

461

A Simple XML- RPC Server

466

Built- In XML- RPC Methods

470

Summary

472

Writing Secure Code

473

Handling User Input

473

Handling URLs Securely

480

Making Queries Secure with db_ query()

481

Keeping Private Data Private with db_ rewrite_ sql()

485

Dynamic Queries

486

Permissions and Page Callbacks

487

Cross- Site Request Forgeries ( CSRF)

488

File Security

488

Encoding Mail Headers

491

Protecting cron. php

492

SSL Support

492

Stand- Alone PHP

493

AJAX Security

494

Form API Security

494

Protecting the Superuser Account

495

Using eval()

496

Summary

496

Development Best Practices

497

Coding Standards

497

PHP Comments

503

Checking Your Coding Style Programmatically

507

Finding Your Way Around Code with egrep

508

Taking Advantage of Version Control

510

Creating and Applying Patches

520

Maintaining a Module

521

Mixing SVN with CVS for Project Management

538

Testing and Developing Code

539

The Module Builder Module

542

Application Profiling and Debugging

542

Summary

544

Optimizing Drupal

546

Finding the Bottleneck

546

Drupal- Specific Optimizations

555

Architectures

561

Summary

564

Installation Profiles

565

Where Profiles Are Stored

565

How Installation Profiles Work

566

Summary

589

Database Table Reference

590

access ( user module)

590

accesslog ( statistics module)

590

actions ( trigger module)

591

actions_ aid ( trigger module)

591

aggregator_ category ( aggregator module)

592

aggregator_ category_ feed ( aggregator module)

592

aggregator_ category_ item ( aggregator module)

592

aggregator_ feed ( aggregator module)

592

aggregator_ item ( aggregator module)

593

authmap ( user module)

593

batch ( batch. inc)

594

blocks ( block module)

594

blocks_ roles ( block module)

595

book ( book module)

595

boxes ( block module)

596

cache

596

cache_ block ( block module)

596

cache_ filter ( filter module)

597

cache_ form

597

cache_ menu

598

cache_ page

598

cache_ update

599

comments ( comment module)

599

contact ( contact module)

600

files ( upload module)

600

filter_ formats ( filter module)

601

filters ( filter module)

601

flood ( contact module)

601

forum ( forum module)

602

history ( node module)

602

languages ( locale module)

602

locales_ source ( locale module)

603

locales_ target ( locale module)

603

menu_ custom ( menu module)

603

menu_ links ( menu module)

604

menu_ router

605

node ( node module)

606

node_ access ( node module)

607

node_ comment_ statistics ( comment module)

608

node_ counter ( statistics module)

608

node_ revisions ( node module)

608

node_ type ( node module)

609

openid_ association ( openid module)

610

permission ( user module)

610

poll ( poll module)

611

poll_ choices ( poll module)

611

poll_ votes ( poll module)

611

profile_ fields ( profile module)

612

profile_ values ( profile module)

612

role ( user module)

613

search_ dataset ( search module)

613

search_ index ( search module)

613

search_ node_ links ( search module)

614

search_ total ( search module)

614

sessions

614

system

615

term_ data ( taxonomy module)

616

term_ hierarchy ( taxonomy module)

616

term_ node ( taxonomy module)

616

term_ relation ( taxonomy module)

616

term_ synonym ( taxonomy module)

617

trigger_ assignments ( trigger module)

617

upload ( upload module)

617

url_ alias ( path module)

618

users ( user module)

618

users_ roles ( users)

619

variable

619

vocabulary ( taxonomy module)

620

vocabulary_ node_ types ( taxonomy module)

620

watchdog ( dblog module)

621

Resources

622

Code

622

Handbooks

623

Forums

623

Mailing Lists

623

User Groups and Interest Groups

625

Internet Relay Chat

625

Videocasts

626

Weblogs

626

Conferences

626

Contribute

627

Index

628