Clash Royale CLAN TAG#URR8PPP

Symfony 3.4 - Doctrine ManyToMany association error

I'm working on a simple Symfony API and I'm having trouble setting a relation between two entities.
I have this two classes: Recipe and Ingredient.
A Recipe can have many ingredients and an ingredient can be present in many recipes so I used a ManyToMany association.

This is my Recipe class:

namespace RecipesBundleEntity;

use DoctrineORMMapping as ORM;
use DoctrineCommonCollectionsArrayCollection;

/**
* Recipe
*
* @ORMTable(name="recipe")
* @ORMEntity(repositoryClass="RecipesBundleRepositoryRecipeRepository")
*/
class Recipe

/**
* @var int
*
* @ORMColumn(name="id", type="integer")
* @ORMId
* @ORMGeneratedValue(strategy="AUTO")
*/
private $id;

/**
* @var string
*
* @ORMColumn(name="name", type="string", length=255)
*/
private $name;

/**
* @var string
*
* @ORMColumn(name="description", type="string", length=255, nullable=true)
*/
private $description;

/**
* @var string
*
* @ORMColumn(name="image", type="string", length=255, nullable=true)
*/
private $image;

/**
* @ORMManyToMany(targetEntity="Ingredient", inversedBy="recipes")
* @ORMJoinTable(name="recipes_ingredients")
*/
private $ingredients;

public function __construct()
$this->ingredients = new ArrayCollection();


/**
* Get id
*
* @return int
*/
public function getId()

return $this->id;


/**
* Set name
*
* @param string $name
*
* @return Recipe
*/
public function setName($name)

$this->name = $name;

return $this;


/**
* Get name
*
* @return string
*/
public function getName()

return $this->name;


/**
* Set description
*
* @param string $description
*
* @return Recipe
*/
public function setDescription($description)

$this->description = $description;

return $this;


/**
* Get description
*
* @return string
*/
public function getDescription()

return $this->description;


/**
* Set image
*
* @param string $image
*
* @return Recipe
*/
public function setImage($image)

$this->image = $image;

return $this;


/**
* Get image
*
* @return string
*/
public function getImage()

return $this->image;


/**
* Set ingredients
*
* @param array $ingredients
* @return Recipe
*/
public function setIngredients($ingredients)

foreach($ingredients as $ingredient)
$this->ingredients->add($ingredient);


return $this;


/**
* Get ingredients
*
* @return ArrayCollection
*/
public function getIngredients()
return $this->ingredients;



This is my Ingredient class:

namespace RecipesBundleEntity;

use DoctrineORMMapping as ORM;
use DoctrineCommonCollectionsArrayCollection;

/**
* Ingredient
*
* @ORMTable(name="ingredient")
*
@ORMEntity(repositoryClass="RecipesBundleRepositoryIngredientRepository")
*/
class Ingredient

/**
* @var int
*
* @ORMColumn(name="id", type="integer")
* @ORMId
* @ORMGeneratedValue(strategy="AUTO")
*/
private $id;

/**
* @var string
*
* @ORMColumn(name="name", type="string", length=255)
*/
private $name;

/**
* @var int
*
* @ORMColumn(name="amount", type="integer")
*/
private $amount;

/**
* @ORMManyToMany(targetEntity="Recipe", mappedBy="ingredients")
*/
private $recipes;

public __construct()
$this->recipes = new ArrayCollection();


/**
* Get id
*
* @return int
*/
public function getId()

return $this->id;


/**
* Set name
*
* @param string $name
*
* @return Ingredient
*/
public function setName($name)

$this->name = $name;

return $this;


/**
* Get name
*
* @return string
*/
public function getName()

return $this->name;


/**
* Set amount
*
* @param integer $amount
*
* @return Ingredient
*/
public function setAmount($amount)

$this->amount = $amount;

return $this;


/**
* Get amount
*
* @return int
*/
public function getAmount()

return $this->amount;



And this is my controller:

class RecipeController extends Controller

/**
* @Route("/recipes")
*/
public function recipesAction(Request $request)

switch($request->getMethod())
case 'GET':

$recipes = $this->getDoctrine()->getRepository(Recipe::class)->findAll();
$return = $recipes;

break;
case 'POST':
$recipe = new Recipe();
$recipeData = json_decode($request->getContent(), true);

$recipe->setName($recipeData['name']);
$recipe->setDescription($recipeData['description']);
$recipe->setImage($recipeData['imagePath']);

$ingredients = $recipeData['ingredients'];

//var_dump($ingredients);die;

$recipe->setIngredients($ingredients);

//var_dump($recipe);die;

$em = $this->getDoctrine()->getManager();
$em->persist($recipe);
$em->flush();

$return = 'Recipe saved successfully';

break;
case 'PUT':

$recipes = json_decode($request->getContent(), true);

$em = $this->getDoctrine()->getManager();
foreach($recipes as $updating_recipe)

$recipe = $this->getDoctrine()->getRepository(Recipe::class)->findOneBy(array('name' => $updating_recipe['name']));

if($recipe)

$recipe->setName($updating_recipe['name']);
$recipe->setDescription($updating_recipe['description']);
$recipe->setImage($updating_recipe['image']);
$recipe->setIngredients($updating_recipe['ingredients']);

$em->flush();



$return = 'Recipes saved successfully';
break;
case 'DELETE':
break;

return new JsonResponse($return);



The problem occurs when I try to save a new recipe (post request).
I get the following error:

Expected value of type "DoctrineCommonCollectionsCollection|array" for association field "RecipesBundleEntityRecipe#$ingredients", got "array" instead.

I don't understand why I get this error if I use the setIngredients correctly to add the ingredients to the array collection.

Any ideas on what could be wrong?
Thanks in advance

EDIT 1:

I'm adding the dump of the ingredients as requested:

array (size=1)
0 =>
array (size=2)
'name' => string 'Spaghetti' (length=9)
'amount' => int 10


1 Answer
1

Ok the problem is solved.
As Sami indicated, I had to iterate through the ingredients that come
in the request and create an Ingredient object for each one.
Then add them to an ArrayCollection and set it using $recipe->setIngredients();

Thank you very much for your help.

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