Pro PHP and jQuery by Jason Lengstorf.pdf - Computer Science ...

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130 CHAPTER 4 ■ BUILD AN EVENTS CALENDAR } ?> * @param object $dbo a database object * @param string $useDate the date to use to build the calendar * @return void */ public function __construct($dbo=NULL, $useDate=NULL) { } The constructor will accept two optional parameters: the first is a database object, and the second is the date around which the calendar display should be built. Checking the Database Connection To function properly, the class needs a database connection. The constructor will call the parent constructor from DB_Connect to check for an existing database object and use that when available, or it will create a new object if none is supplied. Set up the call to make this check using the code shown in bold:
} ?> CHAPTER 4 ■ BUILD AN EVENTS CALENDAR ■ Note That the Calendar class constructor accepts an optional $dbo argument that is passed in turn to the DB_Connect constructor. This allows you to create a database object and pass it for use in the class easily. Creating a File to Store Database Credentials To keep the database credentials separate from the rest of the application for easy maintenance, you want to use a configuration file. Create a new file called db-cred.inc.php in the config folder (/sys/config/db-cred.inc.php). Inside, create an array called $C (for constants), and store each piece of data as a new key-value pair: 131
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THE EXPERT’S VOICE ® IN OPEN SOU
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ii Pro PHP and jQuery Copyright ©
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iv Contents at a Glance ■About th
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vi ■ CONTENTS Understanding jQuer
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viii ■ CONTENTS Summary .........
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x ■ CONTENTS ■Chapter 9: Perfor
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xii About the Author ■ Jason Leng
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xiv Acknowledgments I feel like I s
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C H A P T E R 1 ■ ■ ■ Introdu
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CHAPTER 1 ■ INTRODUCING JQUERY Th
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SETTING UP A LOCAL TESTING ENVIRONM
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google.load("jquery", "1.4.2");
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Basic Selectors CHAPTER 1 ■ INTRO
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Only one paragraph in our document
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$(".foo+p"); CHAPTER 1 ■ INTRODUC
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$("p:odd"); [ p.foo, p#bar ] Select
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$("p:parent"); [ p, p.foo, p, p#bar
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which returns the following in the
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Selecting Only Enabled or Disabled
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26 CHAPTER 2 ■ COMMON JQUERY ACTI
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Page 135 and 136: C H A P T E R 4 ■ ■ ■ Build a
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180 CHAPTER 5 ■ ADD CONTROLS TO C
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200 CHAPTER 6 ■ PASSWORD PROTECTI
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P A R T 3 ■ ■ ■ Combining jQu
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236 CHAPTER 7 ■ ENHANCING THE USE
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264 CHAPTER 8 ■ EDITING THE CALEN
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P A R T 4 ■ ■ ■ Advancing jQu
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312 CHAPTER 9 ■ PERFORMING FORM V
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C H A P T E R 10 ■ ■ ■ Extend
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$.validDate = function(date, option
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Modifying the Initialization Script
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Adding Methods to jQuery CHAPTER 10
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over, then returns it to its origin
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CHAPTER 10■ EXTENDING JQUERY ■
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Defines default values for the plug
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}); // Loads the event data from th
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■ ■ ■ Index ■ Special Chara
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■ C Calendar app JavaScript initi
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saving new calendar events in addin
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:eq( ) method, 17, 20, 26-27 equals
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eginning of string, 324 character c
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asic selectors in by class name, 12
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.die( ) method, 75-76 .error( ) met
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.parents( ) method, 33 .parentsUnti
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overview, 328 regex pattern to vali
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