37 lines
1.2 KiB
Python
37 lines
1.2 KiB
Python
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# sensors/views.py
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from django.http import JsonResponse
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from .models import Sensor
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def get_sensor_data(request, area_code, parameter_type):
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try:
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sensors = Sensor.objects.filter(area_code=area_code)
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if not sensors.exists():
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return JsonResponse({'error': 'No sensors found for this area code'}, status=404)
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data_list = []
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for sensor in sensors:
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# 获取该传感器最新的指定参数的数据
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data = sensor.data.filter(parameter_type=parameter_type).order_by('-timestamp').first()
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if data:
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data_list.append({
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'sensor_uuid': str(sensor.uuid),
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'value': float(data.value),
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'timestamp': data.timestamp.isoformat()
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})
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if not data_list:
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return JsonResponse({'error': f'No {parameter_type} data available for this area'}, status=404)
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response = {
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'area_code': area_code,
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'parameter_type': parameter_type,
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'sensors': data_list
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}
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return JsonResponse(response)
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except Exception as e:
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return JsonResponse({'error': str(e)}, status=500)
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