database/src/SelectQuery.php at master · selective-php/database · GitHub

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<?php

namespace Selective\Database;

use PDO;

use PDOStatement;

use RuntimeException;

/**

* Select Query.

final class SelectQuery implements QueryInterface

{

/**

* @var Connection

private Connection $connection;

/**

* @var PDO

private PDO $pdo;

/**

* @var Quoter

private Quoter $quoter;

/**

* @var array

private array $columns = [];

/**

* @var string|null

private ?string $alias = null;

/**

* @var string|array

private $from = '';

/**

* @var array

private array $join = [];

/**

* @var array

private array $union = [];

/**

* @var Condition Where conditions

private Condition $condition;

/**

* @var array

private array $orderBy = [];

/**

* @var array

private array $groupBy = [];

/**

* @var int|null

private ?int $limit = null;

/**

* @var int|null

private ?int $offset = null;

/**

* @var string

private string $distinct = '';

/**

* @var string

private string $calcFoundRows = '';

/**

* @var string

private string $bufferResult = '';

/**

* @var string

private string $resultSize = '';

/**

* @var string

private string $straightJoin = '';

/**

* @var string

private string $highPriority = '';

/**

* The constructor.

* @param Connection $connection The connection

public function __construct(Connection $connection)

{

$this->connection = $connection;

$this->pdo = $connection->getPdo();

$this->quoter = $connection->getQuoter();

$this->condition = new Condition($connection, $this);

}

/**

* Distinct.

* @return self

public function distinct(): self

{

$this->distinct = 'DISTINCT';

return $this;

}

/**

* Distinct row.

* @return self

public function distinctRow(): self

{

$this->distinct = 'DISTINCTROW';

return $this;

}

/**

* Distinct row.

* @return self

public function straightJoin(): self

{

$this->straightJoin = 'STRAIGHT_JOIN';

return $this;

}

/**

* High Priority.

* @return self

public function highPriority(): self

{

$this->highPriority = 'HIGH_PRIORITY';

return $this;

}

/**

* Small Result.

* @return self

public function smallResult(): self

{

$this->resultSize = 'SQL_SMALL_RESULT';

return $this;

}

/**

* Big Result.

* @return self

public function bigResult(): self

{

$this->resultSize = 'SQL_BIG_RESULT';

return $this;

}

/**

* Buffer Result.

* @return self

public function bufferResult(): self

{

$this->bufferResult = 'SQL_BUFFER_RESULT';

return $this;

}

/**

* Calc Found Rows.

* @return self

public function calcFoundRows(): self

{

$this->calcFoundRows = 'SQL_CALC_FOUND_ROWS';

return $this;

}

/**

* Adds new fields to be returned by a `SELECT` statement when this query is

* executed. Fields can be passed as an array of strings, array of expression

* objects, a single expression or a single string.

* If an array is passed, keys will be used to alias fields using the value as the

* real field to be aliased. It is possible to alias strings, Expression objects or

* even other Query objects.

* This method will append any passed argument to the list of fields to be selected.

* @param array $columns The columns as array

* @return self

public function columns(array $columns): self

{

if (empty($this->columns)) {

$this->columns = $columns;

} else {

foreach ($columns as $column) {

$this->columns[] = $column;

}

return $this;

}

/**

* Alias for sub selects.

* @param string $alias The alias

* @return self

public function alias(string $alias): self

{

$this->alias = $alias;

return $this;

}

/**

* From.

* @param string|array $table Table name

* @return self

public function from($table): self

{

$this->from = $table;

return $this;

}

/**

* UNION is used to combine the result from multiple

* SELECT statements into a single result set.

* @param SelectQuery $query The query to combine

* @return self

public function union(SelectQuery $query): self

{

$this->union[] = ['', $query->build(false)];

return $this;

}

/**

* UNION ALL is used to combine the result from multiple

* SELECT statements into a single result set.

* @param SelectQuery $query The query to combine

* @return self

public function unionAll(SelectQuery $query): self

{

$this->union[] = ['ALL', $query->build(false)];

return $this;

}

/**

* UNION DISTINCT is used to combine the result from multiple

* SELECT statements into a single result set.

* @param SelectQuery $query The query to combine

* @return self

public function unionDistinct(SelectQuery $query): self

{

$this->union[] = ['DISTINCT', $query->build(false)];

return $this;

}

/**

* Join.

* @param string|array $table Table name

* @param string $leftField Name of the left field

* @param string $comparison Comparison (=,<,>,<=,>=,<>,in, not in, between, not between)

* @param mixed $rightField Value of the right field

* @return self

public function join($table, string $leftField, string $comparison, $rightField): self

{

$this->join[] = ['inner', $table, $leftField, $comparison, $rightField];

return $this;

}

/**

* Inner Join (alias).

* @param string|array $table Table name

* @param string $leftField Name of the left field

* @param string $comparison Comparison (=,<,>,<=,>=,<>,in, not in, between, not between)

* @param mixed $rightField Value of the right field

* @return self

public function innerJoin($table, string $leftField, string $comparison, $rightField): self

{

return $this->join($table, $leftField, $comparison, $rightField);

}

/**

* Left Join.

* @param string|array $table Table name

* @param string $leftField Name of the left field

* @param string $comparison Comparison (=,<,>,<=,>=,<>,in, not in, between, not between)

* @param mixed $rightField Value of the right field

* @return self

public function leftJoin($table, string $leftField, string $comparison, $rightField): self

{

$this->join[] = ['left', $table, $leftField, $comparison, $rightField];

return $this;

}

/**

* Join with complex conditions.

* @param string|array $table Table name

* @param string $conditions The ON conditions e.g. 'user.id = article.user_id'

* @return self

public function joinRaw($table, string $conditions): self

{

$this->join[] = ['inner', $table, new RawExp($conditions), null, null, null];

return $this;

}

/**

* Left join with complex conditions.

* @param string|array $table Table name

* @param string $conditions The ON conditions e.g. 'user.id = article.user_id'

* @return self

public function leftJoinRaw($table, string $conditions): self

{

$this->join[] = ['left', $table, new RawExp($conditions), null, null, null];

return $this;

}

/**

* Where AND condition.

* @param array ...$conditions The conditions (field, comparison, value)

* or (field, comparison, new RawExp('table.field'))

* or new RawExp('...')

* @return self

public function where(...$conditions): self

{

$this->condition->where($conditions);

return $this;

}

/**

* Add a raw AND WHERE condition.

* @param string $condition The raw where conditions e.g. 'user.id = article.user_id'

* @return self

public function whereRaw(string $condition): self

{

$this->condition->where([new RawExp($condition)]);

return $this;

}

/**

* Where OR condition.

* @param array ...$conditions The conditions (field, comparison, value)

* or (field, comparison, new RawExp('table.field'))

* or new RawExp('...')

* @return self

public function orWhere(...$conditions): self

{

$this->condition->orWhere($conditions);

return $this;

}

/**

* Add a raw OR WHERE condition.

* @param string $condition The raw where conditions e.g. 'user.id = article.user_id'

* @return self

public function orWhereRaw(string $condition): self

{

$this->condition->orWhere([new RawExp($condition)]);

return $this;

}

/**

* The whereColumn method may be used to verify that two columns are equal.

* @param string $column Name of the first column

* @param string $comparison The comparison type (=,>=,<=,<>,is,is not, ....)

* @param string $secondColumn Name of the second column

* @return self

public function whereColumn(string $column, string $comparison, string $secondColumn): self

{

$secondColumn = $this->quoter->quoteName($secondColumn);

$this->condition->where([$column, $comparison, new RawExp($secondColumn)]);

return $this;

}

/**

* The whereColumn method may be used to verify that two columns are equal.

* @param string $column Name of the first column

* @param string $comparison The comparison (=,>=,<=,<>,is,is not, ....)

* @param string $secondColumn Name of the second column

* @return self

public function orWhereColumn(string $column, string $comparison, string $secondColumn): self

{

$secondColumn = $this->quoter->quoteName($secondColumn);

$this->condition->orWhere([$column, $comparison, new RawExp($secondColumn)]);

return $this;

}

/**

* Order by.

* @param array ...$fields Column name(s)

* @return self

public function orderBy(...$fields): self

{

$this->orderBy = $fields;

return $this;

}

/**

* Group by.

* @param array ...$fields The fields

* @return self

public function groupBy(...$fields): self

{

$this->groupBy = $fields;

return $this;

}

/**

* Add AND having condition.

* @param array ...$conditions The conditions (field, comparison, value)

* or (field, comparison, new RawExp('table.field'))

* or new RawExp('...')

* @return self

public function having(...$conditions): self

{

$this->condition->having($conditions);

return $this;

}

/**

* Add OR having condition.

* @param array ...$conditions The conditions (field, comparison, value)

* or (field, comparison, new RawExp('table.field'))

* or new RawExp('...')

* @return self

public function orHaving(...$conditions): self

{

$this->condition->orHaving($conditions);

return $this;

}

/**

* Add AND having condition.

* @param string $condition The raw HAVING conditions e.g. 'user.id = article.user_id'

* @return self

public function havingRaw(string $condition): self

{

$this->condition->having([new RawExp($condition)]);

return $this;

}

/**

* Add OR having condition.

* @param string $condition The raw HAVING conditions e.g. 'user.id = article.user_id'

* @return self

public function orHavingRaw(string $condition): self

{

$this->condition->orHaving([new RawExp($condition)]);

return $this;

}

/**

* Limit the number of rows returned.

* @param int $rowCount Row count

* @return self

public function limit(int $rowCount): self

{

$this->limit = $rowCount;

return $this;

}

/**

* Offset of the first row to return.

* @param int $offset Offset

* @return self

public function offset(int $offset): self

{

$this->offset = $offset;

return $this;

}

/**

* Returns a Raw Expression.

* @param string $value A raw value. Be careful!

* @return RawExp Raw Expression

public function raw(string $value): RawExp

{

return new RawExp($value);

}

/**

* Executes an SQL statement, returning a result set as a PDOStatement object.

* @throws RuntimeException

* @return PDOStatement The pdo statement

public function execute(): PDOStatement

{

$statement = $this->pdo->query($this->build());

if (!$statement instanceof PDOStatement) {

throw new RuntimeException('Query could not be created');

}

return $statement;

}

/**

* Prepares a statement for execution and returns a statement object.

* @throws RuntimeException

* @return PDOStatement The pdo statement

public function prepare(): PDOStatement

{

$statement = $this->pdo->prepare($this->build());

if (!$statement instanceof PDOStatement) {

throw new RuntimeException('The database statement could not be prepared.');

}

return $statement;

}

/**

* SQL functions.

* @return FunctionBuilder The function builder

public function func(): FunctionBuilder

{

return new FunctionBuilder($this->connection);

}

/**

* Build a SQL string.

* @param bool $complete The complete

* @return string SQL string

public function build(bool $complete = true): string

{

$builder = new SelectQueryBuilder($this->connection);

$sql = [];

$sql = $builder->getSelectSql(

$sql,

[

$this->distinct,

$this->highPriority,

$this->straightJoin,

$this->resultSize,

$this->bufferResult,

$this->calcFoundRows,

]

);

$sql = $builder->getColumnsSql($sql, $this->columns);

$sql = $builder->getFromSql($sql, $this->from);

$sql = $builder->getJoinSql($sql, $this->join);

$sql = $this->condition->getWhereSql($sql);

$sql = $builder->getGroupBySql($sql, $this->groupBy);

$sql = $this->condition->getHavingSql($sql);

$sql = $builder->getOrderBySql($sql, $this->orderBy);

$sql = $builder->getLimitSql($sql, $this->limit, $this->offset);

$sql = $builder->getUnionSql($sql, $this->union);

$result = trim(implode(' ', $sql));

$result = $builder->getAliasSql($result, $this->alias);

if ($complete) {

$result = trim($result) . ';';

}

return $result;

}

database/src/SelectQuery.php at master · selective-php/database · GitHub

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