Doctrine 2 - ORM
  1. Doctrine 2 - ORM
  2. DDC-2260

Partial DQL query doesn't respect given order of columns

    Details

    • Type: Improvement Improvement
    • Status: Open
    • Priority: Minor Minor
    • Resolution: Unresolved
    • Affects Version/s: 2.3.2
    • Fix Version/s: None
    • Component/s: DQL
    • Security Level: All
    • Labels:
      None

      Description

      When executing partial DQL queries it may be important to keep given order of columns e.g. for "pairs" hydrator when first column of a pair is used as a key and second - as value. For example query like this:

      select partial u.{id,name} from my:User u

      will expect "id" to be first in resulted set and "name" to be second and not vice versa.

      However Doctrine parses this part of statement via iterating over fields mapping from entity's class metadata (as can be seen in Doctrine\ORM\Query\SqlWalker::walkSelectExpression()):

      foreach ($class->fieldMappings as $fieldName => $mapping) {
        if ($partialFieldSet && ! in_array($fieldName, $partialFieldSet)) {
          continue;
        }
        ...
      

      and hence given columns order preserving is not guaranteed.

        Activity

          People

          • Assignee:
            Benjamin Eberlei
            Reporter:
            Alexander Grimalovsky
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            Dates

            • Created:
              Updated: