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<?php |
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namespace Lagdo\DbAdmin\Driver\PgSql\Db; |
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use Lagdo\DbAdmin\Driver\Entity\TableFieldEntity; |
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use Lagdo\DbAdmin\Driver\Entity\TableEntity; |
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use Lagdo\DbAdmin\Driver\Db\ConnectionInterface; |
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use Lagdo\DbAdmin\Driver\Db\Query as AbstractQuery; |
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use function strtoupper; |
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class Query extends AbstractQuery |
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{ |
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/** |
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* @inheritDoc |
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*/ |
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protected function limitToOne(string $table, string $query, string $where) |
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{ |
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return (preg_match('~^INTO~', $query) ? $this->driver->getLimitClause($query, $where, 1, 0) : |
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" $query" . ($this->driver->isView($this->driver->tableStatusOrName($table)) ? $where : |
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" WHERE ctid = (SELECT ctid FROM " . $this->driver->escapeTableName($table) . $where . ' LIMIT 1)')); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function insertOrUpdate(string $table, array $rows, array $primary) |
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{ |
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foreach ($rows as $set) { |
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$update = []; |
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$where = []; |
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foreach ($set as $key => $val) { |
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$update[] = "$key = $val"; |
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if (isset($primary[$this->driver->unescapeId($key)])) { |
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$where[] = "$key = $val"; |
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} |
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} |
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if (!( |
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($where && $this->driver->execute("UPDATE " . $this->driver->escapeTableName($table) . |
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" SET " . implode(", ", $update) . " WHERE " . implode(" AND ", $where)) && |
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$this->driver->affectedRows()) || |
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$this->driver->execute("INSERT INTO " . $this->driver->escapeTableName($table) . |
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" (" . implode(", ", array_keys($set)) . ") VALUES (" . implode(", ", $set) . ")") |
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)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function lastAutoIncrementId() |
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{ |
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return '0'; // there can be several sequences |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function convertSearch(string $idf, array $val, TableFieldEntity $field) |
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{ |
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return (preg_match('~char|text' . (!preg_match('~LIKE~', $val["op"]) ? |
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'|date|time(stamp)?|boolean|uuid|' . $this->driver->numberRegex() : '') . |
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'~', $field->type) ? $idf : "CAST($idf AS text)" |
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); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function countRows(TableEntity $tableStatus, array $where) |
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{ |
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$query = "EXPLAIN SELECT * FROM " . $this->driver->escapeId($tableStatus->name) . |
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($where ? " WHERE " . implode(" AND ", $where) : ""); |
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if (preg_match("~ rows=([0-9]+)~", $this->driver->result($query), $regs)) |
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{ |
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return $regs[1]; |
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} |
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return 0; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function view(string $name) |
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{ |
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$status = $this->driver->tableStatus($name); |
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$type = strtoupper($status->engine); |
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return [ |
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'name' => $name, |
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'type' => $type, |
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'materialized' => ($type != 'VIEW'), |
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'select' => trim($this->driver->result("SELECT pg_get_viewdef(" . |
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$this->driver->result("SELECT oid FROM pg_class WHERE relnamespace = " . |
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"(SELECT oid FROM pg_namespace WHERE nspname = current_schema()) AND relname = " . |
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$this->driver->quote($name)) . ")")) |
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]; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function slowQuery(string $query, int $timeout) |
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{ |
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// $this->connection->timeout = 1000 * $timeout; |
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$this->driver->execute("SET statement_timeout = " . (1000 * $timeout)); |
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return $query; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function explain(ConnectionInterface $connection, string $query) |
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{ |
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return $connection->query("EXPLAIN $query"); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function user() |
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{ |
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return $this->driver->result("SELECT user"); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function schema() |
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{ |
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return $this->driver->result("SELECT current_schema()"); |
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} |
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} |
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lagdo /
dbadmin-driver-pgsql
