/**
* Instantiate a AttributeValue from a Database Row.
* Takes in an optional strAliasPrefix, used in case another Object::InstantiateDbRow
* is calling this AttributeValue::InstantiateDbRow in order to perform
* early binding on referenced objects.
* @param QDatabaseRowBase $objDbRow
* @param string $strAliasPrefix
* @param string $strExpandAsArrayNodes
* @param QBaseClass $objPreviousItem
* @param string[] $strColumnAliasArray
* @return AttributeValue
*/
public static function InstantiateDbRow($objDbRow, $strAliasPrefix = null, $strExpandAsArrayNodes = null, $objPreviousItem = null, $strColumnAliasArray = array())
{
// If blank row, return null
if (!$objDbRow) {
return null;
}
// See if we're doing an array expansion on the previous item
$strAlias = $strAliasPrefix . 'id';
$strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
if ($strExpandAsArrayNodes && $objPreviousItem && $objPreviousItem->intId == $objDbRow->GetColumn($strAliasName, 'Integer')) {
// We are. Now, prepare to check for ExpandAsArray clauses
$blnExpandedViaArray = false;
if (!$strAliasPrefix) {
$strAliasPrefix = 'attribute_value__';
}
$strAlias = $strAliasPrefix . 'attributeoptionasmultiple__attribute_option_id__id';
$strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
if (array_key_exists($strAlias, $strExpandAsArrayNodes) && !is_null($objDbRow->GetColumn($strAliasName))) {
if ($intPreviousChildItemCount = count($objPreviousItem->_objAttributeOptionAsMultipleArray)) {
$objPreviousChildItem = $objPreviousItem->_objAttributeOptionAsMultipleArray[$intPreviousChildItemCount - 1];
$objChildItem = AttributeOption::InstantiateDbRow($objDbRow, $strAliasPrefix . 'attributeoptionasmultiple__attribute_option_id__', $strExpandAsArrayNodes, $objPreviousChildItem, $strColumnAliasArray);
if ($objChildItem) {
$objPreviousItem->_objAttributeOptionAsMultipleArray[] = $objChildItem;
}
} else {
$objPreviousItem->_objAttributeOptionAsMultipleArray[] = AttributeOption::InstantiateDbRow($objDbRow, $strAliasPrefix . 'attributeoptionasmultiple__attribute_option_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
}
$blnExpandedViaArray = true;
}
// Either return false to signal array expansion, or check-to-reset the Alias prefix and move on
if ($blnExpandedViaArray) {
return false;
} else {
if ($strAliasPrefix == 'attribute_value__') {
$strAliasPrefix = null;
}
}
}
// Create a new instance of the AttributeValue object
$objToReturn = new AttributeValue();
$objToReturn->__blnRestored = true;
$strAliasName = array_key_exists($strAliasPrefix . 'id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'id'] : $strAliasPrefix . 'id';
$objToReturn->intId = $objDbRow->GetColumn($strAliasName, 'Integer');
$strAliasName = array_key_exists($strAliasPrefix . 'attribute_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'attribute_id'] : $strAliasPrefix . 'attribute_id';
$objToReturn->intAttributeId = $objDbRow->GetColumn($strAliasName, 'Integer');
$strAliasName = array_key_exists($strAliasPrefix . 'person_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'person_id'] : $strAliasPrefix . 'person_id';
$objToReturn->intPersonId = $objDbRow->GetColumn($strAliasName, 'Integer');
$strAliasName = array_key_exists($strAliasPrefix . 'date_value', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'date_value'] : $strAliasPrefix . 'date_value';
$objToReturn->dttDateValue = $objDbRow->GetColumn($strAliasName, 'Date');
$strAliasName = array_key_exists($strAliasPrefix . 'datetime_value', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'datetime_value'] : $strAliasPrefix . 'datetime_value';
$objToReturn->dttDatetimeValue = $objDbRow->GetColumn($strAliasName, 'DateTime');
$strAliasName = array_key_exists($strAliasPrefix . 'text_value', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'text_value'] : $strAliasPrefix . 'text_value';
$objToReturn->strTextValue = $objDbRow->GetColumn($strAliasName, 'Blob');
$strAliasName = array_key_exists($strAliasPrefix . 'boolean_value', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'boolean_value'] : $strAliasPrefix . 'boolean_value';
$objToReturn->blnBooleanValue = $objDbRow->GetColumn($strAliasName, 'Bit');
$strAliasName = array_key_exists($strAliasPrefix . 'single_attribute_option_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'single_attribute_option_id'] : $strAliasPrefix . 'single_attribute_option_id';
$objToReturn->intSingleAttributeOptionId = $objDbRow->GetColumn($strAliasName, 'Integer');
// Instantiate Virtual Attributes
foreach ($objDbRow->GetColumnNameArray() as $strColumnName => $mixValue) {
$strVirtualPrefix = $strAliasPrefix . '__';
$strVirtualPrefixLength = strlen($strVirtualPrefix);
if (substr($strColumnName, 0, $strVirtualPrefixLength) == $strVirtualPrefix) {
$objToReturn->__strVirtualAttributeArray[substr($strColumnName, $strVirtualPrefixLength)] = $mixValue;
}
}
// Prepare to Check for Early/Virtual Binding
if (!$strAliasPrefix) {
$strAliasPrefix = 'attribute_value__';
}
// Check for Attribute Early Binding
$strAlias = $strAliasPrefix . 'attribute_id__id';
$strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
if (!is_null($objDbRow->GetColumn($strAliasName))) {
$objToReturn->objAttribute = Attribute::InstantiateDbRow($objDbRow, $strAliasPrefix . 'attribute_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
}
// Check for Person Early Binding
$strAlias = $strAliasPrefix . 'person_id__id';
$strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
if (!is_null($objDbRow->GetColumn($strAliasName))) {
$objToReturn->objPerson = Person::InstantiateDbRow($objDbRow, $strAliasPrefix . 'person_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
}
// Check for SingleAttributeOption Early Binding
$strAlias = $strAliasPrefix . 'single_attribute_option_id__id';
$strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
if (!is_null($objDbRow->GetColumn($strAliasName))) {
$objToReturn->objSingleAttributeOption = AttributeOption::InstantiateDbRow($objDbRow, $strAliasPrefix . 'single_attribute_option_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
}
// Check for AttributeOptionAsMultiple Virtual Binding
$strAlias = $strAliasPrefix . 'attributeoptionasmultiple__attribute_option_id__id';
$strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
if (!is_null($objDbRow->GetColumn($strAliasName))) {
if ($strExpandAsArrayNodes && array_key_exists($strAlias, $strExpandAsArrayNodes)) {
$objToReturn->_objAttributeOptionAsMultipleArray[] = AttributeOption::InstantiateDbRow($objDbRow, $strAliasPrefix . 'attributeoptionasmultiple__attribute_option_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
} else {
$objToReturn->_objAttributeOptionAsMultiple = AttributeOption::InstantiateDbRow($objDbRow, $strAliasPrefix . 'attributeoptionasmultiple__attribute_option_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
}
}
return $objToReturn;
}
/**
* Instantiate a single Attribute object from a query cursor (e.g. a DB ResultSet).
* Cursor is automatically moved to the "next row" of the result set.
* Will return NULL if no cursor or if the cursor has no more rows in the resultset.
* @param QDatabaseResultBase $objDbResult cursor resource
* @return Attribute next row resulting from the query
*/
public static function InstantiateCursor(QDatabaseResultBase $objDbResult)
{
// If blank resultset, then return empty result
if (!$objDbResult) {
return null;
}
// If empty resultset, then return empty result
$objDbRow = $objDbResult->GetNextRow();
if (!$objDbRow) {
return null;
}
// We need the Column Aliases
$strColumnAliasArray = $objDbResult->QueryBuilder->ColumnAliasArray;
if (!$strColumnAliasArray) {
$strColumnAliasArray = array();
}
// Pull Expansions (if applicable)
$strExpandAsArrayNodes = $objDbResult->QueryBuilder->ExpandAsArrayNodes;
// Load up the return result with a row and return it
return Attribute::InstantiateDbRow($objDbRow, null, $strExpandAsArrayNodes, null, $strColumnAliasArray);
}
