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POmust return a string value in zend2. How?
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copied!<p>I have a problem with a zend2 form. I made an entity which gets some data from the database and joins some tables...</p> <p>here is the entity:</p> <pre><code>class Campaigns { /** * @ORM\Id * @ORM\GeneratedValue(strategy="AUTO") * @ORM\Column(type="integer") */ protected $id; /** * * @ORM\Column(name="campaign_name", type="string") * */ protected $campaigns; /** * @var mixed * * @ORM\ManyToMany(targetEntity="Application\Entity\Countries", cascade={"persist"}, orphanRemoval=false) * @ORM\JoinTable(name="campaigns_countries", * joinColumns={@ORM\JoinColumn(name="campaign_id", referencedColumnName="id", onDelete="CASCADE")}, * inverseJoinColumns={@ORM\JoinColumn(name="country_id", referencedColumnName="id", onDelete="CASCADE")} * ) */ protected $countries; </code></pre> <p>Below this code are the getters and setters, a construct function, an add and an remove function.</p> <p>Here they are:</p> <pre><code>public function getId() { return $this->id; } public function setId($id) { $this->id = $id; return $this; } public function getCampaigns() { return $this->campaigns; } public function setCampaigns($campaigns) { $this->campaigns = $campaigns; return $this; } public function addCampaigns($campaigns = null) { foreach ($campaigns as $c) { if (!$this->campaigns->contains($c)) { $this->campaigns->add($c); } } } public function removeCampaigns($campaigns) { foreach ($campaigns as $c) { if ($this->campaigns->contains($c)) { $this->campaigns->removeElement($c); } } } public function getCountries() { return $this->countries; } public function setCountries($countries) { $this->countries = $countries; return $this; } public function addCountries($countries = null) { foreach ($countries as $c) { if (!$this->countries->contains($c)) { $this->countries->add($c); } } } public function removeCountries($countries) { foreach ($countries as $c) { if ($this->countries->contains($c)) { $this->countries->removeElement($c); } } } //construct for countries public function __construct() { $this->setCountries(new ArrayCollection()); } </code></pre> <p>My problem is with the <code>protected $countries</code>. If i add in the form the property value, it gives me the "countries" property not found in entity.</p> <p>If I do not add it, and instead use <code>__toString()</code> function, it gives me an error saying that it could not convert countries to string...in the <code>__toString()</code> function I added the following code:</p> <pre><code>public function __toString() { return $this->countries; } </code></pre> <p>Thank you for all your help! </p> <p>AE</p>

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