lib/private/DB/QueryBuilder/QueryBuilder.php
<?php
/**
* @author Joas Schilling <coding@schilljs.com>
* @author Robin Appelman <icewind@owncloud.com>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @copyright Copyright (c) 2018, ownCloud GmbH
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\DB\QueryBuilder;
use Doctrine\DBAL\Platforms\MySqlPlatform;
use Doctrine\DBAL\Platforms\PostgreSqlPlatform;
use Doctrine\DBAL\Types\Type;
use OC\DB\OracleConnection;
use OC\DB\QueryBuilder\ExpressionBuilder\ExpressionBuilder;
use OC\DB\QueryBuilder\ExpressionBuilder\MySqlExpressionBuilder;
use OC\DB\QueryBuilder\ExpressionBuilder\OCIExpressionBuilder;
use OC\DB\QueryBuilder\ExpressionBuilder\PgSqlExpressionBuilder;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\DB\QueryBuilder\IQueryFunction;
use OCP\DB\QueryBuilder\IParameter;
use OCP\IDBConnection;
class QueryBuilder implements IQueryBuilder {
/** @var \OCP\IDBConnection */
private $connection;
/** @var \Doctrine\DBAL\Query\QueryBuilder */
private $queryBuilder;
/** @var QuoteHelper */
private $helper;
/** @var bool */
private $automaticTablePrefix = true;
/** @var string */
protected $lastInsertedTable;
/**
* Initializes a new QueryBuilder.
*
* @param \OCP\IDBConnection $connection
*/
public function __construct(IDBConnection $connection) {
$this->connection = $connection;
$this->queryBuilder = new \Doctrine\DBAL\Query\QueryBuilder($this->connection);
$this->helper = new QuoteHelper();
}
/**
* Enable/disable automatic prefixing of table names with the oc_ prefix
*
* @param bool $enabled If set to true table names will be prefixed with the
* owncloud database prefix automatically.
* @since 8.2.0
*/
public function automaticTablePrefix($enabled) {
$this->automaticTablePrefix = (bool) $enabled;
}
/**
* Gets an ExpressionBuilder used for object-oriented construction of query expressions.
* This producer method is intended for convenient inline usage. Example:
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u')
* ->from('users', 'u')
* ->where($qb->expr()->eq('u.id', 1));
* </code>
*
* For more complex expression construction, consider storing the expression
* builder object in a local variable.
*
* @return \OCP\DB\QueryBuilder\IExpressionBuilder
*/
public function expr() {
if ($this->connection instanceof OracleConnection) {
return new OCIExpressionBuilder($this->connection);
} elseif ($this->connection->getDatabasePlatform() instanceof PostgreSqlPlatform) {
return new PgSqlExpressionBuilder($this->connection);
} elseif ($this->connection->getDatabasePlatform() instanceof MySqlPlatform) {
return new MySqlExpressionBuilder($this->connection);
} else {
return new ExpressionBuilder($this->connection);
}
}
/**
* Gets the type of the currently built query.
*
* @return integer
*/
public function getType() {
return $this->queryBuilder->getType();
}
/**
* Gets the associated DBAL Connection for this query builder.
*
* @return \OCP\IDBConnection
*/
public function getConnection() {
return $this->connection;
}
/**
* Gets the state of this query builder instance.
*
* @return integer Either QueryBuilder::STATE_DIRTY or QueryBuilder::STATE_CLEAN.
*/
public function getState() {
return $this->queryBuilder->getState();
}
/**
* Executes this query using the bound parameters and their types.
*
* Uses {@see Connection::executeQuery} for select statements and {@see Connection::executeUpdate}
* for insert, update and delete statements.
*
* @return \Doctrine\DBAL\Driver\Statement|int
*/
public function execute() {
return $this->queryBuilder->execute();
}
/**
* Gets the complete SQL string formed by the current specifications of this QueryBuilder.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* echo $qb->getSQL(); // SELECT u FROM User u
* </code>
*
* @return string The SQL query string.
*/
public function getSQL() {
return $this->queryBuilder->getSQL();
}
/**
* Sets a query parameter for the query being constructed.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u')
* ->from('users', 'u')
* ->where('u.id = :user_id')
* ->setParameter(':user_id', 1);
* </code>
*
* @param string|integer $key The parameter position or name.
* @param mixed $value The parameter value.
* @param int|string|Type|null $type One of the IQueryBuilder::PARAM_* constants.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function setParameter($key, $value, $type = null) {
$this->queryBuilder->setParameter($key, $value, $type);
return $this;
}
/**
* Sets a collection of query parameters for the query being constructed.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u')
* ->from('users', 'u')
* ->where('u.id = :user_id1 OR u.id = :user_id2')
* ->setParameters(array(
* ':user_id1' => 1,
* ':user_id2' => 2
* ));
* </code>
*
* @param array $params The query parameters to set.
* @param array $types The query parameters types to set.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function setParameters(array $params, array $types = []) {
$this->queryBuilder->setParameters($params, $types);
return $this;
}
/**
* Gets all defined query parameters for the query being constructed indexed by parameter index or name.
*
* @return array The currently defined query parameters indexed by parameter index or name.
*/
public function getParameters() {
return $this->queryBuilder->getParameters();
}
/**
* Gets a (previously set) query parameter of the query being constructed.
*
* @param mixed $key The key (index or name) of the bound parameter.
*
* @return mixed The value of the bound parameter.
*/
public function getParameter($key) {
return $this->queryBuilder->getParameter($key);
}
/**
* Gets all defined query parameter types for the query being constructed indexed by parameter index or name.
*
* @return array The currently defined query parameter types indexed by parameter index or name.
*/
public function getParameterTypes() {
return $this->queryBuilder->getParameterTypes();
}
/**
* Gets a (previously set) query parameter type of the query being constructed.
*
* @param mixed $key The key (index or name) of the bound parameter type.
*
* @return mixed The value of the bound parameter type.
*/
public function getParameterType($key) {
return $this->queryBuilder->getParameterType($key);
}
/**
* Sets the position of the first result to retrieve (the "offset").
*
* @param integer $firstResult The first result to return.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function setFirstResult($firstResult) {
$this->queryBuilder->setFirstResult($firstResult);
return $this;
}
/**
* Gets the position of the first result the query object was set to retrieve (the "offset").
* Returns NULL if {@link setFirstResult} was not applied to this QueryBuilder.
*
* @return integer The position of the first result.
*/
public function getFirstResult() {
return $this->queryBuilder->getFirstResult();
}
/**
* Sets the maximum number of results to retrieve (the "limit").
*
* NOTE: Setting max results to "0" will cause mixed behaviour. While most
* of the databases will just return an empty result set, Oracle will return
* all entries.
*
* @param integer $maxResults The maximum number of results to retrieve.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function setMaxResults($maxResults) {
$this->queryBuilder->setMaxResults($maxResults);
return $this;
}
/**
* Gets the maximum number of results the query object was set to retrieve (the "limit").
* Returns NULL if {@link setMaxResults} was not applied to this query builder.
*
* @return integer The maximum number of results.
*/
public function getMaxResults() {
return $this->queryBuilder->getMaxResults();
}
/**
* Specifies an item that is to be returned in the query result.
* Replaces any previously specified selections, if any.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u.id', 'p.id')
* ->from('users', 'u')
* ->leftJoin('u', 'phonenumbers', 'p', 'u.id = p.user_id');
* </code>
*
* @param mixed $select The selection expressions.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function select($select = null) {
$selects = \is_array($select) ? $select : \func_get_args();
$this->queryBuilder->select(
$this->helper->quoteColumnNames($selects)
);
return $this;
}
/**
* Specifies an item that is to be returned with a different name in the query result.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->selectAlias('u.id', 'user_id')
* ->from('users', 'u')
* ->leftJoin('u', 'phonenumbers', 'p', 'u.id = p.user_id');
* </code>
*
* @param mixed $select The selection expressions.
* @param string $alias The column alias used in the constructed query.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function selectAlias($select, $alias) {
$this->queryBuilder->addSelect(
$this->helper->quoteColumnName($select) . ' AS ' . $this->helper->quoteColumnName($alias)
);
return $this;
}
/**
* Specifies an item that is to be returned uniquely in the query result.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->selectDistinct('type')
* ->from('users');
* </code>
*
* @param mixed $select The selection expressions.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function selectDistinct($select) {
$this->queryBuilder->addSelect(
'DISTINCT ' . $this->helper->quoteColumnName($select)
);
return $this;
}
/**
* Adds an item that is to be returned in the query result.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u.id')
* ->addSelect('p.id')
* ->from('users', 'u')
* ->leftJoin('u', 'phonenumbers', 'u.id = p.user_id');
* </code>
*
* @param mixed $select The selection expression.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function addSelect($select = null) {
$selects = \is_array($select) ? $select : \func_get_args();
$this->queryBuilder->addSelect(
$this->helper->quoteColumnNames($selects)
);
return $this;
}
/**
* Turns the query being built into a bulk delete query that ranges over
* a certain table.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->delete('users', 'u')
* ->where('u.id = :user_id');
* ->setParameter(':user_id', 1);
* </code>
*
* @param string $delete The table whose rows are subject to the deletion.
* @param string $alias The table alias used in the constructed query.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function delete($delete = null, $alias = null) {
$this->queryBuilder->delete(
$this->getTableName($delete),
$alias
);
return $this;
}
/**
* Turns the query being built into a bulk update query that ranges over
* a certain table
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->update('users', 'u')
* ->set('u.password', md5('password'))
* ->where('u.id = ?');
* </code>
*
* @param string $update The table whose rows are subject to the update.
* @param string $alias The table alias used in the constructed query.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function update($update = null, $alias = null) {
$this->queryBuilder->update(
$this->getTableName($update),
$alias
);
return $this;
}
/**
* Turns the query being built into an insert query that inserts into
* a certain table
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->insert('users')
* ->values(
* array(
* 'name' => '?',
* 'password' => '?'
* )
* );
* </code>
*
* @param string $insert The table into which the rows should be inserted.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function insert($insert = null) {
$this->queryBuilder->insert(
$this->getTableName($insert)
);
$this->lastInsertedTable = $insert;
return $this;
}
/**
* Creates and adds a query root corresponding to the table identified by the
* given alias, forming a cartesian product with any existing query roots.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u.id')
* ->from('users', 'u')
* </code>
*
* @param string $from The table.
* @param string|null $alias The alias of the table.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function from($from, $alias = null) {
$this->queryBuilder->from(
$this->getTableName($from),
$alias
);
return $this;
}
/**
* Creates and adds a join to the query.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u.name')
* ->from('users', 'u')
* ->join('u', 'phonenumbers', 'p', 'p.is_primary = 1');
* </code>
*
* @param string $fromAlias The alias that points to a from clause.
* @param string $join The table name to join.
* @param string $alias The alias of the join table.
* @param string $condition The condition for the join.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function join($fromAlias, $join, $alias, $condition = null) {
$this->queryBuilder->join(
$fromAlias,
$this->getTableName($join),
$alias,
$condition
);
return $this;
}
/**
* Creates and adds a join to the query.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u.name')
* ->from('users', 'u')
* ->innerJoin('u', 'phonenumbers', 'p', 'p.is_primary = 1');
* </code>
*
* @param string $fromAlias The alias that points to a from clause.
* @param string $join The table name to join.
* @param string $alias The alias of the join table.
* @param string $condition The condition for the join.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function innerJoin($fromAlias, $join, $alias, $condition = null) {
$this->queryBuilder->innerJoin(
$fromAlias,
$this->getTableName($join),
$alias,
$condition
);
return $this;
}
/**
* Creates and adds a left join to the query.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u.name')
* ->from('users', 'u')
* ->leftJoin('u', 'phonenumbers', 'p', 'p.is_primary = 1');
* </code>
*
* @param string $fromAlias The alias that points to a from clause.
* @param string $join The table name to join.
* @param string $alias The alias of the join table.
* @param string $condition The condition for the join.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function leftJoin($fromAlias, $join, $alias, $condition = null) {
$this->queryBuilder->leftJoin(
$fromAlias,
$this->getTableName($join),
$alias,
$condition
);
return $this;
}
/**
* Creates and adds a right join to the query.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u.name')
* ->from('users', 'u')
* ->rightJoin('u', 'phonenumbers', 'p', 'p.is_primary = 1');
* </code>
*
* @param string $fromAlias The alias that points to a from clause.
* @param string $join The table name to join.
* @param string $alias The alias of the join table.
* @param string $condition The condition for the join.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function rightJoin($fromAlias, $join, $alias, $condition = null) {
$this->queryBuilder->rightJoin(
$fromAlias,
$this->getTableName($join),
$alias,
$condition
);
return $this;
}
/**
* Sets a new value for a column in a bulk update query.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->update('users', 'u')
* ->set('u.password', md5('password'))
* ->where('u.id = ?');
* </code>
*
* @param string $key The column to set.
* @param string $value The value, expression, placeholder, etc.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function set($key, $value) {
$this->queryBuilder->set(
$this->helper->quoteColumnName($key),
$this->helper->quoteColumnName($value)
);
return $this;
}
/**
* Specifies one or more restrictions to the query result.
* Replaces any previously specified restrictions, if any.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u.name')
* ->from('users', 'u')
* ->where('u.id = ?');
*
* // You can optionally programatically build and/or expressions
* $qb = $conn->getQueryBuilder();
*
* $or = $qb->expr()->orx();
* $or->add($qb->expr()->eq('u.id', 1));
* $or->add($qb->expr()->eq('u.id', 2));
*
* $qb->update('users', 'u')
* ->set('u.password', md5('password'))
* ->where($or);
* </code>
*
* @param mixed $predicates The restriction predicates.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function where($predicates) {
\call_user_func_array(
[$this->queryBuilder, 'where'],
\func_get_args()
);
return $this;
}
/**
* Adds one or more restrictions to the query results, forming a logical
* conjunction with any previously specified restrictions.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u')
* ->from('users', 'u')
* ->where('u.username LIKE ?')
* ->andWhere('u.is_active = 1');
* </code>
*
* @param mixed $where The query restrictions.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*
* @see where()
*/
public function andWhere($where) {
\call_user_func_array(
[$this->queryBuilder, 'andWhere'],
\func_get_args()
);
return $this;
}
/**
* Adds one or more restrictions to the query results, forming a logical
* disjunction with any previously specified restrictions.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u.name')
* ->from('users', 'u')
* ->where('u.id = 1')
* ->orWhere('u.id = 2');
* </code>
*
* @param mixed $where The WHERE statement.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*
* @see where()
*/
public function orWhere($where) {
\call_user_func_array(
[$this->queryBuilder, 'orWhere'],
\func_get_args()
);
return $this;
}
/**
* Specifies a grouping over the results of the query.
* Replaces any previously specified groupings, if any.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u.name')
* ->from('users', 'u')
* ->groupBy('u.id');
* </code>
*
* @param mixed $groupBy The grouping expression.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function groupBy($groupBy) {
$groupBys = \is_array($groupBy) ? $groupBy : \func_get_args();
\call_user_func_array(
[$this->queryBuilder, 'groupBy'],
$this->helper->quoteColumnNames($groupBys)
);
return $this;
}
/**
* Adds a grouping expression to the query.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->select('u.name')
* ->from('users', 'u')
* ->groupBy('u.lastLogin');
* ->addGroupBy('u.createdAt')
* </code>
*
* @param mixed $groupBy The grouping expression.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function addGroupBy($groupBy) {
$groupBys = \is_array($groupBy) ? $groupBy : \func_get_args();
\call_user_func_array(
[$this->queryBuilder, 'addGroupBy'],
$this->helper->quoteColumnNames($groupBys)
);
return $this;
}
/**
* Sets a value for a column in an insert query.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->insert('users')
* ->values(
* array(
* 'name' => '?'
* )
* )
* ->setValue('password', '?');
* </code>
*
* @param string $column The column into which the value should be inserted.
* @param string $value The value that should be inserted into the column.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function setValue($column, $value) {
$this->queryBuilder->setValue(
$this->helper->quoteColumnName($column),
$value
);
return $this;
}
/**
* Specifies values for an insert query indexed by column names.
* Replaces any previous values, if any.
*
* <code>
* $qb = $conn->getQueryBuilder()
* ->insert('users')
* ->values(
* array(
* 'name' => '?',
* 'password' => '?'
* )
* );
* </code>
*
* @param array $values The values to specify for the insert query indexed by column names.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function values(array $values) {
$quotedValues = [];
foreach ($values as $key => $value) {
$quotedValues[$this->helper->quoteColumnName($key)] = $value;
}
$this->queryBuilder->values($quotedValues);
return $this;
}
/**
* Specifies a restriction over the groups of the query.
* Replaces any previous having restrictions, if any.
*
* @param mixed $having The restriction over the groups.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function having($having) {
\call_user_func_array(
[$this->queryBuilder, 'having'],
\func_get_args()
);
return $this;
}
/**
* Adds a restriction over the groups of the query, forming a logical
* conjunction with any existing having restrictions.
*
* @param mixed $having The restriction to append.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function andHaving($having) {
\call_user_func_array(
[$this->queryBuilder, 'andHaving'],
\func_get_args()
);
return $this;
}
/**
* Adds a restriction over the groups of the query, forming a logical
* disjunction with any existing having restrictions.
*
* @param mixed $having The restriction to add.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function orHaving($having) {
\call_user_func_array(
[$this->queryBuilder, 'orHaving'],
\func_get_args()
);
return $this;
}
/**
* Specifies an ordering for the query results.
* Replaces any previously specified orderings, if any.
*
* @param string $sort The ordering expression.
* @param string $order The ordering direction.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function orderBy($sort, $order = null) {
$this->queryBuilder->orderBy(
$this->helper->quoteColumnName($sort),
$order
);
return $this;
}
/**
* Adds an ordering to the query results.
*
* @param string $sort The ordering expression.
* @param string $order The ordering direction.
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function addOrderBy($sort, $order = null) {
$this->queryBuilder->addOrderBy(
$this->helper->quoteColumnName($sort),
$order
);
return $this;
}
/**
* Gets a query part by its name.
*
* @param string $queryPartName
*
* @return mixed
*/
public function getQueryPart($queryPartName) {
return $this->queryBuilder->getQueryPart($queryPartName);
}
/**
* Gets all query parts.
*
* @return array
*/
public function getQueryParts() {
return $this->queryBuilder->getQueryParts();
}
/**
* Resets SQL parts.
*
* @param array|null $queryPartNames
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function resetQueryParts($queryPartNames = null) {
$this->queryBuilder->resetQueryParts($queryPartNames);
return $this;
}
/**
* Resets a single SQL part.
*
* @param string $queryPartName
*
* @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.
*/
public function resetQueryPart($queryPartName) {
$this->queryBuilder->resetQueryPart($queryPartName);
return $this;
}
/**
* Creates a new named parameter and bind the value $value to it.
*
* This method provides a shortcut for PDOStatement::bindValue
* when using prepared statements.
*
* The parameter $value specifies the value that you want to bind. If
* $placeholder is not provided bindValue() will automatically create a
* placeholder for you. An automatic placeholder will be of the name
* ':dcValue1', ':dcValue2' etc.
*
* For more information see {@link http://php.net/pdostatement-bindparam}
*
* Example:
* <code>
* $value = 2;
* $q->eq( 'id', $q->bindValue( $value ) );
* $stmt = $q->executeQuery(); // executed with 'id = 2'
* </code>
*
* @license New BSD License
* @link http://www.zetacomponents.org
*
* @param mixed $value
* @param mixed $type
* @param string $placeHolder The name to bind with. The string must start with a colon ':'.
*
* @return IParameter the placeholder name used.
*/
public function createNamedParameter($value, $type = IQueryBuilder::PARAM_STR, $placeHolder = null) {
return new Parameter($this->queryBuilder->createNamedParameter($value, $type, $placeHolder));
}
/**
* Creates a new positional parameter and bind the given value to it.
*
* Attention: If you are using positional parameters with the query builder you have
* to be very careful to bind all parameters in the order they appear in the SQL
* statement , otherwise they get bound in the wrong order which can lead to serious
* bugs in your code.
*
* Example:
* <code>
* $qb = $conn->getQueryBuilder();
* $qb->select('u.*')
* ->from('users', 'u')
* ->where('u.username = ' . $qb->createPositionalParameter('Foo', IQueryBuilder::PARAM_STR))
* ->orWhere('u.username = ' . $qb->createPositionalParameter('Bar', IQueryBuilder::PARAM_STR))
* </code>
*
* @param mixed $value
* @param integer $type
*
* @return IParameter
*/
public function createPositionalParameter($value, $type = IQueryBuilder::PARAM_STR) {
return new Parameter($this->queryBuilder->createPositionalParameter($value, $type));
}
/**
* Creates a new parameter
*
* Example:
* <code>
* $qb = $conn->getQueryBuilder();
* $qb->select('u.*')
* ->from('users', 'u')
* ->where('u.username = ' . $qb->createParameter('name'))
* ->setParameter('name', 'Bar', IQueryBuilder::PARAM_STR))
* </code>
*
* @param string $name
*
* @return IParameter
*/
public function createParameter($name) {
return new Parameter(':' . $name);
}
/**
* Creates a new function
*
* Attention: Column names inside the call have to be quoted before hand
*
* Example:
* <code>
* $qb = $conn->getQueryBuilder();
* $qb->select($qb->createFunction('COUNT(*)'))
* ->from('users', 'u')
* echo $qb->getSQL(); // SELECT COUNT(*) FROM `users` u
* </code>
* <code>
* $qb = $conn->getQueryBuilder();
* $qb->select($qb->createFunction('COUNT(`column`)'))
* ->from('users', 'u')
* echo $qb->getSQL(); // SELECT COUNT(`column`) FROM `users` u
* </code>
*
* @param string $call
*
* @return IQueryFunction
*/
public function createFunction($call) {
return new QueryFunction($call);
}
/**
* Used to get the id of the last inserted element
* @return int
* @throws \BadMethodCallException When being called before an insert query has been run.
*/
public function getLastInsertId() {
if ($this->getType() === \Doctrine\DBAL\Query\QueryBuilder::INSERT && $this->lastInsertedTable) {
// lastInsertId() needs the prefix but no quotes
$table = $this->prefixTableName($this->lastInsertedTable);
return (int) $this->connection->lastInsertId($table);
}
throw new \BadMethodCallException('Invalid call to getLastInsertId without using insert() before.');
}
/**
* Returns the table name quoted and with database prefix as needed by the implementation
*
* @param string $table
* @return string
*/
public function getTableName($table) {
$table = $this->prefixTableName($table);
return $this->helper->quoteColumnName($table);
}
/**
* Returns the table name with database prefix as needed by the implementation
*
* @param string $table
* @return string
*/
protected function prefixTableName($table) {
if ($this->automaticTablePrefix === false || \strpos($table, '*PREFIX*') === 0) {
return $table;
}
return '*PREFIX*' . $table;
}
/**
* Returns the column name quoted and with table alias prefix as needed by the implementation
*
* @param string $column
* @param string $tableAlias
* @return string
*/
public function getColumnName($column, $tableAlias = '') {
if ($tableAlias !== '') {
$tableAlias .= '.';
}
return $this->helper->quoteColumnName($tableAlias . $column);
}
}