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Use context.interpolate function

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This commit is contained in:
Kristina Durivage
2025-08-02 13:19:52 -05:00
parent 15937aab9c
commit 933975b680
1 changed files with 15 additions and 25 deletions
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packages/grafana-data/src/transformations/transformers/calculateField.ts
+15 -25
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@@ -259,28 +259,18 @@ export const calculateFieldTransformer: DataTransformerInfo<CalculateFieldTransf
};
});
case CalculateFieldMode.TemplateExpression:
return data.map((frame) => {
if (options.template?.expression !== undefined) {
let newFieldVals: Array<string | undefined>;
if (options.template?.replaceFn !== undefined) {
newFieldVals = Array.from({ length: frame.length }, (_, i) => {
const fieldVars: ScopedVars = {};
frame.fields.forEach((field) => {
fieldVars[field.name] = {
value: field.values[i],
};
});
const outVal = options.template?.replaceFn(options.template.expression, fieldVars);
console.log('replacefn exists', i, outVal);
return outVal;
if (options.template?.expression !== undefined) {
return data.map((frame) => {
const newFieldVals = Array.from({ length: frame.length }, (_, i) => {
const fieldVars: ScopedVars = {};
frame.fields.forEach((field) => {
fieldVars[field.name] = {
value: field.values[i],
};
});
} else {
console.log('replacefn not exists');
newFieldVals = Array.from({ length: frame.length }, () => {
return options.template?.expression;
});
}
console.log('newFieldVals', newFieldVals);
const replaced = ctx.interpolate(options.template!.expression, fieldVars);
return replaced;
});
const f: Field = {
name: options.alias ?? 'Field',
type: FieldType.string,
@@ -291,10 +281,10 @@ export const calculateFieldTransformer: DataTransformerInfo<CalculateFieldTransf
...frame,
fields: options.replaceFields ? [f] : [...frame.fields, f],
};
} else {
return frame;
}
});
});
} else {
return data;
}
}
// Nothing configured