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File: README.txt

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  Classes of Nikola Posa   Nested Set DB Table   README.txt   Download  
File: README.txt
Role: Documentation
Content type: text/plain
Description: Readme file.
Class: Nested Set DB Table
Manage nested sets of data stored in a database
Author: By
Last change: New version
Date: 13 years ago
Size: 2,247 bytes


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NestedSetDbTable is a abstract class that provides API for managing some table which has data that is organized in "Nested set model" manner. Developers should extend this class in order to use its functionality. Properties $_name (name of the table), $_primary (name of the primary key), $_left (left column name in nested table) and $_right (right column name in nested table) must be overrriden in the extending class and filled with appropriate values. PDO instance must be supplied to the object of this class in order to use it. AUTHOR ------ Nikola Posa <> INSTALLATION ------------ 1. You should put folder, in which you've stored NestedSetDbTable dir, in the include path. Here's an example of how to do that: set_include_path('.' . PATH_SEPARATOR . 'path/to/libs' . PATH_SEPARATOR . get_include_path()); ... where "libs" is name of the folder where you've stored NestedSetDbTable dir. FEATURES -------- * API for managing database table, which has data that is organized in "Nested set model" manner, * Methods for implementing Nested set model, * getTree() method gets whole tree, including depth information, * insert() method enables adding new node at desired position in tree hierarchy, * updateNode() method enables updating data of some node, including its position in tree hierarchy, * deleteNode() method is used for deleting nodes, and it has option for deleting only desired node (without its child nodes), or deleting its child nodes as well USAGE ----- class Categories extends NestedSetDbTable_Abstract { protected $_name = 'categories'; protected $_primary = 'id'; protected $_left = 'left'; protected $_right = 'right'; } $pdo = new PDO('mysql:dbname=test;host=', 'root', ''); //Setting db adapter for all instances of NestedSetDbTable_Abstract class: NestedSetDbTable_Abstract::setDefaultAdapter($pdo); $categories = new Categories(); print_r($categories->getTree()); SYSTEM REQUIREMENTS ------------------- NestedSetDbTable package requires PHP 5 or later, with enabled PDO extension. LICENSE ------- The files in this archive are released under the GNU General Public License. You can find a copy of this license in LICENSE.txt.