To understand and describe what you're asking, here's what the...

To understand and describe what you're asking, here's what the code or use-case you're describing appears to do conceptually:

1. Background Context:

   • You are working with Grafana, leveraging its ability to use JavaScript and queries to dynamically retrieve and display data.
   • Specifically, you've mentioned having a "set" or list of stores that is retrieved (likely from your database or API) using an MQL query.
   • This set is part of JavaScript code inside a "business charts" section.

2. Requirement:

   • You want to populate a Grafana dashboard variable with this "set of stores."
   • Once the variable is populated, changing or manipulating this variable should affect other panels or visualizations in the dashboard.

3. Hypothetical Code Behavior: This is what might happen in implementation:

   • Use a JavaScript function or logic inside your business chart to run the MQL query, retrieve the set of stores, and populate that list as a Grafana variable.
   • In Grafana, variables can manipulate other panels by binding the variable values to specific filters in queries or parameters (e.g., as part of panel URLs or SQL/MQL where clauses).
   • Additionally, by programmatically updating the dashboard URL to include the variable and its value via template variables (e.g., ?var-store=value1), you can create dynamic interactions between panels.

4. High-Level Code Design: Below is a high-level description of how you might implement this:

   • Retrieve the Set of Stores: Use a JavaScript function within the "business chart code" to execute the MQL query and retrieve a list of stores.

     // Example: Fetch stores using MQL query
     const stores = queryMQL('SELECT store FROM stores_table');
     

   • Update Grafana Variable: Use Grafana's templating functionality to assign the result to a dashboard variable.

     • This might involve dynamically populating the variable store based on the JavaScript code.

   • URL Manipulation: Use Grafana's URL parameters to include the selected variable. For example:

     http://grafana-dashboard-url?var-store=StoreName
     

     In your code:

     // Append store variable to the URL
     const selectedStore = "StoreName";
     const dashboardUrl = `http://grafana-dashboard-url?var-store=${selectedStore}`;
     window.location.href = dashboardUrl;
     

   • Affect Other Panels: Other panels should be configured to listen to the variable var-store to filter their queries and display related data.

5. Final Thought: The code you're referencing dynamically fetches store values via JavaScript and MQL, assigns them to a variable in Grafana, and manipulates the dashboard's URL or filters. This variable then acts as an input to control/filter data displayed across multiple panels in your Grafana dashboard.