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<?php |
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namespace SetBased\Audit\MySql\Metadata; |
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/** |
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* Metadata of table columns. |
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*/ |
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class ColumnMetadata |
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{ |
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//-------------------------------------------------------------------------------------------------------------------- |
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/** |
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* The properties of the column that are stored by this class. |
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* |
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* var string[] |
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*/ |
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protected static $fields = ['column_name', |
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'column_type', |
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'is_nullable', |
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'character_set_name', |
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'collation_name']; |
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/** |
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* The the properties of this table column. |
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* |
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* @var array |
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*/ |
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protected $properties = []; |
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//-------------------------------------------------------------------------------------------------------------------- |
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/** |
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* Object constructor. |
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* |
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* @param array $properties The metadata of the column. |
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*/ |
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public function __construct($properties) |
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{ |
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foreach (static::$fields as $field) |
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{ |
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if (isset($properties[$field])) |
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{ |
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$this->properties[$field] = $properties[$field]; |
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} |
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} |
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} |
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//-------------------------------------------------------------------------------------------------------------------- |
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/** |
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* Compares the metadata of two columns. |
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* |
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* @param ColumnMetadata $column1 The metadata of the first column. |
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* @param ColumnMetadata $column2 The metadata of the second column. |
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* @param string[] $ignore The properties to be ignored. |
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* |
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* @return bool True if the columns are equal, false otherwise. |
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*/ |
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public static function compare($column1, $column2, $ignore = []) |
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{ |
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$equal = true; |
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foreach (self::$fields as $field) |
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{ |
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if (!in_array($field, $ignore)) |
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{ |
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if ($column1->getProperty($field)!=$column2->getProperty($field)) |
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{ |
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$equal = false; |
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} |
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} |
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} |
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return $equal; |
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} |
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//-------------------------------------------------------------------------------------------------------------------- |
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/** |
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* Returns a SQL snippet with the column definition (without column name) of this column. |
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* |
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* @return string |
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*/ |
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public function getColumnDefinition() |
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{ |
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$parts = []; |
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if ($this->getProperty('column_type')!==null) |
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{ |
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$parts[] = $this->getProperty('column_type'); |
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} |
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if ($this->getProperty('character_set_name')!==null) |
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{ |
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$parts[] = 'character set '.$this->getProperty('character_set_name'); |
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} |
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if ($this->getProperty('collation_name')!==null) |
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{ |
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$parts[] = 'collate '.$this->getProperty('collation_name'); |
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} |
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$parts[] = ($this->getProperty('is_nullable')=='YES') ? 'null' : 'not null'; |
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if ($this->getProperty('column_default')!==null && $this->getProperty('column_default')!='NULL') |
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{ |
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$parts[] = 'default '.$this->getProperty('column_default'); |
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} |
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elseif($this->getProperty('column_type')=='timestamp') |
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{ |
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// Prevent automatic updates of timestamp columns. |
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$parts[] = 'default now()'; |
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} |
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return implode(' ', $parts); |
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} |
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//-------------------------------------------------------------------------------------------------------------------- |
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/** |
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* Returns the name of this column. |
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* |
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* @return string |
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*/ |
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public function getName() |
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{ |
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return $this->properties['column_name']; |
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} |
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//-------------------------------------------------------------------------------------------------------------------- |
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/** |
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* Returns the properties of this table column as an array. |
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* |
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* @return array |
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*/ |
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public function getProperties() |
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{ |
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return $this->properties; |
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} |
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//-------------------------------------------------------------------------------------------------------------------- |
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/** |
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* Returns a property of this table column. |
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* |
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* @param string $name The name of the property. |
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* |
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* @return string|null |
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*/ |
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public function getProperty($name) |
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{ |
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if (isset($this->properties[$name])) |
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{ |
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return $this->properties[$name]; |
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} |
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return null; |
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} |
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//-------------------------------------------------------------------------------------------------------------------- |
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/** |
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* Make this column nullable. |
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*/ |
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public function makeNullable() |
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{ |
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$this->properties['is_nullable'] = 'YES'; |
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} |
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//-------------------------------------------------------------------------------------------------------------------- |
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} |
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//---------------------------------------------------------------------------------------------------------------------- |
|
167
|
|
|
|
SetBased /
php-audit
