public function getArguments(QueryPlaceholderInterface $queryPlaceholder = NULL)
{
if (!isset($queryPlaceholder)) {
$queryPlaceholder = $this;
}
$this->where->compile($this->connection, $queryPlaceholder);
$this->having->compile($this->connection, $queryPlaceholder);
$args = $this->where->arguments() + $this->having->arguments();
foreach ($this->tables as $table) {
if ($table['arguments']) {
$args += $table['arguments'];
}
// If this table is a subquery, grab its arguments recursively.
if ($table['table'] instanceof SelectQueryInterface) {
$args += $table['table']->getArguments($queryPlaceholder);
}
}
foreach ($this->expressions as $expression) {
if ($expression['arguments']) {
$args += $expression['arguments'];
}
}
// If there are any dependent queries to UNION,
// incorporate their arguments recursively.
foreach ($this->union as $union) {
$args += $union['query']->getArguments($queryPlaceholder);
}
return $args;
}
/**
* Implements QueryConditionInterface::arguments().
*/
public function arguments()
{
return $this->condition->arguments();
}
/**
* Executes the UPDATE query.
*
* @return
* The number of rows affected by the update.
*/
public function execute()
{
// Expressions take priority over literal fields, so we process those first
// and remove any literal fields that conflict.
$fields = $this->fields;
$update_values = array();
foreach ($this->expressionFields as $field => $data) {
if (!empty($data['arguments'])) {
$update_values += $data['arguments'];
}
unset($fields[$field]);
}
// Because we filter $fields the same way here and in __toString(), the
// placeholders will all match up properly.
$max_placeholder = 0;
foreach ($fields as $field => $value) {
$update_values[':db_update_placeholder_' . $max_placeholder++] = $value;
}
if (count($this->condition)) {
$this->condition->compile($this->connection, $this);
$update_values = array_merge($update_values, $this->condition->arguments());
}
return $this->connection->query((string) $this, $update_values, $this->queryOptions);
}
