Basic Value Resolvers

Most of the time, we use either PropertyValue or IdentifierValue to get the value from the source entity.

PropertyValue

PropertyValue is used to get the value of a property. Example:

use Doctrine\DBAL\Types\Types;
use Doctrine\ORM\Mapping as ORM;
use Rekalogika\Analytics\Core\Metadata as Analytics;
use Rekalogika\Analytics\Core\ValueResolver\PropertyValue;

#[ORM\Entity()]
#[Analytics\Summary(
    sourceClass: Order::class,
)]
class OrderSummary extends Summary
{
    #[ORM\Column(type: Types::STRING)]
    #[Analytics\Dimension(
        source: new PropertyValue('status'),
    )]
    private ?string $status = null;
}

IdentifierValue

IdentifierValue is used to get the identifier of an entity. It must be used if the value is not a simple property, but a related entity.

use Doctrine\DBAL\Types\Types;
use Doctrine\ORM\Mapping as ORM;
use Rekalogika\Analytics\Core\Metadata as Analytics;
use Rekalogika\Analytics\Core\ValueResolver\IdentifierValue;

#[ORM\Entity()]
#[Analytics\Summary(
    sourceClass: Order::class,
)]
class OrderSummary extends Summary
{
    #[ORM\ManyToOne()]
    #[Analytics\Dimension(
        source: new IdentifierValue('country'),
    )]
    private ?Country $country = null;
}

IntegerValue

IntegerValue is like PropertyValue, but implements PartitionValueResolver and returns an integer value. Usually, it is used in partitions where the source property key is an integer.

use Doctrine\DBAL\Types\Types;
use Doctrine\ORM\Mapping as ORM;
use Rekalogika\Analytics\Core\Metadata as Analytics;
use Rekalogika\Analytics\Core\Partition\DefaultIntegerPartition;

#[ORM\Entity()]
#[Analytics\Summary(
    sourceClass: Order::class,
)]
class OrderSummary extends Summary
{
    #[ORM\Embedded()]
    #[Analytics\Partition(new IntegerValue('id'))]
    private DefaultIntegerPartition $partition;
}