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Add DB::getIndexInfo()

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This commit is contained in:
Kijin Sung 2023-12-31 00:16:43 +09:00
parent a102f20766
commit f16da70c64
2 changed files with 67 additions and 1 deletions
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44
common/framework/DB.php
View file

@ -951,7 +951,7 @@ class DB
*/ */
public function getColumnInfo(string $table_name, string $column_name): ?object public function getColumnInfo(string $table_name, string $column_name): ?object
{ {
// If column information is not found, return false. // If column information is not found, return null.
$stmt = $this->_handle->query(sprintf("SHOW FIELDS FROM `%s` WHERE Field = '%s'", $this->addQuotes($this->_prefix . $table_name), $this->addQuotes($column_name))); $stmt = $this->_handle->query(sprintf("SHOW FIELDS FROM `%s` WHERE Field = '%s'", $this->addQuotes($this->_prefix . $table_name), $this->addQuotes($column_name)));
$column_info = $this->fetch($stmt); $column_info = $this->fetch($stmt);
if (!$column_info) if (!$column_info)
@ -1053,6 +1053,48 @@ class DB
return $result ? new Helpers\DBResultHelper : $this->getError(); return $result ? new Helpers\DBResultHelper : $this->getError();
} }
/**
* Get index information.
*
* @param string $table_name
* @param string $index_name
* @return ?object
*/
public function getIndexInfo(string $table_name, string $index_name): ?object
{
// If the index is not found, return null.
$stmt = $this->_handle->query(sprintf("SHOW INDEX FROM `%s` WHERE Key_name = '%s'", $this->addQuotes($this->_prefix . $table_name), $this->addQuotes($index_name)));
$index_info = $this->fetch($stmt, 0, 'array');
if (!$index_info)
{
return null;
}
// Get the list of columns included in the index.
$is_unique = false;
$columns = [];
foreach ($index_info as $column)
{
if (!$column->Non_unique)
{
$is_unique = true;
}
$columns[] = (object)[
'name' => $column->Column_name,
'size' => $column->Sub_part ? intval($column->Sub_part) : null,
'cardinality' => $column->Cardinality ? intval($column->Cardinality) : null,
];
}
// Return the result as an object.
return (object)array(
'name' => $column->Key_name,
'table' => $column->Table,
'is_unique' => $is_unique,
'columns' => $columns,
);
}
/** /**
* Add table prefixes to a query string. * Add table prefixes to a query string.
* *

24
tests/unit/framework/DBTest.php
View file

@ -189,6 +189,30 @@ class DBTest extends \Codeception\Test\Unit
$this->assertTrue($info->notnull); $this->assertTrue($info->notnull);
} }
public function testGetIndexInfo()
{
$oDB = Rhymix\Framework\DB::getInstance();
$info = $oDB->getIndexInfo('member', 'idx_nick_name');
$this->assertTrue(is_object($info));
$this->assertFalse($info->is_unique);
$this->assertEquals(1, count($info->columns));
$this->assertEquals('nick_name', $info->columns[0]->name);
$this->assertNull($info->columns[0]->size);
$this->assertNotNull($info->columns[0]->cardinality);
$info = $oDB->getIndexInfo('module_extra_vars', 'unique_module_vars');
$this->assertTrue(is_object($info));
$this->assertTrue($info->is_unique);
$this->assertEquals(2, count($info->columns));
$this->assertEquals('module_srl', $info->columns[0]->name);
$this->assertEquals('name', $info->columns[1]->name);
$this->assertNull($info->columns[1]->size);
$info = $oDB->getIndexInfo('documents', 'idx_nonexistent');
$this->assertNull($info);
}
public function testIsValidOldPassword() public function testIsValidOldPassword()
{ {
$oDB = Rhymix\Framework\DB::getInstance(); $oDB = Rhymix\Framework\DB::getInstance();