20 lines
759 B
Plaintext
20 lines
759 B
Plaintext
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sequenceDiagram
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participant U as 管理员
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participant FE as frontend-admin
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participant API as /api/admin/configs/{key}
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participant SVC as admin_service
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participant DB as PostgreSQL
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U->>FE: 切换应急模式开关
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FE->>API: PUT /api/admin/configs/emergency_mode
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API->>API: require_admin 校验权限
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API->>SVC: update_config(key, value, agent_id)
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SVC->>DB: SELECT SystemConfig WHERE key=emergency_mode
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DB-->>SVC: 当前值 "false"
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SVC->>DB: INSERT ConfigChangeLog(old="false", new="true", by=agent_id)
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SVC->>DB: UPDATE SystemConfig SET value="true"
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DB-->>SVC: 更新成功
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SVC-->>API: {key, old_value, new_value, changed_at}
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API-->>FE: 返回变更结果
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FE->>FE: 显示变更成功提示
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