codeant-ai-for-open-source[bot] commented on PR #38568:
URL: https://github.com/apache/superset/pull/38568#issuecomment-4035588321
## **Sequence Diagram**
This PR lets dashboard authors pre-filter which time grain options are
available in a native Time Grain filter and applies that allowlist at runtime
so viewers only see the configured subset.
```mermaid
sequenceDiagram
participant Author
participant DashboardUI
participant Backend
participant Runtime
participant TimeGrainFilter
participant Viewer
Author->>DashboardUI: Open Time Grain filter configuration
DashboardUI->>Backend: Fetch dataset with supported time grains
Backend-->>DashboardUI: Return dataset time grain list
Author->>DashboardUI: Select allowed time grains and save
DashboardUI->>Backend: Save filter config with time_grains allowlist
Viewer->>Runtime: Load dashboard
Runtime->>TimeGrainFilter: Initialize with filter config and data
TimeGrainFilter->>TimeGrainFilter: Filter options by time_grains
allowlist
TimeGrainFilter-->>Viewer: Render Time Grain select with allowed options
```
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