FieldConfig🔗
The data model used in Grafana, namely the data frame, is a columnar-oriented table structure that unifies both time series and table query results.
Each column within this structure is called a field. A field can represent a single time series or table column.
Field options allow you to change how the data is displayed in your visualizations.
Definition🔗
class FieldConfig implements \JsonSerializable
{
/**
* The display value for this field. This supports template variables blank is auto
*/
public ?string $displayName;
/**
* This can be used by data sources that return and explicit naming structure for values and labels
* When this property is configured, this value is used rather than the default naming strategy.
*/
public ?string $displayNameFromDS;
/**
* Human readable field metadata
*/
public ?string $description;
/**
* An explicit path to the field in the datasource. When the frame meta includes a path,
* This will default to `${frame.meta.path}/${field.name}
*
* When defined, this value can be used as an identifier within the datasource scope, and
* may be used to update the results
*/
public ?string $path;
/**
* True if data source can write a value to the path. Auth/authz are supported separately
*/
public ?bool $writeable;
/**
* True if data source field supports ad-hoc filters
*/
public ?bool $filterable;
/**
* Unit a field should use. The unit you select is applied to all fields except time.
* You can use the units ID availables in Grafana or a custom unit.
* Available units in Grafana: https://github.com/grafana/grafana/blob/main/packages/grafana-data/src/valueFormats/categories.ts
* As custom unit, you can use the following formats:
* `suffix:<suffix>` for custom unit that should go after value.
* `prefix:<prefix>` for custom unit that should go before value.
* `time:<format>` For custom date time formats type for example `time:YYYY-MM-DD`.
* `si:<base scale><unit characters>` for custom SI units. For example: `si: mF`. This one is a bit more advanced as you can specify both a unit and the source data scale. So if your source data is represented as milli (thousands of) something prefix the unit with that SI scale character.
* `count:<unit>` for a custom count unit.
* `currency:<unit>` for custom a currency unit.
*/
public ?string $unit;
/**
* Specify the number of decimals Grafana includes in the rendered value.
* If you leave this field blank, Grafana automatically truncates the number of decimals based on the value.
* For example 1.1234 will display as 1.12 and 100.456 will display as 100.
* To display all decimals, set the unit to `String`.
*/
public ?float $decimals;
/**
* The minimum value used in percentage threshold calculations. Leave blank for auto calculation based on all series and fields.
*/
public ?float $min;
/**
* The maximum value used in percentage threshold calculations. Leave blank for auto calculation based on all series and fields.
*/
public ?float $max;
/**
* Convert input values into a display string
* @var array<\Grafana\Foundation\Dashboard\ValueMap|\Grafana\Foundation\Dashboard\RangeMap|\Grafana\Foundation\Dashboard\RegexMap|\Grafana\Foundation\Dashboard\SpecialValueMap>|null
*/
public ?array $mappings;
/**
* Map numeric values to states
*/
public ?\Grafana\Foundation\Dashboard\ThresholdsConfig $thresholds;
/**
* Panel color configuration
*/
public ?\Grafana\Foundation\Dashboard\FieldColor $color;
/**
* The behavior when clicking on a result
* @var array<mixed>|null
*/
public ?array $links;
/**
* Alternative to empty string
*/
public ?string $noValue;
/**
* custom is specified by the FieldConfig field
* in panel plugin schemas.
* @var mixed|null
*/
public $custom;
}
Methods🔗
fromArray🔗
Builds this object from an array.
This function is meant to be used with the return value of json_decode($json, true).
jsonSerialize🔗
Returns the data representing this object, preparing it for JSON serialization with json_encode().