/**
* Performs conversion of SELECT statement
*/
protected function addSelectStatement()
{
foreach ($this->definition['columns'] as $column) {
$columnName = $column['name'];
$fieldName = $this->getFieldName($columnName);
$functionExpr = null;
$functionReturnType = null;
if (!empty($column['func'])) {
$function = $this->functionProvider->getFunction($column['func']['name'], $column['func']['group_name'], $column['func']['group_type']);
$functionExpr = $function['expr'];
if (isset($function['return_type'])) {
$functionReturnType = $function['return_type'];
} else {
$functionReturnType = null;
}
}
$isDistinct = !empty($column['distinct']);
$tableAlias = $this->getTableAliasForColumn($columnName);
if (isset($column['label'])) {
$columnLabel = $column['label'];
} else {
$columnLabel = $fieldName;
}
$this->addSelectColumn($this->getEntityClassName($columnName), $tableAlias, $fieldName, $this->buildColumnExpression($columnName, $tableAlias, $fieldName), $this->getColumnAlias($this->buildColumnAliasKey($column)), $columnLabel, $functionExpr, $functionReturnType, $isDistinct);
}
}
/**
* @param array $column
*
* @return array Where array has elements: string|FunctionInterface|null, string|null
*/
protected function createColumnFunction(array $column)
{
if (!empty($column['func'])) {
$function = $this->functionProvider->getFunction($column['func']['name'], $column['func']['group_name'], $column['func']['group_type']);
$functionExpr = $function['expr'];
$functionReturnType = isset($function['return_type']) ? $function['return_type'] : null;
return [$functionExpr, $functionReturnType];
}
return [null, null];
}
