(using Symfony 3.4)
I am trying to create an array collection by merging (getting only the objects) multiple collections. Sounds weird, let me explain.
I take all the users from the db and for each one I want to add in a single array collection all his/her licenses. My code:
$users = $this->userRepository->findAllUsers($params);
$users->forAll(function (User $user) use (&$array) {
$array = array_merge($array, $user->getLicenses());
});
$a = new ArrayCollection($array);
How should I resolve this?
You can merge collections like this (from How to merge two php Doctrine 2 ArrayCollection()):
$collection3 = new ArrayCollection(
array_merge($collection1->toArray(), $collection2->toArray())
);
So that can be applied to your case:
$users = $this->userRepository->findAllUsers($params);
$licensesArray = [];
foreach ($user in $users) {
$licensesArray = array_merge($licencesArray, $user->getLicenses()->toArray());
});
$licenses = new ArrayCollection($licensesArray);
This can result in having same license entity in the resulting collection several times. If that is not wanted, you can write some custom filtering to the array - or just create a repository getter for getting the licenses based on the user ids / user search params...
Related
I have a User table and a Library table, the relationship between them are many to many.
So I have a user_library table.
I manage to add data to the Library table from User but I cannot recover the data afterwards.
I add them like this:
$em = $this->getDoctrine()->getManager();
$repoUser = $em->getRepository('App:User');
$user = $repoUser->findOneBy(['token' => $token_user]);
$library = new Library();
$library->setIdBook($id_book);
$user->addLibrary($library);
$em->persist($library);
$em->persist($user);
$em->flush();
I thought that simply doing: $user->getLibrary()->getIdBook() would be enough but it is not the case.
How do you think I can get all the id_book that match the user?
The thing is that your getLibrary returns ArrayCollection, you need to specify which Library you exactly want
$libararies = $user->getLibrary() // <- this returns ArrayCollection
$library = $libraries->first() // <- return 1st element
Based on this code you can do a search for example, or just use doctrine to fetch library with desired ID, user, whatever you need straight from the database
EDIT
Lets say you want all libraries that are in relation with user with ID = 4
... // your code
$user = $this->getDoctrine()->getRepository('your user class')->find(4); // here we find your user from DB
$libraries = $user->getLibrary() // here we get all libraries which are in relation with user #4, you might want to rename the function as it returns ArrayCollection of Libraries, not Library
$bookIds = array();
foreach($libraries as $library) {
$bookIds[] = $library->getIdBook();
}
dump($bookIds); // all user #4 book ids
die;
I'm making a tool in which a user can view data from an entity, where they can choose what data and how they see the records.
I created a form with two date fields (start and end) and a list of fields that correspond to data counts and sums of the entity.
My question is:
How I can create a dynamically QueryBuilder that allows me to add fields based on what the user wants to see?
EDIT for Symfony2 dynamic queryBuilder
public function reportData($fields, $dateStart, $dateFinish)
{
$em = $this->getEntityManager()
->getRepository('AcmeBundle:Entity');
$query = $em->createQueryBuilder('e');
foreach($fields as $field)
{
switch($field)
{
case 'totalResults':
$query->setect('SUM(e.id) AS '.$field);
break;
}
}
$query->addWhere('e.dateStart >= :dateStart');
$query->addWhere('e.dateFinish <= :dateFinish');
...
Something like this ? You store all your select queries in an array, then pass the array to the query builder after testing each of your fields.
public function reportData($fields, $dateStart, $dateFinish)
{
$em = $this->getEntityManager()
->getRepository('AcmeBundle:Entity');
$query = $em->createQueryBuilder('e');
$select_array = array();
foreach($fields as $field)
{
switch($field)
{
case 'totalResults':
$select_array[] = 'SUM(e.id) AS '.$field;
break;
}
}
$query->select($select_array);
$query->addWhere('e.dateStart >= :dateStart');
$query->addWhere('e.dateFinish <= :dateFinish');
....
Basically, you want to keep on adding the
Select Fields
based upon the conditions.
So, the solution is simple.
You can use,
$queryBuilder->addSelect();
See Doctrine Query Builder Documentation
I would do a regular full query then filter it into a not doctrine object (dao/dto) then display it.
This way you can do the complex and optimized query first, then filter the result on whatever you want, even if it's not related to the query itself
Is there an easy way of comparing two entities and getting the names of the fields which do not match without using an if statement for each of the them?
$foo = new Foo();
$bar = new Bar();
$array_diff = array_keys(
array_diff_key(
get_object_vars($foo),
get_object_vars($bar)
));
$array_diff will be an array that contains every property that is into an entity but not into the other - or vice-versa
I'm from my smartphone so I didn't tested it
I need to create a new set of DB records by using same data that already exists. See image below:
Using this as example I need to create the same set of records but just changing the column company, less take UPC = I5TYF1UPORMYUY4JT21Z, using this info I should be able to generate two rows by just changing the company to 52 (any number). What I think is to get those records using this:
$entityStockDetailHasProductDetail = $this->getDoctrine()->getManager()->getRepository('ProductBundle:StockDetailHasProductDetail')->findBy(array(
"product" => $request->request->get('product')['id'],
"upc" => $request->request->get('product')['upc'],
));
Which returns the right records but I don't know how to continue from that point. My entity has all this methods:
$entityStockDetailHasProductDetail->setProductDetail();
$entityStockDetailHasProductDetail->setUpc();
$entityStockDetailHasProductDetail->setProduct();
$entityStockDetailHasProductDetail->setCompany();
$entityStockDetailHasProductDetail->setCondition();
$entityStockDetailHasProductDetail->setContent();
Any ideas?
Just loop over the collection, clone your entities, set the new company and persist.
$em = $this->getDoctrine()->getEntityManager('default');
$collection = $em->getRepository('YourBundle:Entity')->findBy(array('...'));
foreach ($collection as $entity) {
$newEntity = clone $entity;
$newEntity
->setId(null)
->setCompany($company)
;
$em->persist($newEntity);
}
$em->flush();
if i have two product collections is there a way to merge them into one?
for example (my final intent isn't to actually just get a collection of 2 cats, this is just to illustrate the issue):
$collection1 = Mage::getModel('catalog/category')->load(148)->getProductCollection();
$collection2 = Mage::getModel('catalog/category')->load(149)->getProductCollection();
$merged_collection = merge_collections($collection1,$collection2);
any help would be appreciated!
Assuming the items you wish to group together are of the same type and exist in the database then you can do this:
$collection1 = Mage::getModel('catalog/category')->load(148)->getProductCollection();
$collection2 = Mage::getModel('catalog/category')->load(149)->getProductCollection();
$merged_ids = array_merge($collection1->getAllIds(), $collection2->getAllIds());
// can sometimes use "getLoadedIds()" as well
$merged_collection = Mage::getResourceModel('catalog/product_collection')
->addFieldToFilter('entity_id', array('in' => $merged_ids))
->addAttributeToSelect('*');
Here I know to filter by entity_id because that is products' key field, like it is for most entity types, some flat tables have a different primary key. Often you can generalise that with one of the collection's getIdFieldName() method. Products are a bad example in this case because it's ID field name isn't filled out correctly.
Almost every (or every?) collection in Magento inherits from a Varien Data Collection. A collection is a special object that holds objects of another type. There's no method for merging collections, but you can add additional items of the appropriate type to the collection.
Code like this should get you where you want to go, although there's probably more efficient ways to loop and do the actual merging.
$collection1 = Mage::getModel('catalog/category')->load(148)->getProductCollection();
$collection2 = Mage::getModel('catalog/category')->load(149)->getProductCollection();
//load an empty collection (filter-less collections will auto-lazy-load everything)
$merged = Mage::getModel('catalog/product')->getCollection()->addFieldToFilter('entity_id',-1);
//add items from the first collection
foreach($collection1 as $item)
{
$merged->addItem($item);
}
//add items from the second collection
foreach($collection2 as $item)
{
//magento won't let you add two of the same thing to a collection
//so make sure the item doesn't already exist
if(!$merged->getItemById($item->getId()))
{
$merged->addItem($item);
}
}
//lets make sure we got something
foreach($merged as $product)
{
var_dump($product->getName());
}
I don't think there is such a method, but you can probably do something like that :
foreach ($collection1 as $item){
$collection2->addElem($item);
}
you can filter your collection directly without using 2.
$products = Mage::getModel('catalog/product');
$_collection = $products->getCollection();
->addCategoryFilter(2)
->load();
or try using 'addItem' to add your results to a collection. See also in Magento wiki
for the collection of products of several categories, you can use the following code
$collection = Mage::getModel('catalog/product')->getCollection()
->addAttributeToSelect('name')
->addAttributeToSelect('sku');
$collection->getSelect()
->join(
'catalog_category_product',
'product_id=entity_id',
array('category_id')
)
->where('catalog_category_product.category_id IN (?)', $categories);