Class **Phalcon\\Mvc\\Model\\MetaData\\Redis**
==============================================

*extends* abstract class :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

*implements* :doc:`Phalcon\\Mvc\\Model\\MetaDataInterface <Phalcon_Mvc_Model_MetaDataInterface>`, :doc:`Phalcon\\Di\\InjectionAwareInterface <Phalcon_Di_InjectionAwareInterface>`

.. role:: raw-html(raw)
   :format: html

:raw-html:`<a href="https://github.com/phalcon/cphalcon/blob/master/phalcon/mvc/model/metadata/redis.zep" class="btn btn-default btn-sm">Source on GitHub</a>`

Stores model meta-data in the Redis.

By default meta-data is stored for 48 hours (172800 seconds)

.. code-block:: php

    <?php

    use Phalcon\Mvc\Model\Metadata\Redis;

    $metaData = new Redis(
        [
            "host"       => "127.0.0.1",
            "port"       => 6379,
            "persistent" => 0,
            "statsKey"   => "_PHCM_MM",
            "lifetime"   => 172800,
            "index"      => 2,
        ]
    );



Constants
---------

*integer* **MODELS_ATTRIBUTES**

*integer* **MODELS_PRIMARY_KEY**

*integer* **MODELS_NON_PRIMARY_KEY**

*integer* **MODELS_NOT_NULL**

*integer* **MODELS_DATA_TYPES**

*integer* **MODELS_DATA_TYPES_NUMERIC**

*integer* **MODELS_DATE_AT**

*integer* **MODELS_DATE_IN**

*integer* **MODELS_IDENTITY_COLUMN**

*integer* **MODELS_DATA_TYPES_BIND**

*integer* **MODELS_AUTOMATIC_DEFAULT_INSERT**

*integer* **MODELS_AUTOMATIC_DEFAULT_UPDATE**

*integer* **MODELS_DEFAULT_VALUES**

*integer* **MODELS_EMPTY_STRING_VALUES**

*integer* **MODELS_COLUMN_MAP**

*integer* **MODELS_REVERSE_COLUMN_MAP**

Methods
-------

public  **__construct** ([*array* $options])

Phalcon\\Mvc\\Model\\MetaData\\Redis constructor



public  **read** (*mixed* $key)

Reads metadata from Redis



public  **write** (*mixed* $key, *mixed* $data)

Writes the metadata to Redis



public  **reset** ()

Flush Redis data and resets internal meta-data in order to regenerate it



final protected  **_initialize** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model, *mixed* $key, *mixed* $table, *mixed* $schema) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Initialize the metadata for certain table



public  **setDI** (:doc:`Phalcon\\DiInterface <Phalcon_DiInterface>` $dependencyInjector) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Sets the DependencyInjector container



public  **getDI** () inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns the DependencyInjector container



public  **setStrategy** (:doc:`Phalcon\\Mvc\\Model\\MetaData\\StrategyInterface <Phalcon_Mvc_Model_MetaData_StrategyInterface>` $strategy) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Set the meta-data extraction strategy



public  **getStrategy** () inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Return the strategy to obtain the meta-data



final public  **readMetaData** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Reads the complete meta-data for certain model

.. code-block:: php

    <?php

    print_r(
        $metaData->readMetaData(
            new Robots()
        )
    );




final public  **readMetaDataIndex** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model, *mixed* $index) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Reads meta-data for certain model

.. code-block:: php

    <?php

    print_r(
        $metaData->readMetaDataIndex(
            new Robots(),
            0
        )
    );




final public  **writeMetaDataIndex** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model, *mixed* $index, *mixed* $data) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Writes meta-data for certain model using a MODEL_* constant

.. code-block:: php

    <?php

    print_r(
        $metaData->writeColumnMapIndex(
            new Robots(),
            MetaData::MODELS_REVERSE_COLUMN_MAP,
            [
                "leName" => "name",
            ]
        )
    );




final public  **readColumnMap** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Reads the ordered/reversed column map for certain model

.. code-block:: php

    <?php

    print_r(
        $metaData->readColumnMap(
            new Robots()
        )
    );




final public  **readColumnMapIndex** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model, *mixed* $index) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Reads column-map information for certain model using a MODEL_* constant

.. code-block:: php

    <?php

    print_r(
        $metaData->readColumnMapIndex(
            new Robots(),
            MetaData::MODELS_REVERSE_COLUMN_MAP
        )
    );




public  **getAttributes** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns table attributes names (fields)

.. code-block:: php

    <?php

    print_r(
        $metaData->getAttributes(
            new Robots()
        )
    );




public  **getPrimaryKeyAttributes** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns an array of fields which are part of the primary key

.. code-block:: php

    <?php

    print_r(
        $metaData->getPrimaryKeyAttributes(
            new Robots()
        )
    );




public  **getNonPrimaryKeyAttributes** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns an array of fields which are not part of the primary key

.. code-block:: php

    <?php

    print_r(
        $metaData->getNonPrimaryKeyAttributes(
            new Robots()
        )
    );




public  **getNotNullAttributes** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns an array of not null attributes

.. code-block:: php

    <?php

    print_r(
        $metaData->getNotNullAttributes(
            new Robots()
        )
    );




public  **getDataTypes** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns attributes and their data types

.. code-block:: php

    <?php

    print_r(
        $metaData->getDataTypes(
            new Robots()
        )
    );




public  **getDataTypesNumeric** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns attributes which types are numerical

.. code-block:: php

    <?php

    print_r(
        $metaData->getDataTypesNumeric(
            new Robots()
        )
    );




public *string* **getIdentityField** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns the name of identity field (if one is present)

.. code-block:: php

    <?php

    print_r(
        $metaData->getIdentityField(
            new Robots()
        )
    );




public  **getBindTypes** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns attributes and their bind data types

.. code-block:: php

    <?php

    print_r(
        $metaData->getBindTypes(
            new Robots()
        )
    );




public  **getAutomaticCreateAttributes** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns attributes that must be ignored from the INSERT SQL generation

.. code-block:: php

    <?php

    print_r(
        $metaData->getAutomaticCreateAttributes(
            new Robots()
        )
    );




public  **getAutomaticUpdateAttributes** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns attributes that must be ignored from the UPDATE SQL generation

.. code-block:: php

    <?php

    print_r(
        $metaData->getAutomaticUpdateAttributes(
            new Robots()
        )
    );




public  **setAutomaticCreateAttributes** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model, *array* $attributes) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Set the attributes that must be ignored from the INSERT SQL generation

.. code-block:: php

    <?php

    $metaData->setAutomaticCreateAttributes(
        new Robots(),
        [
            "created_at" => true,
        ]
    );




public  **setAutomaticUpdateAttributes** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model, *array* $attributes) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Set the attributes that must be ignored from the UPDATE SQL generation

.. code-block:: php

    <?php

    $metaData->setAutomaticUpdateAttributes(
        new Robots(),
        [
            "modified_at" => true,
        ]
    );




public  **setEmptyStringAttributes** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model, *array* $attributes) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Set the attributes that allow empty string values

.. code-block:: php

    <?php

    $metaData->setEmptyStringAttributes(
        new Robots(),
        [
            "name" => true,
        ]
    );




public  **getEmptyStringAttributes** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns attributes allow empty strings

.. code-block:: php

    <?php

    print_r(
        $metaData->getEmptyStringAttributes(
            new Robots()
        )
    );




public  **getDefaultValues** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns attributes (which have default values) and their default values

.. code-block:: php

    <?php

    print_r(
        $metaData->getDefaultValues(
            new Robots()
        )
    );




public  **getColumnMap** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns the column map if any

.. code-block:: php

    <?php

    print_r(
        $metaData->getColumnMap(
            new Robots()
        )
    );




public  **getReverseColumnMap** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Returns the reverse column map if any

.. code-block:: php

    <?php

    print_r(
        $metaData->getReverseColumnMap(
            new Robots()
        )
    );




public  **hasAttribute** (:doc:`Phalcon\\Mvc\\ModelInterface <Phalcon_Mvc_ModelInterface>` $model, *mixed* $attribute) inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Check if a model has certain attribute

.. code-block:: php

    <?php

    var_dump(
        $metaData->hasAttribute(
            new Robots(),
            "name"
        )
    );




public  **isEmpty** () inherited from :doc:`Phalcon\\Mvc\\Model\\MetaData <Phalcon_Mvc_Model_MetaData>`

Checks if the internal meta-data container is empty

.. code-block:: php

    <?php

    var_dump(
        $metaData->isEmpty()
    );