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SQL Server adapter uses nvarchar(max) instead of ntext and always updates default constraint #1977

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SQL Server adapter uses nvarchar(max) instead of ntext and always updates default constraint #1977

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f312562
Force SQL Server adapter to always drop/readd the default constraint
Apr 28, 2021
b0bb624
Remove use of NTEXT SQL type and use NVARCHAR(MAX) instead
Apr 28, 2021
9b9de7a
Remove unneeded else
Apr 29, 2021
1d80a36
Update does not equals check to does not equal with type.
Sep 3, 2021
f8e3a65
camelCase char_length argument.
Sep 3, 2021
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26 changes: 13 additions & 13 deletions src/Phinx/Db/Adapter/SqlServerAdapter.php
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Original file line number Diff line number Diff line change
Expand Up @@ -458,7 +458,7 @@ public function getColumns($tableName)
$rows = $this->fetchAll($sql);
foreach ($rows as $columnInfo) {
try {
$type = $this->getPhinxType($columnInfo['type']);
$type = $this->getPhinxType($columnInfo['type'], $columnInfo['char_length']);
} catch (UnsupportedColumnTypeException $e) {
$type = Literal::from($columnInfo['type']);
}
Expand All @@ -471,7 +471,8 @@ public function getColumns($tableName)
->setIdentity($columnInfo['identity'] === '1')
->setComment($this->getColumnComment($columnInfo['table_name'], $columnInfo['name']));

if (!empty($columnInfo['char_length'])) {
if ($type !== self::PHINX_TYPE_TEXT && !empty($columnInfo['char_length'])) {
// Do not set a limit for text, as that is handled elsewhere.
$column->setLimit($columnInfo['char_length']);
}

Expand Down Expand Up @@ -609,9 +610,6 @@ protected function getChangeDefault($tableName, Column $newColumn)
protected function getChangeColumnInstructions($tableName, $columnName, Column $newColumn)
{
$columns = $this->getColumns($tableName);
$changeDefault =
$newColumn->getDefault() !== $columns[$columnName]->getDefault() ||
$newColumn->getType() !== $columns[$columnName]->getType();

$instructions = new AlterInstructions();

Expand All @@ -621,9 +619,7 @@ protected function getChangeColumnInstructions($tableName, $columnName, Column $
);
}

if ($changeDefault) {
$instructions->merge($this->getDropDefaultConstraint($tableName, $newColumn->getName()));
}
$instructions->merge($this->getDropDefaultConstraint($tableName, $newColumn->getName()));

$instructions->addPostStep(sprintf(
'ALTER TABLE %s ALTER COLUMN %s %s',
Expand All @@ -636,9 +632,7 @@ protected function getChangeColumnInstructions($tableName, $columnName, Column $
$instructions->addPostStep($this->getColumnCommentSqlDefinition($newColumn, $tableName));
}

if ($changeDefault) {
$instructions->merge($this->getChangeDefault($tableName, $newColumn));
}
$instructions->merge($this->getChangeDefault($tableName, $newColumn));

return $instructions;
}
Expand Down Expand Up @@ -1069,7 +1063,7 @@ public function getSqlType($type, $limit = null)
case static::PHINX_TYPE_CHAR:
return ['name' => 'nchar', 'limit' => 255];
case static::PHINX_TYPE_TEXT:
return ['name' => 'ntext'];
return ['name' => 'nvarchar', 'limit' => 'max'];
case static::PHINX_TYPE_INTEGER:
return ['name' => 'int'];
case static::PHINX_TYPE_TINY_INTEGER:
Expand Down Expand Up @@ -1109,16 +1103,22 @@ public function getSqlType($type, $limit = null)
* @internal param string $sqlType SQL type
*
* @param string $sqlType SQL Type definition
* @param int|null $charLength Column length value
*
* @throws \Phinx\Db\Adapter\UnsupportedColumnTypeException
*
* @return string Phinx type
*/
public function getPhinxType($sqlType)
public function getPhinxType($sqlType, $charLength = null)
{
switch ($sqlType) {
case 'nvarchar':
case 'varchar':
if ($charLength == -1) {
// max char length
return static::PHINX_TYPE_TEXT;
}

return static::PHINX_TYPE_STRING;
case 'char':
case 'nchar':
Expand Down