[mamamiapeguin]

Actually '.' notation works well when executing the query. The following filling record into row caused the data missing.
So I added the logic to handle '.' notation at APY\DataGridBundle\Grid\Source\Document::execute() line 205

foreach ($columns as $column) {
      $hierarchy = explode('.', $column->getId());
      $length = count($hierarchy);
      $node = $resource;
      for ($i = 0; $i < $length; $i++) {
            if (isset($node)) {
                 $node = $this->getClassProperties($node);
                 $node = $node[strtolower($hierarchy[$i])];
            }
      }
      $row->setField($column->getId(), $node);
}

In case of annotation field differs in uppercase/lowercase from actual class property , I had them unified in lowercase:

$result[strtolower($property->getName())] = $property->getValue($obj);

To access referenced document's property, the referenced document's id is a must whatever actual property is eventually retrieved.
At class annotation:

@GRID\Source(columns = "id, owner.id, owner.username")

At property 'owner' annotation:

@GRID\Column(field = "owner.id", visible = false)
@GRID\Column(field = "owner.username")

[tomcyr]

+1 This works for me but only for embed documents.
But for referenced I have error: Notice: Undefined index: $id

[mamamiapeguin]

@tomcyr , you have to add referenced document's id in the annotation to make it work. Example is at the end of my previous comment.

[tomcyr]

@mamamiapeguin I tried as You write, but now I have following error:
localhost:27017: Positional operator does not match the query specifier.
in vendor/doctrine/mongodb/lib/Doctrine/MongoDB/Cursor.php at line 483
my annotations:

/**
 * @GRID\Source(columns="id, name, description, file, threatGroup.id, threatGroup.name, created,  updated")
 */
class Threat
.
.
.
/**
     * @MongoDB\ReferenceOne(targetDocument="ThreatGroup")
     * @GRID\Column(field="threatGroup.id", visible=false)
     * @GRID\Column(field="threatGroup.name", title="Threat Group")
     */
    private $threatGroup;

[mamamiapeguin]

Sorry, @tomcyr . I cannot recur your error. However, I noticed that you didn't have @mongodb annotation for the class. Maybe this is the problem.

[tomcyr]

@mamamiapeguin I have @mongodb annotation for class (but I not copied here). However I'm preparing fix for referenced columns in Document, so when I'll finish (I must refactor some code) I share this code here so You'll be able to see where's the problem :)

[tomcyr]

@mamamiapeguin please look at this commit tomcyr@32ee860 This works for me for @mongodb\ReferenceOne mappings (without sorting).
And in Document notation must be:

/**
 * @MongoDB\Document
 * @GRID\Source(columns="id, referenceColumn, referenceColumn.name")
 */
class DocumentExample
.
.
.
/**
  * @MongoDB\ReferenceOne(targetDocument="referenceDocument")
  * @GRID\Column(field="referenceColumn", visible=false)
  * @GRID\Column(field="referenceColumn.name")
  */
    private $referenceColumn;

There isn't other way to find Documents in MongoDB by referenced columns in other Document.

[hmert]

@mamamiapeguin ping! could you test if this is working now. Tests are passed but I'd like to hear from you.

[hmert]

#32

[mamamiapeguin]

@hmert checked. It works well.

[hmert]

@mamamiapeguin Hey, it has a conflict right now.