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354 | from django import template
from django.contrib.auth.decorators import login_required
from django.http import HttpResponse, HttpResponseRedirect, JsonResponse
from django.core.paginator import Paginator
from django.template import loader
from django.urls import reverse
from django.shortcuts import render, get_object_or_404
from .models import (
Color,
Profile,
Product,
ProductImage,
Sensor,
SensorData,
)
from .forms import (
ColorForm,
ProductForm,
ProductImageForm,
ProfileForm,
SensorForm,
)
import traceback
from datetime import datetime, timedelta
def handle_color_form(request):
if request.method == 'POST' and "color" in request.POST:
color_form = ColorForm(request.POST)
if color_form.is_valid():
color = color_form.cleaned_data['color']
gradient = color_form.cleaned_data['gradient']
gradient_color = color_form.cleaned_data['gradient_color']
Color.objects.update_or_create(
defaults={'color': color, 'gradient': gradient, 'gradient_color': gradient_color}
)
else:
try:
color_instance = Color.objects.latest('id')
initial_data = {
'color': color_instance.color,
'gradient': color_instance.gradient,
'gradient_color': color_instance.gradient_color,
}
except Color.DoesNotExist:
color_instance = Color.objects.create()
initial_data = {
'color': color_instance.color,
'gradient': color_instance.gradient,
'gradient_color': color_instance.gradient_color,
}
color_form = ColorForm(initial=initial_data)
return color_form
def handle_background_color():
background_color, _ = Color.objects.get_or_create()
return background_color
@login_required(login_url="/login/")
def index(request):
color_form = handle_color_form(request)
profile, created = Profile.objects.get_or_create(user=request.user)
context = {
'segment': 'index',
'profile': profile,
'background_color': handle_background_color(),
'color_form': color_form,
}
html_template = loader.get_template('home/index.html')
return HttpResponse(html_template.render(context, request))
@login_required(login_url="/login/")
def pages(request):
context = {}
try:
color_form = handle_color_form(request)
profile, created = Profile.objects.get_or_create(user=request.user)
context.update({
"profile": profile,
"email": request.user.email,
"background_color": handle_background_color(),
"color_form": color_form,
})
load_template = request.path.split('/')[-1]
# if load_template == 'admin':
# return HttpResponseRedirect(reverse('admin:index'))
if load_template == "document.html":
context["responses"] = [
{"status_code": 200, "status": "OK", "context": "Data added successfully", "solution": "代表資料成功傳送"},
{"status_code": 400, "status": "Bad Request", "context": "Sensor name is required", "solution": "未提供感測器名稱"},
{"status_code": 400, "status": "Bad Request", "context": "Data must be a valid number", "solution": "數據必須為整數或浮點數"},
{"status_code": 400, "status": "Bad Request", "context": "Data is required", "solution": "未供數據資料"},
{"status_code": 404, "status": "Not Found", "context": "Sensor not found", "solution": "請確認感測器名稱是否正確或是該感測器未建立"},
{"status_code": 500, "status": "Internal Server Error", "context": "An error occurred", "solution": "伺服器內部出現問題"}
]
elif load_template == 'user.html':
if request.method == "POST" and "color" not in request.POST:
form = ProfileForm(request.POST, request.FILES, instance=profile)
if form.is_valid():
form.save()
return HttpResponseRedirect(request.path + '?save_success=True')
else:
form = ProfileForm(instance=profile)
context.update({
'form': form,
'username': request.user.username,
})
elif load_template == 'add_product.html':
if request.method == 'POST' and "color" not in request.POST:
form = ProductForm(request.POST, request.FILES, profile_real_name=profile.real_name)
image_form = ProductImageForm(request.POST, request.FILES)
if form.is_valid() and image_form.is_valid():
price = form.cleaned_data.get('price')
if price < 0:
form.add_error('price', '價錢不得小於0')
else:
product = form.save(commit=False)
product.seller = request.user
product.save()
images = request.FILES.getlist('multiImageInput')
for image in images:
ProductImage.objects.create(product=product, image=image)
return HttpResponseRedirect(request.path + '?save_success=True&')
else:
print(form.errors, image_form.errors)
else:
form = ProductForm(initial={
'email': request.user.email,
'phone_number': profile.phone_number,
'address': profile.contact_address
}, profile_real_name=profile.real_name)
image_form = ProductImageForm()
if not profile.real_name or not profile.phone_number or not profile.contact_address:
context['notification'] = True
context.update({
'form': form,
'image_form': image_form,
})
elif load_template == 'product_list.html':
context['products'] = Product.objects.order_by('name')
elif load_template == 'add_sensor.html':
if request.method == 'POST' and "color" not in request.POST:
form = SensorForm(request.POST)
if form.is_valid():
# 檢查是否有相同名稱的感測器
sensor_name = form.cleaned_data['name']
if Sensor.objects.filter(name=sensor_name).exists():
form.add_error('name', '具有相同名稱的感測器已存在')
context['has_errors'] = form.errors
else:
form.save()
context['sensor_add_success'] = True
else:
form = SensorForm()
context['form'] = form
context['has_errors'] = form.errors
elif load_template == "sensor_list.html":
sensors = Sensor.objects.all()
sensor_list = [{
'name': sensor.name,
'timestamp': SensorData.objects.filter(name=sensor).order_by('-timestamp').first().timestamp if SensorData.objects.filter(name=sensor).exists() else 'n/a',
'data': SensorData.objects.filter(name=sensor).order_by('-timestamp').first().data if SensorData.objects.filter(name=sensor).exists() else 'n/a',
} for sensor in sensors]
context['sensors'] = sensor_list
context['segment'] = load_template
html_template = loader.get_template('home/' + load_template)
return HttpResponse(html_template.render(context, request))
except template.TemplateDoesNotExist:
traceback.print_exc()
html_template = loader.get_template('home/page-404.html')
return HttpResponse(html_template.render(context, request))
except Exception:
traceback.print_exc()
html_template = loader.get_template('home/page-500.html')
return HttpResponse(html_template.render(context, request))
@login_required(login_url="/login/")
def delete_product(request, product_id):
try:
color_form = handle_color_form(request)
background_color = handle_background_color()
profile, created = Profile.objects.get_or_create(user=request.user)
context = {
"background_color": background_color,
"color_form" : color_form,
"profile" : profile
}
product = get_object_or_404(Product, id=product_id)
if request.method == "POST":
product.delete()
context["delete"] = True
context["products"] = Product.objects.all()
html_template = loader.get_template('home/product_list.html')
return HttpResponse(html_template.render(context, request))
else:
context["delete"] = False
context["products"] = Product.objects.all()
html_template = loader.get_template('home/product_list.html')
return HttpResponse(html_template.render(context, request))
except Exception:
html_template = loader.get_template('home/product_list.html')
return HttpResponse(html_template.render(context, request))
@login_required(login_url="/login/")
def sensor_data_list(request, sensor_name):
color_form = handle_color_form(request)
profile, created = Profile.objects.get_or_create(user=request.user)
background_color = handle_background_color()
sensor = get_object_or_404(Sensor, name=sensor_name)
sensor_data_list = SensorData.objects.filter(name=sensor).order_by('-timestamp')
paginator = Paginator(sensor_data_list, 20) # 每頁顯示 20 筆資料
page_number = request.GET.get('page')
page_obj = paginator.get_page(page_number)
context = {
'sensor': sensor,
'page_obj': page_obj,
'background_color': background_color,
'color_form' : color_form,
'profile': profile,
}
return render(request, 'home/sensor_data_list.html', context)
@login_required(login_url="/login/")
def add_sensor_data(request):
sensor_name = request.GET.get('name')
data = request.GET.get('data')
if not sensor_name:
return HttpResponse("Sensor name is required", status=400)
if not data:
return HttpResponse("Data is required", status=400)
try:
float_data = round(float(data), 2)
except ValueError:
return HttpResponse("Data must be a valid number", status=400)
try:
sensor = Sensor.objects.get(name=sensor_name)
SensorData.objects.create(name=sensor, data=float_data)
return HttpResponse("Data added successfully", status=200)
except Sensor.DoesNotExist:
return HttpResponse("Sensor not found", status=404)
except Exception as e:
return HttpResponse(f"An error occurred: {e}", status=500)
@login_required(login_url="/login/")
def delete_sensor(request, sensor_name):
try:
color_form = handle_color_form(request)
background_color = handle_background_color()
profile, created = Profile.objects.get_or_create(user=request.user)
context = {
"background_color": background_color,
"color_form" : color_form,
"profile" : profile
}
sensor = get_object_or_404(Sensor, name=sensor_name)
sensor.delete()
html_template = loader.get_template('home/index.html')
return HttpResponse(html_template.render(context, request))
except Exception:
html_template = loader.get_template('home/index.html')
return HttpResponse(html_template.render(context, request))
@login_required(login_url="/login/")
def get_sensors(request):
sensors = Sensor.objects.all().values('name')
return JsonResponse(list(sensors), safe=False)
@login_required(login_url="/login/")
def get_sensor_data(request, sensor_name):
now = datetime.now()
today_start = now.replace(hour=0, minute=0, second=0, microsecond=0)
data = SensorData.objects.filter(name__name=sensor_name, timestamp__gte=today_start).values('timestamp', 'data')
sensor = get_object_or_404(Sensor, name=sensor_name)
today = datetime.now().date()
start_date = today - timedelta(days=5)
historical_data = SensorData.objects.filter(name=sensor, timestamp__date__range=(start_date, today))
max_min_data = []
for single_date in (start_date + timedelta(n) for n in range(6)):
daily_data = historical_data.filter(timestamp__date=single_date)
if daily_data.exists():
daily_data_numeric = [float(d) for d in daily_data.values_list('data', flat=True)]
max_min_data.append({
'date': single_date.strftime('%Y-%m-%d'),
'max': max(daily_data_numeric),
'min': min(daily_data_numeric),
'count': daily_data.count(),
})
else:
max_min_data.append({
'date': single_date.strftime('%Y-%m-%d'),
'max': None,
'min': None,
'count': 0,
})
response_data = {
'current_data': list(data),
'historical_data': max_min_data
}
return JsonResponse(response_data, safe=False)
#-----------------API介面-----------------#
def get_counts(request):
sensor_count = Sensor.objects.count()
product_count = Product.objects.count()
return JsonResponse({'platform': '生產端平台', 'sensor_count': sensor_count, 'product_count': product_count})
def get_sensor_names(request):
sensor_names = list(Sensor.objects.values_list('name', flat=True))
return JsonResponse(sensor_names, safe=False)
def get_sensor_data_by_name(request, sensor_name, count):
count = int(request.GET.get('count', 10)) # 預設為10筆
sensor_data = SensorData.objects.filter(name__name=sensor_name).order_by('-timestamp')[:count]
data = list(sensor_data.values('timestamp', 'data'))
return JsonResponse(data, safe=False)
def get_product_ids(request):
product_ids = list(Product.objects.values_list('id', flat=True))
return JsonResponse(product_ids, safe=False)
def get_product_details(request, product_id):
try:
product = Product.objects.get(id=product_id)
product_images = ProductImage.objects.filter(product=product)
image_urls = [image.image.url for image in product_images]
image_urls.insert(0, product.image.url)
product_data = {
'name': product.name,
'email': product.email,
'phone_number': product.phone_number,
'address': product.address,
'product_name': product.product_name,
'price': product.price,
'description': product.description,
'images': image_urls
}
return JsonResponse(product_data, safe=False)
except Product.DoesNotExist:
return JsonResponse({'error': 'Product not found'}, status=404)
def custom_404(request, exception):
return render(request, 'home/page-404.html', {}, status=404)
def custom_403(request, exception):
return render(request, 'home/page-403.html', {}, status=403)
def custom_500(request):
return render(request, 'home/page-500.html', {}, status=500)
|
