Class yii\log\FileTarget
Inheritance | yii\log\FileTarget » yii\log\Target » yii\base\Component » yii\base\BaseObject |
---|---|
Implements | yii\base\Configurable |
Available since version | 2.0 |
Source Code | https://github.com/yiisoft/yii2/blob/master/framework/log/FileTarget.php |
FileTarget records log messages in a file.
The log file is specified via $logFile. If the size of the log file exceeds $maxFileSize (in kilo-bytes), a rotation will be performed, which renames the current log file by suffixing the file name with '.1'. All existing log files are moved backwards by one place, i.e., '.2' to '.3', '.1' to '.2', and so on. The property $maxLogFiles specifies how many history files to keep.
Since 2.0.46 rotation of the files is done only by copy and the
rotateByCopy
property is deprecated.
Public Properties
Property | Type | Description | Defined By |
---|---|---|---|
$behaviors | yii\base\Behavior[] | List of behaviors attached to this component. | yii\base\Component |
$categories | array | List of message categories that this target is interested in. | yii\log\Target |
$dirMode | integer | The permission to be set for newly created directories. | yii\log\FileTarget |
$enableRotation | boolean | Whether log files should be rotated when they reach a certain maximum size. | yii\log\FileTarget |
$enabled | boolean | Indicates whether this log target is enabled. | yii\log\Target |
$except | array | List of message categories that this target is NOT interested in. | yii\log\Target |
$exportInterval | integer | How many messages should be accumulated before they are exported. | yii\log\Target |
$fileMode | integer|null | The permission to be set for newly created log files. | yii\log\FileTarget |
$levels | integer | The message levels that this target is interested in. | yii\log\Target |
$logFile | string|null | Log file path or path alias. | yii\log\FileTarget |
$logVars | array | List of the PHP predefined variables that should be logged in a message. | yii\log\Target |
$maskVars | array | List of the PHP predefined variables that should NOT be logged "as is" and should always be replaced with a mask *** before logging, when exist. |
yii\log\Target |
$maxFileSize | integer | Maximum log file size, in kilo-bytes. | yii\log\FileTarget |
$maxLogFiles | integer | Number of log files used for rotation. | yii\log\FileTarget |
$messages | array | The messages that are retrieved from the logger so far by this log target. | yii\log\Target |
$microtime | boolean | Whether to log time with microseconds. | yii\log\Target |
$prefix | callable|null | A PHP callable that returns a string to be prefixed to every exported message. | yii\log\Target |
$rotateByCopy | boolean | Whether to rotate log files by copy and truncate in contrast to rotation by renaming files. | yii\log\FileTarget |
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 |
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 |
collect() | Processes the given log messages. | yii\log\Target |
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 |
export() | Writes log messages to a file. | yii\log\FileTarget |
filterMessages() | Filters the given messages according to their categories and levels. | yii\log\Target |
formatMessage() | Formats a log message for display as a string. | yii\log\Target |
getBehavior() | Returns the named behavior object. | yii\base\Component |
getBehaviors() | Returns all behaviors attached to this component. | yii\base\Component |
getEnabled() | Check whether the log target is enabled. | yii\log\Target |
getLevels() | yii\log\Target | |
getMessagePrefix() | Returns a string to be prefixed to the given message. | yii\log\Target |
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 route. | yii\log\FileTarget |
off() | Detaches an existing event handler from this component. | yii\base\Component |
on() | Attaches an event handler to an event. | yii\base\Component |
setEnabled() | Sets a value indicating whether this log target is enabled. | yii\log\Target |
setLevels() | Sets the message levels that this target is interested in. | yii\log\Target |
trigger() | Triggers an event. | yii\base\Component |
Protected Methods
Method | Description | Defined By |
---|---|---|
getContextMessage() | Generates the context information to be logged. | yii\log\Target |
getTime() | Returns formatted ('Y-m-d H:i:s') timestamp for message. | yii\log\Target |
rotateFiles() | Rotates log files. | yii\log\FileTarget |
Property Details
The permission to be set for newly created directories. This value will be used by PHP chmod() function. No umask will be applied. Defaults to 0775, meaning the directory is read-writable by owner and group, but read-only for other users.
Whether log files should be rotated when they reach a certain maximum size. Log rotation is enabled by default. This property allows you to disable it, when you have configured an external tools for log rotation on your server.
The permission to be set for newly created log files. This value will be used by PHP chmod() function. No umask will be applied. If not set, the permission will be determined by the current environment.
Log file path or path alias. If not set, it will use the "@runtime/logs/app.log" file. The directory containing the log files will be automatically created if not existing.
Maximum log file size, in kilo-bytes. Defaults to 10240, meaning 10MB.
Number of log files used for rotation. Defaults to 5.
Whether to rotate log files by copy and truncate in contrast to rotation by
renaming files. Defaults to true
to be more compatible with log tailers and windows
systems which do not play well with rename on open files. Rotation by renaming however is
a bit faster.
The problem with windows systems where the rename()
function does not work with files that are opened by some process is described in a
comment by Martin Pelletier in
the PHP documentation. By setting rotateByCopy to true
you can work
around this.
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\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();
}
Defined in: yii\log\Target::collect()
Processes the given log messages.
This method will filter the given messages with $levels and $categories. And if requested, it will also export the filtering result to specific medium (e.g. email).
public void collect ( $messages, $final ) | ||
$messages | array |
Log messages to be processed. See yii\log\Logger::$messages for the structure of each message. |
$final | boolean |
Whether this method is called at the end of the current application |
public function collect($messages, $final)
{
$this->messages = array_merge($this->messages, static::filterMessages($messages, $this->getLevels(), $this->categories, $this->except));
$count = count($this->messages);
if ($count > 0 && ($final || $this->exportInterval > 0 && $count >= $this->exportInterval)) {
if (($context = $this->getContextMessage()) !== '') {
$this->messages[] = [$context, Logger::LEVEL_INFO, 'application', YII_BEGIN_TIME, [], 0];
}
// set exportInterval to 0 to avoid triggering export again while exporting
$oldExportInterval = $this->exportInterval;
$this->exportInterval = 0;
$this->export();
$this->exportInterval = $oldExportInterval;
$this->messages = [];
}
}
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);
}
}
}
Writes log messages to a file.
Starting from version 2.0.14, this method throws LogRuntimeException in case the log can not be exported.
public void export ( ) | ||
throws | yii\base\InvalidConfigException |
if unable to open the log file for writing |
---|---|---|
throws | yii\log\LogRuntimeException |
if unable to write complete log to file |
public function export()
{
$text = implode("\n", array_map([$this, 'formatMessage'], $this->messages)) . "\n";
if (trim($text) === '') {
return; // No messages to export, so we exit the function early
}
if (strpos($this->logFile, '://') === false || strncmp($this->logFile, 'file://', 7) === 0) {
$logPath = dirname($this->logFile);
FileHelper::createDirectory($logPath, $this->dirMode, true);
}
if (($fp = @fopen($this->logFile, 'a')) === false) {
throw new InvalidConfigException("Unable to append to log file: {$this->logFile}");
}
@flock($fp, LOCK_EX);
if ($this->enableRotation) {
// clear stat cache to ensure getting the real current file size and not a cached one
// this may result in rotating twice when cached file size is used on subsequent calls
clearstatcache();
}
if ($this->enableRotation && @filesize($this->logFile) > $this->maxFileSize * 1024) {
$this->rotateFiles();
}
$writeResult = @fwrite($fp, $text);
if ($writeResult === false) {
$error = error_get_last();
throw new LogRuntimeException("Unable to export log through file ({$this->logFile})!: {$error['message']}");
}
$textSize = strlen($text);
if ($writeResult < $textSize) {
throw new LogRuntimeException("Unable to export whole log through file ({$this->logFile})! Wrote $writeResult out of $textSize bytes.");
}
@fflush($fp);
@flock($fp, LOCK_UN);
@fclose($fp);
if ($this->fileMode !== null) {
@chmod($this->logFile, $this->fileMode);
}
}
Defined in: yii\log\Target::filterMessages()
Filters the given messages according to their categories and levels.
public static array filterMessages ( $messages, $levels = 0, $categories = [], $except = [] ) | ||
$messages | array |
Messages to be filtered. The message structure follows that in yii\log\Logger::$messages. |
$levels | integer |
The message levels to filter by. This is a bitmap of level values. Value 0 means allowing all levels. |
$categories | array |
The message categories to filter by. If empty, it means all categories are allowed. |
$except | array |
The message categories to exclude. If empty, it means all categories are allowed. |
return | array |
The filtered messages. |
---|
public static function filterMessages($messages, $levels = 0, $categories = [], $except = [])
{
foreach ($messages as $i => $message) {
if ($levels && !($levels & $message[1])) {
unset($messages[$i]);
continue;
}
$matched = empty($categories);
foreach ($categories as $category) {
if ($message[2] === $category || !empty($category) && substr_compare($category, '*', -1, 1) === 0 && strpos($message[2], rtrim($category, '*')) === 0) {
$matched = true;
break;
}
}
if ($matched) {
foreach ($except as $category) {
$prefix = rtrim($category, '*');
if (($message[2] === $category || $prefix !== $category) && strpos($message[2], $prefix) === 0) {
$matched = false;
break;
}
}
}
if (!$matched) {
unset($messages[$i]);
}
}
return $messages;
}
Defined in: yii\log\Target::formatMessage()
Formats a log message for display as a string.
public string formatMessage ( $message ) | ||
$message | array |
The log message to be formatted. The message structure follows that in yii\log\Logger::$messages. |
return | string |
The formatted message |
---|
public function formatMessage($message)
{
list($text, $level, $category, $timestamp) = $message;
$level = Logger::getLevelName($level);
if (!is_string($text)) {
// exceptions may not be serializable if in the call stack somewhere is a Closure
if ($text instanceof \Exception || $text instanceof \Throwable) {
$text = (string) $text;
} else {
$text = VarDumper::export($text);
}
}
$traces = [];
if (isset($message[4])) {
foreach ($message[4] as $trace) {
$traces[] = "in {$trace['file']}:{$trace['line']}";
}
}
$prefix = $this->getMessagePrefix($message);
return $this->getTime($timestamp) . " {$prefix}[$level][$category] $text"
. (empty($traces) ? '' : "\n " . implode("\n ", $traces));
}
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;
}
Defined in: yii\log\Target::getContextMessage()
Generates the context information to be logged.
The default implementation will dump user information, system variables, etc.
protected string getContextMessage ( ) | ||
return | string |
The context information. If an empty string, it means no context information. |
---|
protected function getContextMessage()
{
$context = ArrayHelper::filter($GLOBALS, $this->logVars);
foreach ($this->maskVars as $var) {
if (ArrayHelper::getValue($context, $var) !== null) {
ArrayHelper::setValue($context, $var, '***');
}
}
$result = [];
foreach ($context as $key => $value) {
$result[] = "\${$key} = " . VarDumper::dumpAsString($value);
}
return implode("\n\n", $result);
}
Defined in: yii\log\Target::getEnabled()
Check whether the log target is enabled.
public boolean getEnabled ( ) | ||
return | boolean |
A value indicating whether this log target is enabled. |
---|
public function getEnabled()
{
if (is_callable($this->_enabled)) {
return call_user_func($this->_enabled, $this);
}
return $this->_enabled;
}
Defined in: yii\log\Target::getLevels()
public integer getLevels ( ) | ||
return | integer |
The message levels that this target is interested in. This is a bitmap of level values. Defaults to 0, meaning all available levels. |
---|
public function getLevels()
{
return $this->_levels;
}
Defined in: yii\log\Target::getMessagePrefix()
Returns a string to be prefixed to the given message.
If $prefix is configured it will return the result of the callback. The default implementation will return user IP, user ID and session ID as a prefix.
public string getMessagePrefix ( $message ) | ||
$message | array |
The message being exported. The message structure follows that in yii\log\Logger::$messages. |
return | string |
The prefix string |
---|
public function getMessagePrefix($message)
{
if ($this->prefix !== null) {
return call_user_func($this->prefix, $message);
}
if (Yii::$app === null) {
return '';
}
$request = Yii::$app->getRequest();
$ip = $request instanceof Request ? $request->getUserIP() : '-';
/* @var $user \yii\web\User */
$user = Yii::$app->has('user', true) ? Yii::$app->get('user') : null;
if ($user && ($identity = $user->getIdentity(false))) {
$userID = $identity->getId();
} else {
$userID = '-';
}
/* @var $session \yii\web\Session */
$session = Yii::$app->has('session', true) ? Yii::$app->get('session') : null;
$sessionID = $session && $session->getIsActive() ? $session->getId() : '-';
return "[$ip][$userID][$sessionID]";
}
Defined in: yii\log\Target::getTime()
Returns formatted ('Y-m-d H:i:s') timestamp for message.
If $microtime is configured to true it will return format 'Y-m-d H:i:s.u'.
protected string getTime ( $timestamp ) | ||
$timestamp | float |
protected function getTime($timestamp)
{
$parts = explode('.', sprintf('%F', $timestamp));
return date('Y-m-d H:i:s', $parts[0]) . ($this->microtime ? ('.' . $parts[1]) : '');
}
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, $checkBehaviors);
}
Initializes the route.
This method is invoked after the route is created by the route manager.
public void init ( ) |
public function init()
{
parent::init();
if ($this->logFile === null) {
$this->logFile = Yii::$app->getRuntimePath() . '/logs/app.log';
} else {
$this->logFile = Yii::getAlias($this->logFile);
}
if ($this->maxLogFiles < 1) {
$this->maxLogFiles = 1;
}
if ($this->maxFileSize < 1) {
$this->maxFileSize = 1;
}
}
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]);
}
}
Rotates log files.
protected void rotateFiles ( ) |
protected function rotateFiles()
{
$file = $this->logFile;
for ($i = $this->maxLogFiles; $i >= 0; --$i) {
// $i == 0 is the original log file
$rotateFile = $file . ($i === 0 ? '' : '.' . $i);
if (is_file($rotateFile)) {
// suppress errors because it's possible multiple processes enter into this section
if ($i === $this->maxLogFiles) {
@unlink($rotateFile);
continue;
}
$newFile = $this->logFile . '.' . ($i + 1);
$this->rotateByCopy($rotateFile, $newFile);
if ($i === 0) {
$this->clearLogFile($rotateFile);
}
}
}
}
Defined in: yii\log\Target::setEnabled()
Sets a value indicating whether this log target is enabled.
public void setEnabled ( $value ) | ||
$value | boolean|callable |
A boolean value or a callable to obtain the value from. The callable value is available since version 2.0.13. A callable may be used to determine whether the log target should be enabled in a dynamic way. For example, to only enable a log if the current user is logged in you can configure the target as follows:
|
public function setEnabled($value)
{
$this->_enabled = $value;
}
Defined in: yii\log\Target::setLevels()
Sets the message levels that this target is interested in.
The parameter can be either an array of interested level names or an integer representing the bitmap of the interested level values. Valid level names include: 'error', 'warning', 'info', 'trace' and 'profile'; valid level values include: yii\log\Logger::LEVEL_ERROR, yii\log\Logger::LEVEL_WARNING, yii\log\Logger::LEVEL_INFO, yii\log\Logger::LEVEL_TRACE and yii\log\Logger::LEVEL_PROFILE.
For example,
['error', 'warning']
// which is equivalent to:
Logger::LEVEL_ERROR | Logger::LEVEL_WARNING
public void setLevels ( $levels ) | ||
$levels | array|integer |
Message levels that this target is interested in. |
throws | yii\base\InvalidConfigException |
if $levels value is not correct. |
---|
public function setLevels($levels)
{
static $levelMap = [
'error' => Logger::LEVEL_ERROR,
'warning' => Logger::LEVEL_WARNING,
'info' => Logger::LEVEL_INFO,
'trace' => Logger::LEVEL_TRACE,
'profile' => Logger::LEVEL_PROFILE,
];
if (is_array($levels)) {
$this->_levels = 0;
foreach ($levels as $level) {
if (isset($levelMap[$level])) {
$this->_levels |= $levelMap[$level];
} else {
throw new InvalidConfigException("Unrecognized level: $level");
}
}
} else {
$bitmapValues = array_reduce($levelMap, function ($carry, $item) {
return $carry | $item;
});
if (!($bitmapValues & $levels) && $levels !== 0) {
throw new InvalidConfigException("Incorrect $levels value");
}
$this->_levels = $levels;
}
}
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);
}
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