public function Upsert::execute in Drupal 9
Same name in this branch
- 9 core/lib/Drupal/Core/Database/Query/Upsert.php \Drupal\Core\Database\Query\Upsert::execute()
- 9 core/lib/Drupal/Core/Database/Driver/pgsql/Upsert.php \Drupal\Core\Database\Driver\pgsql\Upsert::execute()
- 9 core/tests/fixtures/database_drivers/module/corefake/src/Driver/Database/corefakeWithAllCustomClasses/Upsert.php \Drupal\corefake\Driver\Database\corefakeWithAllCustomClasses\Upsert::execute()
Same name and namespace in other branches
- 8 core/lib/Drupal/Core/Database/Driver/pgsql/Upsert.php \Drupal\Core\Database\Driver\pgsql\Upsert::execute()
Executes the UPSERT operation.
Return value
int An integer indicating the number of rows affected by the operation. Do not rely on this value as a precise indication of the actual rows affected: different database engines return different values.
Overrides Upsert::execute
File
- core/
lib/ Drupal/ Core/ Database/ Driver/ pgsql/ Upsert.php, line 17
Class
- Upsert
- PostgreSQL implementation of \Drupal\Core\Database\Query\Upsert.
Namespace
Drupal\Core\Database\Driver\pgsqlCode
public function execute() {
if (!$this
->preExecute()) {
return NULL;
}
$stmt = $this->connection
->prepareStatement((string) $this, $this->queryOptions, TRUE);
// Fetch the list of blobs and sequences used on that table.
$table_information = $this->connection
->schema()
->queryTableInformation($this->table);
$max_placeholder = 0;
$blobs = [];
$blob_count = 0;
foreach ($this->insertValues as $insert_values) {
foreach ($this->insertFields as $idx => $field) {
if (isset($table_information->blob_fields[$field]) && $insert_values[$idx] !== NULL) {
$blobs[$blob_count] = fopen('php://memory', 'a');
fwrite($blobs[$blob_count], $insert_values[$idx]);
rewind($blobs[$blob_count]);
$stmt
->getClientStatement()
->bindParam(':db_insert_placeholder_' . $max_placeholder++, $blobs[$blob_count], \PDO::PARAM_LOB);
// Pre-increment is faster in PHP than increment.
++$blob_count;
}
else {
$stmt
->getClientStatement()
->bindParam(':db_insert_placeholder_' . $max_placeholder++, $insert_values[$idx]);
}
}
// Check if values for a serial field has been passed.
if (!empty($table_information->serial_fields)) {
foreach ($table_information->serial_fields as $index => $serial_field) {
$serial_key = array_search($serial_field, $this->insertFields);
if ($serial_key !== FALSE) {
$serial_value = $insert_values[$serial_key];
// Sequences must be greater than or equal to 1.
if ($serial_value === NULL || !$serial_value) {
$serial_value = 1;
}
// Set the sequence to the bigger value of either the passed
// value or the max value of the column. It can happen that another
// thread calls nextval() which could lead to a serial number being
// used twice. However, trying to insert a value into a serial
// column should only be done in very rare cases and is not thread
// safe by definition.
$this->connection
->query("SELECT setval('" . $table_information->sequences[$index] . "', GREATEST(MAX(" . $serial_field . "), :serial_value)) FROM {" . $this->table . "}", [
':serial_value' => (int) $serial_value,
]);
}
}
}
}
$options = $this->queryOptions;
if (!empty($table_information->sequences)) {
$options['sequence_name'] = $table_information->sequences[0];
}
// Re-initialize the values array so that we can re-use this query.
$this->insertValues = [];
// Create a savepoint so we can rollback a failed query. This is so we can
// mimic MySQL and SQLite transactions which don't fail if a single query
// fails. This is important for tables that are created on demand. For
// example, \Drupal\Core\Cache\DatabaseBackend.
$this->connection
->addSavepoint();
try {
$stmt
->execute(NULL, $options);
$this->connection
->releaseSavepoint();
return $stmt
->rowCount();
} catch (\Exception $e) {
$this->connection
->rollbackSavepoint();
$this->connection
->exceptionHandler()
->handleExecutionException($e, $stmt, [], $options);
}
}