diff options
Diffstat (limited to 'framework/DataAccess/SQLMap/Configuration')
| -rw-r--r-- | framework/DataAccess/SQLMap/Configuration/TSqlMapConditionalTag.php | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/framework/DataAccess/SQLMap/Configuration/TSqlMapConditionalTag.php b/framework/DataAccess/SQLMap/Configuration/TSqlMapConditionalTag.php new file mode 100644 index 00000000..114bd024 --- /dev/null +++ b/framework/DataAccess/SQLMap/Configuration/TSqlMapConditionalTag.php @@ -0,0 +1,176 @@ +<?php + +/** + * TSqlMapConditionalTag class. + * + * @author Wei Zhuo <weizhuo[at]gmail[dot]com> + * @version : $ Wed Jun 7 07:57:22 EST 2006 $ + * @package System.DataAccess.SQLMap.Configuration + * @since 3.0 + */ +class TSqlMapConditionalTag extends TComponent +{ + public static $ConditionalChecks = array + ( + 'isEqual', 'isNotEqual', + 'isGreaterThan', 'isGreaterEqual', + 'isLessThan', 'isLessEqual' + ); + + public static $UnaryChecks = array + ( + 'isNull', 'isNotNull', + 'isEmpty', 'isNotEmpty' + ) + + public static $ParameterChecks = array + ( + 'isPropertyAvailable', 'isPropertyNotAvailable', + 'isParameterPresent', 'isParameterNotPresent' + ) + + private $_tagName; + private $_prepend=''; + private $_property; + private $_propertyType = 'string'; + private $_compareProperty; + private $_compareValue; + + public function getTagName(){ return $this->_tagName; } + public function setTagName($value){ $this->_tagName = $value; } + + public function getPrepend(){ return $this->_prepend; } + public function setPrepend($value){ $this->_prepend = $value; } + + public function getProperty(){ return $this->_property; } + public function setProperty($value){ $this->_property = $value; } + + public function getCompareProperty(){ return $this->_compareProperty; } + public function setCompareProperty($value){ $this->_compareProperty = $value; } + + public function getCompareValue(){ return $this->_compareValue; } + public function setCompareValue($value){ $this->_compareValue = $value; } + + public function getPropertyType(){ return $this->_propertyType; } + public function setPropertyType($value){ $this->_propertyType = $value; } + + /** + * Evaluates the conditional tag, return true if satisfied, false otherwise. + * @param object current conditional tag context. + * @param object query parameter object. + * @return boolean true if conditions are met, false otherwise. + */ + public function evaluate($context, $parameter) + { + $value = $this->getPropertyValue($parameter, $this->getProperty()); + if(in_array($this->getTagName(), self::$UnaryChecks)) + return $this->evaluateUnary($context, $value); + else if(in_array($this->getTagName(), self::$ConditionalChecks)) + { + $comparee = $this->getComparisonValue($parameter) + return $this->evaluateConditional($context, $value, $comparee); + } + else + return $this->evaluateParameterCheck($context, $parameter); + } + + protected function evaluateUnary($context, $value) + { + switch($this->getTagName()) + { + case 'isNull': + return is_null($value); + case 'isNotNull': + return !is_null($value); + case 'isEmpty': + return empty($value); + case 'isNotEmpty': + return !empty($value); + } + } + + protected function evaluateConditional($context, $valueA, $valueB) + { + switch($this->getTagName()) + { + case 'isEqual': return $valueA == $valueB; + case 'isNotEqual': return $valueA != $valueB; + case 'isGreaterThan': return $valueA > $valueB; + case 'isGreaterEqual': return $valueA >= $valueB; + case 'isLessThan': return $valueA < $valueB; + case 'isLessEqual': return $valueA <= $valueB; + } + } + + protected function evaluateParameterCheck($context, $parameter) + { + switch($this->getTagName()) + { + case 'isPropertyAvailable': return TPropertyAccess::has( + $parameter, $this->getProperty()); + case 'isPropertyAvailable': return TPropertyAccess::has( + $parameter, $this->getProperty()) == false; + case 'isParameterPresent': return !is_null($parameter); + case 'isParameterNotPresent': return is_null($parameter); + } + } + + /** + * @param object query parameter object. + * @return mixed value for comparison. + */ + protected function getComparisonValue($parameter) + { + if(strlen($property = $this->getCompareProperty()) > 0 + && (is_array($parameter) || is_object($parameter))) + { + $value = TPropertyAccess::get($parameter, $property); + } + else + $value = $this->getCompareValue(); + return $this->ensureType($value); + } + + /** + * @param object query parameter object + * @param string name of the property in the parameter object used for comparison. + * @return mixed value for comparison. + */ + protected function getPropertyValue($parameter, $property) + { + if(!is_null($property) && !is_null($parameter)) + { + if(is_array($parameter) || is_object($parameter)) + return $this->ensureType(TPropertyAccess::get($parameter, $property)); + else + return $this->ensureType($parameter); + } + else + return null; + } + + /** + * @param string property value + * @return mixed enforces property value to type given by {@link getPropertyType PropertyType}. + */ + protected function ensureType($value) + { + switch(strtolower($this->getPropertyType())) + { + case 'boolean': + return TPropertyValue::ensureBoolean($value); + case 'integer': case 'int': + return TPropertyValue::ensureInteger($value); + case 'float': case 'double': + return TPropertyValue::ensureFloat($value); + case 'array': + return TPropertyValue::ensureArray($value); + case 'object': + return TPropertyValue::ensureObject($value); + default: + return TPropertyValue::ensureString($value); + } + } +} + +?>
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