- Expanded the `allow_columns_to_appear_in_same_group_by_clause!` macro in `models.rs` to include additional columns for datasets and users, improving query flexibility.
- Refactored the `list_permission_groups` function to include dataset count and assigned status, enhancing the information returned for each permission group.
- Updated SQL queries in `list_permission_groups` to utilize left joins for better data retrieval and to ensure accurate permission checks.
- Removed redundant column allowances in various files, streamlining the codebase and improving maintainability.
- Refactored dataset listing logic to incorporate user organization roles, allowing for more granular access control based on user permissions.
- Introduced new role checks for `WorkspaceAdmin`, `DataAdmin`, `Querier`, `RestrictedQuerier`, and `Viewer` to determine dataset visibility.
- Updated database queries to fetch datasets based on user roles and organization associations, improving data retrieval efficiency.
- Removed deprecated functions and streamlined the dataset fetching process, ensuring clarity and maintainability in the codebase.
These changes improve the API's security and usability by enforcing role-based access control for dataset operations.
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