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New function: getColumnInfo($table, $column)

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slawkens
2025-09-28 16:21:31 +02:00
parent 73c07d470d
commit c898fe25ef
1 changed files with 46 additions and 0 deletions
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46
system/libs/pot/OTS_DB_MySQL.php
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@@ -28,6 +28,7 @@ class OTS_DB_MySQL extends OTS_Base_DB
{ {
private array $has_table_cache = []; private array $has_table_cache = [];
private array $has_column_cache = []; private array $has_column_cache = [];
private array $get_column_info_cache = [];
private bool $clearCacheAfter = false; private bool $clearCacheAfter = false;
/** /**
@@ -249,6 +250,51 @@ class OTS_DB_MySQL extends OTS_Base_DB
return true; return true;
} }
public function getColumnInfo(string $table, string $column): bool|array
{
if(isset($this->get_column_info_cache[$table . '.' . $column])) {
return $this->get_column_info_cache[$table . '.' . $column];
}
return $this->getColumnInfoInternal($table, $column);
}
private function getColumnInfoInternal(string $table, string $column): bool|array
{
if (!$this->hasTable($table) || !$this->hasColumn($table, $column)) {
return false;
}
$formatResult = function ($result) {
return [
'field' => $result['Field'],
'type' => $result['Type'],
'null' => strtolower($result['Null']),
'default' => $result['Default'],
'extra' => $result['Extra'],
];
};
$query = $this->query('SHOW COLUMNS FROM `' . $table . "` LIKE " . $this->quote($column));
$rowCount = $query->rowCount();
if ($rowCount > 1) {
$tmp = [];
$results = $query->fetchAll(PDO::FETCH_ASSOC);
foreach ($results as $result) {
$tmp[] = $formatResult($result);
}
return ($this->get_column_info_cache[$table . '.' . $column] = $tmp);
}
else if ($rowCount == 1) {
$result = $query->fetch(PDO::FETCH_ASSOC);
return ($this->get_column_info_cache[$table . '.' . $column] = $formatResult($result));
}
return [];
}
public function revalidateCache() { public function revalidateCache() {
foreach($this->has_table_cache as $key => $value) { foreach($this->has_table_cache as $key => $value) {
$this->hasTableInternal($key); $this->hasTableInternal($key);