93 lines
2.7 KiB
PHP
93 lines
2.7 KiB
PHP
<?php
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/**
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* An abstract base class for the string field types (i.e. Varchar and Text)
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* @package sapphire
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* @subpackage model
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* @author Pete Bacon Darwin
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*
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*/
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abstract class StringField extends DBField {
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protected $nullifyEmpty = true;
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/**
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* Construct a string type field with a set of optional parameters
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* @param $name string The name of the field
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* @param $options array An array of options e.g. array('nullifyEmpty'=>false). See {@link StringField::setOptions()} for information on the available options
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*/
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function __construct($name = null, $options = array()) {
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// Workaround: The singleton pattern calls this constructor with true/1 as the second parameter, so we must ignore it
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if(is_array($options)){
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$this->setOptions($options);
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}
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parent::__construct($name);
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}
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/**
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* Update the optional parameters for this field.
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* @param $options array of options
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* The options allowed are:
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* <ul><li>"nullifyEmpty"
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* This is a boolean flag.
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* True (the default) means that empty strings are automatically converted to nulls to be stored in the database.
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* Set it to false to ensure that nulls and empty strings are kept intact in the database.
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* </li></ul>
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* @return unknown_type
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*/
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function setOptions(array $options = array()) {
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if(array_key_exists("nullifyEmpty", $options)) {
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$this->nullifyEmpty = $options["nullifyEmpty"] ? true : false;
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}
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}
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/**
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* Set whether this field stores empty strings rather than converting them to null
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* @param $value boolean True if empty strings are to be converted to null
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*/
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function setNullifyEmpty($value) {
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$this->nullifyEmpty = ($value ? true : false);
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}
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/**
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* Get whether this field stores empty strings rather than converting them to null
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* @return bool True if empty strings are to be converted to null
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*/
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function getNullifyEmpty() {
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return $this->nullifyEmpty;
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}
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/**
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* (non-PHPdoc)
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* @see core/model/fieldtypes/DBField#hasValue()
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*/
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function hasValue() {
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return ($this->value || $this->value == '0') || ( !$this->nullifyEmpty && $this->value === '');
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}
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/**
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* (non-PHPdoc)
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* @see core/model/fieldtypes/DBField#prepValueForDB($value)
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*/
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function prepValueForDB($value) {
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if ( !$this->nullifyEmpty && $value === '' ) {
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return "'" . Convert::raw2sql($value) . "'";
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} else {
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return parent::prepValueForDB($value);
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}
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}
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/**
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* Return another DBField object with this value in lowercase.
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*/
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function Lower() {
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return DBField::create(get_class($this), strtolower($this->value), $this->name);
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}
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/**
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* Return another DBField object with this value in uppercase.
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*/
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function Upper() {
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return DBField::create(get_class($this), strtoupper($this->value), $this->name);
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}
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}
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