php - Symfony related manytomany object query -


i'm trying query related objects , have problems.. of can me out.

so, have 2 manytomany related entity

user entity

/**  * @orm\manytomany(targetentity="contact", inversedby="users")  * @orm\jointable(name="users_contacts")  */ protected $contacts;

and contact entity

/** * @orm\manytomany(targetentity="user", mappedby="contacts") */ protected $users;

table: users_contacts following

user_id **** contact_id  1 ------------ 1 2 ------------ 1 3 ------------ 2 4 ------------ 2

i'm trying user_ids related queried contact_id

i have tried multiple different querybuilder

for example:

return $this->createquerybuilder('u') ->innerjoin('u.contacts', 'c', 'with', 'c.id = :$user_id') ->setparameter('user_id', $user_id);

but without result , have

$test = $this->getdoctrine()->getrepository('userbundle:user')->findall();

twig

{% user in test %}    {{ users.id }} {% endfor %}

which gets me contact_id, how user_ids related it? time!

you should able access related many many entity doing $user->getcontact() or inside twig template {{ user.contact }}. instead of writting getter alone can follow next steps:

  1. you should have 2 main tables , pivot table: user, contact , user_has_contact
  2. user_has_contact should content 2 rows: user_id , contact_id
  3. create fks in both tables

simple table

create table if not exists `mydb`.`user` (   `id` int not null auto_increment,   `name` varchar(45) null,   primary key (`id`)) engine = innodb;  create table if not exists `mydb`.`contact` (   `id` int not null auto_increment,   `name` varchar(45) null,   primary key (`id`)) engine = innodb;  create table if not exists `mydb`.`user_has_contact` (   `user_id` int not null,   `contact_id` int not null,   primary key (`user_id`, `contact_id`),   index `fk_user_has_contact_contact1_idx` (`contact_id` asc),   index `fk_user_has_contact_user_idx` (`user_id` asc),   constraint `fk_user_has_contact_user`     foreign key (`user_id`)     references `mydb`.`user` (`id`)     on delete no action     on update no action,   constraint `fk_user_has_contact_contact1`     foreign key (`contact_id`)     references `mydb`.`contact` (`id`)     on delete no action     on update no action) engine = innodb;
  1. map tables , generate entities. can using reverse engineering. see documentation
  2. you should have inside user.php getter (also setter) retrieving associated contacts.

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