class Update

Same name in this branch
  1. 9 core/modules/sqlite/src/Driver/Database/sqlite/Update.php \Drupal\sqlite\Driver\Database\sqlite\Update
  2. 9 core/modules/mysql/src/Driver/Database/mysql/Update.php \Drupal\mysql\Driver\Database\mysql\Update
  3. 9 core/modules/system/tests/modules/driver_test/src/Driver/Database/DrivertestMysql/Update.php \Drupal\driver_test\Driver\Database\DrivertestMysql\Update
  4. 9 core/modules/system/tests/modules/driver_test/src/Driver/Database/DrivertestMysqlDeprecatedVersion/Update.php \Drupal\driver_test\Driver\Database\DrivertestMysqlDeprecatedVersion\Update
  5. 9 core/modules/system/tests/modules/driver_test/src/Driver/Database/DrivertestPgsql/Update.php \Drupal\driver_test\Driver\Database\DrivertestPgsql\Update
  6. 9 core/modules/pgsql/src/Driver/Database/pgsql/Update.php \Drupal\pgsql\Driver\Database\pgsql\Update
  7. 9 core/tests/fixtures/database_drivers/module/corefake/src/Driver/Database/corefakeWithAllCustomClasses/Update.php \Drupal\corefake\Driver\Database\corefakeWithAllCustomClasses\Update
  8. 9 core/lib/Drupal/Core/Database/Driver/pgsql/Update.php \Drupal\Core\Database\Driver\pgsql\Update
Same name in other branches
  1. 8.9.x core/modules/system/tests/modules/driver_test/src/Driver/Database/DrivertestMysql/Update.php \Drupal\driver_test\Driver\Database\DrivertestMysql\Update
  2. 8.9.x core/modules/system/tests/modules/driver_test/src/Driver/Database/DrivertestPgsql/Update.php \Drupal\driver_test\Driver\Database\DrivertestPgsql\Update
  3. 8.9.x core/lib/Drupal/Core/Database/Driver/sqlite/Update.php \Drupal\Core\Database\Driver\sqlite\Update
  4. 8.9.x core/lib/Drupal/Core/Database/Driver/mysql/Update.php \Drupal\Core\Database\Driver\mysql\Update
  5. 8.9.x core/lib/Drupal/Core/Database/Driver/pgsql/Update.php \Drupal\Core\Database\Driver\pgsql\Update
  6. 8.9.x core/lib/Drupal/Core/Database/Query/Update.php \Drupal\Core\Database\Query\Update
  7. 10 core/modules/sqlite/src/Driver/Database/sqlite/Update.php \Drupal\sqlite\Driver\Database\sqlite\Update
  8. 10 core/modules/mysql/src/Driver/Database/mysql/Update.php \Drupal\mysql\Driver\Database\mysql\Update
  9. 10 core/modules/pgsql/src/Driver/Database/pgsql/Update.php \Drupal\pgsql\Driver\Database\pgsql\Update
  10. 10 core/tests/fixtures/database_drivers/module/core_fake/src/Driver/Database/CoreFakeWithAllCustomClasses/Update.php \Drupal\core_fake\Driver\Database\CoreFakeWithAllCustomClasses\Update
  11. 10 core/lib/Drupal/Core/Database/Driver/pgsql/Update.php \Drupal\Core\Database\Driver\pgsql\Update
  12. 10 core/lib/Drupal/Core/Database/Query/Update.php \Drupal\Core\Database\Query\Update
  13. 11.x core/modules/sqlite/src/Driver/Database/sqlite/Update.php \Drupal\sqlite\Driver\Database\sqlite\Update
  14. 11.x core/modules/mysql/src/Driver/Database/mysql/Update.php \Drupal\mysql\Driver\Database\mysql\Update
  15. 11.x core/modules/pgsql/src/Driver/Database/pgsql/Update.php \Drupal\pgsql\Driver\Database\pgsql\Update
  16. 11.x core/tests/fixtures/database_drivers/module/core_fake/src/Driver/Database/CoreFakeWithAllCustomClasses/Update.php \Drupal\core_fake\Driver\Database\CoreFakeWithAllCustomClasses\Update
  17. 11.x core/lib/Drupal/Core/Database/Query/Update.php \Drupal\Core\Database\Query\Update

General class for an abstracted UPDATE operation.

Hierarchy

Expanded class hierarchy of Update

Related topics

5 files declare their use of Update
Connection.php in core/lib/Drupal/Core/Database/Connection.php
Update.php in core/modules/sqlite/src/Driver/Database/sqlite/Update.php
Update.php in core/modules/mysql/src/Driver/Database/mysql/Update.php
Update.php in core/modules/pgsql/src/Driver/Database/pgsql/Update.php
Update.php in core/tests/fixtures/database_drivers/module/corefake/src/Driver/Database/corefakeWithAllCustomClasses/Update.php
179 string references to 'Update'
AccessTest::testOnlyOwnerCanDeleteUpdateFile in core/modules/file/tests/src/Kernel/AccessTest.php
Tests that only the file owner can delete or update a file.
AllowedPackages::event in composer/Plugin/Scaffold/AllowedPackages.php
Handles package events during a 'composer require' operation.
BlockContentAccessHandlerTest::providerTestAccess in core/modules/block_content/tests/src/Kernel/BlockContentAccessHandlerTest.php
Data provider for testAccess().
BlockUser::access in core/modules/user/src/Plugin/Action/BlockUser.php
Checks object access.
BrowserTestBaseTest::testInstall in core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php
Tests the Drupal install done in \Drupal\Tests\BrowserTestBase::setUp().

... See full list

File

core/lib/Drupal/Core/Database/Query/Update.php, line 13

Namespace

Drupal\Core\Database\Query
View source
class Update extends Query implements ConditionInterface {
    use QueryConditionTrait;
    
    /**
     * The table to update.
     *
     * @var string
     */
    protected $table;
    
    /**
     * An array of fields that will be updated.
     *
     * @var array
     */
    protected $fields = [];
    
    /**
     * An array of values to update to.
     *
     * @var array
     */
    protected $arguments = [];
    
    /**
     * Array of fields to update to an expression in case of a duplicate record.
     *
     * This variable is a nested array in the following format:
     * @code
     * <some field> => array(
     *  'condition' => <condition to execute, as a string>,
     *  'arguments' => <array of arguments for condition, or NULL for none>,
     * );
     * @endcode
     *
     * @var array
     */
    protected $expressionFields = [];
    
    /**
     * Constructs an Update query object.
     *
     * @param \Drupal\Core\Database\Connection $connection
     *   A Connection object.
     * @param string $table
     *   Name of the table to associate with this query.
     * @param array $options
     *   Array of database options.
     */
    public function __construct(Connection $connection, $table, array $options = []) {
        // @todo Remove $options['return'] in Drupal 11.
        // @see https://www.drupal.org/project/drupal/issues/3256524
        $options['return'] = Database::RETURN_AFFECTED;
        parent::__construct($connection, $options);
        $this->table = $table;
        $this->condition = $this->connection
            ->condition('AND');
    }
    
    /**
     * Adds a set of field->value pairs to be updated.
     *
     * @param $fields
     *   An associative array of fields to write into the database. The array keys
     *   are the field names and the values are the values to which to set them.
     *
     * @return $this
     *   The called object.
     */
    public function fields(array $fields) {
        $this->fields = $fields;
        return $this;
    }
    
    /**
     * Specifies fields to be updated as an expression.
     *
     * Expression fields are cases such as counter=counter+1. This method takes
     * precedence over fields().
     *
     * @param $field
     *   The field to set.
     * @param $expression
     *   The field will be set to the value of this expression. This parameter
     *   may include named placeholders.
     * @param $arguments
     *   If specified, this is an array of key/value pairs for named placeholders
     *   corresponding to the expression.
     *
     * @return $this
     *   The called object.
     */
    public function expression($field, $expression, array $arguments = NULL) {
        $this->expressionFields[$field] = [
            'expression' => $expression,
            'arguments' => $arguments,
        ];
        return $this;
    }
    
    /**
     * Executes the UPDATE query.
     *
     * @return int|null
     *   The number of rows matched by the update query. This includes rows that
     *   actually didn't have to be updated because the values didn't change.
     */
    public function execute() {
        // Expressions take priority over literal fields, so we process those first
        // and remove any literal fields that conflict.
        $fields = $this->fields;
        $update_values = [];
        foreach ($this->expressionFields as $field => $data) {
            if (!empty($data['arguments'])) {
                $update_values += $data['arguments'];
            }
            if ($data['expression'] instanceof SelectInterface) {
                $data['expression']->compile($this->connection, $this);
                $update_values += $data['expression']->arguments();
            }
            unset($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 $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());
        }
        $stmt = $this->connection
            ->prepareStatement((string) $this, $this->queryOptions, TRUE);
        try {
            $stmt->execute($update_values, $this->queryOptions);
            return $stmt->rowCount();
        } catch (\Exception $e) {
            $this->connection
                ->exceptionHandler()
                ->handleExecutionException($e, $stmt, $update_values, $this->queryOptions);
        }
    }
    
    /**
     * Implements PHP magic __toString method to convert the query to a string.
     *
     * @return string
     *   The prepared statement.
     */
    public function __toString() {
        // Create a sanitized comment string to prepend to the query.
        $comments = $this->connection
            ->makeComment($this->comments);
        // Expressions take priority over literal fields, so we process those first
        // and remove any literal fields that conflict.
        $fields = $this->fields;
        $update_fields = [];
        foreach ($this->expressionFields as $field => $data) {
            if ($data['expression'] instanceof SelectInterface) {
                // Compile and cast expression subquery to a string.
                $data['expression']->compile($this->connection, $this);
                $data['expression'] = ' (' . $data['expression'] . ')';
            }
            $update_fields[] = $this->connection
                ->escapeField($field) . '=' . $data['expression'];
            unset($fields[$field]);
        }
        $max_placeholder = 0;
        foreach ($fields as $field => $value) {
            $update_fields[] = $this->connection
                ->escapeField($field) . '=:db_update_placeholder_' . $max_placeholder++;
        }
        $query = $comments . '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

Title Sort descending Modifiers Object type Summary Overriden Title 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::$uniqueIdentifier protected property A unique identifier for this query object.
Query::comment public function Adds a comment to the query.
Query::getComments public function Returns a reference to the comments array for the query.
Query::getConnection public function Gets the database connection to be used for the query.
Query::nextPlaceholder public function Gets the next placeholder value for this query object. Overrides PlaceholderInterface::nextPlaceholder
Query::uniqueIdentifier public function Returns a unique identifier for this object. Overrides PlaceholderInterface::uniqueIdentifier
Query::__clone public function Implements the magic __clone function. 1
Query::__sleep public function Implements the magic __sleep function to disconnect from the database.
Query::__wakeup public function Implements the magic __wakeup function to reconnect to the database.
QueryConditionTrait::$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 Query::execute 1
Update::expression public function Specifies fields to be updated as an expression.
Update::fields public function Adds a set of field-&gt;value pairs to be updated.
Update::__construct public function Constructs an Update query object. Overrides Query::__construct 3
Update::__toString public function Implements PHP magic __toString method to convert the query to a string. Overrides Query::__toString

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.