[PACKT] open source^ Kohana 3.0. Beginner's Guide. Develop professional web applications with Kohana. Jason D. Straughan

Transcription

1 Kohana 3.0 Beginner's Guide Develop professional web applications with Kohana Jason D. Straughan [PACKT] open source^ community experience distilled publishing"1 BIRMINGHAM MUMBAI

2 Table of Contents Preface 1 Chapter 1: Getting Started n System requirements 12 Case Study 12 Downloading and installing from the Web 13 Downloading from web 13 Installing Kohana from GitHub 14 downloading using Git 14 Advanced installation with Git 17 Taking inventory 18 Preparing the Filesystem 19 Testing the environment 20 Configuring Kohana for Development Environment 22 Setting your Timezone 22 Configuring URL settings 23 setting base URL 23 Setting up the Application Environment 24 Setting Kohana::$environment 24 Enabling modules 25 Time for action Enabling the User Guide 25 Creating a default config file 26 Server configuration 27 Configuring Apache 27 Configuring nginx 28 Testing your configuration 28 Summary 31

3 Passing Setting Table of Contents Chapter 2: Using Views and Controllers 33 What are controllers and views? 34 Anatomy of a view 34 Anatomy of a controller 35 Updating our Welcome Controller 37 Getting our controller action to use a view file 37 Passing data to the view 38 Using the factory() method 39 Passing data via the factory method 39 Using view variables 40 Passing data as view variables 40 Using the set() method 41 data using the set() method 41 Using the bind() method 42 Passing data using the bind() method 42 Putting it all together 44 Passing data using multiple methods 44 Using the Template Controller 46 Extending Kohana's Template Controller 46 Examining the Template controller 48 Setting global view variables 50 global view variables 50 Binding global view variables 52 Time for action Binding global view variables 53 Beyond the Welcome Controller 53 Creating new controllers 54 Creating our first controller 54 Expanding on our first controller 55 Creating a base controller 58 Creating an abstract controller 58 Putting it all together 60 Adding stylesheets to template 61 Adding structure to view files 65 Adding header and footer view files 65 Summary 68 Chapter 3; Routing and Request Handling 69 Hierarchy is King in Kohana 70 Cascading filesystem 70 Request flow in Kohana 72 Using the Request object 74

4 Creating Table ofcontents Creating a profile page to render messages 76 Creating a profile page with messages 77 Calling a new request inside a request 79 Creating a request within a request 79 Routing in Kohana 83 Making profiles dynamic using ID 84 Creating friendly URLs using custom routes 86 a Custom Route 86 Making routes explicit 88 Adding regex to a route 88 Allowing additional data in a URI 89 Allowing additional segments in a route 89 Using subdirectories with routes 90 Using Subdirectories and Routes 91 Summary 93 Chapter 4: Working with Helpers and Classes 95 Autoloading classes 96 Introducing helpers 96 The Date class 97 The HTML Class 98 The HTML::chars() method 99 The HTML::obfuscate() method 99 The HTML::anchor() method 100 The HTML::image() method 101 The HTML::mailto() method 101 The Inflector Class 101 The URL class 103 The URL::title() method 103 The URL::base() method 103 The URL::query() method 104 The Arr (Array) Class 104 The Arr::get() method 105 The Arr::extract() method 105 The Arr::pluck() method 105 The Arr::merge() method 106 The Arr::overwrite() method 107 The Arr::flatten() method 108 The Arr::unshift() method 109 The Arr::map() method 109 The Arr::is_array() method 110 The Arr::range() method 110 The Cookie class 111 The Encrypt (Encryption) Class 112 Creating configuration for Encryption 113 Mill

5 Creating Creating Installing Table of Contents The Feed Class 115 The Form Class 118 a login form using the Form helper class 119 Creating a signup form for new users 122 Extending Helpers 127 Transparent Class Extension 127 Extending the HTML helper method 127 Creating your own helpers 130 Summary 130 Chapter 5: Installing and Configuring Modules 131 Anatomy of a Module 131 Loading and configuring modules 132 Bundled modules 133 User guide module 134 Image module 135 oauth module 138 Database and ORM modules 138 Configuring your application to use a database 139 a database table and using the query builder 141 Pagination module 145 Adding pagination to database results 146 Auth module 151 Code Bench module 152 Cache and Unit Test modules 153 Installing modules 153 Installing modules from source files 153 a module from an archive 154 Installing modules via Git 156 Installing a module using git 156 Creating your own modules 159 Summary 160 Chapter 6; Interacting with the Database : 161 Anatomy of a model 161 Creating models 162 Using the Database module 163 Configuring the Database module 163 Creating and running queries 165 Using the Query Builder 169 Select statements 169 Using results 175 Ihrl

6 Refactoring Adding Updating Adding Table of Contents Model_Message to allow dynamic search 179 Insert statements 185 the ability to insert messages in case study site 185 Updating statements 192 Add ability to edit messages in case study site 193 Delete statements 201 Add ability to delete messages from the case study site 202 Other fu notions and expressions 209 Using the Database Module with sessions 211 Configuring database sessions 211 Adding session handling with the database adapter 211 Using Database Sessions 212 Summary 213 Chapter 7: Using the ORM and Auth Modules 215 Using the ORM module 215 Setting up the ORM module 216 Convention over configuration 216 ORM API Overview 217 Message Model to use ORM 224 ORM, Forms, and Validation 230 The Validation class 230 validation to Message Model 234 ORM and Relational Data 238 Using the Auth module 241 Configuring the Auth module 241 Adding users and Auth to case study site 241 Implementing the Auth module 243 Adding the Auth functionality to the case study site 244 Securing controllers and actions 258 Adding secure actions to the case study site 258 Summary 262 Chapter 8; Troubleshooting and Error Handling 263 Debugging code with Kohana 263 Debugging with the Kohana class 264 Error and exception handling 268 Adding error messages to signup form 269 Disabling the error handler 272 Viewing the error logs 273 Handling 404 redirects 273 Adding a custom 404 page 274 Profiling our applications 277 V

7 Table of Contents Adding profiling to the case study project 278 Summary 281 Chapter 9; Securing and Deploying Kohana Securing our applications 283 XSS attacks 284 Securing against XSS risks 285 SQL injection 288 Cookies and sessions 289 Securing cookies 289 Securing sessions 291 Configuring the application environment 292 Preparing for production 294 Removing unnecessary files 295 Directory structure considerations 295 Multiple Application Configuration 297 Updating the Configuration settings 298 Summary 299 Appendix: Upgrading from Codelgniter and Kohana 2 3_01 What makes Kohana different from Codelgniter? 302 Moving from Codelgniter to Kohana 304 Autoloading classes 304 Strict PHP 5 codebase 304 Included ORM 304 Modules 305 Moving from Kohana 2.x 305 GET and POST methods 306 Directory structure 306 Naming conventions 307 Views 308 Updated ORM 308 Routing and requests 310 Upgrading from Kohana 3.0 to Request and response classes 312 Security enhancements 313 Bootstrapping and the front controller 313 Validation library 314 Other changes 314 Index 3J7 Ivil