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<?php |
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namespace Lagdo\DbAdmin\Driver\Sqlite\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\Entity\IndexEntity; |
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use Lagdo\DbAdmin\Driver\Entity\ForeignKeyEntity; |
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use Lagdo\DbAdmin\Driver\Db\ConnectionInterface; |
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use Lagdo\DbAdmin\Driver\Db\Table as AbstractTable; |
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class Table extends AbstractTable |
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{ |
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/** |
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* @inheritDoc |
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*/ |
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public function tableHelp(string $name) |
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{ |
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if ($name == "sqlite_sequence") { |
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return "fileformat2.html#seqtab"; |
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} |
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if ($name == "sqlite_master") { |
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return "fileformat2.html#$name"; |
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} |
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} |
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/** |
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* @param string $table |
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* |
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* @return array |
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*/ |
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private function queryStatus(string $table = '') |
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{ |
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$query = "SELECT name AS Name, type AS Engine, 'rowid' AS Oid, '' AS Auto_increment " . |
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"FROM sqlite_master WHERE type IN ('table', 'view') " . |
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($table != "" ? "AND name = " . $this->driver->quote($table) : "ORDER BY name"); |
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return $this->driver->rows($query); |
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} |
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/** |
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* @param array $row |
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* |
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* @return TableEntity |
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*/ |
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private function makeStatus(array $row) |
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{ |
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$status = new TableEntity($row['Name']); |
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$status->engine = $row['Engine']; |
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$status->oid = $row['Oid']; |
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// $status->Auto_increment = $row['Auto_increment']; |
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$status->rows = $this->connection->result("SELECT COUNT(*) FROM " . $this->driver->escapeId($row["Name"])); |
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$tables[$row["Name"]] = $status; |
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return $status; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function tableStatus(string $table, bool $fast = false) |
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{ |
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$rows = $this->queryStatus($table); |
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if (!($row = reset($rows))) { |
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return null; |
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} |
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return $this->makeStatus($row); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function tablesStatuses(bool $fast = false) |
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{ |
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$tables = []; |
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$rows = $this->queryStatus(); |
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foreach ($rows as $row) { |
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$tables[$row["Name"]] = $this->makeStatus($row); |
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} |
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return $tables; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function isView(TableEntity $tableStatus) |
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{ |
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return $tableStatus->engine == "view"; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function supportForeignKeys(TableEntity $tableStatus) |
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{ |
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return !$this->connection->result("SELECT sqlite_compileoption_used('OMIT_FOREIGN_KEY')"); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function fields(string $table) |
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{ |
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$fields = []; |
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$primary = ""; |
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foreach ($this->driver->rows("PRAGMA table_info(" . $this->driver->table($table) . ")") as $row) { |
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$name = $row["name"]; |
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$type = strtolower($row["type"]); |
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$default = $row["dflt_value"]; |
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$field = new TableFieldEntity(); |
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$field->name = $name; |
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$field->type = (preg_match('~int~i', $type) ? "integer" : (preg_match('~char|clob|text~i', $type) ? |
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"text" : (preg_match('~blob~i', $type) ? "blob" : (preg_match('~real|floa|doub~i', $type) ? |
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"real" : "numeric")))); |
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$field->fullType = $type; |
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$field->default = (preg_match("~'(.*)'~", $default, $match) ? str_replace("''", "'", $match[1]) : |
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($default == "NULL" ? null : $default)); |
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$field->null = !$row["notnull"]; |
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$field->privileges = ["select" => 1, "insert" => 1, "update" => 1]; |
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$field->primary = $row["pk"]; |
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if ($row["pk"]) { |
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if ($primary != "") { |
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$fields[$primary]->autoIncrement = false; |
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} elseif (preg_match('~^integer$~i', $type)) { |
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$field->autoIncrement = true; |
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} |
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$primary = $name; |
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} |
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$fields[$field->name] = $field; |
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} |
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$query = "SELECT sql FROM sqlite_master WHERE type IN ('table', 'view') AND name = " . $this->driver->quote($table); |
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$result = $this->connection->result($query); |
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preg_match_all('~(("[^"]*+")+|[a-z0-9_]+)\s+text\s+COLLATE\s+(\'[^\']+\'|\S+)~i', |
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$result, $matches, PREG_SET_ORDER); |
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foreach ($matches as $match) { |
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$name = str_replace('""', '"', preg_replace('~^"|"$~', '', $match[1])); |
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if (isset($fields[$name])) { |
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$fields[$name]->collation = trim($match[3], "'"); |
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} |
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} |
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return $fields; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function indexes(string $table, ConnectionInterface $connection = null) |
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{ |
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if (!is_object($connection)) { |
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$connection = $this->connection; |
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} |
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$indexes = []; |
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$query = "SELECT sql FROM sqlite_master WHERE type = 'table' AND name = " . $this->driver->quote($table); |
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$result = $connection->result($query); |
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if (preg_match('~\bPRIMARY\s+KEY\s*\((([^)"]+|"[^"]*"|`[^`]*`)++)~i', $result, $match)) { |
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$indexes[""] = new IndexEntity(); |
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$indexes[""]->type = "PRIMARY"; |
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preg_match_all('~((("[^"]*+")+|(?:`[^`]*+`)+)|(\S+))(\s+(ASC|DESC))?(,\s*|$)~i', |
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$match[1], $matches, PREG_SET_ORDER); |
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foreach ($matches as $match) { |
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$indexes[""]->columns[] = $this->driver->unescapeId($match[2]) . $match[4]; |
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$indexes[""]->descs[] = (preg_match('~DESC~i', $match[5]) ? '1' : null); |
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} |
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} |
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if (!$indexes) { |
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foreach ($this->fields($table) as $name => $field) { |
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if ($field->primary) { |
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if (!isset($indexes[""])) { |
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$indexes[""] = new IndexEntity(); |
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} |
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$indexes[""]->type = "PRIMARY"; |
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$indexes[""]->columns = [$name]; |
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$indexes[""]->lengths = []; |
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$indexes[""]->descs = [null]; |
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} |
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} |
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} |
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$query = "SELECT name, sql FROM sqlite_master WHERE type = 'index' AND tbl_name = " . $this->driver->quote($table); |
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$results = $this->driver->keyValues($query, $connection); |
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foreach ($this->driver->rows("PRAGMA index_list(" . $this->driver->table($table) . ")", $connection) as $row) { |
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$index = new IndexEntity(); |
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$name = $row["name"]; |
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$index->type = $row["unique"] ? "UNIQUE" : "INDEX"; |
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$index->lengths = []; |
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$index->descs = []; |
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foreach ($this->driver->rows("PRAGMA index_info(" . $this->driver->escapeId($name) . ")", $connection) as $row1) { |
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$index->columns[] = $row1["name"]; |
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$index->descs[] = null; |
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} |
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if (preg_match('~^CREATE( UNIQUE)? INDEX ' . preg_quote($this->driver->escapeId($name) . ' ON ' . |
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$this->driver->escapeId($table), '~') . ' \((.*)\)$~i', $results[$name], $regs)) { |
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preg_match_all('/("[^"]*+")+( DESC)?/', $regs[2], $matches); |
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foreach ($matches[2] as $key => $val) { |
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if ($val) { |
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$index->descs[$key] = '1'; |
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} |
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} |
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} |
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if (!$indexes[""] || $index->type != "UNIQUE" || $index->columns != $indexes[""]->columns || |
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$index->descs != $indexes[""]->descs || !preg_match("~^sqlite_~", $name)) { |
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$indexes[$name] = $index; |
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} |
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} |
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return $indexes; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function foreignKeys(string $table) |
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{ |
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$foreignKeys = []; |
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foreach ($this->driver->rows("PRAGMA foreign_key_list(" . $this->driver->table($table) . ")") as $row) { |
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$name = $row["id"]; |
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if (!isset($foreignKeys[$name])) { |
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$foreignKeys[$name] = new ForeignKeyEntity(); |
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} |
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//! idf_unescape in SQLite2 |
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$foreignKeys[$name]->source[] = $row["from"]; |
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$foreignKeys[$name]->target[] = $row["to"]; |
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} |
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return $foreignKeys; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function alterTable(string $table, string $name, array $fields, array $foreign, |
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string $comment, string $engine, string $collation, int $autoIncrement, string $partitioning) |
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{ |
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$use_all_fields = ($table == "" || !empty($foreign)); |
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foreach ($fields as $field) { |
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if ($field[0] != "" || !$field[1] || $field[2]) { |
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$use_all_fields = true; |
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break; |
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} |
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} |
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$alter = []; |
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$originals = []; |
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foreach ($fields as $field) { |
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if ($field[1]) { |
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$alter[] = ($use_all_fields ? $field[1] : "ADD " . implode($field[1])); |
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if ($field[0] != "") { |
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$originals[$field[0]] = $field[1][0]; |
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} |
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} |
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} |
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if (!$use_all_fields) { |
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foreach ($alter as $val) { |
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if (!$this->driver->execute("ALTER TABLE " . $this->driver->table($table) . " $val")) { |
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return false; |
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} |
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} |
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if ($table != $name && !$this->driver->execute("ALTER TABLE " . $this->driver->table($table) . " RENAME TO " . $this->driver->table($name))) { |
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return false; |
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} |
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} elseif (!$this->recreateTable($table, $name, $alter, $originals, $foreign, $autoIncrement)) { |
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return false; |
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} |
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if ($autoIncrement) { |
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$this->driver->execute("BEGIN"); |
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$this->driver->execute("UPDATE sqlite_sequence SET seq = $autoIncrement WHERE name = " . $this->driver->quote($name)); // ignores error |
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if (!$this->driver->affectedRows()) { |
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$this->driver->execute("INSERT INTO sqlite_sequence (name, seq) VALUES (" . $this->driver->quote($name) . ", $autoIncrement)"); |
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} |
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$this->driver->execute("COMMIT"); |
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} |
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return true; |
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} |
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/** |
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* Recreate a table |
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* |
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* @param string $table |
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* @param string $name |
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* @param array $fields |
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* @param array $originals |
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* @param array $foreign |
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* @param integer $autoIncrement |
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* @param array $indexes |
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* |
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* @return bool |
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*/ |
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protected function recreateTable(string $table, string $name, array $fields, array $originals, |
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array $foreign, int $autoIncrement, array $indexes = []) |
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{ |
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if ($table != "") { |
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if (empty($fields)) { |
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foreach ($this->fields($table) as $key => $field) { |
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if (!empty($indexes)) { |
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$field->autoIncrement = 0; |
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} |
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$fields[] = $this->util->processField($field, $field); |
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$originals[$key] = $this->driver->escapeId($key); |
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} |
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} |
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$primary_key = false; |
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foreach ($fields as $field) { |
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if ($field[6]) { |
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$primary_key = true; |
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} |
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} |
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$drop_indexes = []; |
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foreach ($indexes as $key => $val) { |
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if ($val[2] == "DROP") { |
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$drop_indexes[$val[1]] = true; |
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unset($indexes[$key]); |
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} |
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} |
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foreach ($this->indexes($table) as $key_name => $index) { |
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$columns = []; |
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foreach ($index->columns as $key => $column) { |
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if (!$originals[$column]) { |
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continue 2; |
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} |
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$columns[] = $originals[$column] . ($index->descs[$key] ? " DESC" : ""); |
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} |
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if (!$drop_indexes[$key_name]) { |
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if ($index->type != "PRIMARY" || !$primary_key) { |
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$indexes[] = [$index->type, $key_name, $columns]; |
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} |
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} |
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} |
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foreach ($indexes as $key => $val) { |
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if ($val[0] == "PRIMARY") { |
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unset($indexes[$key]); |
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$foreign[] = " PRIMARY KEY (" . implode(", ", $val[2]) . ")"; |
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} |
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} |
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foreach ($this->foreignKeys($table) as $key_name => $foreignKey) { |
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foreach ($foreignKey->source as $key => $column) { |
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if (!$originals[$column]) { |
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continue 2; |
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} |
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$foreignKey->source[$key] = $this->driver->unescapeId($originals[$column]); |
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} |
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|
if (!isset($foreign[" $key_name"])) { |
344
|
|
|
$foreign[] = " " . $this->driver->formatForeignKey($foreignKey); |
345
|
|
|
} |
346
|
|
|
} |
347
|
|
|
$this->driver->execute("BEGIN"); |
348
|
|
|
} |
349
|
|
|
foreach ($fields as $key => $field) { |
350
|
|
|
$fields[$key] = " " . implode($field); |
351
|
|
|
} |
352
|
|
|
$fields = array_merge($fields, array_filter($foreign)); |
353
|
|
|
$tempName = ($table == $name ? "adminer_$name" : $name); |
354
|
|
|
if (!$this->driver->execute("CREATE TABLE " . $this->driver->table($tempName) . |
355
|
|
|
" (\n" . implode(",\n", $fields) . "\n)")) { |
356
|
|
|
// implicit ROLLBACK to not overwrite $this->driver->error() |
357
|
|
|
return false; |
358
|
|
|
} |
359
|
|
|
if ($table != "") { |
360
|
|
|
if ($originals && !$this->driver->execute("INSERT INTO " . $this->driver->table($tempName) . |
361
|
|
|
" (" . implode(", ", $originals) . ") SELECT " . implode( |
362
|
|
|
", ", |
363
|
|
|
array_map(function ($key) { |
364
|
|
|
return $this->driver->escapeId($key); |
365
|
|
|
}, array_keys($originals)) |
366
|
|
|
) . " FROM " . $this->driver->table($table))) { |
367
|
|
|
return false; |
368
|
|
|
} |
369
|
|
|
$triggers = []; |
370
|
|
|
foreach ($this->triggers($table) as $trigger_name => $timing_event) { |
371
|
|
|
$trigger = $this->trigger($trigger_name); |
372
|
|
|
$triggers[] = "CREATE TRIGGER " . $this->driver->escapeId($trigger_name) . " " . |
373
|
|
|
implode(" ", $timing_event) . " ON " . $this->driver->table($name) . "\n$trigger[Statement]"; |
374
|
|
|
} |
375
|
|
|
$autoIncrement = $autoIncrement ? 0 : |
376
|
|
|
$this->connection->result("SELECT seq FROM sqlite_sequence WHERE name = " . |
377
|
|
|
$this->driver->quote($table)); // if $autoIncrement is set then it will be updated later |
378
|
|
|
// drop before creating indexes and triggers to allow using old names |
379
|
|
|
if (!$this->driver->execute("DROP TABLE " . $this->driver->table($table)) || |
380
|
|
|
($table == $name && !$this->driver->execute("ALTER TABLE " . $this->driver->table($tempName) . |
381
|
|
|
" RENAME TO " . $this->driver->table($name))) || !$this->alterIndexes($name, $indexes) |
382
|
|
|
) { |
383
|
|
|
return false; |
384
|
|
|
} |
385
|
|
|
if ($autoIncrement) { |
386
|
|
|
$this->driver->execute("UPDATE sqlite_sequence SET seq = $autoIncrement WHERE name = " . $this->driver->quote($name)); // ignores error |
387
|
|
|
} |
388
|
|
|
foreach ($triggers as $trigger) { |
389
|
|
|
if (!$this->driver->execute($trigger)) { |
390
|
|
|
return false; |
391
|
|
|
} |
392
|
|
|
} |
393
|
|
|
$this->driver->execute("COMMIT"); |
394
|
|
|
} |
395
|
|
|
return true; |
396
|
|
|
} |
397
|
|
|
|
398
|
|
|
/** |
399
|
|
|
* @inheritDoc |
400
|
|
|
*/ |
401
|
|
|
public function alterIndexes(string $table, array $alter) |
402
|
|
|
{ |
403
|
|
|
foreach ($alter as $primary) { |
404
|
|
|
if ($primary[0] == "PRIMARY") { |
405
|
|
|
return $this->recreateTable($table, $table, [], [], [], 0, $alter); |
406
|
|
|
} |
407
|
|
|
} |
408
|
|
|
foreach (array_reverse($alter) as $val) { |
409
|
|
|
if (!$this->driver->execute($val[2] == "DROP" ? |
410
|
|
|
"DROP INDEX " . $this->driver->escapeId($val[1]) : |
411
|
|
|
$this->driver->sqlForCreateIndex($table, $val[0], $val[1], "(" . implode(", ", $val[2]) . ")") |
412
|
|
|
)) { |
413
|
|
|
return false; |
414
|
|
|
} |
415
|
|
|
} |
416
|
|
|
return true; |
417
|
|
|
} |
418
|
|
|
|
419
|
|
|
/** |
420
|
|
|
* @inheritDoc |
421
|
|
|
*/ |
422
|
|
|
public function trigger(string $trigger) |
423
|
|
|
{ |
424
|
|
|
if ($trigger == "") { |
425
|
|
|
return ["Statement" => "BEGIN\n\t;\nEND"]; |
|
|
|
|
426
|
|
|
} |
427
|
|
|
$idf = '(?:[^`"\s]+|`[^`]*`|"[^"]*")+'; |
428
|
|
|
$options = $this->triggerOptions(); |
429
|
|
|
preg_match("~^CREATE\\s+TRIGGER\\s*$idf\\s*(" . implode("|", $options["Timing"]) . |
430
|
|
|
")\\s+([a-z]+)(?:\\s+OF\\s+($idf))?\\s+ON\\s*$idf\\s*(?:FOR\\s+EACH\\s+ROW\\s)?(.*)~is", |
431
|
|
|
$this->connection->result("SELECT sql FROM sqlite_master WHERE type = 'trigger' AND name = " . |
432
|
|
|
$this->driver->quote($trigger)), $match); |
433
|
|
|
$of = $match[3]; |
434
|
|
|
return [ |
|
|
|
|
435
|
|
|
"Timing" => strtoupper($match[1]), |
436
|
|
|
"Event" => strtoupper($match[2]) . ($of ? " OF" : ""), |
437
|
|
|
"Of" => ($of[0] == '`' || $of[0] == '"' ? $this->driver->unescapeId($of) : $of), |
438
|
|
|
"Trigger" => $trigger, |
439
|
|
|
"Statement" => $match[4], |
440
|
|
|
]; |
441
|
|
|
} |
442
|
|
|
|
443
|
|
|
/** |
444
|
|
|
* @inheritDoc |
445
|
|
|
*/ |
446
|
|
|
public function triggers(string $table) |
447
|
|
|
{ |
448
|
|
|
$triggers = []; |
449
|
|
|
$options = $this->triggerOptions(); |
450
|
|
|
$query = "SELECT * FROM sqlite_master WHERE type = 'trigger' AND tbl_name = " . $this->driver->quote($table); |
451
|
|
|
foreach ($this->driver->rows($query) as $row) { |
452
|
|
|
preg_match('~^CREATE\s+TRIGGER\s*(?:[^`"\s]+|`[^`]*`|"[^"]*")+\s*(' . |
453
|
|
|
implode("|", $options["Timing"]) . ')\s*(.*?)\s+ON\b~i', $row["sql"], $match); |
454
|
|
|
$triggers[$row["name"]] = new Trigger($match[1], $match[2]); |
|
|
|
|
455
|
|
|
} |
456
|
|
|
return $triggers; |
457
|
|
|
} |
458
|
|
|
|
459
|
|
|
/** |
460
|
|
|
* @inheritDoc |
461
|
|
|
*/ |
462
|
|
|
public function triggerOptions() |
463
|
|
|
{ |
464
|
|
|
return [ |
465
|
|
|
"Timing" => ["BEFORE", "AFTER", "INSTEAD OF"], |
466
|
|
|
"Event" => ["INSERT", "UPDATE", "UPDATE OF", "DELETE"], |
467
|
|
|
"Type" => ["FOR EACH ROW"], |
468
|
|
|
]; |
469
|
|
|
} |
470
|
|
|
} |
471
|
|
|
|