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PHP - Doctrine Class Table Inheritance Help
Trying to create a model where Parent1 and Parent2 extend Grandparent, and Child1_1 and Child1_2 extend Parent1 as well as Child2_1 and Child2_2 extend Parent2. I set up my definitions: Grandparent: type: entity table: grandparent_table inheritanceType: JOINED discriminatorColumn: name: discriminator_column_grandparent type: string repositoryClass: GrandParent id: id: type: integer generator: strategy: AUTO fields: GrandParent_Item1: type: string GrandParent_Item2: type: string Parent1: type: entity table: parent_table1 extends: Grandparent inheritanceType: JOINED discriminatorColumn: name: discriminator_column_parent1 type: string id: id: associationKey: true fields: Parent1_Item1: type: string Parent1_Item2: type: string Parent2: type: entity table: parent_table2 extends: Grandparent inheritanceType: JOINED discriminatorColumn: name: discriminator_column_parent2 type: string id: id: associationKey: true fields: Parent2_Item1: type: string Parent2_Item2: type: string Child1_1: extends: Parent1 type: entity table: child1_1_table id: id: associationKey: true fields: Child1_1_Item1: type: string Child1_1_Item2: type: string Child1_2: extends: Parent1 type: entity table: child1_2_table id: id: associationKey: true fields: Child1_2_Item1: type: string Child1_2_Item2: type: string Child2_1: extends: Parent2 type: entity table: child2_1_table id: id: associationKey: true fields: Child2_1_Item1: type: string Child2_1_Item2: type: string Child2_2: extends: Parent2 type: entity table: child2_2_table id: id: associationKey: true fields: Child2_2_Item1: type: string Child2_2_Item2: type: string And then generate my entities: $ vendor/bin/doctrine orm:generate-entities -vvv src Processing entity "Child1_1" Processing entity "Child1_2" Processing entity "Child2_1" Processing entity "Child2_2" Processing entity "Grandparent" Processing entity "Parent1" Processing entity "Parent2" [OK] Entity classes generated to "/var/www/doctrine/src" Note that I needed to manually edit the Parent1 and 2 classes to extend Grandparent as well as the individual Child classes to extend their applicable Parent. Next, I create the schema: $ vendor/bin/doctrine orm:schema-tool:create --dump-sql The following SQL statements will be executed: CREATE TABLE child1_1_table (id INT NOT NULL, Child1_1_Item1 VARCHAR(255) NOT NULL, Child1_1_Item2 VARCHAR(255) NOT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE = InnoDB; CREATE TABLE child1_2_table (id INT NOT NULL, Child1_2_Item1 VARCHAR(255) NOT NULL, Child1_2_Item2 VARCHAR(255) NOT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE = InnoDB; CREATE TABLE child2_1_table (id INT NOT NULL, Child2_1_Item1 VARCHAR(255) NOT NULL, Child2_1_Item2 VARCHAR(255) NOT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE = InnoDB; CREATE TABLE child2_2_table (id INT NOT NULL, Child2_2_Item1 VARCHAR(255) NOT NULL, Child2_2_Item2 VARCHAR(255) NOT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE = InnoDB; CREATE TABLE grandparent_table (id INT AUTO_INCREMENT NOT NULL, GrandParent_Item1 VARCHAR(255) NOT NULL, GrandParent_Item2 VARCHAR(255) NOT NULL, discriminator_column_grandparent VARCHAR(255) NOT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE = InnoDB; CREATE TABLE parent_table1 (id INT NOT NULL, Parent1_Item1 VARCHAR(255) NOT NULL, Parent1_Item2 VARCHAR(255) NOT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE = InnoDB; CREATE TABLE parent_table2 (id INT NOT NULL, Parent2_Item1 VARCHAR(255) NOT NULL, Parent2_Item2 VARCHAR(255) NOT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE = InnoDB; ALTER TABLE child1_1_table ADD CONSTRAINT FK_3445750EBF396750 FOREIGN KEY (id) REFERENCES grandparent_table (id) ON DELETE CASCADE; ALTER TABLE child1_2_table ADD CONSTRAINT FK_5AD6F93BF396750 FOREIGN KEY (id) REFERENCES grandparent_table (id) ON DELETE CASCADE; ALTER TABLE child2_1_table ADD CONSTRAINT FK_DC849CBBF396750 FOREIGN KEY (id) REFERENCES grandparent_table (id) ON DELETE CASCADE; ALTER TABLE child2_2_table ADD CONSTRAINT FK_3C205356BF396750 FOREIGN KEY (id) REFERENCES grandparent_table (id) ON DELETE CASCADE; ALTER TABLE parent_table1 ADD CONSTRAINT FK_5386E15BBF396750 FOREIGN KEY (id) REFERENCES grandparent_table (id) ON DELETE CASCADE; ALTER TABLE parent_table2 ADD CONSTRAINT FK_CA8FB0E1BF396750 FOREIGN KEY (id) REFERENCES grandparent_table (id) ON DELETE CASCADE; I see how Grandparent has discriminatorColumn discriminator_column_grandparent as expected. But why doesn't Parent1 and Parent2 have discriminatorColumn's discriminator_column_parent1 and discriminator_column_parent2? Note that I've also tried making Grandparent, Parent1, and Parent2 abstract but get the same results. I've also messed around with Mapped Superclasses, but I don't think they are applicable for my use (correct me if you think I am wrong). Thanks! Similar TutorialsI am doing something stupid, and just can't see it and hoping someone has better eyes than mine. I have two Doctrine entities which extend another class using single class inheritance, but when retrieving the collection of either of the two child classes, I get the collection of the parent (i.e. combination of both child classes). I've experimented with making the parent abstract and not including it in the discriminator map but no change. In hopes to identifying my mistake, I created a new Symfony project with just the relevant classes and show all steps below. Initial install by running the following: symfony new test composer update composer require doctrine/orm composer require migrations composer require maker --dev composer require security Using "php bin/console make:user", I created three users: AbstractUser, OwnerUser, VendorUser. I then edited all three entities and the owner and vendor repositories as follows:
<?php
namespace App\Entity;
use App\Repository\AbstractUserRepository;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Security\Core\User\UserInterface;
/**
* @ORM\Entity(repositoryClass=AbstractUserRepository::class)
* @ORM\InheritanceType("SINGLE_TABLE")
* @ORM\DiscriminatorColumn(name="discr", type="string")
* @ORM\DiscriminatorMap({"owner" = "OwnerUser", "vendor" = "VendorUser", "abstract" = "AbstractUser"})
*/
class AbstractUser implements UserInterface
{
// No changes made
}
<?php
namespace App\Entity;
use App\Repository\OwnerUserRepository;
use Doctrine\ORM\Mapping as ORM;
/**
* @ORM\Entity(repositoryClass=OwnerUserRepository::class)
*/
class OwnerUser extends AbstractUser
{
}
<?php
namespace App\Entity;
use App\Repository\VendorUserRepository;
use Doctrine\ORM\Mapping as ORM;
/**
* @ORM\Entity(repositoryClass=VendorUserRepository::class)
*/
class VendorUser extends AbstractUser
{
}
No change to AbstractUserRepository.
<?php
namespace App\Repository;
class OwnerUserRepository extends AbstractUserRepository
{
}
<?php
namespace App\Repository;
class VendorUserRepository extends AbstractUserRepository
{
}
Then I migrated the DB. php bin/console doctrine:schema:drop --full-database --force rm migrations/* php bin/console make:migration php bin/console doctrine:migrations:migrate Next I created two OwnerUsers and one VendorUser using a command script I wrote shown at the end of this post. # php bin/console app:tester create OwnerUser roles=[] # php bin/console app:tester create OwnerUser roles=[] # php bin/console app:tester create VendorUser roles=[] Checked the PostSQL database. facdocs=> \d List of relations Schema | Name | Type | Owner --------+-----------------------------+----------+--------- public | abstract_user | table | facdocs public | abstract_user_id_seq | sequence | facdocs public | doctrine_migration_versions | table | facdocs (3 rows) facdocs=> select * from abstract_user; id | email | roles | password | discr ----+-------------+-------+----------------+-------- 1 | setEmail158 | [] | setPassword146 | owner 2 | setEmail87 | [] | setPassword101 | owner 3 | setEmail62 | [] | setPassword20 | vendor (3 rows) facdocs=>
Next, I retrieved the entities using Doctrine along with the beforementioned test script.
[michael@devserver test]$ php bin/console app:tester read VendorUser
Test Entity Manager
============
command: read
entity: VendorUser
class: \App\Entity\VendorUser
properties: []
array(3) {
[0]=>
object(stdClass)#293 (5) {
["__CLASS__"]=>
string(20) "App\Entity\OwnerUser"
["id:App\Entity\AbstractUser:private"]=>
int(1)
["email:App\Entity\AbstractUser:private"]=>
string(11) "setEmail158"
["roles:App\Entity\AbstractUser:private"]=>
string(8) "Array(0)"
["password:App\Entity\AbstractUser:private"]=>
string(14) "setPassword146"
}
[1]=>
object(stdClass)#294 (5) {
["__CLASS__"]=>
string(20) "App\Entity\OwnerUser"
["id:App\Entity\AbstractUser:private"]=>
int(2)
["email:App\Entity\AbstractUser:private"]=>
string(10) "setEmail87"
["roles:App\Entity\AbstractUser:private"]=>
string(8) "Array(0)"
["password:App\Entity\AbstractUser:private"]=>
string(14) "setPassword101"
}
[2]=>
object(stdClass)#358 (5) {
["__CLASS__"]=>
string(21) "App\Entity\VendorUser"
["id:App\Entity\AbstractUser:private"]=>
int(3)
["email:App\Entity\AbstractUser:private"]=>
string(10) "setEmail62"
["roles:App\Entity\AbstractUser:private"]=>
string(8) "Array(0)"
["password:App\Entity\AbstractUser:private"]=>
string(13) "setPassword20"
}
}
[michael@devserver test]$
[michael@devserver test]$ php bin/console app:tester read OwnerUser
Test Entity Manager
============
command: read
entity: OwnerUser
class: \App\Entity\OwnerUser
properties: []
array(3) {
[0]=>
object(stdClass)#293 (5) {
["__CLASS__"]=>
string(20) "App\Entity\OwnerUser"
["id:App\Entity\AbstractUser:private"]=>
int(1)
["email:App\Entity\AbstractUser:private"]=>
string(11) "setEmail158"
["roles:App\Entity\AbstractUser:private"]=>
string(8) "Array(0)"
["password:App\Entity\AbstractUser:private"]=>
string(14) "setPassword146"
}
[1]=>
object(stdClass)#294 (5) {
["__CLASS__"]=>
string(20) "App\Entity\OwnerUser"
["id:App\Entity\AbstractUser:private"]=>
int(2)
["email:App\Entity\AbstractUser:private"]=>
string(10) "setEmail87"
["roles:App\Entity\AbstractUser:private"]=>
string(8) "Array(0)"
["password:App\Entity\AbstractUser:private"]=>
string(14) "setPassword101"
}
[2]=>
object(stdClass)#358 (5) {
["__CLASS__"]=>
string(21) "App\Entity\VendorUser"
["id:App\Entity\AbstractUser:private"]=>
int(3)
["email:App\Entity\AbstractUser:private"]=>
string(10) "setEmail62"
["roles:App\Entity\AbstractUser:private"]=>
string(8) "Array(0)"
["password:App\Entity\AbstractUser:private"]=>
string(13) "setPassword20"
}
}
[michael@devserver test]$
As seen, when requesting a collection of either OwnerUsers or VendorUsers, I am retrieving the combination of both collections. I am sure it is totally user (i.e. me) error, but just don't see it. Are you able to see my stupid mistake? Thanks
<?php
namespace App\Command;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Input\InputArgument;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\Common\Util\Debug;
class Tester extends Command
{
// the name of the command (the part after "bin/console")
protected static $defaultName = 'app:tester';
private $entityManager;
public function __construct(EntityManagerInterface $entityManager)
{
$this->entityManager = $entityManager;
parent::__construct();
}
protected function configure()
{
$this
->setDescription('Doctrine Object Tester. --help')
->setHelp('This command allows you to query a single entity...')
->addArgument('cmd', InputArgument::REQUIRED, 'The command name [create, read].')
->addArgument('entity', InputArgument::REQUIRED, 'The name of the entity.')
->addArgument('properties', InputArgument::IS_ARRAY | InputArgument::OPTIONAL, 'properies (foo=foo bla=[]')
;
}
private function getProperties($input)
{
$properties=[];
foreach($input as $property) {
$property=explode('=', $property);
$name = trim($property[0]);
$value = trim($property[1]);
if($value === '[]') {
$value = [];
}
elseif($value === 'null') {
$value = null;
}
elseif(substr($value, 0, 1) === '/') {
$value = explode('/', substr($value, 1));
$class = ucfirst(substr($value[0], 0, -1));
$class = '\App\Entity\\'.$class;
if(count($value)===1) {
$value = $this->entityManager->getRepository($class)->findAll();
}
else {
$value = $this->entityManager->getRepository($class)->find($value[1]);
}
}
$properties[$name] = $value;
}
return $properties;
}
protected function execute(InputInterface $input, OutputInterface $output)
{
$output->writeln([
'Test Entity Manager',
'============',
'',
]);
// retrieve the argument value using getArgument()
$cmd = $input->getArgument('cmd');
$output->writeln('command: '.$cmd);
$entity = $input->getArgument('entity');
$output->writeln('entity: '.$entity);
$class = '\App\Entity\\'.$entity;
$output->writeln('class: '.$class);
$properties = $this->getProperties($input->getArgument('properties'));
$output->writeln('properties: '.json_encode($properties));
switch($cmd) {
case 'create':
$entity = new $class;
foreach(get_class_methods($entity) as $method) {
if(substr($method, 0, 3)==='set') {
$m = lcfirst(substr($method, 3));
$entity->$method(array_key_exists($m, $properties)?$properties[$m]:$method.rand(0,200));
}
}
$this->entityManager->persist($entity);
$this->entityManager->flush();
$output->writeln('entity created');
break;
case 'read':
Debug::dump($this->entityManager->getRepository($class)->findAll());
break;
default:
$output->writeln('INVALID COMMAND: '.$cmd.'. Only create and read are supported.');
}
return Command::SUCCESS;
}
}
I am trying to class type inheritance with Doctrine. Eventually, I will be defining things using XML, but all the examples are done using doctags. I found the following and it seems to work.
<?php
use Doctrine\ORM\Mapping as ORM;
/**
* Inventory entity
*
* @ORM\Entity(repositoryClass="Inventory")
* @ORM\Table(name="inventory")
* @ORM\InheritanceType("JOINED")
* @ORM\DiscriminatorColumn(name="discriminator_column", type="string")
* @ORM\DiscriminatorMap({"inventory" = "AbstractItem", "inventory_room" = "Room"})
*/
abstract class AbstractItem
{
/**
* @ORM\Id @ORM\Column(name="inventory_id") @ORM\GeneratedValue
* @var int
*/
protected $inventory_id;
/**
* @ORM\Column(type="string")
* @var string
*/
protected $category;
/**
* @ORM\Column(type="string")
* @var string
*/
protected $part_number;
}
use Doctrine\ORM\Mapping as ORM;
/**
* Inventory Room entity
* @ORM\Entity
* @ORM\Table(name="inventory_room")
*/
class Room extends AbstractItem
{
/**
* @ORM\Column(type="string")
* @var string
*/
protected $room_type;
/**
* @ORM\Column(type="string")
* @var string
*/
protected $rack_limit;
But then I convert it to XML or YAML, and I get a Entity class 'Room' used in the discriminator map of class 'AbstractItem' does not exist error when trying to build the classes. I've also tried changing the type to mappedSuperclass, but no success. Any ideas? Also, what is the purpose of the DiscriminatorColumn? Thanks
AbstractItem: type: entity table: inventory inheritanceType: JOINED discriminatorColumn: name: discriminator_column type: string discriminatorMap: inventory: AbstractItem inventory_room: Room repositoryClass: Inventory id: inventory_id: type: string fields: category: type: string part_number: type: string Room: type: entity table: inventory_room fields: room_type: type: string rack_limit: type: string
<?xml version="1.0" encoding="utf-8"?> <doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping https://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd"> <entity repository-class="Inventory" name="AbstractItem" table="inventory" inheritance-type="JOINED"> <discriminator-column name="discriminator_column" type="string" length="255"/> <discriminator-map> <discriminator-mapping value="inventory" class="AbstractItem"/> <discriminator-mapping value="inventory_room" class="Room"/> </discriminator-map> <id name="inventory_id" type="string" column="inventory_id"> <generator strategy="IDENTITY"/> </id> <field name="category" type="string" column="category" precision="0" scale="0" nullable="false"/> <field name="part_number" type="string" column="part_number" precision="0" scale="0" nullable="false"/> </entity> </doctrine-mapping> <?xml version="1.0" encoding="utf-8"?> <doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping https://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd"> <entity name="Room" table="inventory_room"> <id name="inventory_id" type="string" column="inventory_id"> <generator strategy="IDENTITY"/> </id> <field name="room_type" type="string" column="room_type" precision="0" scale="0" nullable="false"/> <field name="rack_limit" type="string" column="rack_limit" precision="0" scale="0" nullable="false"/> <field name="category" type="string" column="category" precision="0" scale="0" nullable="false"/> <field name="part_number" type="string" column="part_number" precision="0" scale="0" nullable="false"/> </entity> </doctrine-mapping>
Hi, After a long time I start php again to do some stuff and using OOP concept for the first time and getting this below error Code: [Select] PHP Fatal error: Class 'SystemConfig' not found in /home/tanveer/Workspace/EmailTest/webapp/classes/MailParser.class.php on line 12, referer: http://localhost/EmailTest/public_html/index.php My project directory structure is as follows: Code: [Select] \webapp: |- classes |- MailParser.class.php |-DatabaseConnect.class.php |-SystemConfig.class.php \public_html: |-header.php |-footer.php |-gencsv.php |-stat.php \css |-style.css \images index.php And the php code file that I am trying to make work is as follows: class MailParser extends SystemConfig { /* Reads the files passed line-by-line * @param $fileName */ public function readFiles($fileName){ $fileHandler = fopen($fileName,'r'); while ($line = fgets($fileHandler)) { echo $line."<br />"; } fclose($fileHandler); } /* Traverse the user specified directory * @param $dirPath */ public function traverseDirectory($dirPath) { echo $dirPath; $sentFolderPath = new SystemConfig(); $sentFolderPath->getSentMailFolder(); $totalDirPath = $dirPath."/".$sentFolderPath; echo $totalDirPath; $io=0; if ($handle = @opendir($dirPath)) { while (false !== ($file = readdir($handle))) { if ($file != "." && $file != "..") { $newdir = ""; $filetext = ""; if (!is_file($dirPath."/".$file) or is_dir($dirPath) ) { $io++; $newdir.= $dirPath."/".$file."/"; print $newdir."<br />"; $this->traverseDirectory($newdir); if(is_file($dirPath.$file)) { $text = str_replace('//','/',"".$dirPath.$file."\n"); } } } } closedir($handle); } } } $rmf = new MailParser(); $rmf->traverseDirectory($_POST["dirpath"]); ?> Hoping to get some thoughts on how Doctrine array collections should be used when the position of the items in the collection must be controlled. For instance, I have a Chart object which has various primitive properties as well as a series property which is an array collection. Each member in the series collection is a Serie object which has various primitive properties as well as a data property which is an array collection. Each member in the data collection is a Datum object which includes various primitive properties. The following just refers to the series collection, however, will be doing the same with the data collection. Chart will have methods to add a Serie to the end of the series collection, modify a Serie for a given position, delete a Serie for a given position, swap the position of two Serie, and retrieve all Serie(s) in their designated position order. To implement this, my thought is to include a integer position property in Serie, and when retrieving the results will just ORDER BY this column if using DQL or maybe will use Criteria to filter the results. I am not, however, sure how to implement some of the other methods. When adding a new Serie to the end of the collection, should I do something like:
class Chart
{
public function addSerie(array $params):Chart {
$serie=new Serie();
$serie->setName($params['name']);
$position=$this->series->count();
$serie->setPosition($position);
$this->addSeries($serie);
}
}
class Chart
{
public function __construct() {
$this->series->getIterator()->uasort(function ($first, $second) {
return (int) $first->getPosition() > (int) $second->getPosition() ? 1 : -1;
});
}
}
PS. Originally, I was using the name "Series" instead of "Serie", but the lack of separate forms for singular and plural was messing with me. Was thinking of using SeriesNode instead, but didn't want to need to follow this same naming convention for other items... I think I am close, but not sure if I am quite there. Am I doing this correctly? I have several entity classes which will use class type inheritance:
MyNamespace\MyApp\Vehicle\Vehicle #MyNamespace.MyApp.Vehicle.Vehicle.dcm.yml MyNamespace\MyApp\Vehicle\Vehicle: type: entity table: vehicle_table inheritanceType: JOINED discriminatorColumn: name: discriminator_column type: string discriminatorMap: vehicle: Vehicle groundVehicle: MyNamespace\MyApp\Vehicle\GroundVehicle\GroundVehicle airVehicle: MyNamespace\MyApp\Vehicle\AirVehicle\AirVehicle repositoryClass: Vehicle id: id: type: integer generator: strategy: AUTO fields: grandParentItem1: type: string grandParentItem2: type: string #MyNamespace.MyApp.Vehicle.AirVehicle.AirVehicle.dcm.yml MyNamespace\MyApp\Vehicle\AirVehicle\AirVehicle: type: entity table: air_vehicle extends: MyNamespace\MyApp\Vehicle\Vehicle inheritanceType: JOINED discriminatorMap: airVehicle: AirVehicle airplane: MyNamespace\MyApp\Vehicle\AirVehicle\Airplane\Airplane rocket: MyNamespace\MyApp\Vehicle\AirVehicle\Rocket\Rocket repositoryClass: AirVehicle id: id: associationKey: true fields: parentItem1: type: string parentItem2: type: string #MyNamespace.MyApp.Vehicle.AirVehicle.Rocket.Rocket.dcm.yml MyNamespace\MyApp\Vehicle\AirVehicle\Rocket\Rocket: extends: MyNamespace\MyApp\Vehicle\AirVehicle\AirVehicle type: entity table: rocket_table id: id: associationKey: true repositoryClass: Rocket fields: childItem1: type: string childItem2: type: string I haven't shown GroundVehicle or Train, Car, and Airplane, but they are almost identical to AirVehicle and Rocket, respectively.
I've discovered that the barebone entities need to be manually created prior to using orm:generate-entities else I get class not found errors, and have created them as shown below.
[michael@devserver doctrine]$ find inheritance_src -name "*.php" -exec cat {} \;
<?php
namespace MyNamespace\MyApp\Vehicle\AirVehicle\Airplane;
class Airplane extends \MyNamespace\MyApp\Vehicle\AirVehicle\AirVehicle{}
<?php
namespace MyNamespace\MyApp\Vehicle\AirVehicle\Rocket;
class Rocket extends \MyNamespace\MyApp\Vehicle\AirVehicle\AirVehicle{}
<?php
namespace MyNamespace\MyApp\Vehicle\AirVehicle;
abstract class AirVehicle extends \MyNamespace\MyApp\Vehicle\Vehicle{}
<?php
namespace MyNamespace\MyApp\Vehicle\GroundVehicle\Car;
class Car extends \MyNamespace\MyApp\Vehicle\GroundVehicle\GroundVehicle{}
<?php
namespace MyNamespace\MyApp\Vehicle\GroundVehicle\Train;
class Train extends \MyNamespace\MyApp\Vehicle\GroundVehicle\GroundVehicle{}
<?php
namespace MyNamespace\MyApp\Vehicle\GroundVehicle;
abstract class GroundVehicle extends \MyNamespace\MyApp\Vehicle\Vehicle{}
<?php
namespace MyNamespace\MyApp\Vehicle;
abstract class Vehicle{}
I then am able to successfully create the entities using orm:generate-entities, schema using orm:schema-tool:create, and repositories using orm:generate-repositories. Does everything seem correct? A couple of issues which I have my doubts: Locating the classes in inheritance_src/MyNamespace/MyApp instead of inheritance_src/MyApp. I tried to do the later and modify my psr-4 autoloader to use "MyNamespace\\": "inheritance_src/", but could not get it working without first creating the entities, editing them to add the "abstract" and "extend" portions, and then moving them to one directory lower. Needing to manually create the barebone classes in the first place. My meta-data definitions includes "extends: MyNamespace\MyApp\Vehicle\Vehicle", so I would thought it would not be necessary. Locate both the entities and repositories in the same folder. For that matter, I will probably be locating my service in the same folder as well. It seems that most frameworks will locate all the entities in one folder (with of course subdirectories), repositories in another, services in another, etc. The way I am doing seems to be organized domain modules as described by https://mnapoli.fr/organizing-code-into-domain-modules/. Any compelling reasons to do it one way or the other?
Thank you The following metadata... <?xml version="1.0" encoding="utf-8"?> <doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping https://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd"> <entity name="NotionCommotion\App\Account\PublicAccountIdIncrementor" table="public_account_id_incrementor"> <id name="account" association-key="true"/> <field name="chart_id" type="integer"> <options> <option name="default">0</option> </options> </field> <field name="source_id" type="integer"> <options> <option name="default">0</option> </options> </field> <one-to-one field="account" target-entity="NotionCommotion\App\Account\Account" fetch="LAZY" inversed-by="idPublicIncrementor"> <join-columns> <join-column name="id" referenced-column-name="id" nullable="false"/> </join-columns> </one-to-one> </entity> </doctrine-mapping> <?xml version="1.0" encoding="utf-8"?> <doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping https://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd"> <entity name="NotionCommotion\App\Account\Account" table="account"> <id name="id" type="integer"/> <one-to-one field="idPublicIncrementor" target-entity="NotionCommotion\App\Account\PublicAccountIdIncrementor" mapped-by="account"/> </entity> </doctrine-mapping> creates the following methods...
<?php
class Account
{
/**
* Set idPublicIncrementor.
*
* @param \NotionCommotion\App\Account\PublicAccountIdIncrementor|null $idPublicIncrementor
*
* @return Account
*/
public function setIdPublicIncrementor(\NotionCommotion\App\Account\PublicAccountIdIncrementor $idPublicIncrementor = null)
{
$this->idPublicIncrementor = $idPublicIncrementor;
return $this;
}
/**
* Get idPublicIncrementor.
*
* @return \NotionCommotion\App\Account\PublicAccountIdIncrementor|null
*/
public function getIdPublicIncrementor()
{
return $this->idPublicIncrementor;
}
}
As seen, Account::idPublicIncrementor allows NULL value. Is this by design since PublicAccountIdIncrementor's primary key is Account's primary key? If not, how do I instruct Doctrine to prevent NULL? I'm starting in Doctrine 2.4 and I'm developing a system where I separate the core files and application files, as follows:
/root |-- /Src |-- /App |-- /Model |-- ** (Application Entities) ** |-- /Core |-- /Model |-- ** (Core Entities) **In the Doctrine documentation shows the following form to set 1 directory for Esntitys: $config = Setup::createAnnotationMetadataConfiguration(array(__DIR__. "/src"), $isDevMode);But when I have to configure more than one directory that will contain the Entitys of my application, how to proceed? Thanks in advance! This topic has been moved to Other Libraries and Frameworks. http://www.phpfreaks.com/forums/index.php?topic=324009.0 Finally getting around to giving Doctrine a try. Looks like YAML is depreciated, so my choices are DocBlocks or XML. I am sure it is personal choice, however, I would like to start off with what most feel is the best path. Any recommendations? Thanks Anyone know why the following results in an error? Not a big deal as memory is not an issue and I can (and have) just changed it to create a new array instead of using a generator, but still curious. Thanks
<?php
foreach($doctrineCollection as $doctrineEntity){
yield new MyWrapper($doctrineEntity);
/*
After around 4 iterations, results in the following error:
syslog
Apr 06 15:25:25 myserver.net kernel: php-fpm[42889]: segfault at 7f8156a14100 ip 000055bb1d79acfd sp 00007ffd0b50a968 error 4 in php-fpm[55bb1d47c000+46e000]
/var/log/php-fpm/error.log
[Mon Apr 06 20:06:38.781360 2020] [proxy_fcgi:error] [pid 1501:tid 140210423629568] (104)Connection reset by peer: [client 12.345.67.890:45574] AH01075: Error dispatching request to :
/var/log/httpd/error_log
[06-Apr-2020 20:04:52] WARNING: [pool michael] child 5524 exited on signal 11 (SIGSEGV) after 0.138268 seconds from start
[06-Apr-2020 20:04:52] NOTICE: [pool michael] child 5526 started
*/
}
class MyWrapper
{
private $doctrineEntity;
public function __construct($doctrineEntity)
{
$this->doctrineEntity=$doctrineEntity;
}
}
OK, Here is the code $sql = "SELECT TrialListing.listingID AS Trial, TrialClass.classID AS Class, place.place_name AS Place, CONCAT_WS( ' ', pedigree.pretitle, pedigree.`Name`) AS Hound, CONCAT_WS( ' ', ped2.pretitle, ped2. NAME )AS Sire, CONCAT_WS( ' ', ped3.pretitle, ped3. NAME )AS Dam, pedigree.Breeder, pedigree.`Owner`, CASE WHEN placement.place_id < 5 THEN TRUNCATE(TrialClass.number_of_entrants / placement.place_id,2) WHEN placement.place_id = 5 THEN '' ELSE 0 END AS Score FROM TrialListing Left Join TrialClass ON TrialListing.listingID = TrialClass.listingID JOIN placement ON placement.event_id = TrialClass.trialClassID JOIN pedigree ON pedigree.PedigreeId = placement.hound_id LEFT OUTER JOIN pedigree AS ped2 ON pedigree.SireId = ped2.PedigreeId LEFT OUTER JOIN pedigree AS ped3 ON pedigree.DamId = ped3.PedigreeId LEFT JOIN place ON place.place_id = placement.place_id WHERE TrialListing.listingID = 11 ORDER BY Class, FIELD(place.place_id, '1', '2', '3', '4', '0') "; // Database Query $result = mysql_query("$sql"); // Database Query result $num_rows = mysql_num_rows($result); // Starts the table echo "<table class=\"clubList\">\n <tr> <th>trialID</th> <th>ClassID</th> <th>Place</th> <th>Hound</th> <th>Sire</th> <th>Dam</th> <th>Score</th> </tr>"; // Create the contents of the table. for( $i = 0; $i < $row = mysql_fetch_array($result); $i++){ echo "<tr>\n" ."<td>".$row["Trial"]."</td>\n" ."<td>".$row["Class"]."</td>\n" ."<td>".$row["Place"]."</td>\n" ."<td>".$row["Hound"]."</td>\n" ."<td>".$row["Sire"]."</td>\n" ."<td>".$row["Dam"]."</td>\n" ."<td>".$row["Score"]."</td>\n" ."</tr>";} echo "</TABLE>"; Here is the output, I added the TrialID & ClassID for informational purposes, they do not need to be displayed in the live table. trialID ClassID Place Hound Sire Dam Score 11 1 1st Eaton Brook Tug Hill Tatonka Eaton Brook Hickety Hawk Eaton Brook Gunner's Beulah 43.00 11 1 2nd FC North Bend Igloo FC DFJ Murphy White IFC Brad-Ju's Bella Donna 21.50 11 1 3rd FC North Bend Igloo FC DFJ Murphy White IFC Brad-Ju's Bella Donna 14.33 11 1 4th Rail Road Spike VI Elwell's Mike Elwell's Hannah 10.75 11 1 NBQ FC Fish Creek Spike Fish Creek Bull II Fish Creek Susie [H849395] 11 2 1st Enman Hill Sweet Poppy FTCH Straight Arrow Lucky of Coos 32.00 11 2 2nd Fishflakes Penny At Harehaven FTCH Jill's Fair-Isle Spud FTCH Millbridge Brownie 16.00 11 2 3rd Line Elm Flakers IFC Flakers Rex IFC Line Elm Ginger 10.66 11 2 4th FTCH Fareast Mookie FTCH Mellowrun Sly FTCH Cape Breton Maude 8.00 11 2 NBQ FTCH Mellowrun Sly Mellowrun Skylighter FTCH Mellowrun Becka 11 3 1st Bojangle V Lee Otworth Half Acre's Cocoa Candy 23.00 11 3 2nd Gay Doll Gay Roll II Gay Idol 11.50 11 3 3rd Bruce's Blue Lady FC Kilsock's Blue Creek Bart Bishopville's Zippy 7.66 11 3 4th FC Pearson Creek Barbin FC Pearson Creek Barbarian FC B-Line Stubby 5.75 11 3 NBQ Sims Creek Cricket Ronnie Joe Sims Creek Tiny 11 4 1st FTCH Fareast Mookie FTCH Mellowrun Sly FTCH Cape Breton Maude 26.00 11 4 2nd FTCH Mellowrun Sly Mellowrun Skylighter FTCH Mellowrun Becka 13.00 11 4 3rd Fishflakes Penny At Harehaven FTCH Jill's Fair-Isle Spud FTCH Millbridge Brownie 8.66 11 4 4th Enman Hill Sweet Poppy FTCH Straight Arrow Lucky of Coos 6.50 11 4 NBQ Line Elm Flakers IFC Flakers Rex IFC Line Elm Ginger Below is what I would like to generate. How do I word or nest the proper PHP code/loops to accomplish this? ClassID Place Hound Sire Dam Score 1st Eaton Brook Tug Hill Tatonka Eaton Brook Hickety Hawk Eaton Brook Gunner's Beulah 43.00 2nd FC North Bend Igloo FC DFJ Murphy White IFC Brad-Ju's Bella Donna 21.50 3rd FC North Bend Igloo FC DFJ Murphy White IFC Brad-Ju's Bella Donna 14.33 4th Rail Road Spike VI Elwell's Mike Elwell's Hannah 10.75 NBQ FC Fish Creek Spike Fish Creek Bull II Fish Creek Susie [H849395] ClassID Place Hound Sire Dam Score 1st Enman Hill Sweet Poppy FTCH Straight Arrow Lucky of Coos 32.00 2nd Fishflakes Penny At Harehaven FTCH Jill's Fair-Isle Spud FTCH Millbridge Brownie 16.00 3rd Line Elm Flakers IFC Flakers Rex IFC Line Elm Ginger 10.66 4th FTCH Fareast Mookie FTCH Mellowrun Sly FTCH Cape Breton Maude 8.00 NBQ FTCH Mellowrun Sly Mellowrun Skylighter FTCH Mellowrun Becka ClassID Place Hound Sire Dam Score 1st Bojangle V Lee Otworth Half Acre's Cocoa Candy 23.00 2nd Gay Doll Gay Roll II Gay Idol 11.50 3rd Bruce's Blue Lady FC Kilsock's Blue Creek Bart Bishopville's Zippy 7.66 4th FC Pearson Creek Barbin FC Pearson Creek Barbarian FC B-Line Stubby 5.75 NBQ Sims Creek Cricket Ronnie Joe Sims Creek Tiny ClassID Place Hound Sire Dam Score 1st FTCH Fareast Mookie FTCH Mellowrun Sly FTCH Cape Breton Maude 26.00 2nd FTCH Mellowrun Sly Mellowrun Skylighter FTCH Mellowrun Becka 13.00 3rd Fishflakes Penny At Harehaven FTCH Jill's Fair-Isle Spud FTCH Millbridge Brownie 8.66 4th Enman Hill Sweet Poppy FTCH Straight Arrow Lucky of Coos 6.50 NBQ Line Elm Flakers IFC Flakers Rex IFC Line Elm Ginger I am a little confused with the difference between Symfony Events and Event Listners and Doctrine Events. The Doctrine events look pretty straight forward and are primary used for entity persistence, and I have outlined my understanding below: Doctrine Lifecycle Callbacks. Single entity and single Doctrine event. Method in class. Good performance. Don't have access to Symfony services (all others do) Doctrine Lifecycle Listeners. All entities and single Doctrine event. Separate class and configured in config.service.yaml. Doctrine Entity Listeners. Single entities and single Doctrine event. Separate class and configured in config.service.yaml. Doctrine Lifecycle Subscribers. All entities and multiple Doctrine event. Must implement EventSubscriber (or probably EventSubscriberInterface) Separate class and configured in config.service.yaml.I am more confused with the Symfony events and my interpretation as listed below is likely incorrect. Symfony Event Listeners. Single Symfony event. Separate class and configured in config.service.yaml. More flexible because bundles can enable or disable each of them conditionally depending on some configuration value. Symfony Event Subscribers. All specified Symfony events. Must implement EventSubscriberInterface Separate class but NOT configured in config.service.yaml but in class. Easier to reuse because the knowledge of the events is kept in the class rather than in the service definition.Are they used for totally different purposes or can one use Symfony events to also deal with entities? Where would one want to use these Symfony events? Is there a reason why Doctrine Lifecycle Subscribers are located in src/EventListener and not src/EventSubscriber Are Doctrine Lifecycle and Entity Listeners really only for a single event as I interpret the documentation states, or is it one method per Doctrine event such as the following? App\EventListener\SearchIndexer: tags: - name: 'doctrine.event_listener' event: 'postPersist' - name: 'doctrine.event_listener' event: 'postUpdate'
I have
class MyProductClass
{
function computeProductA()
{
doSometing();
}
function computeProductB()
{
doSometingElse();
$this->computeProductCommon();
}
function computeProductC()
{
$this->computeProductCommon();
}
function computeProductCommon()
{
}
}
And I was wondering ... does it make sense to move out product-specific functions into their own classes and then have them extend MyProductClass.
While I think it makes sense to me from an aesthetic point of view, and that I get to use object oriented principles, I could not answer myself as to "Why" I would do that.
So, why? Why would I do that, and should I?
Right now in the code, various product specific classes instantiate MyProductClass and just use their specific and generic functions, as needed.
Edited by dennis-fedco, 15 December 2014 - 09:55 AM. Context. Class AbstractTenantEntity's purpose is to restrict access to data to the tenant (i.e. account, owner, etc) that owns the data. Any entity which extends it will have the TenantId added when created and the TenantId in the WHERE clause for all other requests. Tenant typically does not have collections of the various entities which extend AbstractTenantEntity, but does for a few of them do. When using annotation, I handled it by applying Doctrine's AssociationOverride annotation to the extended classes which should have a collection in Tenant. use Doctrine\ORM\Mapping as ORM;
/**
* @ORM\Entity()
*/
class Tenant
{
/**
* @ORM\OneToMany(targetEntity=Asset::class, mappedBy="tenant")
*/
private $assets;
// Other properties and typical getters and setters
}
use Doctrine\ORM\Mapping as ORM;
abstract class AbstractTenantEntity implements TenantInterface
{
/**
* inversedBy performed in child where required
* @ORM\ManyToOne(targetEntity=Tenant::class)
* @ORM\JoinColumn(nullable=false)
*/
protected ?Tenant $tenant = null;
// Typical getters and setters
}
use Doctrine\ORM\Mapping as ORM;
/**
* @ORM\Entity()
* @ORM\AssociationOverrides({
* @ORM\AssociationOverride(name="tenant", inversedBy="assets")
* })
*/
class Asset extends PublicIdTenantEntity
{
// Various properties and typical getters and setters
}
So, now I am changing from annotations to attributes, and modified AbstractTenantEntity as follows: use Doctrine\ORM\Mapping\ManyToOne;
use Doctrine\ORM\Mapping\JoinColumn;
abstract class AbstractTenantEntity implements TenantInterface
{
/**
* inversedBy performed in child where required
*/
#[ManyToOne(targetEntity: Tenant::class)]
#[JoinColumn(nullable: false)]
protected ?Tenant $tenant = null;
// Typical getters and setters
}
Next I went to modify Asset and realized that there didn't appear to be an attribute for AssociationOverride. I found a little discussion on the topic on github but couldn't find any resolution. Question Can inheritance be used with PHP 8 attributes where the property is defined in the parent class and the attribute is applied in the child class? Googling php 8 attributes inheritance didn't provide anything and thus I expect the answer is no but thought I'd ask. Thanks
EDIT. Maybe Doctrine does have an attribute version: https://github.com/doctrine/orm/blob/2.9.x/lib/Doctrine/ORM/Mapping/AttributeOverride.php EDIT2. Actually don't think so Edited July 30 by NotionCommotionHello, I have two classes: Code: [Select] abstract class Serializable { public function serialize() { foreach($this as $member => $value) { $publicObject->$member = $value; } return $publicObject } } class ToSerialize extends Serializable { public function otherSerialize() { foreach($this as $member => $value) { $publicObject->$member = $value; } return $publicObject } } $foo = new ToSerialize(); $foo->serialize(); //This will return one thing $foo->otherSerialize(); //This will return something different Why does this happen? Hey again, I hope you guys don't get annoyed with my noob questions. I was reading the guide here on the site about OOP, and on the section related to inheritance it makes a "Dog" class, after giving it an attribute and a method it then creates the "Animal" class using "extends" and expands on the methods. Then after that here is the paragraph I'm looking at now. "Class Animal is unaware of the fact that it is being extended; there are no references to Dog whatsoever. Say Animal extended another class called LifeForm, and I instantiated Animal, only methods and properties of Animal and LifeForm would be included in the object." To me, this sounds like if I were to create this "LifeForm" class by further extending the "Animal" class, I would not be able to access any of the attributes and methods that were in "Dog," only the ones that were in Animal and any that I put in LifeForm itself. But, I was playing with the code and I can call an attribute from Dog in LifeForm. So, am I reading the post wrong or am I coding wrong? Code: (php) [Select] <?php //Class Dog// class Dog{ public $hungry = 'Hell yeah!'; public $test = 'Affirmative!'; function eat($food){ $this->hungry = 'not so much.'; } } //Class Animal// class Animal extends Dog{ function eat($food){ if($food === 'cookie'){ $this->hungry = 'not so much'; }else{ echo 'Barf! I only like cookies!'; } } } //Class LifeForm// class LifeForm extends Animal{ function eat($food){ } } //Program Variables// $dog = new Dog; $LifeForm = new LifeForm; //Program Code// echo $LifeForm->test; ?> My assumption was that I am able to call that attribute because of the 'public' in front of it, but all the attributes in the examples are also public. Thanks guys! Hello, I'm attempting to build a Model View Controller and I've run into some issues with inheriting objects / extending classes. The application is focused around a "SuperObject", which contain instantiated libraries, helpers, controllers, models and views. I current have a Base class, which is effectively the "SuperObject". Previously I called the function GetInstance() within my model to get an instance of the SuperObject and assign it to a variable. So, $this->Instance->(The Object)->(The Method)(); However, I want to remove the need for that variable $this->Instance and just have $this->(The Object)->(TheMethod)(); And so, If you see my Controller class, libraries are instantiated as $this->Object which works perfectly. If from, within my controller I was to load the Model class. For example, $this->Loader->Library('Model'); when that model becomes instantiated, even though an extension of the Base class, I cannot use the libraries I instantiated in my controller. And of course there is a Fatal Error: Fatal error: Call to a member function UserAgent() on a non-object Code: [Select] <?php class Base { private static $Instance; public function Base() { self::$Instance =& $this; } public static function &GetInstance() { return self::$Instance; } } function &GetInstance() { return Base::GetInstance(); } Code: [Select] <?php class Controller extends Base { function Controller() { parent::Base(); $this->Initialize(); } function Initialize() { $Array = array( 'Uri', 'Loader', 'Router', 'Database', ); foreach($Array as $Object) { $this->$Object = loadClass($Object); } } } Code: [Select] <?php class Model extends Base { function Model() { parent::Base(); echo $this->Input->UserAgent(); } } Code: [Select] <?php class Home extends Controller { function Home() { parent::Controller(); } function index() { $this->Loader->Library('Session'); $this->Loader->Library('Model'); $Data = array( 'Controller' => $this->Router->FetchClass(), 'Title' => ucfirst($this->Router->FetchClass()) ); $this->Loader->View('meta',$Data); $this->Loader->View('header',$Data); $this->Loader->View('home'); $this->Loader->View('footer'); } } Any input would be appreciated! I am using API-Platform, Doctrine, and Symfony with entities that utilize class type inheritance to extend an abstract entity. I've been running into one issue after another primarily related to the serialization process (serialization groups, parent annotations not propagated to the child, etc), and while I am sure user error on my part is part of the culprit, it appears that API-Platform and potentially Symfony and Doctrine don't fully support entity inheritance. My reason for thinking so is the incredibly sparse amount of documentation on the subject and remarks on quite a few github issues posts and other blogs how it is "bad practice". For instance, say I have Mouse, Cat, and Dog which all extend AbstractAnimal, and each has a bunch of common properties such as birthday, weight, etc, and methods such as eats(), sleeps(), etc. Sorry in advance for using hypothetical entities but I don't think doing so distracts. I like how inheritance allows me to keep all common properties in a single table, but can let that go. More importantly, the subset mouse, cat, and dog table shares an ID from the animal table allowing me to associate all animals to some other table (i.e. many-to-one to person whether they are their pet or many-to-many to country whether they are native to a country), and to retrieve a list of animals and filter by some property or type as needed without a bunch of unions. To me, this sounds like inheritance, but if the products I am using don't support it very well, it doesn't matter. First question. Is entity inheritance considered bad practice? And even if not, is it common for frameworks to limit their level of support for them? If so, what can I do about it? Maybe favor composition over inheritance? Okay, great, I now have a single animal table which makes all my SQL concerns issues go away and I am pretty confident that my serialization issues will also go away. All I need to do is inject each animal with some "thing" to make them a mouse, cat, or dog. But what do I call this thing? I've struggled with this topic for a while and asked the same question regarding how to deal with BarCharts, PieCharts, GaugeCharts, LineCharts, etc all being charts but all acting slightly differently, and never really came to any conclusion. For a non-hypothetical scenario, I have BacnetGateway and ModbusGateway which extend AbstractGateway. Okay, this one is easy and I change to just having a Gateway and inject either BacnetProtocol or ModbusProtocol. For another non-hypothetical scenario, I have PhysicalPoint which represents some real environmental parameter, VirtualPoint which represents combining one or more PhysicalPoints or VirtualPoints, and TransformedPoint (feel free to provide a better name) which represents performing some time function such as integrating over a given time. Currently, they all extend AbstractPoint, but if I was trying to do so with composition, I could inject PointType but don't think doing so makes sense. For my hypothetical scenario, do I make a DNA interface and inject an Animal with DogDNA to get a dog? I really need to get my head around this once and for all. Thanks I wish to create and store in a DB three objects which are created using injection; $myAObject=new BaseEntity(new InjectedThingA()); $myBObject=new BaseEntity(new InjectedThingB()); $myCObject=new BaseEntity(new InjectedThingC()); BaseEntity is defined by SQL table base_entity and my three injected objects InjectedThingA, InjectedThingB, and InjectedThingC are each defined by SQL tables injected_thing_a, injected_thing_b, injected_thing_c, respectively. Each of these injected tables has autoincrement column id plus whatever other columns, and base_entity includes a column injected_thing_id. But this won't work since this ID is not unique across InjectedThings and also poor since there is no foreign key, so instead I do the following. InjectedThingA extends AbstractInjectedThing InjectedThingB extends AbstractInjectedThing InjectedThingC extends AbstractInjectedThing Then I add an autoincrement id column to AbstractedInjectedThing and place a one-to-one constraint from column id in InjectedThingA, InjectedThingB, and InjectedThingC to column id in AbstractedInjectedThing. So, I still need to use inheritance, right? I don't think that this type of inheritance brings the baggage which MyInheritedEntity extends BaseEntity does and I am okay with it, but just want to make sure I am doing this right. Thanks Edited October 4, 2019 by NotionCommotionFor solely to reduce duplicated code and when injection isn't applicable, should one use inheritance or traits?
<?php
abstract class BaseClass
{
private $id, $name;
public function __construct(int $id, string $name) {
$this->id=$id;
$this->name=$name;
}
public function getId():int
{
return $this->id;
}
public function getName():string
{
return $this->name;
}
}
<?php
class A extends BaseClass{}
class B extends BaseClass{}
class C extends BaseClass
{
private $foo;
public function __construct(int $id, string $name, Foo $foo) {
parent::__construct($id, $name);
$this->foo=$foo;
}
public function getFoo():Foo {
return $this->foo;
}
}
<?php
trait MyTrait
{
private $id, $name;
public function __construct(int $id, string $name) {
$this->id=$id;
$this->name=$name;
}
public function getId():int
{
return $this->id;
}
public function getName():string
{
return $this->name;
}
}
<?php
class A
{
use MyTrait;
}
class B
{
use MyTrait;
}
class C
{
use MyTrait;
private $foo;
public function __construct(int $id, string $name, Foo $foo) {
$this->id=$id;
$this->name=$name;
$this->foo=$foo;
}
public function getFoo():Foo {
return $this->foo;
}
}
Edited January 2, 2020 by NotionCommotion |
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