public function executeFunction(FunctionJob $function, ExecutionContext $context)
{
/* @var $argumentValue Value */
$argumentValue = current($function->getArguments());
$beforeSourceRow = $context->getCurrentSourceRow();
$sum = 0;
foreach ($context->getCurrentSourceSet() as $row) {
$context->setCurrentSourceRow($row);
$value = $this->valueResolver->resolveValue($argumentValue, $context);
if (is_numeric($value)) {
$sum += $value;
}
}
$context->setCurrentSourceRow($beforeSourceRow);
return $sum;
}
public function executeFunction(FunctionJob $function, ExecutionContext $context)
{
/* @var $result SelectResult */
$result = $this->resultSet;
/* @var $argumentValue Value */
$argumentValue = current($function->getArguments());
$count = 0;
$beforeSourceRow = $context->getCurrentSourceRow();
foreach ($context->getCurrentSourceSet() as $row) {
$context->setCurrentSourceRow($row);
$value = $this->valueResolver->resolveValue($argumentValue);
if (!is_null($value)) {
$count++;
}
}
$context->setCurrentSourceRow($beforeSourceRow);
return $count;
}
public function resolveFunction(FunctionJob $functionJob, ExecutionContext $context)
{
$functionName = $functionJob->getName();
$classNameFunctionPart = str_replace("_", " ", strtolower($functionName));
$classNameFunctionPart = ucwords($classNameFunctionPart);
$classNameFunctionPart = str_replace(" ", "", $classNameFunctionPart);
$className = "\\Addiks\\PHPSQL\\{{$classNameFunctionPart}}";
if (!class_exists($className)) {
throw new ErrorException("Unknown or unimplemented function '{$functionName}' called! (No class '{$className}' found!)");
}
/* @var $functionExecuter FunctionResolver */
$functionExecuter = new $className();
$functionExecuter->setValueResolver($this);
$functionArguments = array();
foreach ($functionJob->getArguments() as $argument) {
if ($argument instanceof Parameter) {
$value = $argument->getValue();
} else {
$value = $argument;
}
$value = $this->resolveValue($value, $context);
$functionArguments[] = $value;
}
return $functionExecuter->executeFunction($functionJob, $functionArguments);
}
