An index with name 'primary' was already defined on table 'sites' - php

Question

I am using Doctrine 2 with ZF2.
I have a sites entity with the following primary key field.
/**
* #var string
* #ORM\Column(name="site_id", type="string", length=10, nullable=false)
* #ORM\Id
*/
private $siteId;
And the following index's
* #ORM\Table(name="sites", indexes={
* #ORM\Index(name="PRIMARY", columns={"site_id"}),
* #ORM\Index(name="country_id", columns={"country_id"}),
* #ORM\Index(name="timezone_id", columns={"timezone_id"}),
* #ORM\Index(name="vat_rate_id", columns={"vat_rate_id"}),
* #ORM\Index(name="site_mode_id", columns={"site_mode_id"}),
* #ORM\Index(name="created_by_user_id", columns={"created_by_user_id"}),
* })
When I run php ./vendor/doctrine/doctrine-module/bin/doctrine-module orm:validate-schema from the command line I get the following error message.
[Doctrine\DBAL\Schema\SchemaException]
An index with name 'primary' was already defined on table 'sites'.
However it also reports The mapping files are correct.
Does anyone know why this error is being generated?
Many thanks in advance.
EDIT
Full entity as requested
/**
* Sites Entity
*
* #author Garry Childs
*
* #ORM\Table(name="sites", indexes={
* #ORM\Index(name="country_id", columns={"country_id"}),
* #ORM\Index(name="timezone_id", columns={"timezone_id"}),
* #ORM\Index(name="vat_rate_id", columns={"vat_rate_id"}),
* #ORM\Index(name="site_mode_id", columns={"site_mode_id"}),
* #ORM\Index(name="created_by_user_id", columns={"created_by_user_id"}),
* })
* #ORM\Entity(repositoryClass="Application\Entity\Repository\SitesRepository")
* #ORM\HasLifecycleCallbacks
*/
class Sites extends AbstractEntity
{
/**
* #var string
* #ORM\Column(name="site_id", type="string", length=10, nullable=false)
* #ORM\Id
*/
private $siteId;
/**
* #var string
*
* #ORM\Column(name="domain_name", type="string", length=255, nullable=false)
*/
private $domainName;
/**
* #var string
*
* #ORM\Column(name="title", type="string", length=30, nullable=false)
*/
private $title;
/**
* #var string
*
* #ORM\Column(name="email_address", type="string", length=254, nullable=false)
*/
private $emailAddress;
/**
* #var string
*
* #ORM\Column(name="layout", type="string", length=30, nullable=true)
*/
private $layout;
/**
* #var string
*
* #ORM\Column(name="homepage", type="string", length=30, nullable=true)
*/
private $homepage;
/**
* #var string
*
* #ORM\Column(name="bookmark_icon", type="string", length=20, nullable=false)
*/
private $bookmarkIcon = 'bookmark.png';
/**
* #var string
*
* #ORM\Column(name="address", type="string", length=200, nullable=false)
*/
private $address;
/**
* #var string
*
* #ORM\Column(name="town", type="string", length=30, nullable=false)
*/
private $town;
/**
* #var string
*
* #ORM\Column(name="county", type="string", length=30, nullable=false)
*/
private $county;
/**
* #var \Application\Entity\Countries
*
* #ORM\ManyToOne(targetEntity="Application\Entity\Countries")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="country_id", referencedColumnName="country_id")
* })
*/
private $country;
/**
* #var string
*
* #ORM\Column(name="post_code", type="string", length=7, nullable=false)
*/
private $postCode;
/**
* #var \Application\Entity\Timezones
*
* #ORM\ManyToOne(targetEntity="Application\Entity\Timezones")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="timezone_id", referencedColumnName="timezone_id")
* })
*/
private $timezone;
/**
* #var string
*
* #ORM\Column(name="locale", type="string", length=5, nullable=false)
*/
private $locale;
/**
* #var string
*
* #ORM\Column(name="currency_code", type="string", length=3, nullable=false)
*/
private $currencyCode;
/**
* #var string
*
* #ORM\Column(name="vat_number", type="string", length=10, nullable=true)
*/
private $vatNumber;
/**
* #var \Application\Entity\VatRates
*
* #ORM\ManyToOne(targetEntity="Application\Entity\VatRates", inversedBy="sites")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="vat_rate_id", referencedColumnName="vat_rate_id")
* })
*/
private $vatRate;
/**
* #var \DateTime
*
* #ORM\Column(name="date_created", type="datetime")
*/
private $dateCreated;
/**
* #var \DateTime
*
* #ORM\Column(name="date_modified", type="datetime")
*/
private $dateModified;
/**
* #var \Application\Entity\Users
*
* #ORM\ManyToOne(targetEntity="Application\Entity\Users")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="created_by_user_id", referencedColumnName="user_id")
* })
*/
private $createdBy;
/**
* #var Doctrine\ORM\PersistentCollection
*
* #ORM\OneToMany(targetEntity="Application\Entity\Categories", mappedBy="site")
*/
private $categories;
/**
* #var \Doctrine\ORM\PersistentCollection
*
* #ORM\OneToMany(targetEntity="Application\Entity\SiteCountries", cascade="persist", mappedBy="site")
*/
private $siteCountries;
/**
* #var \Doctrine\ORM\PersistentCollection
*
* #ORM\OneToMany(targetEntity="Application\Entity\SiteShippingMethods", cascade="persist", mappedBy="site")
*/
private $shippingMethods;
/**
* #var \Doctrine\ORM\PersistentCollection
*
* #ORM\OneToMany(targetEntity="Application\Entity\SitePaymentMethods", cascade="persist", mappedBy="site")
*/
private $sitePaymentMethods;
/**
* #var \Application\Entity\SiteModes
*
* #ORM\ManyToOne(targetEntity="Application\Entity\SiteModes")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="site_mode_id", referencedColumnName="site_mode_id")
* })
*/
private $siteMode;
/**
*
* #var integer
* #ORM\Column(name="payment_days", type="integer", nullable=false)
*/
private $paymentDays;
/**
*
* #var integer
* #ORM\Column(name="products_per_page", type="integer", nullable=false)
*/
private $productsPerPage;
/**
* #var \Doctrine\ORM\PersistentCollection
*
* #ORM\OneToMany(targetEntity="Application\Entity\Invoices", mappedBy="site")
* })
*/
private $invoices;
public function __construct()
{
$this->categories = new ArrayCollection();
$this->siteCountries = new ArrayCollection();
$this->shippingMethods = new ArrayCollection();
$this->vatRate = NULL;
$this->sitePaymentMethods = new ArrayCollection();
$this->invoices = new ArrayCollection();
$this->productsPerPage = 15;
}
.... Getters & Setters
/**
* #ORM\PrePersist
* #return \Application\Entity\Users
*/
public function prePersist()
{
$this->dateCreated = $this->getCurrentDateTime();
$this->dateModified = $this->getCurrentDateTime();
$this->currencyCode = $this->strToUpper($this->currencyCode);
$this->createdBy = $this->getAuthUser();
return $this;
}
/**
* #ORM\PreUpdate
* #return \Application\Entity\Users
*/
public function preUpdate()
{
$this->dateModified = $this->getCurrentDateTime();
$this->currencyCode = $this->strToUpper($this->currencyCode);
return $this;
}

Answer 1

You already marked the site_id column as your primary column when you added #ORM\Id annotation to the $siteId property. It is not necessary to add the following line:
#ORM\Index(name="PRIMARY", columns={"site_id"}),
Remove that line and you will see that the site_id column will be indexed properly as PRIMARY index automatically in your database.
Read more on this in chapter 4.5. Identifiers / Primary Keys in the doctrine documentation