Symfony Doctrine ORM - Column name does not exist when running migration

Question

I am working on the Doctrine ORM (2.4.8, I know, it's old I cannot do anything about it right now) part of the code (Symfony 3 again, I'm aware it's old). I need many-to-many relation here because multiple Countries might be listed in multiple LineItems. The primary key of the Country table is iso3 and I would not like to modify it.

Here is the field that should contain the countries:

class LineItem
{
...
/**
     * @ORM\ManyToMany(targetEntity="CampaignBundle\...\Country", inversedBy="iso3")
     * @ORM\JoinTable(
     * name="lineitem_country_filter",
     *  joinColumns={
     *      @ORM\JoinColumn(name="country_id", referencedColumnName="iso3")
     *  },
     *  inverseJoinColumns={
     *      @ORM\JoinColumn(name="lineitem_id", referencedColumnName="id")
     *  }
     * )
     */
    private $countryFilter;
...}

Here is a part of the Country class:

class Country
{...
     /**
     * @ORM\Column(name="iso3", type="string", length=10, unique=true)
     * @ORM\Id()
     * @ORM\ManyToMany(targetEntity="LineItem", mappedBy="countryFilter")
     * @ORM\OneToMany(targetEntity="Region", mappedBy="country")
     * @ORM\GeneratedValue(strategy="NONE")
     */
    private $iso3;
...}

When I try to run symfony console d:m:diff I get this issue:

In SchemaTool.php line 648:
Column name 'iso3' referenced for relation from CampaignBundle\...\LineItem towards CampaignBundle\...\Country does not exist.

I have no idea how to solve it. Just for a small clarification, I'm a junior dev in a small company ;)

Answer 1

Thanks to – Nuryagdy Mustapayev, it works now. I've changed the LineItem code as follows:

     * @ORM\ManyToMany(targetEntity="CampaignBundle\...\Country")
     * @ORM\JoinTable(name="lineitem_country_filter",
     *      joinColumns={@ORM\JoinColumn(name="lineitem_id", referencedColumnName="id")},
     *      inverseJoinColumns={@ORM\JoinColumn(name="country_id", referencedColumnName="iso3")})

Removed the @ORM\ManyToMany from Country part, because as Nuryagdy mentioned it's unidirectional relation.

The CountryNA was my mistake, I forget to remove 'NA' so it's more readable, now it's fixed.