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Fields: __field.name as field name and __field.displayName as displayName (#26531)

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* name vs displayName

* name vs displayName

* add __values

* add docs for displayName expressions

* Update docs/sources/panels/field-configuration-options.md

Co-authored-by: Diana Payton <52059945+oddlittlebird@users.noreply.github.com>

* Update docs/sources/panels/field-configuration-options.md

Co-authored-by: Diana Payton <52059945+oddlittlebird@users.noreply.github.com>

* Update docs/sources/panels/field-configuration-options.md

Co-authored-by: Diana Payton <52059945+oddlittlebird@users.noreply.github.com>

* Update docs/sources/panels/field-configuration-options.md

Co-authored-by: Diana Payton <52059945+oddlittlebird@users.noreply.github.com>

* Update docs/sources/panels/field-configuration-options.md

Co-authored-by: Diana Payton <52059945+oddlittlebird@users.noreply.github.com>

* Update docs/sources/panels/field-configuration-options.md

Co-authored-by: Diana Payton <52059945+oddlittlebird@users.noreply.github.com>

Co-authored-by: kyle <kyle@grafana.com>
Co-authored-by: Diana Payton <52059945+oddlittlebird@users.noreply.github.com>
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Ryan McKinley
2020-08-04 21:22:14 -07:00
committed by GitHub
co-authored by Diana Payton kyle
parent 9e5fe8dbdb
commit ec783fbff4
7 changed files with 95 additions and 19 deletions
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@@ -139,7 +139,19 @@ For more information and instructions, refer to [Data links]({{< relref "../link
Lets you set the display title of all fields. You can use [variables]({{< relref "../variables/templates-and-variables.md" >}}) in the field title.
When multiple stats are shown, this field controls the title in each stat. By default this is the series name and field name. You can use expressions like ${__series.name} or ${**field.name} to use only series name or field name in title or \${**cell_2} to refer to other fields (2 being field/column with index 2).
When multiple stats, fields, or series are shown, this field controls the title in each stat. You can use expressions like `${__field.name}` to use only the series name or the field name in title.
Given a field with a name of Temp, and labels of {"Loc"="PBI", "Sensor"="3"}
| Expression syntax | Example | Renders to | Explanation |
| ---------------------------- | ---------------------- | --------------------------------- | ----------- |
| `${__field.displayName}` | Same as syntax | `Temp {Loc="PBI", Sensor="3"}` | Displays the field name, and labels in `{}` if they are present. If there is only one label key in the response, then for the label portion, Grafana displays the value of the label without the enclosing braces. |
| `${__field.name}` | Same as syntax | `Temp` | Displays the name of the field (without labels). |
| `${__field.labels}` | Same as syntax | `Loc="PBI", Sensor="3"` | Displays the labels without the name. |
| `${__field.labels.X}` | `${__field.labels.Loc}` | `PBI` | Displays the value of the specified label key. |
| `${__field.labels.__values}` | Same as Syntax | `PBI, 3` | Displays the values of the labels separated by a comma (without label keys). |
If the value is an empty string after rendering the expression for a particular field, then the default display method is used.
### Max