fix: handle invalid initial value in variable formatter (#36)

Stan van Rooy · web-flow · commit 58ad7c61d5c0 · 2023-10-24T18:43:28.000+05:30
There seems to be an issue present in older versions of Grafana, where a wrong initial value is sent. This handles that edge case. https://github.com/parseablehq/parseable-datasource/assets/49564025/8ef3dd77-88ba-48ef-be37-f0210db64016
diff --git a/src/datasource.ts b/src/datasource.ts
@@ -91,8 +91,10 @@ export class DataSource extends DataSourceApi<MyQuery, MyDataSourceOptions> {
   }
 
   private formatter(value: string | string[], options: any): string {
-    if (options.multi) {
+    if (options.multi && Array.isArray(value)) {
       return (value as string[]).map(v => `'${v}'`).join(',');
+    } else if (options.multi) {
+      return `'${value}'`;
     }
     return value as string;
   }

Original file line number	Diff line number	Diff line change
`@@ -91,8 +91,10 @@ export class DataSource extends DataSourceApi<MyQuery, MyDataSourceOptions> {`
`91`	`91`	`}`
`92`	`92`
`93`	`93`	`private formatter(value: string \| string[], options: any): string {`
`94`		`- if (options.multi) {`
	`94`	`+ if (options.multi && Array.isArray(value)) {`
`95`	`95`	return (value as string[]).map(v => `'${v}'`).join(',');
	`96`	`+ } else if (options.multi) {`
	`97`	+ return `'${value}'`;
`96`	`98`	`}`
`97`	`99`	`return value as string;`
`98`	`100`	`}`