Class yii\validators\FileValidator
Inheritance | yii\validators\FileValidator » yii\validators\Validator » yii\base\Component » yii\base\BaseObject |
---|---|
Implements | yii\base\Configurable |
Subclasses | yii\validators\ImageValidator |
Available since version | 2.0 |
Source Code | https://github.com/yiisoft/yii2/blob/master/framework/validators/FileValidator.php |
FileValidator verifies if an attribute is receiving a valid uploaded file.
Note that you should enable fileinfo
PHP extension.
Public Properties
Property | Type | Description | Defined By |
---|---|---|---|
$attributeNames | array | Attribute names. | yii\validators\Validator |
$attributes | array|string | Attributes to be validated by this validator. | yii\validators\Validator |
$behaviors | yii\base\Behavior[] | List of behaviors attached to this component. | yii\base\Component |
$builtInValidators | array | List of built-in validators (name => class or configuration) | yii\validators\Validator |
$checkExtensionByMimeType | boolean | Whether to check file type (extension) with mime-type. | yii\validators\FileValidator |
$enableClientValidation | boolean | Whether to enable client-side validation for this validator. | yii\validators\Validator |
$except | array|string | Scenarios that the validator should not be applied to. | yii\validators\Validator |
$extensions | array|string|null | A list of file name extensions that are allowed to be uploaded. | yii\validators\FileValidator |
$isEmpty | callable|null | A PHP callable that replaces the default implementation of isEmpty(). | yii\validators\Validator |
$maxFiles | integer | The maximum file count the given attribute can hold. | yii\validators\FileValidator |
$maxSize | integer|null | The maximum number of bytes required for the uploaded file. | yii\validators\FileValidator |
$message | string | The error message used when a file is not uploaded correctly. | yii\validators\FileValidator |
$mimeTypes | array|string|null | A list of file MIME types that are allowed to be uploaded. | yii\validators\FileValidator |
$minFiles | integer | The minimum file count the given attribute can hold. | yii\validators\FileValidator |
$minSize | integer|null | The minimum number of bytes required for the uploaded file. | yii\validators\FileValidator |
$on | array|string | Scenarios that the validator can be applied to. | yii\validators\Validator |
$sizeLimit | integer | The size limit for uploaded files. | yii\validators\FileValidator |
$skipOnEmpty | boolean | Whether this validation rule should be skipped if the attribute value is null or an empty string. | yii\validators\Validator |
$skipOnError | boolean | Whether this validation rule should be skipped if the attribute being validated already has some validation error according to some previous rules. | yii\validators\Validator |
$tooBig | string | The error message used when the uploaded file is too large. | yii\validators\FileValidator |
$tooFew | string | The error message used if the count of multiple uploads less that minFiles. | yii\validators\FileValidator |
$tooMany | string | The error message used if the count of multiple uploads exceeds limit. | yii\validators\FileValidator |
$tooSmall | string | The error message used when the uploaded file is too small. | yii\validators\FileValidator |
$uploadRequired | string | The error message used when no file is uploaded. | yii\validators\FileValidator |
$validationAttributes | array|null | List of attribute names. | yii\validators\Validator |
$when | callable|null | A PHP callable whose return value determines whether this validator should be applied. | yii\validators\Validator |
$whenClient | string|null | A JavaScript function name whose return value determines whether this validator should be applied on the client-side. | yii\validators\Validator |
$wrongExtension | string | The error message used when the uploaded file has an extension name that is not listed in $extensions. | yii\validators\FileValidator |
$wrongMimeType | string | The error message used when the file has an mime type that is not allowed by $mimeTypes property. | yii\validators\FileValidator |
Public Methods
Method | Description | Defined By |
---|---|---|
__call() | Calls the named method which is not a class method. | yii\base\Component |
__clone() | This method is called after the object is created by cloning an existing one. | yii\base\Component |
__construct() | Constructor. | yii\base\BaseObject |
__get() | Returns the value of a component property. | yii\base\Component |
__isset() | Checks if a property is set, i.e. defined and not null. | yii\base\Component |
__set() | Sets the value of a component property. | yii\base\Component |
__unset() | Sets a component property to be null. | yii\base\Component |
addError() | Adds an error about the specified attribute to the model object. | yii\validators\Validator |
attachBehavior() | Attaches a behavior to this component. | yii\base\Component |
attachBehaviors() | Attaches a list of behaviors to the component. | yii\base\Component |
behaviors() | Returns a list of behaviors that this component should behave as. | yii\base\Component |
canGetProperty() | Returns a value indicating whether a property can be read. | yii\base\Component |
canSetProperty() | Returns a value indicating whether a property can be set. | yii\base\Component |
className() | Returns the fully qualified name of this class. | yii\base\BaseObject |
clientValidateAttribute() | Returns the JavaScript needed for performing client-side validation. | yii\validators\FileValidator |
createValidator() | Creates a validator object. | yii\validators\Validator |
detachBehavior() | Detaches a behavior from the component. | yii\base\Component |
detachBehaviors() | Detaches all behaviors from the component. | yii\base\Component |
ensureBehaviors() | Makes sure that the behaviors declared in behaviors() are attached to this component. | yii\base\Component |
getAttributeNames() | Returns cleaned attribute names without the ! character at the beginning. |
yii\validators\Validator |
getBehavior() | Returns the named behavior object. | yii\base\Component |
getBehaviors() | Returns all behaviors attached to this component. | yii\base\Component |
getClientOptions() | Returns the client-side validation options. | yii\validators\FileValidator |
getSizeLimit() | Returns the maximum size allowed for uploaded files. | yii\validators\FileValidator |
getValidationAttributes() | Returns a list of attributes this validator applies to. | yii\validators\Validator |
hasEventHandlers() | Returns a value indicating whether there is any handler attached to the named event. | yii\base\Component |
hasMethod() | Returns a value indicating whether a method is defined. | yii\base\Component |
hasProperty() | Returns a value indicating whether a property is defined for this component. | yii\base\Component |
init() | Initializes the object. | yii\validators\FileValidator |
isActive() | Returns a value indicating whether the validator is active for the given scenario and attribute. | yii\validators\Validator |
isEmpty() | Checks if the given value is empty. | yii\validators\FileValidator |
off() | Detaches an existing event handler from this component. | yii\base\Component |
on() | Attaches an event handler to an event. | yii\base\Component |
trigger() | Triggers an event. | yii\base\Component |
validate() | Validates a given value. | yii\validators\Validator |
validateAttribute() | Validates a single attribute. | yii\validators\FileValidator |
validateAttributes() | Validates the specified object. | yii\validators\Validator |
Protected Methods
Method | Description | Defined By |
---|---|---|
formatMessage() | Formats a mesage using the I18N, or simple strtr if \Yii::$app is not available. |
yii\validators\Validator |
getMimeTypeByFile() | Get MIME type by file path | yii\validators\FileValidator |
validateExtension() | Checks if given uploaded file have correct type (extension) according current validator settings. | yii\validators\FileValidator |
validateMimeType() | Checks the mimeType of the $file against the list in the $mimeTypes property. | yii\validators\FileValidator |
validateValue() | Validates a value. | yii\validators\FileValidator |
Property Details
Whether to check file type (extension) with mime-type. If extension produced by file mime-type check differs from uploaded file extension, the file will be considered as invalid.
A list of file name extensions that are allowed to be uploaded. This can be either an array or a string consisting of file extension names separated by space or comma (e.g. "gif, jpg"). Extension names are case-insensitive. Defaults to null, meaning all file name extensions are allowed.
See also $wrongExtension for the customized message for wrong file type.
The maximum file count the given attribute can hold.
Defaults to 1, meaning single file upload. By defining a higher number,
multiple uploads become possible. Setting it to 0
means there is no limit on
the number of files that can be uploaded simultaneously.
Note: The maximum number of files allowed to be uploaded simultaneously is also limited with PHP directive
max_file_uploads
, which defaults to 20.
See also:
- https://www.php.net/manual/en/ini.core.php#ini.max-file-uploads
- $tooMany for the customized message when too many files are uploaded.
The maximum number of bytes required for the uploaded file.
Defaults to null, meaning no limit.
Note, the size limit is also affected by upload_max_filesize
and post_max_size
INI setting
and the 'MAX_FILE_SIZE' hidden field value. See getSizeLimit() for details.
See also:
- https://www.php.net/manual/en/ini.core.php#ini.upload-max-filesize
- https://www.php.net/post-max-size
- getSizeLimit()
- $tooBig for the customized message for a file that is too big.
The error message used when a file is not uploaded correctly.
A list of file MIME types that are allowed to be uploaded.
This can be either an array or a string consisting of file MIME types
separated by space or comma (e.g. "text/plain, image/png").
The mask with the special character *
can be used to match groups of mime types.
For example image/*
will pass all mime types, that begin with image/
(e.g. image/jpeg
, image/png
).
Mime type names are case-insensitive. Defaults to null, meaning all MIME types are allowed.
See also $wrongMimeType for the customized message for wrong MIME type.
The minimum file count the given attribute can hold. Defaults to 0. Higher value means at least that number of files should be uploaded.
See also $tooFew for the customized message when too few files are uploaded.
The minimum number of bytes required for the uploaded file. Defaults to null, meaning no limit.
See also $tooSmall for the customized message for a file that is too small.
The error message used when the uploaded file is too large. You may use the following tokens in the message:
- {attribute}: the attribute name
- {file}: the uploaded file name
- {limit}: the maximum size allowed (see getSizeLimit())
- {formattedLimit}: the maximum size formatted with Formatter::asShortSize()
The error message used if the count of multiple uploads less that minFiles. You may use the following tokens in the message:
- {attribute}: the attribute name
- {limit}: the value of $minFiles
The error message used if the count of multiple uploads exceeds limit. You may use the following tokens in the message:
- {attribute}: the attribute name
- {limit}: the value of $maxFiles
The error message used when the uploaded file is too small. You may use the following tokens in the message:
The error message used when no file is uploaded.
Note that this is the text of the validation error message. To make uploading files required,
you have to set $skipOnEmpty to false
.
The error message used when the uploaded file has an extension name that is not listed in $extensions. You may use the following tokens in the message:
- {attribute}: the attribute name
- {file}: the uploaded file name
- {extensions}: the list of the allowed extensions.
The error message used when the file has an mime type that is not allowed by $mimeTypes property. You may use the following tokens in the message:
- {attribute}: the attribute name
- {file}: the uploaded file name
- {mimeTypes}: the value of $mimeTypes
Method Details
Defined in: yii\base\Component::__call()
Calls the named method which is not a class method.
This method will check if any attached behavior has the named method and will execute it if available.
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)
{
$this->ensureBehaviors();
foreach ($this->_behaviors as $object) {
if ($object->hasMethod($name)) {
return call_user_func_array([$object, $name], $params);
}
}
throw new UnknownMethodException('Calling unknown method: ' . get_class($this) . "::$name()");
}
Defined in: yii\base\Component::__clone()
This method is called after the object is created by cloning an existing one.
It removes all behaviors because they are attached to the old object.
public void __clone ( ) |
public function __clone()
{
$this->_events = [];
$this->_eventWildcards = [];
$this->_behaviors = null;
}
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\Component::__get()
Returns the value of a component property.
This method will check in the following order and act accordingly:
- a property defined by a getter: return the getter result
- a property of a behavior: return the behavior property value
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing $value = $component->property;
.
See also __set().
public mixed __get ( $name ) | ||
$name | string |
The property name |
return | mixed |
The property value or the value of a behavior's property |
---|---|---|
throws | yii\base\UnknownPropertyException |
if the property is not defined |
throws | yii\base\InvalidCallException |
if the property is write-only. |
public function __get($name)
{
$getter = 'get' . $name;
if (method_exists($this, $getter)) {
// read property, e.g. getName()
return $this->$getter();
}
// behavior property
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canGetProperty($name)) {
return $behavior->$name;
}
}
if (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) . '::' . $name);
}
Defined in: yii\base\Component::__isset()
Checks if a property is set, i.e. defined and not null.
This method will check in the following order and act accordingly:
- a property defined by a setter: return whether the property is set
- a property of a behavior: return whether the property is set
- return
false
for non existing properties
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing isset($component->property)
.
public boolean __isset ( $name ) | ||
$name | string |
The property name or the event name |
return | boolean |
Whether the named property is set |
---|
public function __isset($name)
{
$getter = 'get' . $name;
if (method_exists($this, $getter)) {
return $this->$getter() !== null;
}
// behavior property
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canGetProperty($name)) {
return $behavior->$name !== null;
}
}
return false;
}
Defined in: yii\base\Component::__set()
Sets the value of a component property.
This method will check in the following order and act accordingly:
- a property defined by a setter: set the property value
- an event in the format of "on xyz": attach the handler to the event "xyz"
- a behavior in the format of "as xyz": attach the behavior named as "xyz"
- a property of a behavior: set the behavior property value
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing $component->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)) {
// set property
$this->$setter($value);
return;
} elseif (strncmp($name, 'on ', 3) === 0) {
// on event: attach event handler
$this->on(trim(substr($name, 3)), $value);
return;
} elseif (strncmp($name, 'as ', 3) === 0) {
// as behavior: attach behavior
$name = trim(substr($name, 3));
$this->attachBehavior($name, $value instanceof Behavior ? $value : Yii::createObject($value));
return;
}
// behavior property
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canSetProperty($name)) {
$behavior->$name = $value;
return;
}
}
if (method_exists($this, 'get' . $name)) {
throw new InvalidCallException('Setting read-only property: ' . get_class($this) . '::' . $name);
}
throw new UnknownPropertyException('Setting unknown property: ' . get_class($this) . '::' . $name);
}
Defined in: yii\base\Component::__unset()
Sets a component property to be null.
This method will check in the following order and act accordingly:
- a property defined by a setter: set the property value to be null
- a property of a behavior: set the property value to be null
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing unset($component->property)
.
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);
return;
}
// behavior property
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canSetProperty($name)) {
$behavior->$name = null;
return;
}
}
throw new InvalidCallException('Unsetting an unknown or read-only property: ' . get_class($this) . '::' . $name);
}
Defined in: yii\validators\Validator::addError()
Adds an error about the specified attribute to the model object.
This is a helper method that performs message selection and internationalization.
public void addError ( $model, $attribute, $message, $params = [] ) | ||
$model | yii\base\Model |
The data model being validated |
$attribute | string |
The attribute being validated |
$message | string |
The error message |
$params | array |
Values for the placeholders in the error message |
public function addError($model, $attribute, $message, $params = [])
{
$params['attribute'] = $model->getAttributeLabel($attribute);
if (!isset($params['value'])) {
$value = $model->$attribute;
if (is_array($value)) {
$params['value'] = 'array()';
} elseif (is_object($value) && !method_exists($value, '__toString')) {
$params['value'] = '(object)';
} else {
$params['value'] = $value;
}
}
$model->addError($attribute, $this->formatMessage($message, $params));
}
Defined in: yii\base\Component::attachBehavior()
Attaches a behavior to this component.
This method will create the behavior object based on the given configuration. After that, the behavior object will be attached to this component by calling the yii\base\Behavior::attach() method.
See also detachBehavior().
public yii\base\Behavior attachBehavior ( $name, $behavior ) | ||
$name | string |
The name of the behavior. |
$behavior | string|array|yii\base\Behavior |
The behavior configuration. This can be one of the following:
|
return | yii\base\Behavior |
The behavior object |
---|
public function attachBehavior($name, $behavior)
{
$this->ensureBehaviors();
return $this->attachBehaviorInternal($name, $behavior);
}
Defined in: yii\base\Component::attachBehaviors()
Attaches a list of behaviors to the component.
Each behavior is indexed by its name and should be a yii\base\Behavior object, a string specifying the behavior class, or an configuration array for creating the behavior.
See also attachBehavior().
public void attachBehaviors ( $behaviors ) | ||
$behaviors | array |
List of behaviors to be attached to the component |
public function attachBehaviors($behaviors)
{
$this->ensureBehaviors();
foreach ($behaviors as $name => $behavior) {
$this->attachBehaviorInternal($name, $behavior);
}
}
Defined in: yii\base\Component::behaviors()
Returns a list of behaviors that this component should behave as.
Child classes may override this method to specify the behaviors they want to behave as.
The return value of this method should be an array of behavior objects or configurations indexed by behavior names. A behavior configuration can be either a string specifying the behavior class or an array of the following structure:
'behaviorName' => [
'class' => 'BehaviorClass',
'property1' => 'value1',
'property2' => 'value2',
]
Note that a behavior class must extend from yii\base\Behavior. Behaviors can be attached using a name or anonymously. When a name is used as the array key, using this name, the behavior can later be retrieved using getBehavior() or be detached using detachBehavior(). Anonymous behaviors can not be retrieved or detached.
Behaviors declared in this method will be attached to the component automatically (on demand).
public array behaviors ( ) | ||
return | array |
The behavior configurations. |
---|
public function behaviors()
{
return [];
}
Defined in: yii\base\Component::canGetProperty()
Returns a value indicating whether a property can be read.
A property can be read 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); - an attached behavior has a readable property of the given name (when
$checkBehaviors
is true).
See also canSetProperty().
public boolean canGetProperty ( $name, $checkVars = true, $checkBehaviors = true ) | ||
$name | string |
The property name |
$checkVars | boolean |
Whether to treat member variables as properties |
$checkBehaviors | boolean |
Whether to treat behaviors' properties as properties of this component |
return | boolean |
Whether the property can be read |
---|
public function canGetProperty($name, $checkVars = true, $checkBehaviors = true)
{
if (method_exists($this, 'get' . $name) || $checkVars && property_exists($this, $name)) {
return true;
} elseif ($checkBehaviors) {
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canGetProperty($name, $checkVars)) {
return true;
}
}
}
return false;
}
Defined in: yii\base\Component::canSetProperty()
Returns a value indicating whether a property can be set.
A property can be written 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); - an attached behavior has a writable property of the given name (when
$checkBehaviors
is true).
See also canGetProperty().
public boolean canSetProperty ( $name, $checkVars = true, $checkBehaviors = true ) | ||
$name | string |
The property name |
$checkVars | boolean |
Whether to treat member variables as properties |
$checkBehaviors | boolean |
Whether to treat behaviors' properties as properties of this component |
return | boolean |
Whether the property can be written |
---|
public function canSetProperty($name, $checkVars = true, $checkBehaviors = true)
{
if (method_exists($this, 'set' . $name) || $checkVars && property_exists($this, $name)) {
return true;
} elseif ($checkBehaviors) {
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canSetProperty($name, $checkVars)) {
return true;
}
}
}
return false;
}
::class
instead.
Defined in: yii\base\BaseObject::className()
Returns the fully qualified name of this class.
public static string className ( ) | ||
return | string |
The fully qualified name of this class. |
---|
public static function className()
{
return get_called_class();
}
Returns the JavaScript needed for performing client-side validation.
Calls getClientOptions() to generate options array for client-side validation.
You may override this method to return the JavaScript validation code if the validator can support client-side validation.
The following JavaScript variables are predefined and can be used in the validation code:
attribute
: an object describing the the attribute being validated.value
: the value being validated.messages
: an array used to hold the validation error messages for the attribute.deferred
: an array used to hold deferred objects for asynchronous validation$form
: a jQuery object containing the form element
The attribute
object contains the following properties:
id
: a unique ID identifying the attribute (e.g. "loginform-username") in the formname
: attribute name or expression (e.g. "[0]content" for tabular input)container
: the jQuery selector of the container of the input fieldinput
: the jQuery selector of the input field under the context of the formerror
: the jQuery selector of the error tag under the context of the containerstatus
: status of the input field, 0: empty, not entered before, 1: validated, 2: pending validation, 3: validating
public string|null clientValidateAttribute ( $model, $attribute, $view ) | ||
$model | yii\base\Model |
The data model being validated |
$attribute | string |
The name of the attribute to be validated. |
$view | yii\web\View |
The view object that is going to be used to render views or view files containing a model form with this validator applied. |
return | string|null |
The client-side validation script. Null if the validator does not support client-side validation. |
---|
public function clientValidateAttribute($model, $attribute, $view)
{
ValidationAsset::register($view);
$options = $this->getClientOptions($model, $attribute);
return 'yii.validation.file(attribute, messages, ' . Json::htmlEncode($options) . ');';
}
Defined in: yii\validators\Validator::createValidator()
Creates a validator object.
public static yii\validators\Validator createValidator ( $type, $model, $attributes, $params = [] ) | ||
$type | string|Closure |
The validator type. This can be either:
|
$model | yii\base\Model |
The data model to be validated. |
$attributes | array|string |
List of attributes to be validated. This can be either an array of the attribute names or a string of comma-separated attribute names. |
$params | array |
Initial values to be applied to the validator properties. |
return | yii\validators\Validator |
The validator |
---|
public static function createValidator($type, $model, $attributes, $params = [])
{
$params['attributes'] = $attributes;
if ($type instanceof \Closure) {
$params['class'] = __NAMESPACE__ . '\InlineValidator';
$params['method'] = $type;
} elseif (!isset(static::$builtInValidators[$type]) && $model->hasMethod($type)) {
// method-based validator
$params['class'] = __NAMESPACE__ . '\InlineValidator';
$params['method'] = [$model, $type];
} else {
unset($params['current']);
if (isset(static::$builtInValidators[$type])) {
$type = static::$builtInValidators[$type];
}
if (is_array($type)) {
$params = array_merge($type, $params);
} else {
$params['class'] = $type;
}
}
return Yii::createObject($params);
}
Defined in: yii\base\Component::detachBehavior()
Detaches a behavior from the component.
The behavior's yii\base\Behavior::detach() method will be invoked.
public yii\base\Behavior|null detachBehavior ( $name ) | ||
$name | string |
The behavior's name. |
return | yii\base\Behavior|null |
The detached behavior. Null if the behavior does not exist. |
---|
public function detachBehavior($name)
{
$this->ensureBehaviors();
if (isset($this->_behaviors[$name])) {
$behavior = $this->_behaviors[$name];
unset($this->_behaviors[$name]);
$behavior->detach();
return $behavior;
}
return null;
}
Defined in: yii\base\Component::detachBehaviors()
Detaches all behaviors from the component.
public void detachBehaviors ( ) |
public function detachBehaviors()
{
$this->ensureBehaviors();
foreach ($this->_behaviors as $name => $behavior) {
$this->detachBehavior($name);
}
}
Defined in: yii\base\Component::ensureBehaviors()
Makes sure that the behaviors declared in behaviors() are attached to this component.
public void ensureBehaviors ( ) |
public function ensureBehaviors()
{
if ($this->_behaviors === null) {
$this->_behaviors = [];
foreach ($this->behaviors() as $name => $behavior) {
$this->attachBehaviorInternal($name, $behavior);
}
}
}
Defined in: yii\validators\Validator::formatMessage()
Formats a mesage using the I18N, or simple strtr if \Yii::$app
is not available.
protected string formatMessage ( $message, $params ) | ||
$message | string | |
$params | array |
protected function formatMessage($message, $params)
{
if (Yii::$app !== null) {
return \Yii::$app->getI18n()->format($message, $params, Yii::$app->language);
}
$placeholders = [];
foreach ((array) $params as $name => $value) {
$placeholders['{' . $name . '}'] = $value;
}
return ($placeholders === []) ? $message : strtr($message, $placeholders);
}
Defined in: yii\validators\Validator::getAttributeNames()
Returns cleaned attribute names without the !
character at the beginning.
public array getAttributeNames ( ) | ||
return | array |
Attribute names. |
---|
public function getAttributeNames()
{
return array_map(function ($attribute) {
return ltrim($attribute, '!');
}, $this->attributes);
}
Defined in: yii\base\Component::getBehavior()
Returns the named behavior object.
public yii\base\Behavior|null getBehavior ( $name ) | ||
$name | string |
The behavior name |
return | yii\base\Behavior|null |
The behavior object, or null if the behavior does not exist |
---|
public function getBehavior($name)
{
$this->ensureBehaviors();
return isset($this->_behaviors[$name]) ? $this->_behaviors[$name] : null;
}
Defined in: yii\base\Component::getBehaviors()
Returns all behaviors attached to this component.
public yii\base\Behavior[] getBehaviors ( ) | ||
return | yii\base\Behavior[] |
List of behaviors attached to this component |
---|
public function getBehaviors()
{
$this->ensureBehaviors();
return $this->_behaviors;
}
Returns the client-side validation options.
This method is usually called from clientValidateAttribute(). You may override this method to modify options that will be passed to the client-side validation.
public array getClientOptions ( $model, $attribute ) | ||
$model | yii\base\Model |
The model being validated |
$attribute | string |
The attribute name being validated |
return | array |
The client-side validation options |
---|
public function getClientOptions($model, $attribute)
{
$label = $model->getAttributeLabel($attribute);
$options = [];
if ($this->message !== null) {
$options['message'] = $this->formatMessage($this->message, [
'attribute' => $label,
]);
}
$options['skipOnEmpty'] = $this->skipOnEmpty;
if (!$this->skipOnEmpty) {
$options['uploadRequired'] = $this->formatMessage($this->uploadRequired, [
'attribute' => $label,
]);
}
if ($this->mimeTypes !== null) {
$mimeTypes = [];
foreach ($this->mimeTypes as $mimeType) {
$mimeTypes[] = new JsExpression(Html::escapeJsRegularExpression($this->buildMimeTypeRegexp($mimeType)));
}
$options['mimeTypes'] = $mimeTypes;
$options['wrongMimeType'] = $this->formatMessage($this->wrongMimeType, [
'attribute' => $label,
'mimeTypes' => implode(', ', $this->mimeTypes),
]);
}
if ($this->extensions !== null) {
$options['extensions'] = $this->extensions;
$options['wrongExtension'] = $this->formatMessage($this->wrongExtension, [
'attribute' => $label,
'extensions' => implode(', ', $this->extensions),
]);
}
if ($this->minSize !== null) {
$options['minSize'] = $this->minSize;
$options['tooSmall'] = $this->formatMessage($this->tooSmall, [
'attribute' => $label,
'limit' => $this->minSize,
'formattedLimit' => Yii::$app->formatter->asShortSize($this->minSize),
]);
}
if ($this->maxSize !== null) {
$options['maxSize'] = $this->maxSize;
$options['tooBig'] = $this->formatMessage($this->tooBig, [
'attribute' => $label,
'limit' => $this->getSizeLimit(),
'formattedLimit' => Yii::$app->formatter->asShortSize($this->getSizeLimit()),
]);
}
if ($this->maxFiles !== null) {
$options['maxFiles'] = $this->maxFiles;
$options['tooMany'] = $this->formatMessage($this->tooMany, [
'attribute' => $label,
'limit' => $this->maxFiles,
]);
}
return $options;
}
Get MIME type by file path
protected string|null getMimeTypeByFile ( $filePath ) | ||
$filePath | string | |
throws | yii\base\InvalidConfigException |
---|
protected function getMimeTypeByFile($filePath)
{
return FileHelper::getMimeType($filePath);
}
Returns the maximum size allowed for uploaded files.
This is determined based on four factors:
- 'upload_max_filesize' in php.ini
- 'post_max_size' in php.ini
- 'MAX_FILE_SIZE' hidden field
- $maxSize
public integer getSizeLimit ( ) | ||
return | integer |
The size limit for uploaded files. |
---|
public function getSizeLimit()
{
// Get the lowest between post_max_size and upload_max_filesize, log a warning if the first is < than the latter
$limit = $this->sizeToBytes(ini_get('upload_max_filesize'));
$postLimit = $this->sizeToBytes(ini_get('post_max_size'));
if ($postLimit > 0 && $postLimit < $limit) {
Yii::warning('PHP.ini\'s \'post_max_size\' is less than \'upload_max_filesize\'.', __METHOD__);
$limit = $postLimit;
}
if ($this->maxSize !== null && $limit > 0 && $this->maxSize < $limit) {
$limit = $this->maxSize;
}
if (isset($_POST['MAX_FILE_SIZE']) && $_POST['MAX_FILE_SIZE'] > 0 && $_POST['MAX_FILE_SIZE'] < $limit) {
$limit = (int) $_POST['MAX_FILE_SIZE'];
}
return $limit;
}
Defined in: yii\validators\Validator::getValidationAttributes()
Returns a list of attributes this validator applies to.
public array|null getValidationAttributes ( $attributes = null ) | ||
$attributes | array|string|null |
The list of attributes to be validated.
|
return | array|null |
List of attribute names. |
---|
public function getValidationAttributes($attributes = null)
{
if ($attributes === null) {
return $this->getAttributeNames();
}
if (is_scalar($attributes)) {
$attributes = [$attributes];
}
$newAttributes = [];
$attributeNames = $this->getAttributeNames();
foreach ($attributes as $attribute) {
// do not strict compare, otherwise int attributes would fail due to to string conversion in getAttributeNames() using ltrim().
if (in_array($attribute, $attributeNames, false)) {
$newAttributes[] = $attribute;
}
}
return $newAttributes;
}
Defined in: yii\base\Component::hasEventHandlers()
Returns a value indicating whether there is any handler attached to the named event.
public boolean hasEventHandlers ( $name ) | ||
$name | string |
The event name |
return | boolean |
Whether there is any handler attached to the event. |
---|
public function hasEventHandlers($name)
{
$this->ensureBehaviors();
if (!empty($this->_events[$name])) {
return true;
}
foreach ($this->_eventWildcards as $wildcard => $handlers) {
if (!empty($handlers) && StringHelper::matchWildcard($wildcard, $name)) {
return true;
}
}
return Event::hasHandlers($this, $name);
}
Defined in: yii\base\Component::hasMethod()
Returns a value indicating whether a method is defined.
A method is defined if:
- the class has a method with the specified name
- an attached behavior has a method with the given name (when
$checkBehaviors
is true).
public boolean hasMethod ( $name, $checkBehaviors = true ) | ||
$name | string |
The property name |
$checkBehaviors | boolean |
Whether to treat behaviors' methods as methods of this component |
return | boolean |
Whether the method is defined |
---|
public function hasMethod($name, $checkBehaviors = true)
{
if (method_exists($this, $name)) {
return true;
} elseif ($checkBehaviors) {
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->hasMethod($name)) {
return true;
}
}
}
return false;
}
Defined in: yii\base\Component::hasProperty()
Returns a value indicating whether a property is defined for this component.
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); - an attached behavior has a property of the given name (when
$checkBehaviors
is true).
See also:
public boolean hasProperty ( $name, $checkVars = true, $checkBehaviors = true ) | ||
$name | string |
The property name |
$checkVars | boolean |
Whether to treat member variables as properties |
$checkBehaviors | boolean |
Whether to treat behaviors' properties as properties of this component |
return | boolean |
Whether the property is defined |
---|
public function hasProperty($name, $checkVars = true, $checkBehaviors = true)
{
return $this->canGetProperty($name, $checkVars, $checkBehaviors) || $this->canSetProperty($name, false, $checkBehaviors);
}
Initializes the object.
This method is invoked at the end of the constructor after the object is initialized with the given configuration.
public void init ( ) |
public function init()
{
parent::init();
if ($this->message === null) {
$this->message = Yii::t('yii', 'File upload failed.');
}
if ($this->uploadRequired === null) {
$this->uploadRequired = Yii::t('yii', 'Please upload a file.');
}
if ($this->tooMany === null) {
$this->tooMany = Yii::t('yii', 'You can upload at most {limit, number} {limit, plural, one{file} other{files}}.');
}
if ($this->tooFew === null) {
$this->tooFew = Yii::t('yii', 'You should upload at least {limit, number} {limit, plural, one{file} other{files}}.');
}
if ($this->wrongExtension === null) {
$this->wrongExtension = Yii::t('yii', 'Only files with these extensions are allowed: {extensions}.');
}
if ($this->tooBig === null) {
$this->tooBig = Yii::t('yii', 'The file "{file}" is too big. Its size cannot exceed {formattedLimit}.');
}
if ($this->tooSmall === null) {
$this->tooSmall = Yii::t('yii', 'The file "{file}" is too small. Its size cannot be smaller than {formattedLimit}.');
}
if (!is_array($this->extensions)) {
$this->extensions = preg_split('/[\s,]+/', strtolower((string)$this->extensions), -1, PREG_SPLIT_NO_EMPTY);
} else {
$this->extensions = array_map('strtolower', $this->extensions);
}
if ($this->wrongMimeType === null) {
$this->wrongMimeType = Yii::t('yii', 'Only files with these MIME types are allowed: {mimeTypes}.');
}
if (!is_array($this->mimeTypes)) {
$this->mimeTypes = preg_split('/[\s,]+/', strtolower((string)$this->mimeTypes), -1, PREG_SPLIT_NO_EMPTY);
} else {
$this->mimeTypes = array_map('strtolower', $this->mimeTypes);
}
}
Defined in: yii\validators\Validator::isActive()
Returns a value indicating whether the validator is active for the given scenario and attribute.
A validator is active if
- the validator's
on
property is empty, or - the validator's
on
property contains the specified scenario
public boolean isActive ( $scenario ) | ||
$scenario | string |
Scenario name |
return | boolean |
Whether the validator applies to the specified scenario. |
---|
public function isActive($scenario)
{
return !in_array($scenario, $this->except, true) && (empty($this->on) || in_array($scenario, $this->on, true));
}
Checks if the given value is empty.
A value is considered empty if it is null, an empty array, or an empty string. Note that this method is different from PHP empty(). It will return false when the value is 0.
public boolean isEmpty ( $value, $trim = false ) | ||
$value | mixed |
The value to be checked |
$trim | boolean | |
return | boolean |
Whether the value is empty |
---|
public function isEmpty($value, $trim = false)
{
$value = is_array($value) ? reset($value) : $value;
return !($value instanceof UploadedFile) || $value->error == UPLOAD_ERR_NO_FILE;
}
Defined in: yii\base\Component::off()
Detaches an existing event handler from this component.
This method is the opposite of on().
Note: in case wildcard pattern is passed for event name, only the handlers registered with this wildcard will be removed, while handlers registered with plain names matching this wildcard will remain.
See also on().
public boolean off ( $name, $handler = null ) | ||
$name | string |
Event name |
$handler | callable|null |
The event handler to be removed. If it is null, all handlers attached to the named event will be removed. |
return | boolean |
If a handler is found and detached |
---|
public function off($name, $handler = null)
{
$this->ensureBehaviors();
if (empty($this->_events[$name]) && empty($this->_eventWildcards[$name])) {
return false;
}
if ($handler === null) {
unset($this->_events[$name], $this->_eventWildcards[$name]);
return true;
}
$removed = false;
// plain event names
if (isset($this->_events[$name])) {
foreach ($this->_events[$name] as $i => $event) {
if ($event[0] === $handler) {
unset($this->_events[$name][$i]);
$removed = true;
}
}
if ($removed) {
$this->_events[$name] = array_values($this->_events[$name]);
return true;
}
}
// wildcard event names
if (isset($this->_eventWildcards[$name])) {
foreach ($this->_eventWildcards[$name] as $i => $event) {
if ($event[0] === $handler) {
unset($this->_eventWildcards[$name][$i]);
$removed = true;
}
}
if ($removed) {
$this->_eventWildcards[$name] = array_values($this->_eventWildcards[$name]);
// remove empty wildcards to save future redundant regex checks:
if (empty($this->_eventWildcards[$name])) {
unset($this->_eventWildcards[$name]);
}
}
}
return $removed;
}
Defined in: yii\base\Component::on()
Attaches an event handler to an event.
The event handler must be a valid PHP callback. The following are some examples:
function ($event) { ... } // anonymous function
[$object, 'handleClick'] // $object->handleClick()
['Page', 'handleClick'] // Page::handleClick()
'handleClick' // global function handleClick()
The event handler must be defined with the following signature,
function ($event)
where $event
is an yii\base\Event object which includes parameters associated with the event.
Since 2.0.14 you can specify event name as a wildcard pattern:
$component->on('event.group.*', function ($event) {
Yii::trace($event->name . ' is triggered.');
});
See also off().
public void on ( $name, $handler, $data = null, $append = true ) | ||
$name | string |
The event name |
$handler | callable |
The event handler |
$data | mixed |
The data to be passed to the event handler when the event is triggered. When the event handler is invoked, this data can be accessed via yii\base\Event::$data. |
$append | boolean |
Whether to append new event handler to the end of the existing handler list. If false, the new handler will be inserted at the beginning of the existing handler list. |
public function on($name, $handler, $data = null, $append = true)
{
$this->ensureBehaviors();
if (strpos($name, '*') !== false) {
if ($append || empty($this->_eventWildcards[$name])) {
$this->_eventWildcards[$name][] = [$handler, $data];
} else {
array_unshift($this->_eventWildcards[$name], [$handler, $data]);
}
return;
}
if ($append || empty($this->_events[$name])) {
$this->_events[$name][] = [$handler, $data];
} else {
array_unshift($this->_events[$name], [$handler, $data]);
}
}
Defined in: yii\base\Component::trigger()
Triggers an event.
This method represents the happening of an event. It invokes all attached handlers for the event including class-level handlers.
public void trigger ( $name, yii\base\Event $event = null ) | ||
$name | string |
The event name |
$event | yii\base\Event|null |
The event instance. If not set, a default yii\base\Event object will be created. |
public function trigger($name, Event $event = null)
{
$this->ensureBehaviors();
$eventHandlers = [];
foreach ($this->_eventWildcards as $wildcard => $handlers) {
if (StringHelper::matchWildcard($wildcard, $name)) {
$eventHandlers[] = $handlers;
}
}
if (!empty($this->_events[$name])) {
$eventHandlers[] = $this->_events[$name];
}
if (!empty($eventHandlers)) {
$eventHandlers = call_user_func_array('array_merge', $eventHandlers);
if ($event === null) {
$event = new Event();
}
if ($event->sender === null) {
$event->sender = $this;
}
$event->handled = false;
$event->name = $name;
foreach ($eventHandlers as $handler) {
$event->data = $handler[1];
call_user_func($handler[0], $event);
// stop further handling if the event is handled
if ($event->handled) {
return;
}
}
}
// invoke class-level attached handlers
Event::trigger($this, $name, $event);
}
Defined in: yii\validators\Validator::validate()
Validates a given value.
You may use this method to validate a value out of the context of a data model.
public boolean validate ( $value, &$error = null ) | ||
$value | mixed |
The data value to be validated. |
$error | string|null |
The error message to be returned, if the validation fails. |
return | boolean |
Whether the data is valid. |
---|
public function validate($value, &$error = null)
{
$result = $this->validateValue($value);
if (empty($result)) {
return true;
}
list($message, $params) = $result;
$params['attribute'] = Yii::t('yii', 'the input value');
if (is_array($value)) {
$params['value'] = 'array()';
} elseif (is_object($value)) {
$params['value'] = 'object';
} else {
$params['value'] = $value;
}
$error = $this->formatMessage($message, $params);
return false;
}
Validates a single attribute.
Child classes must implement this method to provide the actual validation logic.
public void validateAttribute ( $model, $attribute ) | ||
$model | yii\base\Model |
The data model to be validated |
$attribute | string |
The name of the attribute to be validated. |
public function validateAttribute($model, $attribute)
{
if ($this->maxFiles != 1 || $this->minFiles > 1) {
$rawFiles = $model->$attribute;
if (!is_array($rawFiles)) {
$this->addError($model, $attribute, $this->uploadRequired);
return;
}
$files = $this->filterFiles($rawFiles);
$model->$attribute = $files;
if (empty($files)) {
$this->addError($model, $attribute, $this->uploadRequired);
return;
}
$filesCount = count($files);
if ($this->maxFiles && $filesCount > $this->maxFiles) {
$this->addError($model, $attribute, $this->tooMany, ['limit' => $this->maxFiles]);
}
if ($this->minFiles && $this->minFiles > $filesCount) {
$this->addError($model, $attribute, $this->tooFew, ['limit' => $this->minFiles]);
}
foreach ($files as $file) {
$result = $this->validateValue($file);
if (!empty($result)) {
$this->addError($model, $attribute, $result[0], $result[1]);
}
}
} else {
$result = $this->validateValue($model->$attribute);
if (!empty($result)) {
$this->addError($model, $attribute, $result[0], $result[1]);
}
}
}
Defined in: yii\validators\Validator::validateAttributes()
Validates the specified object.
public void validateAttributes ( $model, $attributes = null ) | ||
$model | yii\base\Model |
The data model being validated |
$attributes | array|string|null |
The list of attributes to be validated. Note that if an attribute is not associated with the validator - it will be ignored. If this parameter is null, every attribute listed in $attributes will be validated. |
public function validateAttributes($model, $attributes = null)
{
$attributes = $this->getValidationAttributes($attributes);
foreach ($attributes as $attribute) {
$skip = $this->skipOnError && $model->hasErrors($attribute)
|| $this->skipOnEmpty && $this->isEmpty($model->$attribute);
if (!$skip) {
if ($this->when === null || call_user_func($this->when, $model, $attribute)) {
$this->validateAttribute($model, $attribute);
}
}
}
}
Checks if given uploaded file have correct type (extension) according current validator settings.
protected boolean validateExtension ( $file ) | ||
$file | yii\web\UploadedFile |
protected function validateExtension($file)
{
$extension = mb_strtolower($file->extension, 'UTF-8');
if ($this->checkExtensionByMimeType) {
$mimeType = FileHelper::getMimeType($file->tempName, null, false);
if ($mimeType === null) {
return false;
}
$extensionsByMimeType = FileHelper::getExtensionsByMimeType($mimeType);
if (!in_array($extension, $extensionsByMimeType, true)) {
return false;
}
}
if (!empty($this->extensions)) {
foreach ((array) $this->extensions as $ext) {
if ($extension === $ext || StringHelper::endsWith($file->name, ".$ext", false)) {
return true;
}
}
return false;
}
return true;
}
Checks the mimeType of the $file against the list in the $mimeTypes property.
See also $mimeTypes.
protected boolean validateMimeType ( $file ) | ||
$file | yii\web\UploadedFile | |
return | boolean |
Whether the $file mimeType is allowed |
---|---|---|
throws | yii\base\InvalidConfigException |
protected function validateMimeType($file)
{
$fileMimeType = $this->getMimeTypeByFile($file->tempName);
if ($fileMimeType === null) {
return false;
}
foreach ($this->mimeTypes as $mimeType) {
if (strcasecmp($mimeType, $fileMimeType) === 0) {
return true;
}
if (strpos($mimeType, '*') !== false && preg_match($this->buildMimeTypeRegexp($mimeType), $fileMimeType)) {
return true;
}
}
return false;
}
Validates a value.
A validator class can implement this method to support data validation out of the context of a data model.
protected array|null validateValue ( $value ) | ||
$value | mixed |
The data value to be validated. |
return | array|null |
The error message and the array of parameters to be inserted into the error message.
} return null;
Null should be returned if the data is valid. |
---|---|---|
throws | yii\base\NotSupportedException |
if the validator does not supporting data validation without a model |
protected function validateValue($value)
{
if (!$value instanceof UploadedFile || $value->error == UPLOAD_ERR_NO_FILE) {
return [$this->uploadRequired, []];
}
switch ($value->error) {
case UPLOAD_ERR_OK:
if ($this->maxSize !== null && $value->size > $this->getSizeLimit()) {
return [
$this->tooBig,
[
'file' => $value->name,
'limit' => $this->getSizeLimit(),
'formattedLimit' => Yii::$app->formatter->asShortSize($this->getSizeLimit()),
],
];
} elseif ($this->minSize !== null && $value->size < $this->minSize) {
return [
$this->tooSmall,
[
'file' => $value->name,
'limit' => $this->minSize,
'formattedLimit' => Yii::$app->formatter->asShortSize($this->minSize),
],
];
} elseif (!empty($this->extensions) && !$this->validateExtension($value)) {
return [$this->wrongExtension, ['file' => $value->name, 'extensions' => implode(', ', $this->extensions)]];
} elseif (!empty($this->mimeTypes) && !$this->validateMimeType($value)) {
return [$this->wrongMimeType, ['file' => $value->name, 'mimeTypes' => implode(', ', $this->mimeTypes)]];
}
return null;
case UPLOAD_ERR_INI_SIZE:
case UPLOAD_ERR_FORM_SIZE:
return [$this->tooBig, [
'file' => $value->name,
'limit' => $this->getSizeLimit(),
'formattedLimit' => Yii::$app->formatter->asShortSize($this->getSizeLimit()),
]];
case UPLOAD_ERR_PARTIAL:
Yii::warning('File was only partially uploaded: ' . $value->name, __METHOD__);
break;
case UPLOAD_ERR_NO_TMP_DIR:
Yii::warning('Missing the temporary folder to store the uploaded file: ' . $value->name, __METHOD__);
break;
case UPLOAD_ERR_CANT_WRITE:
Yii::warning('Failed to write the uploaded file to disk: ' . $value->name, __METHOD__);
break;
case UPLOAD_ERR_EXTENSION:
Yii::warning('File upload was stopped by some PHP extension: ' . $value->name, __METHOD__);
break;
default:
break;
}
return [$this->message, []];
}
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