doctrine | 易学教程

Doctrine ORM Conditional Association

阅读更多关于 Doctrine ORM Conditional Association

问题 i'm building a Q&A site and my questions, answers and comments are on the same posts table. But their postType is different. I can get answers for a question and comments for an answer with this association: /** * @OneToMany(targetEntity="Cms\Entity\Post", mappedBy="parent") */ private $answers; /** * @OneToMany(targetEntity="Cms\Entity\Post", mappedBy="parent") */ private $comments; But i think this is not the correct way to do this because if i fetch a question both answers and comments are

How can I connect via Symfony 4 to mySQL database created with MAMP?

阅读更多关于 How can I connect via Symfony 4 to mySQL database created with MAMP?

问题 I created a database in MAMP called "project". In my .env file I added this line: DATABASE_URL=mysql://root:root@localhost:3306/project Now I want to run php bin/console doctrine:database:create But I get an error message: SQLSTATE[HY000] [2002] No such file or directory my doctrine configurations: parameters: # Adds a fallback DATABASE_URL if the env var is not set. # This allows you to run cache:warmup even if your # environment variables are not available yet. # You should not need to

Symfony2 doctrine:generate:entities throw Syntax Error?

阅读更多关于 Symfony2 doctrine:generate:entities throw Syntax Error?

问题 when i am using the symfony2 shell and trying to run doctrine:generate:entities [MyBundle] --path='src' or doctrine:generate:entities [MyBundle] i got this error [Syntax Error] Expected Doctrine\Common\Annotations\DocLexer::T_CLOSE_CURLY_BRACES, got '@' at position 255 in property so please any solutions ?? thanks in advance 回答1: I've encountered this error also. It's just a simple typo in one of your Entity annotations. A quick check of your entities will reveal something like this: /** *

Detached entity error in Doctrine

阅读更多关于 Detached entity error in Doctrine

问题 I am posting an array of entities to a controller, all of which I'd like to delete. However, the below code throws an A detached entity was found during removed MyProject\Bundle\MyBundle\Entity\MyEntity@000000004249c13f00000001720a4b59 error. Where am I going wrong? $doctrineManager = $this->getDoctrine()->getManager(); foreach ($form->getData()->getEntities() as $entity) { $doctrineManager->merge($entity); $doctrineManager->remove($entity); } $doctrineManager->flush(); 回答1: You should use

doctrine queryBuilder

阅读更多关于 doctrine queryBuilder

为了能够方便的切换数据库，我们有必要使用doctrine的queryBuilder，但是估计很多人都是不喜欢的(我也是)，之前尝试用的时候，发现在doctrine定义的 SELECT 语法中并没有 CONCAT, GROUP_CONCAT 这些有时候会用到的函数，于是就放弃了，今天才发现原来我们还可以这么用。。。。需要特别注意的是我们在写字段名字的时候，例如 user_id ,这种就要写成 userId , 与doctrine 定义entity的语法是一致的。 $em = $this->getEntityManager(); $qb = $em->createQueryBuilder(); $qb->add('select', 'concat('ttt', u.id)') ->from(User::class, 'u') ->where($qb->expr()->eq('u.id','?1'))->setParameter(1,171); $res = $qb->getQuery()->getArrayResult(); var_dump($res);exit; $qb = $this->getEntityManager()->createQueryBuilder(); $qu = $qb->select('u') ->from(User::class, 'u') -

Doctrine 2 - How to use objects retrieved from cache in relationships

阅读更多关于 Doctrine 2 - How to use objects retrieved from cache in relationships

问题 I'm working in a project that use Doctrine 2 in Symfony 2 and I use MEMCACHE to store doctrine's results. I have a problem with objects that are retrieved from MEMCACHE. I found this post similar, but this approach not resolves my problem: Doctrine detaching, caching, and merging This is the scenario /** * This is in entity ContestRegistry * @var contest * * @ORM\ManyToOne(targetEntity="Contest", inversedBy="usersRegistered") * @ORM\JoinColumn(name="contest_id", referencedColumnName="id",

How I can get the current user into my entity classes?

阅读更多关于 How I can get the current user into my entity classes?

问题 I am developing my first Symfony 4 application and I migrating from Symfony 2+ and symfony 3+. Right now I am developing a back-end and all of my entity classes have a addedBy() and updatedBy() methods where I need to record the current logged in administrator. I would like to have something like an event listener where I do not have to set those methods in all of my controllers. How to accomplish this? 回答1: First, to simplify matters and help down the road I would create an interface this

How I can get the current user into my entity classes?

阅读更多关于 How I can get the current user into my entity classes?

Integrate Doctrine with Zend Framework 1.8 app

阅读更多关于 Integrate Doctrine with Zend Framework 1.8 app

问题 I'm interested in using Doctrine as an ORM for a new Zend Framework app I'm writing. I'm trying to figure out the best way to integrate it as straightforward as possible. Every example I find is different, and a lot of them pre-date the new autoloading features in ZF 1.8. None of them have worked for me yet. Does anyone have a good way to do this? I'm inclined to want to place it in my bootstrap file, but some people suggest making a Zend_Application_Resource plugin. The hard part seems to be

Why does column alias not work in doctrine?

阅读更多关于 Why does column alias not work in doctrine?

问题 My script is like this: $query = Doctrine_Query::create () ->select('count(p.product_id) as num_a') ->from ( 'ProductComments p' ) ->groupBy('p.product_id') ->having('num_a =2 '); And the generated sql is: SELECT COUNT(i.product_id) AS i__0 FROM productcomments i GROUP BY i.product_id HAVING num_a=2 Thus I get an error when execute the sql. I have two questions: why is the alias of the table 'i' instead of 'p' ? why is the 'num_a' in having clause not replaced with 'i__0' ,how to fixed it?