Class yii\db\mysql\ColumnSchema
Inheritance | yii\db\mysql\ColumnSchema » yii\db\ColumnSchema » yii\base\BaseObject |
---|---|
Implements | yii\base\Configurable |
Available since version | 2.0.14.1 |
Source Code | https://github.com/yiisoft/yii2/blob/master/framework/db/mysql/ColumnSchema.php |
Class ColumnSchema for MySQL database
Public Properties
Property | Type | Description | Defined By |
---|---|---|---|
$allowNull | boolean | Whether this column can be null. | yii\db\ColumnSchema |
$autoIncrement | boolean | Whether this column is auto-incremental | yii\db\ColumnSchema |
$comment | string | Comment of this column. | yii\db\ColumnSchema |
$dbType | string | The DB type of this column. | yii\db\ColumnSchema |
$defaultValue | mixed | Default value of this column | yii\db\ColumnSchema |
$disableJsonSupport | boolean | Whether the column schema should OMIT using JSON support feature. | yii\db\mysql\ColumnSchema |
$enumValues | array | Enumerable values. | yii\db\ColumnSchema |
$isPrimaryKey | boolean | Whether this column is a primary key | yii\db\ColumnSchema |
$name | string | Name of this column (without quotes). | yii\db\ColumnSchema |
$phpType | string | The PHP type of this column. | yii\db\ColumnSchema |
$precision | integer | Precision of the column data, if it is numeric. | yii\db\ColumnSchema |
$scale | integer | Scale of the column data, if it is numeric. | yii\db\ColumnSchema |
$size | integer | Display size of the column. | yii\db\ColumnSchema |
$type | string | Abstract type of this column. | yii\db\ColumnSchema |
$unsigned | boolean | Whether this column is unsigned. | yii\db\ColumnSchema |
Public Methods
Method | Description | Defined By |
---|---|---|
__call() | Calls the named method which is not a class method. | yii\base\BaseObject |
__construct() | Constructor. | yii\base\BaseObject |
__get() | Returns the value of an object property. | yii\base\BaseObject |
__isset() | Checks if a property is set, i.e. defined and not null. | yii\base\BaseObject |
__set() | Sets value of an object property. | yii\base\BaseObject |
__unset() | Sets an object property to null. | yii\base\BaseObject |
canGetProperty() | Returns a value indicating whether a property can be read. | yii\base\BaseObject |
canSetProperty() | Returns a value indicating whether a property can be set. | yii\base\BaseObject |
className() | Returns the fully qualified name of this class. | yii\base\BaseObject |
dbTypecast() | Converts the input value according to $type and $dbType for use in a db query. | yii\db\mysql\ColumnSchema |
hasMethod() | Returns a value indicating whether a method is defined. | yii\base\BaseObject |
hasProperty() | Returns a value indicating whether a property is defined. | yii\base\BaseObject |
init() | Initializes the object. | yii\base\BaseObject |
phpTypecast() | Converts the input value according to $phpType after retrieval from the database. | yii\db\mysql\ColumnSchema |
Protected Methods
Method | Description | Defined By |
---|---|---|
typecast() | Converts the input value according to $phpType after retrieval from the database. | yii\db\ColumnSchema |
Property Details
Whether the column schema should OMIT using JSON support feature.
You can use this property to make upgrade to Yii 2.0.14 easier.
Default to false
, meaning JSON support is enabled.
Method Details
Defined in: yii\base\BaseObject::__call()
Calls the named method which is not a class method.
Do not call this method directly as it is a PHP magic method that will be implicitly called when an unknown method is being invoked.
public mixed __call ( $name, $params ) | ||
$name | string |
The method name |
$params | array |
Method parameters |
return | mixed |
The method return value |
---|---|---|
throws | yii\base\UnknownMethodException |
when calling unknown method |
public function __call($name, $params)
{
throw new UnknownMethodException('Calling unknown method: ' . get_class($this) . "::$name()");
}
Defined in: yii\base\BaseObject::__construct()
Constructor.
The default implementation does two things:
- Initializes the object with the given configuration
$config
. - Call init().
If this method is overridden in a child class, it is recommended that
- the last parameter of the constructor is a configuration array, like
$config
here. - call the parent implementation at the end of the constructor.
public void __construct ( $config = [] ) | ||
$config | array |
Name-value pairs that will be used to initialize the object properties |
public function __construct($config = [])
{
if (!empty($config)) {
Yii::configure($this, $config);
}
$this->init();
}
Defined in: yii\base\BaseObject::__get()
Returns the value of an object property.
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing $value = $object->property;
.
See also __set().
public mixed __get ( $name ) | ||
$name | string |
The property name |
return | mixed |
The property value |
---|---|---|
throws | yii\base\UnknownPropertyException |
if the property is not defined |
throws | yii\base\InvalidCallException |
if the property is write-only |
public function __get($name)
{
$getter = 'get' . $name;
if (method_exists($this, $getter)) {
return $this->$getter();
} elseif (method_exists($this, 'set' . $name)) {
throw new InvalidCallException('Getting write-only property: ' . get_class($this) . '::' . $name);
}
throw new UnknownPropertyException('Getting unknown property: ' . get_class($this) . '::' . $name);
}
Defined in: yii\base\BaseObject::__isset()
Checks if a property is set, i.e. defined and not null.
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing isset($object->property)
.
Note that if the property is not defined, false will be returned.
public boolean __isset ( $name ) | ||
$name | string |
The property name or the event name |
return | boolean |
Whether the named property is set (not null). |
---|
public function __isset($name)
{
$getter = 'get' . $name;
if (method_exists($this, $getter)) {
return $this->$getter() !== null;
}
return false;
}
Defined in: yii\base\BaseObject::__set()
Sets value of an object property.
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing $object->property = $value;
.
See also __get().
public void __set ( $name, $value ) | ||
$name | string |
The property name or the event name |
$value | mixed |
The property value |
throws | yii\base\UnknownPropertyException |
if the property is not defined |
---|---|---|
throws | yii\base\InvalidCallException |
if the property is read-only |
public function __set($name, $value)
{
$setter = 'set' . $name;
if (method_exists($this, $setter)) {
$this->$setter($value);
} elseif (method_exists($this, 'get' . $name)) {
throw new InvalidCallException('Setting read-only property: ' . get_class($this) . '::' . $name);
} else {
throw new UnknownPropertyException('Setting unknown property: ' . get_class($this) . '::' . $name);
}
}
Defined in: yii\base\BaseObject::__unset()
Sets an object property to null.
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing unset($object->property)
.
Note that if the property is not defined, this method will do nothing. If the property is read-only, it will throw an exception.
public void __unset ( $name ) | ||
$name | string |
The property name |
throws | yii\base\InvalidCallException |
if the property is read only. |
---|
public function __unset($name)
{
$setter = 'set' . $name;
if (method_exists($this, $setter)) {
$this->$setter(null);
} elseif (method_exists($this, 'get' . $name)) {
throw new InvalidCallException('Unsetting read-only property: ' . get_class($this) . '::' . $name);
}
}
Defined in: yii\base\BaseObject::canGetProperty()
Returns a value indicating whether a property can be read.
A property is readable if:
- the class has a getter method associated with the specified name (in this case, property name is case-insensitive);
- the class has a member variable with the specified name (when
$checkVars
is true);
See also canSetProperty().
public boolean canGetProperty ( $name, $checkVars = true ) | ||
$name | string |
The property name |
$checkVars | boolean |
Whether to treat member variables as properties |
return | boolean |
Whether the property can be read |
---|
public function canGetProperty($name, $checkVars = true)
{
return method_exists($this, 'get' . $name) || $checkVars && property_exists($this, $name);
}
Defined in: yii\base\BaseObject::canSetProperty()
Returns a value indicating whether a property can be set.
A property is writable if:
- the class has a setter method associated with the specified name (in this case, property name is case-insensitive);
- the class has a member variable with the specified name (when
$checkVars
is true);
See also canGetProperty().
public boolean canSetProperty ( $name, $checkVars = true ) | ||
$name | string |
The property name |
$checkVars | boolean |
Whether to treat member variables as properties |
return | boolean |
Whether the property can be written |
---|
public function canSetProperty($name, $checkVars = true)
{
return method_exists($this, 'set' . $name) || $checkVars && property_exists($this, $name);
}
::class
instead.
Defined in: yii\base\BaseObject::className()
Returns the fully qualified name of this class.
public static string className ( ) | ||
return | string |
The fully qualified name of this class. |
---|
public static function className()
{
return get_called_class();
}
Converts the input value according to $type and $dbType for use in a db query.
If the value is null or an yii\db\Expression, it will not be converted.
public mixed dbTypecast ( $value ) | ||
$value | mixed |
Input value |
return | mixed |
Converted value. This may also be an array containing the value as the first element and the PDO type as the second element. |
---|
public function dbTypecast($value)
{
if ($value === null) {
return $value;
}
if ($value instanceof ExpressionInterface) {
return $value;
}
if (!$this->disableJsonSupport && $this->dbType === Schema::TYPE_JSON) {
return new JsonExpression($value, $this->type);
}
return $this->typecast($value);
}
Defined in: yii\base\BaseObject::hasMethod()
Returns a value indicating whether a method is defined.
The default implementation is a call to php function method_exists()
.
You may override this method when you implemented the php magic method __call()
.
public boolean hasMethod ( $name ) | ||
$name | string |
The method name |
return | boolean |
Whether the method is defined |
---|
public function hasMethod($name)
{
return method_exists($this, $name);
}
Defined in: yii\base\BaseObject::hasProperty()
Returns a value indicating whether a property is defined.
A property is defined if:
- the class has a getter or setter method associated with the specified name (in this case, property name is case-insensitive);
- the class has a member variable with the specified name (when
$checkVars
is true);
See also:
public boolean hasProperty ( $name, $checkVars = true ) | ||
$name | string |
The property name |
$checkVars | boolean |
Whether to treat member variables as properties |
return | boolean |
Whether the property is defined |
---|
public function hasProperty($name, $checkVars = true)
{
return $this->canGetProperty($name, $checkVars) || $this->canSetProperty($name, false);
}
Defined in: yii\base\BaseObject::init()
Initializes the object.
This method is invoked at the end of the constructor after the object is initialized with the given configuration.
public void init ( ) |
public function init()
{
}
Converts the input value according to $phpType after retrieval from the database.
If the value is null or an yii\db\Expression, it will not be converted.
public mixed phpTypecast ( $value ) | ||
$value | mixed |
Input value |
return | mixed |
Converted value |
---|
public function phpTypecast($value)
{
if ($value === null) {
return null;
}
if (!$this->disableJsonSupport && $this->type === Schema::TYPE_JSON) {
return json_decode($value, true);
}
return parent::phpTypecast($value);
}
Defined in: yii\db\ColumnSchema::typecast()
Converts the input value according to $phpType after retrieval from the database.
If the value is null or an yii\db\Expression, it will not be converted.
protected mixed typecast ( $value ) | ||
$value | mixed |
Input value |
return | mixed |
Converted value |
---|
protected function typecast($value)
{
if ($value === ''
&& !in_array(
$this->type,
[
Schema::TYPE_TEXT,
Schema::TYPE_STRING,
Schema::TYPE_BINARY,
Schema::TYPE_CHAR
],
true)
) {
return null;
}
if ($value === null
|| gettype($value) === $this->phpType
|| $value instanceof ExpressionInterface
|| $value instanceof Query
) {
return $value;
}
if (is_array($value)
&& count($value) === 2
&& isset($value[1])
&& in_array($value[1], $this->getPdoParamTypes(), true)
) {
return new PdoValue($value[0], $value[1]);
}
switch ($this->phpType) {
case 'resource':
case 'string':
if (is_resource($value)) {
return $value;
}
if (is_float($value)) {
// ensure type cast always has . as decimal separator in all locales
return StringHelper::floatToString($value);
}
if (is_numeric($value)
&& ColumnSchemaBuilder::CATEGORY_NUMERIC === ColumnSchemaBuilder::$typeCategoryMap[$this->type]
) {
// https://github.com/yiisoft/yii2/issues/14663
return $value;
}
if (PHP_VERSION_ID >= 80100 && is_object($value) && $value instanceof \BackedEnum) {
return (string) $value->value;
}
return (string) $value;
case 'integer':
if (PHP_VERSION_ID >= 80100 && is_object($value) && $value instanceof \BackedEnum) {
return (int) $value->value;
}
return (int) $value;
case 'boolean':
// treating a 0 bit value as false too
// https://github.com/yiisoft/yii2/issues/9006
return (bool) $value && $value !== "\0";
case 'double':
return (float) $value;
}
return $value;
}