/tanora.org/www/framework/system/field.php

<?php
/**
 * File: framework/system/field.php
 *
 * Defines the base class for all Field objects in an ORM.
 */

abstract class Field {
	
	protected $db;
	
	protected $column;
	protected $input;
	
	protected $name;
	protected $value;
	protected $primary;
	protected $unique;
	
	/**
	 * Sets the database member variable and the column definition.
	 */
	function __construct(&$db) {
		$this->db = $db;
	}
	
	/**
	 * Sets the name member variable.
	 */
	public function set_name($value) {
		$this->name = $value;
		$this->input->set_name($this->name);
	}
	
	/**
	 * Gets the name member variable.
	 */
	public function get_name() {
		return $this->name;
	}
	
	/**
	 * Returns a boolean of whether or not the value has been set.
	 */
	public function has_value() {
		return isset($this->value);
	}
	
	/**
	 * Returns the value.
	 */
	public function get_value() {
		return $this->value;
	}
	
	/**
	 * Returns the column.
	 */
	public function get_column() {
		return $this->column;
	}
	
	/**
	 * Sets the value.
	 */
	public function set_value($value) {
		$this->value = $value;
	}
	
	/**
	 * Sets the primary member variable.
	 */
	public function set_primary() {
		$this->primary = TRUE;
	}
	
	/**
	 * Returns true if set_primary member variable is TRUE.
	 */
	public function is_primary() {
		return $this->primary === TRUE;
	}
	
	/**
	 * Sets the unique member variable.
	 */
	public function set_unique() {
		$this->unique = TRUE;
	}
	
	/**
	 * Returns true if set_unique member variable is TRUE.
	 */
	public function is_unique() {
		return $this->unique === TRUE;
	}
	
	/**
	 * Returns a reference the input member variable.
	 */
	public function get_input() {
		return $this->input;
	}
	
	/**
	 * Sets the input value and returns the reference.
	 */
	protected function _input($type) {
		// array of files in order of priority they should be checked
		$paths = array(INPUT_PATH, FRAMEWORK_PATH.'inputs/');
		require_once(FRAMEWORK_PATH.'system/input.php');
		foreach($paths as $dir) {
			$file = $dir.strtolower($type).'input.php';
			if(file_exists($file)) {
				require_once($file);
				$class = $type.'Input';
				$this->input = new $class();
				return $this->input;
			}
		}
		Framework::error('Cannot load input: '.$type);
	}
	
	/**
	 * Sets the column member variable.
	 */
	protected function _column($type) {
		// array of files in order of priority they should be checked
		$paths = array(COLUMN_PATH, FRAMEWORK_PATH.'columns/');
		require_once(FRAMEWORK_PATH.'system/column.php');
		foreach($paths as $dir) {
			$file = $dir.strtolower($type).'column.php';
			if(file_exists($file)) {
				require_once($file);
				$class = $type.'Column';
				$this->column = new $class($this->db, $this);
				return $this->column;
			}
		}
		Framework::error('Cannot load column: '.$type);
	}
}

?>