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Add "replace" option with ON DUPLICATE KEY UPDATE #234

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Add "replace" option with ON DUPLICATE KEY UPDATE #234

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53 changes: 48 additions & 5 deletions src/Ifsnop/Mysqldump/Mysqldump.php
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Original file line number Diff line number Diff line change
Expand Up @@ -158,6 +158,7 @@ public function __construct(
'no-autocommit' => true,
'no-create-info' => false,
'lock-tables' => true,
'replace' => false,
'routines' => false,
'single-transaction' => true,
'skip-triggers' => false,
Expand Down Expand Up @@ -804,7 +805,8 @@ private function getTableColumnTypes($tableName)
'is_blob' => $types['is_blob'],
'type' => $types['type'],
'type_sql' => $col['Type'],
'is_virtual' => $types['is_virtual']
'is_virtual' => $types['is_virtual'],
'key_sql' => $col['Key'],
);
}

Expand Down Expand Up @@ -1117,13 +1119,17 @@ private function listValues($tableName)
$resultSet = $this->dbHandler->query($stmt);
$resultSet->setFetchMode(PDO::FETCH_ASSOC);

$ignore = $this->dumpSettings['insert-ignore'] ? ' IGNORE' : '';
$replace = $this->dumpSettings['replace'] && $this->getHasPrimaryKey($tableName);
$strUpdates = $replace ? $this->getUpdateColumnsOnDuplicate($tableName) : '';
$extendedInsert = $this->dumpSettings['extended-insert'] && !$replace;
$ignore = $this->dumpSettings['insert-ignore'] && !$replace ? ' IGNORE' : '';


$count = 0;
foreach ($resultSet as $row) {
$count++;
$vals = $this->prepareColumnValues($tableName, $row);
if ($onlyOnce || !$this->dumpSettings['extended-insert']) {
if ($onlyOnce || !$extendedInsert) {
if ($this->dumpSettings['complete-insert']) {
$lineSize += $this->compressManager->write(
"INSERT$ignore INTO `$tableName` (".
Expand All @@ -1135,12 +1141,14 @@ private function listValues($tableName)
"INSERT$ignore INTO `$tableName` VALUES (".implode(",", $vals).")"
);
}
if ($replace) {
$lineSize += $this->compressManager->write(" ON DUPLICATE KEY UPDATE {$strUpdates}");
}
$onlyOnce = false;
} else {
$lineSize += $this->compressManager->write(",(".implode(",", $vals).")");
}
if (($lineSize > $this->dumpSettings['net_buffer_length']) ||
!$this->dumpSettings['extended-insert']) {
if (($lineSize > $this->dumpSettings['net_buffer_length']) || !$extendedInsert) {
$onlyOnce = true;
$lineSize = $this->compressManager->write(";".PHP_EOL);
}
Expand All @@ -1158,6 +1166,41 @@ private function listValues($tableName)
}
}

/**
* Does the table have a primary key
*
* @param string $tableName Name of table
*
* @return bool
*/
public function getHasPrimaryKey($tableName)
{
foreach ($this->tableColumnTypes[$tableName] as $colName => $colType) {
if ($colType['key_sql'] == 'PRI') {
return true;
}
}
return false;
}

/**
* Build SQL List of all non-primary key columns on current table which will be used for update on duplicate key
*
* @param string $tableName Name of table to get columns
*
* @return string update columns for sql sentence where update on duplicate key
*/
public function getUpdateColumnsOnDuplicate($tableName)
{
$colUpdates = array();
foreach ($this->tableColumnTypes[$tableName] as $colName => $colType) {
if ($colType['key_sql'] != 'PRI') {
$colUpdates[] = "`${colName}`=`${colName}`";
}
}
return implode(',',$colUpdates);
}

/**
* Table rows extractor, append information prior to dump
*
Expand Down