I'm building a REST API with FOSRestBundle on my Symfony2 application.
What I want to do is to allow my POST and PUT actions, let say on a Product entity who got a #OneToMany relationship with another entity called Risk, to add/delete the children I past in JSON.
Let me give to you an example of JSON:
{
"cproduct": "ASSOC000000000999",
"risks": [
{
//first risk fields
},
{
//second risk fields
}
]
}
This is a simple JSON (the real one got more fields but these aren't needed here).
So here I've my Product ID (ASSOC000000000999) and I want to update this product by adding to him 2 new risks.
I know that normally I would have to create a Risk with the product ID separately, but for the needs of my application, I need to make only one request to the database. I want my users to be able to create a product, then add one or more risks and only then persist it into the database.
In a second time I would like them to be able to delete a child (risk) if he doesn't appear in the JSON sent with PUT action.
Here an example, let say that product “ASSOC000000000999” got a risk “RISK1”.
If I send this JSON:
{
"cproduct": "ASSOC000000000999",
"risks": [
{
“id”: “RISK2”,
//other fields
},
{ “id”: “RISK3”,
//other fields
}
]
}
On persist I want RISK1 to be deleted.
How can I do that? I found nothing on the web about that, please help me. :-)
PS: Sorry for my English, this isn't my birth langage.
EDIT:
I target what my problem really is.
When I send that JSON file with HTTP PUT verb:
{
"cfam": "AUTE",
"lpronom": "My Contract",
"riss": [{
"cris": "AS",
"lris": "Organization Law of 1901",
"lrisfic": "RCAD_FICHERCA9"
}]
}
Doctrine does a SELECT on RIS (my Risk table is called RIS, so the collection is $riss in my PROduct entity) where CRIS = "AS", and that's my problem. Here I want doctrine to create a RIS if the composite PK {cpro, nprover, cris} doesn't exist, and an update if it exist.
How can I do that?
(Without using Symfony form if possible).
Here my API call :
http://localhost/web/web/app_dev.php/fos/api/pros/ASSOC000000000009_1
My putProAction():
public function putProAction($id, Request $request)
{
$detachedEntity = $this->reqDeserialize($request, 'Namespace\Bundle\ProductBundle\Entity\Pro');
// Here I need to explode my serialized PUT parameter ID
list($cpro, $nprover) = explode('_', $id);
$detachedEntity->setCPRO($cpro);
$detachedEntity->setNPROVER($nprover);
$em = $this->getDoctrine()->getManager();
// I use merge to attache the entity to perform the persist
$entity = $em->merge($detachedEntity);
$em->persist($entity);
$em->flush();
return $entity;
}
You should use Symfony's Form Collections.
The example listed on that page is very similar to your requirements.
Related
given a user and his coupons, I want to get a user and all of his coupons:
foreach ($this->createQueryBuilder('x')->select('u, c')->where('x.email = ?0')->setParameter(0, $email)->leftJoin('u.coupons', 'c')->getQuery()->getResult() as $entity)
{
$entity->getCoupons();
}
this is very good until I forget to join the coupons:
foreach ($this->createQueryBuilder('x')->select('u')->where('x.email = ?0')->setParameter(0, $email)->getQuery()->getResult() as $entity)
{
$entity->getCoupons();
}
sadly this still works even though no coupons were joined. Here it does an other SELECT. In additional, this 2nd select will be wrong. Id rather want to get a exception or AT LEAST an empty array instead. Is there any workaround for this?
What you're experiencing is expected doctrine behavior.
When you select a User entity, Doctrine will get the record from the database. If you aren't explicitly joining the Coupon entity (or any other entities with relationship to User), Doctrine will create a Proxy object. Once you access this proxy object by calling $user->getCoupons(), Doctrine will fire a new query to the database to get the coupons for your User entity. This is called lazy-loading.
I'm not sure if there is a way to change this in the way you described.
What you can do is to create a method in your UserRepository called findUserAndCoupons($email) and have your query there. Whenever you need to find a user and his coupons, you could simply retrieve it in your controller using:
class MyController extends Controller {
public function myAction(){
$user = $this->getDoctrine()->getRepository('UserRepository')->findUserAndCoupons($email);
foreach($user->getCoupons() as $coupon) {
// ....
}
}
}
This way you won't need to remember the actual query and copy/paste it all over the place. :)
What I'm asking here is something weird. I'm using Symfony2 with Doctrine2. To bypass a issue between FOSRestBundle and JMSBundle (who don't like composite primary key) I need to know if it's possible - and how - to call a setter from the name of the field.
Here an example: imagine my Product entity have a primary key composed by 3 fields.
The trick is to send an array this kind of JSON into my API REST:
{
"id": {
"field1": "xxx",
"field2": "...",
"field3": "..."
},
// other fields
}
Then I use json_decode() to extract the ID field. I create a table of $key => $value with the 3 primary keys. And there is my problem, with this table I want, in a foreach loop, to do something like $myEntity->set$KEY($VALUE).
I'm doing this because I want to reuse this code with all my entities.
I know that this is something really weird, to sum up with only the name of the object field/property I want to call is appropriate setter().
Thanks ;-)
PS: sorry if my English isn't perfect, this isn't my birth langage.
You can use dynamic method name in PHP :
$myEntity->{'set'.$KEY}($VALUE);
or more readable version :
$method = 'set'.$KEY;
$myEntity->$method($VALUE);
Don't forget to check if method exists anyway :
$method = 'set'.$KEY;
if (!method_exists($myEntity, $method))
throw new \Exception('Something bad');
$myEntity->$method($VALUE);
I have two entities :
User that contains login data (with FOSUser),
and other informations about them (name, first name, date of birth, etc) in another entity called UserInfo.
In SonataAdmin, I want to manage my Users (done) but I need to add fields in the table that are in UserInfo (name, first name...).
Any idea ?
Thanks !
Depending on the relationship type, you should be able to just reference userinfo.firstName, eg:
public function configureShowFields(ShowMapper $show)
{
$show->add('userinfo.firstName')
->add('userinfo.dob');
}
Of course, if you have many userinfo's attached to the entity I don't think this will work.
There must be existing a relation in between user and userInfo. say OneToOne relation. Then from userInfo entity u will get the user data and will show on the Admin side.
i.e.
$subject = $this->getSubject();
$user = $this->subject->getUser();
Will give you user, if you want to further perform actions on that user.
I've got an issue with Doctrine being somehow nasty with automagical tracking of entities and changes. I've got a UserManager which gets data for a new user from a form and sends the data to the backend which creates the corresponding database entries. As the backend is only inserting some basic data like username, I want to persist everything else like a collection of user roles given through the form.
So my method should look like this:
public function create(User $user)
{
$this->createUserInBackend($user);
$this->em->merge($user);
$this->em->persist($user);
$this->em->flush();
}
My issue now is that Doctrine either drops the data from the given $user and replaces it with the database content. This way I lose the chosen user roles. Without the merge() Doctrine tries an INSERT which is clearly not what I want.
I tried everything coming to my mind from fetching a managed copy before the merge, cloning or whatever. In all cases the objects are linked so I lose the data from the form (although their spl_object_hash differ).
Some more simplified details as requested:
class User
{
// Username is tracked by backend
private $username;
// Fullname is only tracked by frontend/Doctrine
private $fullname;
}
Variant 1:
public function create(User $user)
{
// The user entity gets passed to the backend, which does some stuff
// and also inserts the entity in the database.
$this->createUserInBackend($user);
// The entitiy is in the database, but not managed by the EM.
// Therefore Doctrine does an INSERT.
$this->em->persist($user);
$this->em->flush();
}
Variant 2:
public function create(User $user)
{
// The user entity gets passed to the backend, which does some stuff
// and also inserts the entity in the database.
$this->createUserInBackend($user);
// Now there's an entity in the db with ID and username, but not the fullname
$user = $this->em->merge($user);
// The merge finds the entry in the database and refreshes its data.
// This leads to $user->fullname which was given in the form to be emptied. :(
$this->em->persist($user);
$this->em->flush();
}
I also tried to put the return value from merge into an $otherUser variable, but the objects are linked and fullname still gets dropped.
I'd just need something to tell Doctrine that the new entity is managed, but it should not touch its data. I've looked into the underlying UnitOfWork, but couldn't find a trick to solve this.
I want to create a form using some fields from multiple entities. I have all the distinct entites needed already created and i am not using form classes. I need to know how to do to render a form and handle its data so i can save them to the correct tables in my database.
Here is a part of my controller in charge of doing that
public function createPublicSpaceAction() {
//My entities
$Room = new Room();
$GuestList = new GuestList();
$Guest = new Guest();
//I need to know what to do from here
return $this -> render('AcmeUserBundle:Default:Forms/createPublicSpace.html.twig', array());
}
I kept trying to find a solution and i came up with the idea that one form needs one entity. So maybe the solution would be to merge those entities in one so i can build the form easily. I would then have to persist data to corresponding tables. But i can't think of how to merge entities.
I figured out a temporary solution. For those who want to know, I manually created an entity that looks like a merge of all the entity I need. This new entity has no link with Doctrine therefore it cannot create a table. Its goal is simply to allow me to build up a form and be able to manipulate data through that form. I then assign all data submitted to corresponding entities fields and persist them to the database.
Once again i know this is not the best solution. But for some reasons I won't tell, it is for me at this moment. I hope this can help some that are in the same situation than me and do not hesitate to post links that could help or better ways to do that.
It is highly recommended to use form classes http://symfony.com/doc/current/book/forms.html#creating-form-classes
They are designed to save time and make a lot of things just easier.
However to answer your question consider the following. Your action needs to handel a post request. So catch the request object with the post data:
use Symfony\Component\HttpFoundation\Request;
public function createPublicSpaceAction(Request $request)
Then get a form builder intance and create the form:
$builder = $this->createFormBuilder();
$builder->add('floor', 'text', array(
'label' => 'Room floor',
'data' => $room->getFloor()
));
add as much form fields as you need. There are several built-in field types: http://symfony.com/doc/current/book/forms.html#built-in-field-types
Create the form:
$form = $builder->getForm();
Pass the form to your template:
return $this -> render('AcmeUserBundle:Default:Forms/
createPublicSpace.html.twig', array(
'roomForm' = $form
));
To get posted data within your action:
if ('POST' == $request->getMethod()) {
$data = $request->request->get("form");
}
And in your template you can render the form by yourself or let twig do the job:
{{ form_widget(form.floor)}}
So this are the most importend things to mention. However you should go through http://symfony.com/doc/current/book/forms.html They actually tell you everything I wrote down.
Good luck ;)