Symfony2 Entity ManyToMany Relation Data Structure - database

Question

I have the following setup:
Entity: 'Customers'
Entity: 'Accounts'
Those entities are in a #ManyToMany relation.
So I have the following database tables:
customers
accounts
customers_accounts
Now I need to save data for each customer for each account. Example:
There is one customer 'Tom'. Two accounts 'Ben' and 'Eric' are in charge of customer 'Tom'. Now I need to save whether or not account 'Ben' has already spoken to customer 'Tom'. Also I need to save the same status for account 'Eric'.
What's the best way to organise the database here? Best thing would be that there is an extra column in the table 'customers_accounts'. Is that possible? What other options are there?
Thanks for your help!
Just to show you how the entities are linked to each other:
/**
* #ORM\ManyToMany(targetEntity="AppBundle\Entity\Customer", inversedBy="accounts", cascade={"persist"})
* #ORM\JoinTable(name="customers_accounts")
**/
protected $customers;

Answer 1

In ManyToMany you can't add additional fields in your junction table i.e customers_accounts , to have an additional fields for your junction table you have to tweak your mappings as create a junction entity which will point your customer and accounts entity in ManyToOne way and your customer and accounts entities will point back to your junction entity in a OneToMany way
OneToMany OneToMany
-----------> <------------
Customer CustomerHasAccounts Accounts
<---------- ------------>
ManyToOne ManyToOne
Customer Entity
/**
* Customer
* #ORM\Table(name="customer")
* #ORM\Entity
*/
class Customer
{
/**
* #ORM\OneToMany(targetEntity="NameSpace\YourBundle\Entity\CustomerHasAccounts", mappedBy="customers",cascade={"persist","remove"} )
*/
protected $hasAccounts;
}
Accounts Entity
/**
* Accounts
* #ORM\Table(name="accounts")
* #ORM\Entity
*/
class Accounts
{
/**
* #ORM\OneToMany(targetEntity="NameSpace\YourBundle\Entity\CustomerHasAccounts", mappedBy="acccounts",cascade={"persist","remove"} )
*/
protected $hasCustomers;
}
CustomerHasAccounts Entity
/**
* CustomerHasAccounts
* #ORM\Table(name="customers_accounts")
* #ORM\Entity
*/
class CustomerHasAccounts
{
/**
* #ORM\ManyToOne(targetEntity="NameSpace\YourBundle\Entity\Accounts", cascade={"persist"}, fetch="LAZY")
* #ORM\JoinColumn(name="acccount_id", referencedColumnName="id")
*/
protected $acccounts;
/**
* #ORM\ManyToOne(targetEntity="NameSpace\YourBundle\Entity\Customer", cascade={"persist","remove"} , fetch="LAZY" )
* #ORM\JoinColumn(name="customers_id", referencedColumnName="id",nullable=true)
*/
protected $customers;
/**
*
* #ORM\Column(name="status", type="string")
*/
protected $status;
}

Answer 2

You have to transform your ManyToMany relation between your entities by a OneToMany-ManyToOne entity making the link between your 2 ManyToMany entities, this entity will have all the data related to this relation.
Customer
Class Customer
{
/**
* #ORM\OneToMany(targetEntity="AppBundle\Entity\CustomerAccount", mappedBy="societe", cascade={"Persist"})
*/
private $customerAccounts;
}
Account
Class Account
{
/**
* #ORM\OneToMany(targetEntity="AppBundle\Entity\CustomerAccount", mappedBy="account", cascade={"Persist"})
*/
private $customerAccounts;
}
CustomerAccount
Class CustomerAccount
{
/**
* #ORM\Id
* #ORM\ManyToOne(targetEntity="AppBundle\Entity\Customer", inversedBy="customerAccounts")
*/
private $societe;
/**
* #ORM\Id
* #ORM\ManyToOne(targetEntity="AppBundle\Entity\Account", inversedBy="customerAccounts")
*/
private $contact;
/**
* #var boolean
*
* #ORM\Column(name="alreadySpoken", type="boolean")
*/
private $alreadySpoken;
}