Mvc\Model

implements Phalcon\Mvc\EntityInterface, Phalcon\Mvc\ModelInterface, Phalcon\Mvc\Model\ResultInterface, Phalcon\Di\InjectionAwareInterface, Serializable, JsonSerializable

Source on GitHub

Phalcon\Mvc\Model connects business objects and database tables to create a persistable domain model where logic and data are presented in one wrapping. It‘s an implementation of the object-relational mapping (ORM). A model represents the information (data) of the application and the rules to manipulate that data. Models are primarily used for managing the rules of interaction with a corresponding database table. In most cases, each table in your database will correspond to one model in your application. The bulk of your application’s business logic will be concentrated in the models. Phalcon\Mvc\Model is the first ORM written in Zephir/C languages for PHP, giving to developers high performance when interacting with databases while is also easy to use.

$robot = new Robots();
 $robot->type = 'mechanical';
 $robot->name = 'Astro Boy';
 $robot->year = 1952;
 if ($robot->save() == false) {
  echo "Umh, We can store robots: ";
  foreach ($robot->getMessages() as $message) {
 echo message;
  }
 } else {
  echo "Great, a new robot was saved successfully!";
 }

Constants

integer OP_NONE

integer OP_CREATE

integer OP_UPDATE

integer OP_DELETE

integer DIRTY_STATE_PERSISTENT

integer DIRTY_STATE_TRANSIENT

integer DIRTY_STATE_DETACHED

Methods

final public __construct ([mixed $data], [Phalcon\DiInterface $dependencyInjector], [Phalcon\Mvc\Model\ManagerInterface $modelsManager])

Phalcon\Mvc\Model constructor

public setDI (Phalcon\DiInterface $dependencyInjector)

Sets the dependency injection container

public getDI ()

Returns the dependency injection container

protected setEventsManager (Phalcon\Events\ManagerInterface $eventsManager)

Sets a custom events manager

protected getEventsManager ()

Returns the custom events manager

public getModelsMetaData ()

Returns the models meta-data service related to the entity instance

public getModelsManager ()

Returns the models manager related to the entity instance

public setTransaction (Phalcon\Mvc\Model\TransactionInterface $transaction)

Sets a transaction related to the Model instance

use Phalcon\Mvc\Model\Transaction\Manager as TxManager;
use Phalcon\Mvc\Model\Transaction\Failed as TxFailed;

try {

  $txManager = new TxManager();

  $transaction = $txManager->get();

  $robot = new Robots();
  $robot->setTransaction($transaction);
  $robot->name = 'WALL·E';
  $robot->created_at = date('Y-m-d');
  if ($robot->save() == false) {
  $transaction->rollback("Can't save robot");
  }

  $robotPart = new RobotParts();
  $robotPart->setTransaction($transaction);
  $robotPart->type = 'head';
  if ($robotPart->save() == false) {
  $transaction->rollback("Robot part cannot be saved");
  }

  $transaction->commit();

} catch (TxFailed $e) {
  echo 'Failed, reason: ', $e->getMessage();
}

protected setSource (mixed $source)

Sets table name which model should be mapped

public getSource ()

Returns table name mapped in the model

protected setSchema (mixed $schema)

Sets schema name where table mapped is located

public getSchema ()

Returns schema name where table mapped is located

public setConnectionService (mixed $connectionService)

Sets the DependencyInjection connection service name

public setReadConnectionService (mixed $connectionService)

Sets the DependencyInjection connection service name used to read data

public setWriteConnectionService (mixed $connectionService)

Sets the DependencyInjection connection service name used to write data

public getReadConnectionService ()

Returns the DependencyInjection connection service name used to read data related the model

public getWriteConnectionService ()

Returns the DependencyInjection connection service name used to write data related to the model

public setDirtyState (mixed $dirtyState)

Sets the dirty state of the object using one of the DIRTY_STATE_* constants

public getDirtyState ()

Returns one of the DIRTY_STATE_* constants telling if the record exists in the database or not

public getReadConnection ()

Gets the connection used to read data for the model

public getWriteConnection ()

Gets the connection used to write data to the model

public Phalcon\Mvc\Model assign (array $data, [mixed $dataColumnMap], [array $whiteList])

Assigns values to a model from an array

$robot->assign(array(
'type' => 'mechanical',
'name' => 'Astro Boy',
'year' => 1952
 ));

 //assign by db row, column map needed
 $robot->assign($dbRow, array(
'db_type' => 'type',
'db_name' => 'name',
'db_year' => 'year'
 ));

 //allow assign only name and year
 $robot->assign($_POST, null, array('name', 'year');

public static cloneResultMap (Phalcon\Mvc\ModelInterface | Phalcon\Mvc\Model\Row $base, array $data, array $columnMap, [int $dirtyState], [boolean $keepSnapshots])

Assigns values to a model from an array returning a new model.

$robot = \Phalcon\Mvc\Model::cloneResultMap(new Robots(), array(
  'type' => 'mechanical',
  'name' => 'Astro Boy',
  'year' => 1952
));

public static mixed cloneResultMapHydrate (array $data, array $columnMap, int $hydrationMode)

Returns an hydrated result based on the data and the column map

public static Phalcon\Mvc\ModelInterface cloneResult (Phalcon\Mvc\ModelInterface $base, array $data, [int $dirtyState])

Assigns values to a model from an array returning a new model

$robot = Phalcon\Mvc\Model::cloneResult(new Robots(), array(
  'type' => 'mechanical',
  'name' => 'Astro Boy',
  'year' => 1952
));

public static find ([mixed $parameters])

Allows to query a set of records that match the specified conditions

// How many robots are there?
 $robots = Robots::find();
 echo 'There are ', count($robots), "\n";

 // How many mechanical robots are there?
 $robots = Robots::find("type='mechanical'");
 echo 'There are ', count($robots), "\n";

 // Get and print virtual robots ordered by name
 $robots = Robots::find(["type='virtual'", 'order' => 'name']);
 foreach ($robots as $robot) {
 echo $robot->name, "\n";
 }

 // Get first 100 virtual robots ordered by name
 $robots = Robots::find(["type='virtual'", 'order' => 'name', 'limit' => 100]);
 foreach ($robots as $robot) {
 echo $robot->name, "\n";
 }

public static static findFirst ([string | array $parameters])

Allows to query the first record that match the specified conditions

//What's the first robot in robots table?
 $robot = Robots::findFirst();
 echo "The robot name is ", $robot->name;

 //What's the first mechanical robot in robots table?
 $robot = Robots::findFirst("type='mechanical'");
 echo "The first mechanical robot name is ", $robot->name;

 //Get first virtual robot ordered by name
 $robot = Robots::findFirst(array("type='virtual'", "order" => "name"));
 echo "The first virtual robot name is ", $robot->name;

public static query ([Phalcon\DiInterface $dependencyInjector])

Create a criteria for a specific model

protected boolean _exists (Phalcon\Mvc\Model\MetaDataInterface $metaData, Phalcon\Db\AdapterInterface $connection, [string | array $table])

Checks if the current record already exists or not

protected static Phalcon\Mvc\Model\ResultsetInterface _groupResult (mixed $functionName, string $alias, array $parameters)

Generate a PHQL SELECT statement for an aggregate

public static mixed count ([array $parameters])

Allows to count how many records match the specified conditions

//How many robots are there?
 $number = Robots::count();
 echo "There are ", $number, "\n";

 //How many mechanical robots are there?
 $number = Robots::count("type = 'mechanical'");
 echo "There are ", $number, " mechanical robots\n";

public static mixed sum ([array $parameters])

Allows to calculate a sum on a column that match the specified conditions

//How much are all robots?
 $sum = Robots::sum(array('column' => 'price'));
 echo "The total price of robots is ", $sum, "\n";

 //How much are mechanical robots?
 $sum = Robots::sum(array("type = 'mechanical'", 'column' => 'price'));
 echo "The total price of mechanical robots is  ", $sum, "\n";

public static mixed maximum ([array $parameters])

Allows to get the maximum value of a column that match the specified conditions

//What is the maximum robot id?
 $id = Robots::maximum(array('column' => 'id'));
 echo "The maximum robot id is: ", $id, "\n";

 //What is the maximum id of mechanical robots?
 $sum = Robots::maximum(array("type='mechanical'", 'column' => 'id'));
 echo "The maximum robot id of mechanical robots is ", $id, "\n";

public static mixed minimum ([array $parameters])

Allows to get the minimum value of a column that match the specified conditions

//What is the minimum robot id?
 $id = Robots::minimum(array('column' => 'id'));
 echo "The minimum robot id is: ", $id;

 //What is the minimum id of mechanical robots?
 $sum = Robots::minimum(array("type='mechanical'", 'column' => 'id'));
 echo "The minimum robot id of mechanical robots is ", $id;

public static double average ([array $parameters])

Allows to calculate the average value on a column matching the specified conditions

//What's the average price of robots?
 $average = Robots::average(array('column' => 'price'));
 echo "The average price is ", $average, "\n";

 //What's the average price of mechanical robots?
 $average = Robots::average(array("type='mechanical'", 'column' => 'price'));
 echo "The average price of mechanical robots is ", $average, "\n";

public fireEvent (mixed $eventName)

Fires an event, implicitly calls behaviors and listeners in the events manager are notified

public fireEventCancel (mixed $eventName)

Fires an event, implicitly calls behaviors and listeners in the events manager are notified This method stops if one of the callbacks/listeners returns boolean false

protected _cancelOperation ()

Cancel the current operation

public appendMessage (Phalcon\Mvc\Model\MessageInterface $message)

Appends a customized message on the validation process

use Phalcon\Mvc\Model;
 use Phalcon\Mvc\Model\Message as Message;

 class Robots extends Model
 {

   public function beforeSave()
   {
 if ($this->name == 'Peter') {
    $message = new Message("Sorry, but a robot cannot be named Peter");
    $this->appendMessage($message);
 }
   }
 }

protected validate (Phalcon\ValidationInterface $validator)

Executes validators on every validation call

use Phalcon\Mvc\Model;
use Phalcon\Validation;
use Phalcon\Validation\Validator\ExclusionIn;

class Subscriptors extends Model
{

public function validation()
  {
            $validator = new Validation();
            $validator->add('status', new ExclusionIn(array(
            'domain' => array('A', 'I')
    )));

    return $this->validate($validator);
}
}

public validationHasFailed ()

Check whether validation process has generated any messages

use Phalcon\Mvc\Model;
use Phalcon\Mvc\Model\Validator\ExclusionIn as ExclusionIn;

class Subscriptors extends Model
{

public function validation()
  {
  $validator = new Validation();

            $validator->validate('status', new ExclusionIn(array(
            'domain' => array('A', 'I')
    ));

    return $this->validate($validator);
}
}

public getMessages ([mixed $filter])

Returns array of validation messages

$robot = new Robots();
$robot->type = 'mechanical';
$robot->name = 'Astro Boy';
$robot->year = 1952;
if ($robot->save() == false) {
    echo "Umh, We can't store robots right now ";
    foreach ($robot->getMessages() as $message) {
            echo $message;
    }
} else {
    echo "Great, a new robot was saved successfully!";
}

final protected _checkForeignKeysRestrict ()

Reads “belongs to” relations and check the virtual foreign keys when inserting or updating records to verify that inserted/updated values are present in the related entity

final protected _checkForeignKeysReverseCascade ()

Reads both “hasMany” and “hasOne” relations and checks the virtual foreign keys (cascade) when deleting records

final protected _checkForeignKeysReverseRestrict ()

Reads both “hasMany” and “hasOne” relations and checks the virtual foreign keys (restrict) when deleting records

protected _preSave (Phalcon\Mvc\Model\MetaDataInterface $metaData, mixed $exists, mixed $identityField)

Executes internal hooks before save a record

protected _postSave (mixed $success, mixed $exists)

Executes internal events after save a record

protected boolean _doLowInsert (Phalcon\Mvc\Model\MetaDataInterface $metaData, Phalcon\Db\AdapterInterface $connection, string | array $table, boolean | string $identityField)

Sends a pre-build INSERT SQL statement to the relational database system

protected boolean _doLowUpdate (Phalcon\Mvc\Model\MetaDataInterface $metaData, Phalcon\Db\AdapterInterface $connection, string | array $table)

Sends a pre-build UPDATE SQL statement to the relational database system

protected boolean _preSaveRelatedRecords (Phalcon\Db\AdapterInterface $connection, Phalcon\Mvc\ModelInterface[] $related)

Saves related records that must be stored prior to save the master record

protected boolean _postSaveRelatedRecords (Phalcon\Db\AdapterInterface $connection, Phalcon\Mvc\ModelInterface[] $related)

Save the related records assigned in the has-one/has-many relations

public boolean save ([array $data], [array $whiteList])

Inserts or updates a model instance. Returning true on success or false otherwise.

//Creating a new robot
$robot = new Robots();
$robot->type = 'mechanical';
$robot->name = 'Astro Boy';
$robot->year = 1952;
$robot->save();

//Updating a robot name
$robot = Robots::findFirst("id=100");
$robot->name = "Biomass";
$robot->save();

public create ([mixed $data], [mixed $whiteList])

Inserts a model instance. If the instance already exists in the persistence it will throw an exception Returning true on success or false otherwise.

//Creating a new robot
$robot = new Robots();
$robot->type = 'mechanical';
$robot->name = 'Astro Boy';
$robot->year = 1952;
$robot->create();

  //Passing an array to create
  $robot = new Robots();
  $robot->create(array(
  'type' => 'mechanical',
  'name' => 'Astro Boy',
  'year' => 1952
  ));

public update ([mixed $data], [mixed $whiteList])

Updates a model instance. If the instance doesn’t exist in the persistence it will throw an exception Returning true on success or false otherwise.

//Updating a robot name
$robot = Robots::findFirst("id=100");
$robot->name = "Biomass";
$robot->update();

public delete ()

Deletes a model instance. Returning true on success or false otherwise.

$robot = Robots::findFirst("id=100");
$robot->delete();

foreach (Robots::find("type = 'mechanical'") as $robot) {
   $robot->delete();
}

public getOperationMade ()

Returns the type of the latest operation performed by the ORM Returns one of the OP_* class constants

public refresh ()

Refreshes the model attributes re-querying the record from the database

public skipOperation (mixed $skip)

Skips the current operation forcing a success state

public readAttribute (mixed $attribute)

Reads an attribute value by its name

echo $robot->readAttribute('name');

public writeAttribute (mixed $attribute, mixed $value)

Writes an attribute value by its name

$robot->writeAttribute('name', 'Rosey');

protected skipAttributes (array $attributes)

Sets a list of attributes that must be skipped from the generated INSERT/UPDATE statement

<?php

class Robots extends \Phalcon\Mvc\Model
{

   public function initialize()
   {
   $this->skipAttributes(array('price'));
   }
}

protected skipAttributesOnCreate (array $attributes)

Sets a list of attributes that must be skipped from the generated INSERT statement

<?php

class Robots extends \Phalcon\Mvc\Model
{

   public function initialize()
   {
   $this->skipAttributesOnCreate(array('created_at'));
   }
}

protected skipAttributesOnUpdate (array $attributes)

Sets a list of attributes that must be skipped from the generated UPDATE statement

<?php

class Robots extends \Phalcon\Mvc\Model
{

   public function initialize()
   {
   $this->skipAttributesOnUpdate(array('modified_in'));
   }
}

protected allowEmptyStringValues (array $attributes)

Sets a list of attributes that must be skipped from the generated UPDATE statement

<?php

class Robots extends \Phalcon\Mvc\Model
{

   public function initialize()
   {
   $this->allowEmptyStringValues(array('name'));
   }
}

protected hasOne (mixed $fields, mixed $referenceModel, mixed $referencedFields, [mixed $options])

Setup a 1-1 relation between two models

<?php

class Robots extends \Phalcon\Mvc\Model
{

   public function initialize()
   {
   $this->hasOne('id', 'RobotsDescription', 'robots_id');
   }
}

protected belongsTo (mixed $fields, mixed $referenceModel, mixed $referencedFields, [mixed $options])

Setup a relation reverse 1-1 between two models

<?php

class RobotsParts extends \Phalcon\Mvc\Model
{

   public function initialize()
   {
   $this->belongsTo('robots_id', 'Robots', 'id');
   }

}

protected hasMany (mixed $fields, mixed $referenceModel, mixed $referencedFields, [mixed $options])

Setup a relation 1-n between two models

<?php

class Robots extends \Phalcon\Mvc\Model
{

   public function initialize()
   {
   $this->hasMany('id', 'RobotsParts', 'robots_id');
   }
}

protected Phalcon\Mvc\Model\Relation hasManyToMany (string | array $fields, string $intermediateModel, string | array $intermediateFields, string | array $intermediateReferencedFields, mixed $referenceModel, string | array $referencedFields, [array $options])

Setup a relation n-n between two models through an intermediate relation

<?php

class Robots extends \Phalcon\Mvc\Model
{

   public function initialize()
   {
   //Setup a many-to-many relation to Parts through RobotsParts
   $this->hasManyToMany(
            'id',
            'RobotsParts',
            'robots_id',
            'parts_id',
            'Parts',
            'id'
    );
   }
}

public addBehavior (Phalcon\Mvc\Model\BehaviorInterface $behavior)

Setups a behavior in a model

<?php

use Phalcon\Mvc\Model;
use Phalcon\Mvc\Model\Behavior\Timestampable;

class Robots extends Model
{

   public function initialize()
   {
    $this->addBehavior(new Timestampable(array(
            'onCreate' => array(
                    'field' => 'created_at',
                    'format' => 'Y-m-d'
            )
    )));
   }
}

protected keepSnapshots (mixed $keepSnapshot)

Sets if the model must keep the original record snapshot in memory

<?php
use Phalcon\Mvc\Model;

class Robots extends Model
{

   public function initialize()
   {
    $this->keepSnapshots(true);
   }
}

public setSnapshotData (array $data, [array $columnMap])

Sets the record’s snapshot data. This method is used internally to set snapshot data when the model was set up to keep snapshot data

public hasSnapshotData ()

Checks if the object has internal snapshot data

public getSnapshotData ()

Returns the internal snapshot data

public hasChanged ([string | array $fieldName])

Check if a specific attribute has changed This only works if the model is keeping data snapshots

public getChangedFields ()

Returns a list of changed values

protected useDynamicUpdate (mixed $dynamicUpdate)

Sets if a model must use dynamic update instead of the all-field update

<?php
use Phalcon\Mvc\Model;

class Robots extends Model
{

   public function initialize()
   {
    $this->useDynamicUpdate(true);
   }
}

public Phalcon\Mvc\Model\ResultsetInterface getRelated (string $alias, [array $arguments])

Returns related records based on defined relations

protected mixed _getRelatedRecords (string $modelName, string $method, array $arguments)

Returns related records defined relations depending on the method name

final protected static Phalcon\Mvc\ModelInterface[] | Phalcon\Mvc\ModelInterface | boolean _invokeFinder (string $method, array $arguments)

Try to check if the query must invoke a finder

public mixed __call (string $method, array $arguments)

Handles method calls when a method is not implemented

public static mixed __callStatic (string $method, array $arguments)

Handles method calls when a static method is not implemented

public __set (string $property, mixed $value)

Magic method to assign values to the the model

final protected string _possibleSetter (string $property, mixed $value)

Check for, and attempt to use, possible setter.

public Phalcon\Mvc\Model\Resultset | Phalcon\Mvc\Model __get (string $property)

Magic method to get related records using the relation alias as a property

public __isset (mixed $property)

Magic method to check if a property is a valid relation

public serialize ()

Serializes the object ignoring connections, services, related objects or static properties

public unserialize (mixed $data)

Unserializes the object from a serialized string

public dump ()

Returns a simple representation of the object that can be used with var_dump

var_dump($robot->dump());

public array toArray ([array $columns])

Returns the instance as an array representation

print_r($robot->toArray());

public array jsonSerialize ()

Serializes the object for json_encode

echo json_encode($robot);

public static setup (array $options)

Enables/disables options in the ORM

public reset ()

Reset a model instance data