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class Update in Drupal driver for SQL Server and SQL Azure 8

Same name and namespace in other branches
  1. 8.2 drivers/lib/Drupal/Driver/Database/sqlsrv/Update.php \Drupal\Driver\Database\sqlsrv\Update
  2. 3.0.x drivers/lib/Drupal/Driver/Database/sqlsrv/Update.php \Drupal\Driver\Database\sqlsrv\Update

Hierarchy

Expanded class hierarchy of Update

File

drivers/lib/Drupal/Driver/Database/sqlsrv/Update.php, line 24
Definition of Drupal\Driver\Database\sqlsrv\Update

Namespace

Drupal\Driver\Database\sqlsrv
View source
class Update extends QueryUpdate {
  public function execute() {

    // Retrieve query options.
    $options = $this->queryOptions;

    // Fetch the list of blobs and sequences used on that table.
    $columnInformation = $this->connection
      ->schema()
      ->queryColumnInformation($this->table);

    // Because we filter $fields the same way here and in __toString(), the
    // placeholders will all match up properly.
    $stmt = $this->connection
      ->prepareQuery((string) $this);

    // Expressions take priority over literal fields, so we process those first
    // and remove any literal fields that conflict.
    $fields = $this->fields;
    DatabaseUtils::BindExpressions($stmt, $this->expressionFields, $fields);

    // We use this array to store references to the blob handles.
    // This is necessary because the PDO will otherwise messes up with references.
    $blobs = array();
    DatabaseUtils::BindValues($stmt, $fields, $blobs, ':db_update_placeholder_', $columnInformation);

    // Add conditions.
    if (count($this->condition)) {
      $this->condition
        ->compile($this->connection, $this);
      $arguments = $this->condition
        ->arguments();
      DatabaseUtils::BindArguments($stmt, $arguments);
    }
    $options = $this->queryOptions;
    $options['already_prepared'] = TRUE;
    $this->connection
      ->query($stmt, array(), $options);
    return $stmt
      ->rowCount();
  }
  public function __toString() {

    // Create a sanitized comment string to prepend to the query.
    $prefix = $this->connection
      ->makeComment($this->comments);

    // Expressions take priority over literal fields, so we process those first
    // and remove any literal fields that conflict.
    $fields = $this->fields;
    $update_fields = array();
    foreach ($this->expressionFields as $field => $data) {
      $update_fields[] = $this->connection
        ->quoteIdentifier($field) . '=' . $data['expression'];
      unset($fields[$field]);
    }
    $max_placeholder = 0;
    foreach ($fields as $field => $value) {
      $update_fields[] = $this->connection
        ->quoteIdentifier($field) . '=:db_update_placeholder_' . $max_placeholder++;
    }
    $query = $prefix . 'UPDATE {' . $this->connection
      ->escapeTable($this->table) . '} SET ' . implode(', ', $update_fields);
    if (count($this->condition)) {
      $this->condition
        ->compile($this->connection, $this);

      // There is an implicit string cast on $this->condition.
      $query .= "\nWHERE " . $this->condition;
    }
    return $query;
  }

}

Members

Namesort descending Modifiers Type Description Overrides
Query::$comments protected property An array of comments that can be prepended to a query.
Query::$connection protected property The connection object on which to run this query.
Query::$connectionKey protected property The key of the connection object.
Query::$connectionTarget protected property The target of the connection object.
Query::$nextPlaceholder protected property The placeholder counter.
Query::$queryOptions protected property The query options to pass on to the connection object.
Query::$uniqueIdentifier protected property A unique identifier for this query object.
Query::comment public function Adds a comment to the query.
Query::getComments public function Returns a reference to the comments array for the query.
Query::nextPlaceholder public function Gets the next placeholder value for this query object. Overrides PlaceholderInterface::nextPlaceholder
Query::uniqueIdentifier public function Returns a unique identifier for this object. Overrides PlaceholderInterface::uniqueIdentifier
Query::__clone public function Implements the magic __clone function. 1
Query::__sleep public function Implements the magic __sleep function to disconnect from the database.
Query::__wakeup public function Implements the magic __wakeup function to reconnect to the database.
QueryConditionTrait::$condition protected property The condition object for this query.
QueryConditionTrait::alwaysFalse public function
QueryConditionTrait::andConditionGroup public function
QueryConditionTrait::arguments public function 1
QueryConditionTrait::compile public function 1
QueryConditionTrait::compiled public function 1
QueryConditionTrait::condition public function
QueryConditionTrait::conditionGroupFactory public function
QueryConditionTrait::conditions public function
QueryConditionTrait::exists public function
QueryConditionTrait::isNotNull public function
QueryConditionTrait::isNull public function
QueryConditionTrait::notExists public function
QueryConditionTrait::orConditionGroup public function
QueryConditionTrait::where public function
Update::$arguments protected property An array of values to update to.
Update::$expressionFields protected property Array of fields to update to an expression in case of a duplicate record.
Update::$fields protected property An array of fields that will be updated.
Update::$table protected property The table to update.
Update::execute public function Executes the UPDATE query. Overrides Update::execute
Update::expression public function Specifies fields to be updated as an expression.
Update::fields public function Adds a set of field->value pairs to be updated.
Update::__construct public function Constructs an Update query object. Overrides Query::__construct
Update::__toString public function Implements PHP magic __toString method to convert the query to a string. Overrides Update::__toString