BaseMailer
extends Component
in package
implements
MailerInterface, ViewContextInterface
BaseMailer serves as a base class that implements the basic functions required by [[MailerInterface]].
Concrete child classes should may focus on implementing the [[sendMessage()]] method.
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Table of Contents
Interfaces
- MailerInterface
- MailerInterface is the interface that should be implemented by mailer classes.
- ViewContextInterface
- ViewContextInterface is the interface that should implemented by classes who want to support relative view names.
Constants
- EVENT_AFTER_SEND = 'afterSend'
- EVENT_BEFORE_SEND = 'beforeSend'
Properties
- $behaviors : array<string|int, Behavior>
- $fileTransportCallback : callable|null
- $fileTransportPath : string
- $htmlLayout : string|bool
- $messageClass : string
- $messageConfig : array<string|int, mixed>
- $textLayout : string|bool
- $useFileTransport : bool
- $view : View
- $viewPath : string
- $_behaviors : array<string|int, Behavior>|null
- $_events : array<string|int, mixed>
- $_eventWildcards : array<string|int, mixed>
- $_message : mixed
- $_view : View|array<string|int, mixed>
- $_viewPath : string
Methods
- __call() : mixed
- Calls the named method which is not a class method.
- __clone() : mixed
- This method is called after the object is created by cloning an existing one.
- __construct() : mixed
- Constructor.
- __get() : mixed
- Returns the value of a component property.
- __isset() : bool
- Checks if a property is set, i.e. defined and not null.
- __set() : mixed
- Sets the value of a component property.
- __unset() : mixed
- Sets a component property to be null.
- afterSend() : mixed
- This method is invoked right after mail was send.
- attachBehavior() : Behavior
- Attaches a behavior to this component.
- attachBehaviors() : mixed
- Attaches a list of behaviors to the component.
- beforeSend() : bool
- This method is invoked right before mail send.
- behaviors() : array<string|int, mixed>
- Returns a list of behaviors that this component should behave as.
- canGetProperty() : bool
- Returns a value indicating whether a property can be read.
- canSetProperty() : bool
- Returns a value indicating whether a property can be set.
- className() : string
- Returns the fully qualified name of this class.
- compose() : MessageInterface
- Creates a new message instance and optionally composes its body content via view rendering.
- detachBehavior() : Behavior|null
- Detaches a behavior from the component.
- detachBehaviors() : mixed
- Detaches all behaviors from the component.
- ensureBehaviors() : mixed
- Makes sure that the behaviors declared in [[behaviors()]] are attached to this component.
- generateMessageFileName() : string
- getBehavior() : Behavior|null
- Returns the named behavior object.
- getBehaviors() : array<string|int, Behavior>
- Returns all behaviors attached to this component.
- getView() : View
- getViewPath() : string
- hasEventHandlers() : bool
- Returns a value indicating whether there is any handler attached to the named event.
- hasMethod() : bool
- Returns a value indicating whether a method is defined.
- hasProperty() : bool
- Returns a value indicating whether a property is defined for this component.
- init() : mixed
- Initializes the object.
- off() : bool
- Detaches an existing event handler from this component.
- on() : mixed
- Attaches an event handler to an event.
- render() : string
- Renders the specified view with optional parameters and layout.
- send() : bool
- Sends the given email message.
- sendMultiple() : int
- Sends multiple messages at once.
- setView() : mixed
- setViewPath() : mixed
- trigger() : mixed
- Triggers an event.
- createMessage() : MessageInterface
- Creates a new message instance.
- createView() : View
- Creates view instance from given configuration.
- saveMessage() : bool
- Saves the message as a file under [[fileTransportPath]].
- sendMessage() : bool
- Sends the specified message.
- attachBehaviorInternal() : Behavior
- Attaches a behavior to this component.
Constants
EVENT_AFTER_SEND
public
mixed
EVENT_AFTER_SEND
= 'afterSend'
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EVENT_BEFORE_SEND
public
mixed
EVENT_BEFORE_SEND
= 'beforeSend'
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Properties
$behaviors read-only
public
array<string|int, Behavior>
$behaviors
List of behaviors attached to this component.
$fileTransportCallback
public
callable|null
$fileTransportCallback
a PHP callback that will be called by [[send()]] when [[useFileTransport]] is true. The callback should return a file name which will be used to save the email message. If not set, the file name will be generated based on the current timestamp.
The signature of the callback is:
function ($mailer, $message)
$fileTransportPath
public
string
$fileTransportPath
= '@runtime/mail'
the directory where the email messages are saved when [[useFileTransport]] is true.
$htmlLayout
public
string|bool
$htmlLayout
= 'layouts/html'
HTML layout view name. This is the layout used to render HTML mail body. The property can take the following values:
- a relative view name: a view file relative to [[viewPath]], e.g., 'layouts/html'.
- a path alias: an absolute view file path specified as a path alias, e.g., '@app/mail/html'.
- a boolean false: the layout is disabled.
$messageClass
public
string
$messageClass
= 'yii\mail\BaseMessage'
the default class name of the new message instances created by [[createMessage()]]
$messageConfig
public
array<string|int, mixed>
$messageConfig
= []
the configuration that should be applied to any newly created
email message instance by [[createMessage()]] or [[compose()]]. Any valid property defined
by [[MessageInterface]] can be configured, such as from
, to
, subject
, textBody
, htmlBody
, etc.
For example:
[
'charset' => 'UTF-8',
'from' => 'noreply@mydomain.com',
'bcc' => 'developer@mydomain.com',
]
$textLayout
public
string|bool
$textLayout
= 'layouts/text'
text layout view name. This is the layout used to render TEXT mail body. Please refer to [[htmlLayout]] for possible values that this property can take.
$useFileTransport
public
bool
$useFileTransport
= false
whether to save email messages as files under [[fileTransportPath]] instead of sending them to the actual recipients. This is usually used during development for debugging purpose.
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$view
public
View
$view
View instance. Note that the type of this property differs in getter and setter. See [[getView()]] and [[setView()]] for details.
$viewPath
public
string
$viewPath
The directory that contains the view files for composing mail messages Defaults to '@app/mail'.
$_behaviors
private
array<string|int, Behavior>|null
$_behaviors
the attached behaviors (behavior name => behavior). This is null
when not initialized.
$_events
private
array<string|int, mixed>
$_events
= []
the attached event handlers (event name => handlers)
$_eventWildcards
private
array<string|int, mixed>
$_eventWildcards
= []
the event handlers attached for wildcard patterns (event name wildcard => handlers)
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$_message
private
mixed
$_message
$_view
private
View|array<string|int, mixed>
$_view
= []
view instance or its array configuration.
$_viewPath
private
string
$_viewPath
the directory containing view files for composing mail messages.
Methods
__call()
Calls the named method which is not a class method.
public
__call(string $name, array<string|int, mixed> $params) : mixed
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.
Parameters
- $name : string
-
the method name
- $params : array<string|int, mixed>
-
method parameters
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Return values
mixed —the method return value
__clone()
This method is called after the object is created by cloning an existing one.
public
__clone() : mixed
It removes all behaviors because they are attached to the old object.
__construct()
Constructor.
public
__construct([array<string|int, mixed> $config = [] ]) : mixed
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.
Parameters
- $config : array<string|int, mixed> = []
-
name-value pairs that will be used to initialize the object properties
__get()
Returns the value of a component property.
public
__get(string $name) : mixed
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;
.
Parameters
- $name : string
-
the property name
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Return values
mixed —the property value or the value of a behavior's property
__isset()
Checks if a property is set, i.e. defined and not null.
public
__isset(string $name) : bool
This method will check in the following order and act accordingly:
- a property defined by a setter: return whether the property is set
- a property of a behavior: return whether the property is set
- return
false
for non existing properties
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing isset($component->property)
.
Parameters
- $name : string
-
the property name or the event name
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Return values
bool —whether the named property is set
__set()
Sets the value of a component property.
public
__set(string $name, mixed $value) : mixed
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;
.
Parameters
- $name : string
-
the property name or the event name
- $value : mixed
-
the property value
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__unset()
Sets a component property to be null.
public
__unset(string $name) : mixed
This method will check in the following order and act accordingly:
- a property defined by a setter: set the property value to be null
- a property of a behavior: set the property value to be null
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing unset($component->property)
.
Parameters
- $name : string
-
the property name
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afterSend()
This method is invoked right after mail was send.
public
afterSend(MessageInterface $message, bool $isSuccessful) : mixed
You may override this method to do some postprocessing or logging based on mail send status. If you override this method, please make sure you call the parent implementation first.
Parameters
- $message : MessageInterface
- $isSuccessful : bool
attachBehavior()
Attaches a behavior to this component.
public
attachBehavior(string $name, string|array<string|int, mixed>|Behavior $behavior) : Behavior
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 [[Behavior::attach()]] method.
Parameters
- $name : string
-
the name of the behavior.
- $behavior : string|array<string|int, mixed>|Behavior
-
the behavior configuration. This can be one of the following:
- a [[Behavior]] object
- a string specifying the behavior class
- an object configuration array that will be passed to [[Yii::createObject()]] to create the behavior object.
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Return values
Behavior —the behavior object
attachBehaviors()
Attaches a list of behaviors to the component.
public
attachBehaviors(array<string|int, mixed> $behaviors) : mixed
Each behavior is indexed by its name and should be a [[Behavior]] object, a string specifying the behavior class, or an configuration array for creating the behavior.
Parameters
- $behaviors : array<string|int, mixed>
-
list of behaviors to be attached to the component
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beforeSend()
This method is invoked right before mail send.
public
beforeSend(MessageInterface $message) : bool
You may override this method to do last-minute preparation for the message. If you override this method, please make sure you call the parent implementation first.
Parameters
- $message : MessageInterface
Return values
bool —whether to continue sending an email.
behaviors()
Returns a list of behaviors that this component should behave as.
public
behaviors() : array<string|int, mixed>
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 [[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).
Return values
array<string|int, mixed> —the behavior configurations.
canGetProperty()
Returns a value indicating whether a property can be read.
public
canGetProperty(string $name[, bool $checkVars = true ][, bool $checkBehaviors = true ]) : bool
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).
Parameters
- $name : string
-
the property name
- $checkVars : bool = true
-
whether to treat member variables as properties
- $checkBehaviors : bool = true
-
whether to treat behaviors' properties as properties of this component
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Return values
bool —whether the property can be read
canSetProperty()
Returns a value indicating whether a property can be set.
public
canSetProperty(string $name[, bool $checkVars = true ][, bool $checkBehaviors = true ]) : bool
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).
Parameters
- $name : string
-
the property name
- $checkVars : bool = true
-
whether to treat member variables as properties
- $checkBehaviors : bool = true
-
whether to treat behaviors' properties as properties of this component
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Return values
bool —whether the property can be written
className()
Returns the fully qualified name of this class.
public
static className() : string
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Return values
string —the fully qualified name of this class.
compose()
Creates a new message instance and optionally composes its body content via view rendering.
public
compose([string|array<string|int, mixed>|null $view = null ][, array<string|int, mixed> $params = [] ]) : MessageInterface
Parameters
- $view : string|array<string|int, mixed>|null = null
-
the view to be used for rendering the message body. This can be:
- a string, which represents the view name or path alias for rendering the HTML body of the email.
In this case, the text body will be generated by applying
strip_tags()
to the HTML body. - an array with 'html' and/or 'text' elements. The 'html' element refers to the view name or path alias
for rendering the HTML body, while 'text' element is for rendering the text body. For example,
['html' => 'contact-html', 'text' => 'contact-text']
. - null, meaning the message instance will be returned without body content.
The view to be rendered can be specified in one of the following formats:
- path alias (e.g. "@app/mail/contact");
- a relative view name (e.g. "contact") located under [[viewPath]].
- a string, which represents the view name or path alias for rendering the HTML body of the email.
In this case, the text body will be generated by applying
- $params : array<string|int, mixed> = []
-
the parameters (name-value pairs) that will be extracted and made available in the view file.
Return values
MessageInterface —message instance.
detachBehavior()
Detaches a behavior from the component.
public
detachBehavior(string $name) : Behavior|null
The behavior's [[Behavior::detach()]] method will be invoked.
Parameters
- $name : string
-
the behavior's name.
Return values
Behavior|null —the detached behavior. Null if the behavior does not exist.
detachBehaviors()
Detaches all behaviors from the component.
public
detachBehaviors() : mixed
ensureBehaviors()
Makes sure that the behaviors declared in [[behaviors()]] are attached to this component.
public
ensureBehaviors() : mixed
generateMessageFileName()
public
generateMessageFileName() : string
Return values
string —the file name for saving the message when [[useFileTransport]] is true.
getBehavior()
Returns the named behavior object.
public
getBehavior(string $name) : Behavior|null
Parameters
- $name : string
-
the behavior name
Return values
Behavior|null —the behavior object, or null if the behavior does not exist
getBehaviors()
Returns all behaviors attached to this component.
public
getBehaviors() : array<string|int, Behavior>
Return values
array<string|int, Behavior> —list of behaviors attached to this component
getView()
public
getView() : View
Return values
View —view instance.
getViewPath()
public
getViewPath() : string
Return values
string —the directory that contains the view files for composing mail messages Defaults to '@app/mail'.
hasEventHandlers()
Returns a value indicating whether there is any handler attached to the named event.
public
hasEventHandlers(string $name) : bool
Parameters
- $name : string
-
the event name
Return values
bool —whether there is any handler attached to the event.
hasMethod()
Returns a value indicating whether a method is defined.
public
hasMethod(string $name[, bool $checkBehaviors = true ]) : bool
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).
Parameters
- $name : string
-
the property name
- $checkBehaviors : bool = true
-
whether to treat behaviors' methods as methods of this component
Return values
bool —whether the method is defined
hasProperty()
Returns a value indicating whether a property is defined for this component.
public
hasProperty(string $name[, bool $checkVars = true ][, bool $checkBehaviors = true ]) : bool
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).
Parameters
- $name : string
-
the property name
- $checkVars : bool = true
-
whether to treat member variables as properties
- $checkBehaviors : bool = true
-
whether to treat behaviors' properties as properties of this component
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Return values
bool —whether the property is defined
init()
Initializes the object.
public
init() : mixed
This method is invoked at the end of the constructor after the object is initialized with the given configuration.
off()
Detaches an existing event handler from this component.
public
off(string $name[, callable|null $handler = null ]) : bool
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.
Parameters
- $name : string
-
event name
- $handler : callable|null = null
-
the event handler to be removed. If it is null, all handlers attached to the named event will be removed.
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Return values
bool —if a handler is found and detached
on()
Attaches an event handler to an event.
public
on(string $name, callable $handler[, mixed $data = null ][, bool $append = true ]) : mixed
The event handler must be a valid PHP callback. The following are some examples:
function ($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 [[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.');
});
Parameters
- $name : string
-
the event name
- $handler : callable
-
the event handler
- $data : mixed = null
-
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 [[Event::data]].
- $append : bool = true
-
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.
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render()
Renders the specified view with optional parameters and layout.
public
render(string $view[, array<string|int, mixed> $params = [] ][, string|bool $layout = false ]) : string
The view will be rendered using the [[view]] component.
Parameters
- $view : string
-
the view name or the path alias of the view file.
- $params : array<string|int, mixed> = []
-
the parameters (name-value pairs) that will be extracted and made available in the view file.
- $layout : string|bool = false
-
layout view name or path alias. If false, no layout will be applied.
Return values
string —the rendering result.
send()
Sends the given email message.
public
send(MessageInterface $message) : bool
This method will log a message about the email being sent. If [[useFileTransport]] is true, it will save the email as a file under [[fileTransportPath]]. Otherwise, it will call [[sendMessage()]] to send the email to its recipient(s). Child classes should implement [[sendMessage()]] with the actual email sending logic.
Parameters
- $message : MessageInterface
-
email message instance to be sent
Return values
bool —whether the message has been sent successfully
sendMultiple()
Sends multiple messages at once.
public
sendMultiple(array<string|int, mixed> $messages) : int
The default implementation simply calls [[send()]] multiple times. Child classes may override this method to implement more efficient way of sending multiple messages.
Parameters
- $messages : array<string|int, mixed>
-
list of email messages, which should be sent.
Return values
int —number of messages that are successfully sent.
setView()
public
setView(array<string|int, mixed>|View $view) : mixed
Parameters
- $view : array<string|int, mixed>|View
-
view instance or its array configuration that will be used to render message bodies.
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setViewPath()
public
setViewPath(string $path) : mixed
Parameters
- $path : string
-
the directory that contains the view files for composing mail messages This can be specified as an absolute path or a path alias.
trigger()
Triggers an event.
public
trigger(string $name[, Event|null $event = null ]) : mixed
This method represents the happening of an event. It invokes all attached handlers for the event including class-level handlers.
Parameters
- $name : string
-
the event name
- $event : Event|null = null
-
the event instance. If not set, a default [[Event]] object will be created.
createMessage()
Creates a new message instance.
protected
createMessage() : MessageInterface
The newly created instance will be initialized with the configuration specified by [[messageConfig]]. If the configuration does not specify a 'class', the [[messageClass]] will be used as the class of the new message instance.
Return values
MessageInterface —message instance.
createView()
Creates view instance from given configuration.
protected
createView(array<string|int, mixed> $config) : View
Parameters
- $config : array<string|int, mixed>
-
view configuration.
Return values
View —view instance.
saveMessage()
Saves the message as a file under [[fileTransportPath]].
protected
saveMessage(MessageInterface $message) : bool
Parameters
- $message : MessageInterface
Return values
bool —whether the message is saved successfully
sendMessage()
Sends the specified message.
protected
abstract sendMessage(MessageInterface $message) : bool
This method should be implemented by child classes with the actual email sending logic.
Parameters
- $message : MessageInterface
-
the message to be sent
Return values
bool —whether the message is sent successfully
attachBehaviorInternal()
Attaches a behavior to this component.
private
attachBehaviorInternal(string|int $name, string|array<string|int, mixed>|Behavior $behavior) : Behavior
Parameters
- $name : string|int
-
the name of the behavior. If this is an integer, it means the behavior is an anonymous one. Otherwise, the behavior is a named one and any existing behavior with the same name will be detached first.
- $behavior : string|array<string|int, mixed>|Behavior
-
the behavior to be attached
Return values
Behavior —the attached behavior.