how to limit the result grouped by the relationship Entity in Doctrine











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Based on my example I try to get the last 5 comments from a Comment Entity, but only one comment for each Post Entity which is related to the Comment Entity.



Before I asked, I researched, but what I found here didn't make anything clear and didn't work either.



This my current query:



$lastComments = $this->em->getRepository('App:Comment')

            ->createQueryBuilder('c')

            ->select('p', 'c')

            ->leftJoin('c.post', 'p', 'WITH','p.id = c.post')

            ->andWhere('c.approved = :approved')->setParameter('approved', true)

            ->groupBy('p.id')

            ->orderBy("c.createdAt","desc")

            ->setMaxResults(5)

            ->getQuery()

            ->getResult();


Grouping the Post entity directly with groupBy throws me this error:



Syntax error or access violation: 1055 Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'symadmin.c0_.id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by").





mysql doctrine







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    up vote
    0
    down vote

    favorite
    1












    Based on my example I try to get the last 5 comments from a Comment Entity, but only one comment for each Post Entity which is related to the Comment Entity.



    Before I asked, I researched, but what I found here didn't make anything clear and didn't work either.



    This my current query:



    $lastComments = $this->em->getRepository('App:Comment')
    
            ->createQueryBuilder('c')
    
            ->select('p', 'c')
    
            ->leftJoin('c.post', 'p', 'WITH','p.id = c.post')
    
            ->andWhere('c.approved = :approved')->setParameter('approved', true)
    
            ->groupBy('p.id')
    
            ->orderBy("c.createdAt","desc")
    
            ->setMaxResults(5)
    
            ->getQuery()
    
            ->getResult();


    Grouping the Post entity directly with groupBy throws me this error:



    Syntax error or access violation: 1055 Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'symadmin.c0_.id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by").





    mysql doctrine







    share|improve this question
























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      Based on my example I try to get the last 5 comments from a Comment Entity, but only one comment for each Post Entity which is related to the Comment Entity.



      Before I asked, I researched, but what I found here didn't make anything clear and didn't work either.



      This my current query:



      $lastComments = $this->em->getRepository('App:Comment')
      
            ->createQueryBuilder('c')
      
            ->select('p', 'c')
      
            ->leftJoin('c.post', 'p', 'WITH','p.id = c.post')
      
            ->andWhere('c.approved = :approved')->setParameter('approved', true)
      
            ->groupBy('p.id')
      
            ->orderBy("c.createdAt","desc")
      
            ->setMaxResults(5)
      
            ->getQuery()
      
            ->getResult();


      Grouping the Post entity directly with groupBy throws me this error:



      Syntax error or access violation: 1055 Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'symadmin.c0_.id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by").





      mysql doctrine







      share|improve this question













      Based on my example I try to get the last 5 comments from a Comment Entity, but only one comment for each Post Entity which is related to the Comment Entity.



      Before I asked, I researched, but what I found here didn't make anything clear and didn't work either.



      This my current query:



      $lastComments = $this->em->getRepository('App:Comment')
      
            ->createQueryBuilder('c')
      
            ->select('p', 'c')
      
            ->leftJoin('c.post', 'p', 'WITH','p.id = c.post')
      
            ->andWhere('c.approved = :approved')->setParameter('approved', true)
      
            ->groupBy('p.id')
      
            ->orderBy("c.createdAt","desc")
      
            ->setMaxResults(5)
      
            ->getQuery()
      
            ->getResult();


      Grouping the Post entity directly with groupBy throws me this error:



      Syntax error or access violation: 1055 Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'symadmin.c0_.id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by").





      mysql doctrine




      mysql doctrine






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      asked yesterday









      jcarlosweb

      191419




      191419





























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