Yiisoft\Db\Pgsql\DMLQueryBuilder

Complexity

Total Complexity

27

Size/Duplication

Total Lines	275
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	2
Bugs	0	Features	0

7 Methods

Rating	Name	Duplication	Size	Complexity
A	insert()	0	3	1
A	insertEx()	0	20	4
A	__construct()	0	6	1
A	update()	0	9	2
B	upsert()	0	55	7
A	resetSequence()	0	25	5
B	normalizeTableRowData()	0	29	7

<?php

declare(strict_types=1);

namespace Yiisoft\Db\Pgsql;

use JsonException;
use PDO;
use Yiisoft\Db\Command\Param;
use Yiisoft\Db\Exception\Exception;
use Yiisoft\Db\Exception\InvalidArgumentException;
use Yiisoft\Db\Exception\InvalidConfigException;
use Yiisoft\Db\Exception\NotSupportedException;
use Yiisoft\Db\Expression\Expression;
use Yiisoft\Db\QueryBuilder\DMLQueryBuilder as AbstractDMLQueryBuilder;
use Yiisoft\Db\QueryBuilder\QueryBuilderInterface;
use Yiisoft\Db\Query\Query;
use Yiisoft\Db\Query\QueryInterface;
use Yiisoft\Db\Schema\QuoterInterface;
use Yiisoft\Db\Schema\Schema;

This use statement conflicts with another class in this namespace, Yiisoft\Db\Pgsql\Schema. Consider defining an alias.

use Yiisoft\Db\Schema\SchemaInterface;

use function implode;
use function is_array;
use function is_string;
use function reset;

final class DMLQueryBuilder extends AbstractDMLQueryBuilder
{
    public function __construct(
        private QueryBuilderInterface $queryBuilder,
        private QuoterInterface $quoter,
        private SchemaInterface $schema
    ) {
        parent::__construct($queryBuilder, $quoter, $schema);
    }

    public function insertEx(string $table, QueryInterface|array $columns, array &$params = []): string
    {
        $sql = $this->insert($table, $columns, $params);

        $tableSchema = $this->schema->getTableSchema($table);

        $returnColumns = [];
        if ($tableSchema !== null) {
            $returnColumns = $tableSchema->getPrimaryKey();
        }

        if (!empty($returnColumns)) {
            $returning = [];
            foreach ($returnColumns as $name) {
                $returning[] = $this->quoter->quoteColumnName($name);
            }
            $sql .= ' RETURNING ' . implode(', ', $returning);
        }

        return $sql;
    }

    /**
     * Creates an INSERT SQL statement.
     *
     * For example,
     *
     * ```php
     * $sql = $queryBuilder->insert('user', [
     *     'name' => 'Sam',
     *     'age' => 30,
     * ], $params);
     * ```
     *
     * The method will properly escape the table and column names.
     *
     * @param string $table the table that new rows will be inserted into.
     * @param array|QueryInterface $columns the column data (name => value) to be inserted into the table or instance of
     * {@see Query} to perform INSERT INTO ... SELECT SQL statement. Passing of {@see Query}.
     * @param array $params the binding parameters that will be generated by this method. They should be bound to the
     * DB command later.
     *
     * @throws Exception|InvalidArgumentException|InvalidConfigException|NotSupportedException
     *
     * @return string the INSERT SQL
     *
     * @psalm-suppress UndefinedInterfaceMethod
     * @psalm-suppress MixedArgument
     */
    public function insert(string $table, QueryInterface|array $columns, array &$params = []): string
    {
        return parent::insert($table, $this->normalizeTableRowData($table, $columns), $params);
    }

    /**
     * Creates a SQL statement for resetting the sequence value of a table's primary key.
     *
     * The sequence will be reset such that the primary key of the next new row inserted will have the specified value
     * or 1.
     *
     * @param string $tableName the name of the table whose primary key sequence will be reset.
     * @param int|string|null $value the value for the primary key of the next new row inserted. If this is not set, the
     * next new row's primary key will have a value 1.
     *
     * @throws Exception|InvalidArgumentException if the table does not exist or there is no sequence
     * associated with the table.
     *
     * @return string the SQL statement for resetting sequence.
     */
    public function resetSequence(string $tableName, int|string $value = null): string
    {
        $table = $this->schema->getTableSchema($tableName);

        if ($table !== null && ($sequence = $table->getSequenceName()) !== null) {
            /**
             * {@see http://www.postgresql.org/docs/8.1/static/functions-sequence.html}
             */
            $sequence = $this->quoter->quoteTableName($sequence);
            $tableName = $this->quoter->quoteTableName($tableName);

            if ($value === null) {
                $pk = $table->getPrimaryKey();
                $key = $this->quoter->quoteColumnName(reset($pk));
                $value = "(SELECT COALESCE(MAX($key),0) FROM $tableName)+1";
            }

            return "SELECT SETVAL('$sequence',$value,false)";
        }

        if ($table === null) {
            throw new InvalidArgumentException("Table not found: '$tableName'.");
        }

        throw new InvalidArgumentException("There is not sequence associated with table '$tableName'.");
    }

    /**
     * Creates an UPDATE SQL statement.
     *
     * For example,
     *
     * ```php
     * $params = [];
     * $sql = $queryBuilder->update('user', ['status' => 1], 'age > 30', $params);
     * ```
     *
     * The method will properly escape the table and column names.
     *
     * @param string $table the table to be updated.
     * @param array $columns the column data (name => value) to be updated.
     * @param array|string $condition the condition that will be put in the WHERE part. Please refer to
     * {@see Query::where()} on how to specify condition.
     * @param array $params the binding parameters that will be modified by this method so that they can be bound to the
     * DB command later.
     *
     * @return string the UPDATE SQL.
     *
     * @psalm-suppress UndefinedInterfaceMethod
     */
    public function update(string $table, array $columns, array|string $condition, array &$params = []): string
    {
        $normalizeTableRowData = $this->normalizeTableRowData($table, $columns);

        return parent::update(
            $table,
            is_array($normalizeTableRowData) ? $normalizeTableRowData : [],

The condition is_array($normalizeTableRowData) is always true.

            $condition,
            $params,
        );
    }

    /**
     * Creates an SQL statement to insert rows into a database table if they do not already exist (matching unique
     * constraints), or update them if they do.
     *
     * For example,
     *
     * ```php
     * $sql = $queryBuilder->upsert('pages', [
     *     'name' => 'Front page',
     *     'url' => 'http://example.com/', // url is unique
     *     'visits' => 0,
     * ], [
     *     'visits' => new \Yiisoft\Db\Expression('visits + 1'),
     * ], $params);
     * ```
     *
     * The method will properly escape the table and column names.
     *
     * @param string $table the table that new rows will be inserted into/updated in.
     * @param array|QueryInterface $insertColumns the column data (name => value) to be inserted into the table or
     * instance of {@see Query} to perform `INSERT INTO ... SELECT` SQL statement.
     * @param array|bool|QueryInterface $updateColumns the column data (name => value) to be updated if they already
     * exist.
     * If `true` is passed, the column data will be updated to match the insert column data.
     * If `false` is passed, no update will be performed if the column data already exists.
     * @param array $params the binding parameters that will be generated by this method.
     * They should be bound to the DB command later.
     *
     * @throws Exception|InvalidConfigException|InvalidConfigException|JsonException|NotSupportedException
     * if this is not supported by the underlying DBMS.
     *
     * @return string the resulting SQL.
     *
     * @link https://www.postgresql.org/docs/9.5/static/sql-insert.html#SQL-ON-CONFLICT
     * @link https://stackoverflow.com/questions/1109061/insert-on-duplicate-update-in-postgresql/8702291#8702291
     *
     * @psalm-suppress UndefinedInterfaceMethod
     */
    public function upsert(
        string $table,
        QueryInterface|array $insertColumns,
        $updateColumns,
        array &$params = []
    ): string {
        $insertColumns = $this->normalizeTableRowData($table, $insertColumns);

        if (!is_bool($updateColumns)) {
            $updateColumns = $this->normalizeTableRowData($table, $updateColumns);
        }

        $insertSql = $this->insert($table, $insertColumns, $params);

        /** @var array $uniqueNames */
        [$uniqueNames, , $updateNames] = $this->prepareUpsertColumns(
            $table,
            $insertColumns,
            $updateColumns,
        );

        if (empty($uniqueNames)) {
            return $insertSql;
        }

        if ($updateNames === []) {

The condition $updateNames === array() is always false.

            /** there are no columns to update */
            $updateColumns = false;
        }

        if ($updateColumns === false) {
            return "$insertSql ON CONFLICT DO NOTHING";
        }

        if ($updateColumns === true) {
            $updateColumns = [];

            /** @var string $name */
            foreach ($updateNames as $name) {

The expression $updateNames of type null is not traversable.

                $updateColumns[$name] = new Expression(
                    'EXCLUDED.' . $this->quoter->quoteColumnName($name)
                );
            }
        }

        /**
         * @var array $updateColumns
         *
         * @psalm-var string[] $uniqueNames
         * @psalm-var string[] $updates
         */
        [$updates, $params] = $this->prepareUpdateSets($table, $updateColumns, $params);

        return $insertSql
            . ' ON CONFLICT (' . implode(', ', $uniqueNames) . ') DO UPDATE SET ' . implode(', ', $updates);
    }

    /**
     * Normalizes data to be saved into the table, performing extra preparations and type converting, if necessary.
     *
     * @param string $table the table that data will be saved into.
     * @param array|QueryInterface $columns the column data (name => value) to be saved into the table or instance of
     * {@see QueryInterface} to perform INSERT INTO ... SELECT SQL statement. Passing of
     * {@see QueryInterface}.
     *
     * @return array|QueryInterface normalized columns.
     */
    private function normalizeTableRowData(string $table, QueryInterface|array $columns): QueryInterface|array
    {
        if ($columns instanceof QueryInterface) {

$columns is never a sub-type of Yiisoft\Db\Query\QueryInterface.

            return $columns;
        }

        $tableSchema = $this->schema->getTableSchema($table);

        if ($tableSchema === null) {
            return $columns;
        }

        $columns = $this->normalizeColumnNames($table, $columns);

        $columnSchemas = $tableSchema->getColumns();

        /** @psalm-var mixed $value */
        foreach ($columns as $name => $value) {
            if (
                isset($columnSchemas[$name]) &&
                $columnSchemas[$name]->getType() === Schema::TYPE_BINARY &&
                is_string($value)
            ) {
                /** explicitly setup PDO param type for binary column */
                $columns[$name] = new Param($value, PDO::PARAM_LOB);
            }
        }

        return $columns;
    }
}