Function delete_region

pub async fn delete_region(pool: &Pool<MySql>, id: i64) -> Result<()>

Deletes a deployment region from the system.

This function permanently removes a region record from the database. It should be used with extreme caution, as it may affect deployed applications and infrastructure allocation.

Arguments

• pool - Database connection pool for executing the query
• id - Unique identifier of the region to delete

Returns

• Ok(()) - Successfully deleted the region
• Err(anyhow::Error) - Failed to delete the region

Warning

This operation is irreversible and potentially dangerous. Instead of deleting regions, consider changing their status to “deprecated” or “unavailable” first, and ensure no active deployments exist in the region before deletion.

Cascading Effects

Depending on the database schema and application logic:

• Deployed applications in this region may lose their region reference
• Foreign key constraints may prevent deletion if the region is in use
• Monitoring, billing, and operational systems may be affected

Transaction Handling

This function uses a database transaction to ensure atomicity of the operation. If any part of the operation fails, the entire operation is rolled back.