Abstract class Phalcon\Mvc\Model\MetaData

implements Phalcon\DI\InjectionAwareInterface, Phalcon\Mvc\Model\MetaDataInterface

Because Phalcon\Mvc\Model requires meta-data like field names, data types, primary keys, etc. this component collect them and store for further querying by Phalcon\Mvc\Model. Phalcon\Mvc\Model\MetaData can also use adapters to store temporarily or permanently the meta-data. A standard Phalcon\Mvc\Model\MetaData can be used to query model attributes:

$metaData = new Phalcon\Mvc\Model\MetaData\Memory();
$attributes = $metaData->getAttributes(new Robots());
print_r($attributes);

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_COLUMN_MAP

integer MODELS_REVERSE_COLUMN_MAP

Methods

protected _initialize ()

Initialize the metadata for certain table

public setDI (Phalcon\DiInterface $dependencyInjector)

Sets the DependencyInjector container

public Phalcon\DiInterface getDI ()

Returns the DependencyInjector container

public setStrategy (Phalcon\Mvc\Model\MetaData\Strategy\Introspection $strategy)

Set the meta-data extraction strategy

public Phalcon\Mvc\Model\MetaData\Strategy\Introspection getStrategy ()

Return the strategy to obtain the meta-data

public array readMetaData (Phalcon\Mvc\ModelInterface $model)

Reads the complete meta-data for certain model

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

public array readMetaDataIndex (Phalcon\Mvc\ModelInterface $model, int $index)

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

print_r($metaData->writeColumnMapIndex(new Robots(), MetaData::MODELS_REVERSE_COLUMN_MAP, array('leName' => 'name')));

public writeMetaDataIndex (Phalcon\Mvc\ModelInterface $model, int $index, mixed $data, unknown $replace)

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

print_r($metaData->writeColumnMapIndex(new Robots(), MetaData::MODELS_REVERSE_COLUMN_MAP, array('leName' => 'name')));

public array readColumnMap (Phalcon\Mvc\ModelInterface $model)

Reads the ordered/reversed column map for certain model

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

public readColumnMapIndex (Phalcon\Mvc\ModelInterface $model, int $index)

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

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

public array getAttributes (Phalcon\Mvc\ModelInterface $model)

Returns table attributes names (fields)

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

public array getPrimaryKeyAttributes (Phalcon\Mvc\ModelInterface $model)

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

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

public array getNonPrimaryKeyAttributes (Phalcon\Mvc\ModelInterface $model)

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

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

public array getNotNullAttributes (Phalcon\Mvc\ModelInterface $model)

Returns an array of not null attributes

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

public array getDataTypes (Phalcon\Mvc\ModelInterface $model)

Returns attributes and their data types

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

public array getDataTypesNumeric (Phalcon\Mvc\ModelInterface $model)

Returns attributes which types are numerical

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

public string getIdentityField (Phalcon\Mvc\ModelInterface $model)

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

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

public array getBindTypes (Phalcon\Mvc\ModelInterface $model)

Returns attributes and their bind data types

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

public array getAutomaticCreateAttributes (Phalcon\Mvc\ModelInterface $model)

Returns attributes that must be ignored from the INSERT SQL generation

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

public array getAutomaticUpdateAttributes (Phalcon\Mvc\ModelInterface $model)

Returns attributes that must be ignored from the UPDATE SQL generation

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

public setAutomaticCreateAttributes (Phalcon\Mvc\ModelInterface $model, array $attributes, unknown $replace)

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

$metaData->setAutomaticCreateAttributes(new Robots(), array('created_at' => true));

public setAutomaticUpdateAttributes (Phalcon\Mvc\ModelInterface $model, array $attributes, unknown $replace)

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

$metaData->setAutomaticUpdateAttributes(new Robots(), array('modified_at' => true));

public array getColumnMap (Phalcon\Mvc\ModelInterface $model)

Returns the column map if any

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

public array getReverseColumnMap (Phalcon\Mvc\ModelInterface $model)

Returns the reverse column map if any

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

public boolean hasAttribute (Phalcon\Mvc\ModelInterface $model, string $attribute)

Check if a model has certain attribute

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

public boolean isEmpty ()

Checks if the internal meta-data container is empty

var_dump($metaData->isEmpty());

public reset ()

Resets internal meta-data in order to regenerate it

$metaData->reset();

abstract public array read (string $key) inherited from Phalcon\Mvc\Model\MetaDataInterface

Reads meta-data from the adapter

abstract public write (string $key, array $data) inherited from Phalcon\Mvc\Model\MetaDataInterface

Writes meta-data to the adapter