Class yii\redis\ActiveRecord
Inheritance | yii\redis\ActiveRecord » yii\db\BaseActiveRecord » yii\base\Model » yii\base\Component » yii\base\BaseObject |
---|---|
Implements | ArrayAccess, IteratorAggregate, yii\base\Arrayable, yii\base\Configurable, yii\base\StaticInstanceInterface, yii\db\ActiveRecordInterface |
Uses Traits | yii\base\ArrayableTrait, yii\base\StaticInstanceTrait |
Available since version | 2.0 |
Source Code | https://github.com/yiisoft/yii2-redis/blob/master/ActiveRecord.php |
ActiveRecord is the base class for classes representing relational data in terms of objects.
This class implements the ActiveRecord pattern for the redis key-value store.
For defining a record a subclass should at least implement the attributes() method to define
attributes. A primary key can be defined via primaryKey() which defaults to id
if not specified.
The following is an example model called Customer
:
class Customer extends \yii\redis\ActiveRecord
{
public function attributes()
{
return ['id', 'name', 'address', 'registration_date'];
}
}
Public Properties
Property | Type | Description | Defined By |
---|---|---|---|
$activeValidators | yii\validators\Validator[] | The validators applicable to the current $scenario. | yii\base\Model |
$attributes | array | Attribute values (name => value). | yii\base\Model |
$behaviors | yii\base\Behavior[] | List of behaviors attached to this component | yii\base\Component |
$dirtyAttributes | array | The changed attribute values (name-value pairs) | yii\db\BaseActiveRecord |
$errors | array | Errors for all attributes or the specified attribute. | yii\base\Model |
$firstErrors | array | The first errors. | yii\base\Model |
$isNewRecord | boolean | Whether the record is new and should be inserted when calling save(). | yii\db\BaseActiveRecord |
$iterator | ArrayIterator | An iterator for traversing the items in the list. | yii\base\Model |
$oldAttributes | array | The old attribute values (name-value pairs) | yii\db\BaseActiveRecord |
$oldPrimaryKey | mixed | The old primary key value. | yii\db\BaseActiveRecord |
$primaryKey | mixed | The primary key value. | yii\db\BaseActiveRecord |
$relatedRecords | array | An array of related records indexed by relation names. | yii\db\BaseActiveRecord |
$scenario | string | The scenario that this model is in. | yii\base\Model |
$validators | ArrayObject|yii\validators\Validator[] | All the validators declared in the model. | yii\base\Model |
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() | PHP getter magic method. | yii\db\BaseActiveRecord |
__isset() | Checks if a property value is null. | yii\db\BaseActiveRecord |
__set() | PHP setter magic method. | yii\db\BaseActiveRecord |
__unset() | Sets a component property to be null. | yii\db\BaseActiveRecord |
activeAttributes() | Returns the attribute names that are subject to validation in the current scenario. | yii\base\Model |
addError() | Adds a new error to the specified attribute. | yii\base\Model |
addErrors() | Adds a list of errors. | yii\base\Model |
afterDelete() | This method is invoked after deleting a record. | yii\db\BaseActiveRecord |
afterFind() | This method is called when the AR object is created and populated with the query result. | yii\db\BaseActiveRecord |
afterRefresh() | This method is called when the AR object is refreshed. | yii\db\BaseActiveRecord |
afterSave() | This method is called at the end of inserting or updating a record. | yii\db\BaseActiveRecord |
afterValidate() | This method is invoked after validation ends. | yii\base\Model |
attachBehavior() | Attaches a behavior to this component. | yii\base\Component |
attachBehaviors() | Attaches a list of behaviors to the component. | yii\base\Component |
attributeHints() | Returns the attribute hints. | yii\base\Model |
attributeLabels() | Returns the attribute labels. | yii\base\Model |
attributes() | Returns the list of all attribute names of the model. | yii\redis\ActiveRecord |
beforeDelete() | This method is invoked before deleting a record. | yii\db\BaseActiveRecord |
beforeSave() | This method is called at the beginning of inserting or updating a record. | yii\db\BaseActiveRecord |
beforeValidate() | This method is invoked before validation starts. | yii\base\Model |
behaviors() | Returns a list of behaviors that this component should behave as. | yii\base\Component |
buildKey() | Builds a normalized key from a given primary key value. | yii\redis\ActiveRecord |
canGetProperty() | Returns a value indicating whether a property can be read. | yii\db\BaseActiveRecord |
canSetProperty() | Returns a value indicating whether a property can be set. | yii\db\BaseActiveRecord |
className() | Returns the fully qualified name of this class. | yii\base\BaseObject |
clearErrors() | Removes errors for all attributes or a single attribute. | yii\base\Model |
createValidators() | Creates validator objects based on the validation rules specified in rules(). | yii\base\Model |
delete() | Deletes the table row corresponding to this active record. | yii\db\BaseActiveRecord |
deleteAll() | Deletes rows in the table using the provided conditions. | yii\redis\ActiveRecord |
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 |
equals() | Returns a value indicating whether the given active record is the same as the current one. | yii\db\BaseActiveRecord |
extraFields() | Returns the list of fields that can be expanded further and returned by toArray(). | yii\base\ArrayableTrait |
fields() | Returns the list of fields that should be returned by default by toArray() when no specific fields are specified. | yii\base\ArrayableTrait |
find() | Creates an \yii\redis\ActiveQueryInterface instance for query purpose. | yii\redis\ActiveRecord |
findAll() | Returns a list of active record models that match the specified primary key value(s) or a set of column values. | yii\db\BaseActiveRecord |
findOne() | Returns a single active record model instance by a primary key or an array of column values. | yii\db\BaseActiveRecord |
formName() | Returns the form name that this model class should use. | yii\base\Model |
generateAttributeLabel() | Generates a user friendly attribute label based on the give attribute name. | yii\base\Model |
getActiveValidators() | Returns the validators applicable to the current $scenario. | yii\base\Model |
getAttribute() | Returns the named attribute value. | yii\db\BaseActiveRecord |
getAttributeHint() | Returns the text hint for the specified attribute. | yii\db\BaseActiveRecord |
getAttributeLabel() | Returns the text label for the specified attribute. | yii\db\BaseActiveRecord |
getAttributes() | Returns attribute values. | yii\base\Model |
getBehavior() | Returns the named behavior object. | yii\base\Component |
getBehaviors() | Returns all behaviors attached to this component. | yii\base\Component |
getDb() | Returns the database connection used by this AR class. | yii\redis\ActiveRecord |
getDirtyAttributes() | Returns the attribute values that have been modified since they are loaded or saved most recently. | yii\db\BaseActiveRecord |
getErrorSummary() | Returns the errors for all attributes as a one-dimensional array. | yii\base\Model |
getErrors() | Returns the errors for all attributes or a single attribute. | yii\base\Model |
getFirstError() | Returns the first error of the specified attribute. | yii\base\Model |
getFirstErrors() | Returns the first error of every attribute in the model. | yii\base\Model |
getIsNewRecord() | Returns a value indicating whether the current record is new. | yii\db\BaseActiveRecord |
getIterator() | Returns an iterator for traversing the attributes in the model. | yii\base\Model |
getOldAttribute() | Returns the old value of the named attribute. | yii\db\BaseActiveRecord |
getOldAttributes() | Returns the old attribute values. | yii\db\BaseActiveRecord |
getOldPrimaryKey() | Returns the old primary key value(s). | yii\db\BaseActiveRecord |
getPrimaryKey() | Returns the primary key value(s). | yii\db\BaseActiveRecord |
getRelatedRecords() | Returns all populated related records. | yii\db\BaseActiveRecord |
getRelation() | Returns the relation object with the specified name. | yii\db\BaseActiveRecord |
getScenario() | Returns the scenario that this model is used in. | yii\base\Model |
getValidators() | Returns all the validators declared in rules(). | yii\base\Model |
hasAttribute() | Returns a value indicating whether the model has an attribute with the specified name. | yii\db\BaseActiveRecord |
hasErrors() | Returns a value indicating whether there is any validation error. | yii\base\Model |
hasEventHandlers() | Returns a value indicating whether there is any handler attached to the named event. | yii\base\Component |
hasMany() | Declares a has-many relation. |
yii\db\BaseActiveRecord |
hasMethod() | Returns a value indicating whether a method is defined. | yii\base\Component |
hasOne() | Declares a has-one relation. |
yii\db\BaseActiveRecord |
hasProperty() | Returns a value indicating whether a property is defined for this component. | yii\base\Component |
init() | Initializes the object. | yii\db\BaseActiveRecord |
insert() | Inserts the record into the database using the attribute values of this record. | yii\redis\ActiveRecord |
instance() | Returns static class instance, which can be used to obtain meta information. | yii\base\StaticInstanceTrait |
instantiate() | Creates an active record instance. | yii\db\BaseActiveRecord |
isAttributeActive() | Returns a value indicating whether the attribute is active in the current scenario. | yii\base\Model |
isAttributeChanged() | Returns a value indicating whether the named attribute has been changed. | yii\db\BaseActiveRecord |
isAttributeRequired() | Returns a value indicating whether the attribute is required. | yii\base\Model |
isAttributeSafe() | Returns a value indicating whether the attribute is safe for massive assignments. | yii\base\Model |
isPrimaryKey() | Returns a value indicating whether the given set of attributes represents the primary key for this model. | yii\db\BaseActiveRecord |
isRelationPopulated() | Check whether the named relation has been populated with records. | yii\db\BaseActiveRecord |
keyPrefix() | Declares prefix of the key that represents the keys that store this records in redis. | yii\redis\ActiveRecord |
link() | Establishes the relationship between two models. | yii\db\BaseActiveRecord |
load() | Populates the model with input data. | yii\base\Model |
loadMultiple() | Populates a set of models with the data from end user. | yii\base\Model |
markAttributeDirty() | Marks an attribute dirty. | yii\db\BaseActiveRecord |
off() | Detaches an existing event handler from this component. | yii\base\Component |
offsetExists() | Returns whether there is an element at the specified offset. | yii\db\BaseActiveRecord |
offsetGet() | Returns the element at the specified offset. | yii\base\Model |
offsetSet() | Sets the element at the specified offset. | yii\base\Model |
offsetUnset() | Sets the element value at the specified offset to null. | yii\db\BaseActiveRecord |
on() | Attaches an event handler to an event. | yii\base\Component |
onUnsafeAttribute() | This method is invoked when an unsafe attribute is being massively assigned. | yii\base\Model |
optimisticLock() | Returns the name of the column that stores the lock version for implementing optimistic locking. | yii\db\BaseActiveRecord |
populateRecord() | Populates an active record object using a row of data from the database/storage. | yii\db\BaseActiveRecord |
populateRelation() | Populates the named relation with the related records. | yii\db\BaseActiveRecord |
primaryKey() | Returns the primary key name(s) for this AR class. | yii\redis\ActiveRecord |
refresh() | Repopulates this active record with the latest data. | yii\db\BaseActiveRecord |
rules() | Returns the validation rules for attributes. | yii\base\Model |
safeAttributes() | Returns the attribute names that are safe to be massively assigned in the current scenario. | yii\base\Model |
save() | Saves the current record. | yii\db\BaseActiveRecord |
scenarios() | Returns a list of scenarios and the corresponding active attributes. | yii\base\Model |
setAttribute() | Sets the named attribute value. | yii\db\BaseActiveRecord |
setAttributes() | Sets the attribute values in a massive way. | yii\base\Model |
setIsNewRecord() | Sets the value indicating whether the record is new. | yii\db\BaseActiveRecord |
setOldAttribute() | Sets the old value of the named attribute. | yii\db\BaseActiveRecord |
setOldAttributes() | Sets the old attribute values. | yii\db\BaseActiveRecord |
setScenario() | Sets the scenario for the model. | yii\base\Model |
toArray() | Converts the model into an array. | yii\base\ArrayableTrait |
trigger() | Triggers an event. | yii\base\Component |
unlink() | Destroys the relationship between two models. | yii\db\BaseActiveRecord |
unlinkAll() | Destroys the relationship in current model. | yii\db\BaseActiveRecord |
update() | Saves the changes to this active record into the associated database table. | yii\db\BaseActiveRecord |
updateAll() | Updates the whole table using the provided attribute values and conditions. | yii\redis\ActiveRecord |
updateAllCounters() | Updates the whole table using the provided counter changes and conditions. | yii\redis\ActiveRecord |
updateAttributes() | Updates the specified attributes. | yii\db\BaseActiveRecord |
updateCounters() | Updates one or several counter columns for the current AR object. | yii\db\BaseActiveRecord |
validate() | Performs the data validation. | yii\base\Model |
validateMultiple() | Validates multiple models. | yii\base\Model |
Protected Methods
Method | Description | Defined By |
---|---|---|
createRelationQuery() | Creates a query instance for has-one or has-many relation. |
yii\db\BaseActiveRecord |
extractFieldsFor() | Extract nested fields from a fields collection for a given root field Nested fields are separated with dots (.). e.g: "item.id" The previous example would extract "id". | yii\base\ArrayableTrait |
extractRootFields() | Extracts the root field names from nested fields. | yii\base\ArrayableTrait |
findByCondition() | Finds ActiveRecord instance(s) by the given condition. | yii\db\BaseActiveRecord |
refreshInternal() | Repopulates this active record with the latest data from a newly fetched instance. | yii\db\BaseActiveRecord |
resolveFields() | Determines which fields can be returned by toArray(). | yii\base\ArrayableTrait |
updateInternal() | yii\db\BaseActiveRecord |
Events
Event | Type | Description | Defined By |
---|---|---|---|
EVENT_AFTER_DELETE | \yii\db\Event | An event that is triggered after a record is deleted. | yii\db\BaseActiveRecord |
EVENT_AFTER_FIND | \yii\db\Event | An event that is triggered after the record is created and populated with query result. | yii\db\BaseActiveRecord |
EVENT_AFTER_INSERT | yii\db\AfterSaveEvent | An event that is triggered after a record is inserted. | yii\db\BaseActiveRecord |
EVENT_AFTER_REFRESH | \yii\db\Event | An event that is triggered after a record is refreshed. (available since version 2.0.8) | yii\db\BaseActiveRecord |
EVENT_AFTER_UPDATE | yii\db\AfterSaveEvent | An event that is triggered after a record is updated. | yii\db\BaseActiveRecord |
EVENT_AFTER_VALIDATE | yii\base\Event | An event raised at the end of validate() | yii\base\Model |
EVENT_BEFORE_DELETE | yii\base\ModelEvent | An event that is triggered before deleting a record. | yii\db\BaseActiveRecord |
EVENT_BEFORE_INSERT | yii\base\ModelEvent | An event that is triggered before inserting a record. | yii\db\BaseActiveRecord |
EVENT_BEFORE_UPDATE | yii\base\ModelEvent | An event that is triggered before updating a record. | yii\db\BaseActiveRecord |
EVENT_BEFORE_VALIDATE | yii\base\ModelEvent | An event raised at the beginning of validate(). | yii\base\Model |
EVENT_INIT | \yii\db\Event | An event that is triggered when the record is initialized via init(). | yii\db\BaseActiveRecord |
Constants
Constant | Value | Description | Defined By |
---|---|---|---|
SCENARIO_DEFAULT | 'default' | The name of the default scenario. | yii\base\Model |
Method Details
Returns the list of all attribute names of the model.
This method must be overridden by child classes to define available attributes.
public array attributes ( ) | ||
return | array | List of attribute names. |
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Builds a normalized key from a given primary key value.
public static string buildKey ( $key ) | ||
$key | mixed | The key to be normalized |
return | string | The generated key |
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Deletes rows in the table using the provided conditions.
WARNING: If you do not specify any condition, this method will delete ALL rows in the table.
For example, to delete all customers whose status is 3:
Customer::deleteAll(['status' => 3]);
public static integer deleteAll ( $condition = null ) | ||
$condition | array | The conditions that will be put in the WHERE part of the DELETE SQL. Please refer to yii\redis\ActiveQuery::where() on how to specify this parameter. |
return | integer | The number of rows deleted |
---|
Creates an \yii\redis\ActiveQueryInterface instance for query purpose.
The returned \yii\redis\ActiveQueryInterface instance can be further customized by calling
methods defined in \yii\redis\ActiveQueryInterface before one()
or all()
is called to return
populated ActiveRecord instances. For example,
// find the customer whose ID is 1
$customer = Customer::find()->where(['id' => 1])->one();
// find all active customers and order them by their age:
$customers = Customer::find()
->where(['status' => 1])
->orderBy('age')
->all();
This method is also called by yii\db\BaseActiveRecord::hasOne() and yii\db\BaseActiveRecord::hasMany() to create a relational query.
You may override this method to return a customized query. For example,
class Customer extends ActiveRecord
{
public static function find()
{
// use CustomerQuery instead of the default ActiveQuery
return new CustomerQuery(get_called_class());
}
}
The following code shows how to apply a default condition for all queries:
class Customer extends ActiveRecord
{
public static function find()
{
return parent::find()->where(['deleted' => false]);
}
}
// Use andWhere()/orWhere() to apply the default condition
// SELECT FROM customer WHERE `deleted`=:deleted AND age>30
$customers = Customer::find()->andWhere('age>30')->all();
// Use where() to ignore the default condition
// SELECT FROM customer WHERE age>30
$customers = Customer::find()->where('age>30')->all();
public static yii\redis\ActiveQuery find ( ) | ||
return | yii\redis\ActiveQuery | The newly created yii\redis\ActiveQuery instance. |
---|
Returns the database connection used by this AR class.
By default, the "redis" application component is used as the database connection. You may override this method if you want to use a different database connection.
public static yii\redis\Connection getDb ( ) | ||
return | yii\redis\Connection | The database connection used by this AR class. |
---|
Inserts the record into the database using the attribute values of this record.
Usage example:
$customer = new Customer;
$customer->name = $name;
$customer->email = $email;
$customer->insert();
public boolean insert ( $runValidation = true, $attributes = null ) | ||
$runValidation | boolean | Whether to perform validation (calling validate())
before saving the record. Defaults to |
$attributes | array | List of attributes that need to be saved. Defaults to |
return | boolean | Whether the attributes are valid and the record is inserted successfully. |
---|
Declares prefix of the key that represents the keys that store this records in redis.
By default this method returns the class name as the table name by calling yii\helpers\Inflector::camel2id(). For example, 'Customer' becomes 'customer', and 'OrderItem' becomes 'order_item'. You may override this method if you want different key naming.
public static string keyPrefix ( ) | ||
return | string | The prefix to apply to all AR keys |
---|
Returns the primary key name(s) for this AR class.
This method should be overridden by child classes to define the primary key.
Note that an array should be returned even when it is a single primary key.
public static string[] primaryKey ( ) | ||
return | string[] | The primary keys of this record. |
---|
Updates the whole table using the provided attribute values and conditions.
For example, to change the status to be 1 for all customers whose status is 2:
Customer::updateAll(['status' => 1], ['id' => 2]);
public static integer updateAll ( $attributes, $condition = null ) | ||
$attributes | array | Attribute values (name-value pairs) to be saved into the table |
$condition | array | The conditions that will be put in the WHERE part of the UPDATE SQL. Please refer to yii\redis\ActiveQuery::where() on how to specify this parameter. |
return | integer | The number of rows updated |
---|
Updates the whole table using the provided counter changes and conditions.
For example, to increment all customers' age by 1,
Customer::updateAllCounters(['age' => 1]);
public static integer updateAllCounters ( $counters, $condition = null ) | ||
$counters | array | The counters to be updated (attribute name => increment value). Use negative values if you want to decrement the counters. |
$condition | array | The conditions that will be put in the WHERE part of the UPDATE SQL. Please refer to yii\redis\ActiveQuery::where() on how to specify this parameter. |
return | integer | The number of rows updated |
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