Виджет с усреднёнными точками на карте
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374
dbapp/mainapp/views/transponder.py
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374
dbapp/mainapp/views/transponder.py
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"""
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Transponder CRUD operations and related views.
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"""
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from datetime import datetime
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from django.contrib import messages
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from django.contrib.auth.mixins import LoginRequiredMixin
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from django.core.paginator import Paginator
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from django.db.models import Count, Q
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from django.http import JsonResponse
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from django.shortcuts import get_object_or_404, redirect, render
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from django.urls import reverse, reverse_lazy
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from django.views import View
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from django.views.generic import CreateView, UpdateView
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from mapsapp.models import Transponders
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from ..forms import TransponderForm
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from ..mixins import RoleRequiredMixin, FormMessageMixin
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from ..models import Satellite, Polarization
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from ..utils import parse_pagination_params
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class TransponderListView(LoginRequiredMixin, View):
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"""View for displaying a list of transponders with filtering and pagination."""
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def get(self, request):
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# Get pagination parameters
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page_number, items_per_page = parse_pagination_params(request)
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# Get sorting parameters (default to satellite and downlink)
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sort_param = request.GET.get("sort", "sat_id__name")
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# Get filter parameters
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search_query = request.GET.get("search", "").strip()
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selected_satellites = request.GET.getlist("satellite_id")
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selected_polarizations = request.GET.getlist("polarization")
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downlink_min = request.GET.get("downlink_min", "").strip()
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downlink_max = request.GET.get("downlink_max", "").strip()
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uplink_min = request.GET.get("uplink_min", "").strip()
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uplink_max = request.GET.get("uplink_max", "").strip()
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freq_range_min = request.GET.get("freq_range_min", "").strip()
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freq_range_max = request.GET.get("freq_range_max", "").strip()
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snr_min = request.GET.get("snr_min", "").strip()
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snr_max = request.GET.get("snr_max", "").strip()
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date_from = request.GET.get("date_from", "").strip()
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date_to = request.GET.get("date_to", "").strip()
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# Get all satellites and polarizations for filters
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satellites = Satellite.objects.filter(
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tran_satellite__isnull=False
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).distinct().only("id", "name").order_by("name")
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polarizations = Polarization.objects.all().order_by("name")
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# Get all transponders with query optimization
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transponders = Transponders.objects.select_related(
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'sat_id',
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'polarization',
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'created_by__user',
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'updated_by__user'
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).annotate(
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objitem_count=Count('transponder_objitems')
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)
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# Apply filters
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# Filter by satellites
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if selected_satellites:
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transponders = transponders.filter(sat_id_id__in=selected_satellites)
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# Filter by polarizations
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if selected_polarizations:
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transponders = transponders.filter(polarization_id__in=selected_polarizations)
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# Filter by downlink frequency
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if downlink_min:
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try:
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min_val = float(downlink_min)
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transponders = transponders.filter(downlink__gte=min_val)
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except ValueError:
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pass
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if downlink_max:
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try:
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max_val = float(downlink_max)
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transponders = transponders.filter(downlink__lte=max_val)
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except ValueError:
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pass
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# Filter by uplink frequency
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if uplink_min:
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try:
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min_val = float(uplink_min)
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transponders = transponders.filter(uplink__gte=min_val)
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except ValueError:
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pass
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if uplink_max:
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try:
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max_val = float(uplink_max)
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transponders = transponders.filter(uplink__lte=max_val)
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except ValueError:
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pass
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# Filter by frequency range
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if freq_range_min:
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try:
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min_val = float(freq_range_min)
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transponders = transponders.filter(frequency_range__gte=min_val)
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except ValueError:
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pass
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if freq_range_max:
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try:
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max_val = float(freq_range_max)
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transponders = transponders.filter(frequency_range__lte=max_val)
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except ValueError:
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pass
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# Filter by SNR
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if snr_min:
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try:
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min_val = float(snr_min)
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transponders = transponders.filter(snr__gte=min_val)
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except ValueError:
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pass
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if snr_max:
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try:
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max_val = float(snr_max)
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transponders = transponders.filter(snr__lte=max_val)
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except ValueError:
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pass
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# Filter by creation date range
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if date_from:
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try:
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date_from_obj = datetime.strptime(date_from, "%Y-%m-%d")
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transponders = transponders.filter(created_at__gte=date_from_obj)
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except (ValueError, TypeError):
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pass
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if date_to:
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try:
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from datetime import timedelta
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date_to_obj = datetime.strptime(date_to, "%Y-%m-%d")
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# Add one day to include entire end date
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date_to_obj = date_to_obj + timedelta(days=1)
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transponders = transponders.filter(created_at__lt=date_to_obj)
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except (ValueError, TypeError):
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pass
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# Search by name or zone name
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if search_query:
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transponders = transponders.filter(
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Q(name__icontains=search_query) |
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Q(zone_name__icontains=search_query) |
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Q(sat_id__name__icontains=search_query)
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)
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# Apply sorting
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valid_sort_fields = {
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"sat_id__name": "sat_id__name",
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"-sat_id__name": "-sat_id__name",
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"name": "name",
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"-name": "-name",
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"downlink": "downlink",
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"-downlink": "-downlink",
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"uplink": "uplink",
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"-uplink": "-uplink",
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"frequency_range": "frequency_range",
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"-frequency_range": "-frequency_range",
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"zone_name": "zone_name",
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"-zone_name": "-zone_name",
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"polarization__name": "polarization__name",
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"-polarization__name": "-polarization__name",
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"snr": "snr",
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"-snr": "-snr",
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"created_at": "created_at",
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"-created_at": "-created_at",
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"updated_at": "updated_at",
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"-updated_at": "-updated_at",
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"objitem_count": "objitem_count",
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"-objitem_count": "-objitem_count",
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}
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if sort_param in valid_sort_fields:
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transponders = transponders.order_by(valid_sort_fields[sort_param])
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# Create paginator
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paginator = Paginator(transponders, items_per_page)
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page_obj = paginator.get_page(page_number)
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# Prepare data for display
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processed_transponders = []
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for transponder in page_obj:
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processed_transponders.append({
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'id': transponder.id,
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'name': transponder.name or "-",
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'satellite': transponder.sat_id.name if transponder.sat_id else "-",
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'downlink': f"{transponder.downlink:.3f}" if transponder.downlink else "-",
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'uplink': f"{transponder.uplink:.3f}" if transponder.uplink else "-",
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'frequency_range': f"{transponder.frequency_range:.3f}" if transponder.frequency_range else "-",
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'transfer': f"{transponder.transfer:.3f}" if transponder.transfer else "-",
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'zone_name': transponder.zone_name or "-",
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'polarization': transponder.polarization.name if transponder.polarization else "-",
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'snr': f"{transponder.snr:.1f}" if transponder.snr else "-",
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'objitem_count': transponder.objitem_count,
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'created_at': transponder.created_at,
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'updated_at': transponder.updated_at,
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'created_by': transponder.created_by if transponder.created_by else "-",
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'updated_by': transponder.updated_by if transponder.updated_by else "-",
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})
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# Prepare context for template
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context = {
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'page_obj': page_obj,
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'processed_transponders': processed_transponders,
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'items_per_page': items_per_page,
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'available_items_per_page': [50, 100, 500, 1000],
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'sort': sort_param,
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'search_query': search_query,
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'satellites': satellites,
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'polarizations': polarizations,
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'selected_satellites': [
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int(x) if isinstance(x, str) else x for x in selected_satellites
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if (isinstance(x, int) or (isinstance(x, str) and x.isdigit()))
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],
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'selected_polarizations': [
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int(x) if isinstance(x, str) else x for x in selected_polarizations
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if (isinstance(x, int) or (isinstance(x, str) and x.isdigit()))
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],
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'downlink_min': downlink_min,
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'downlink_max': downlink_max,
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'uplink_min': uplink_min,
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'uplink_max': uplink_max,
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'freq_range_min': freq_range_min,
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'freq_range_max': freq_range_max,
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'snr_min': snr_min,
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'snr_max': snr_max,
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'date_from': date_from,
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'date_to': date_to,
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'full_width_page': True,
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}
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return render(request, "mainapp/transponder_list.html", context)
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class TransponderCreateView(RoleRequiredMixin, FormMessageMixin, CreateView):
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"""View for creating a new transponder."""
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model = Transponders
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form_class = TransponderForm
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template_name = "mainapp/transponder_form.html"
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success_url = reverse_lazy("mainapp:transponder_list")
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success_message = "Транспондер успешно создан!"
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required_roles = ["admin", "moderator"]
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context['action'] = 'create'
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context['title'] = 'Создание транспондера'
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return context
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def form_valid(self, form):
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form.instance.created_by = self.request.user.customuser
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form.instance.updated_by = self.request.user.customuser
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return super().form_valid(form)
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class TransponderUpdateView(RoleRequiredMixin, FormMessageMixin, UpdateView):
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"""View for updating an existing transponder."""
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model = Transponders
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form_class = TransponderForm
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template_name = "mainapp/transponder_form.html"
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success_url = reverse_lazy("mainapp:transponder_list")
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success_message = "Транспондер успешно обновлен!"
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required_roles = ["admin", "moderator"]
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context['action'] = 'update'
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context['title'] = f'Редактирование транспондера #{self.object.id}'
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# Get related objitems count
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context['objitem_count'] = self.object.transponder_objitems.count()
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return context
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def form_valid(self, form):
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form.instance.updated_by = self.request.user.customuser
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return super().form_valid(form)
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class DeleteSelectedTranspondersView(RoleRequiredMixin, View):
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"""View for deleting multiple selected transponders with confirmation."""
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required_roles = ["admin", "moderator"]
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def get(self, request):
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"""Show confirmation page with details about transponders to be deleted."""
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ids = request.GET.get("ids", "")
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if not ids:
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messages.error(request, "Не выбраны транспондеры для удаления")
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return redirect('mainapp:transponder_list')
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try:
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id_list = [int(x) for x in ids.split(",") if x.isdigit()]
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transponders = Transponders.objects.filter(id__in=id_list).select_related(
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'sat_id',
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'polarization'
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).annotate(
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objitem_count=Count('transponder_objitems')
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)
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# Prepare detailed information about transponders
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transponders_info = []
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total_objitems = 0
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for transponder in transponders:
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objitem_count = transponder.objitem_count
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total_objitems += objitem_count
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transponders_info.append({
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'id': transponder.id,
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'name': transponder.name or "-",
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'satellite': transponder.sat_id.name if transponder.sat_id else "-",
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'downlink': f"{transponder.downlink:.3f}" if transponder.downlink else "-",
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'frequency_range': f"{transponder.frequency_range:.3f}" if transponder.frequency_range else "-",
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'objitem_count': objitem_count,
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})
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context = {
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'transponders_info': transponders_info,
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'total_transponders': len(transponders_info),
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'total_objitems': total_objitems,
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'ids': ids,
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}
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return render(request, 'mainapp/transponder_bulk_delete_confirm.html', context)
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except Exception as e:
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messages.error(request, f'Ошибка при подготовке удаления: {str(e)}')
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return redirect('mainapp:transponder_list')
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def post(self, request):
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"""Actually delete the selected transponders."""
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ids = request.POST.get("ids", "")
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if not ids:
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return JsonResponse({"error": "Нет ID для удаления"}, status=400)
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try:
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id_list = [int(x) for x in ids.split(",") if x.isdigit()]
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# Get count before deletion
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transponders = Transponders.objects.filter(id__in=id_list)
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deleted_count = transponders.count()
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# Delete transponders (cascade will handle related objitems)
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transponders.delete()
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messages.success(
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request,
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f'Успешно удалено транспондеров: {deleted_count}'
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)
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return JsonResponse({
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"success": True,
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"message": f"Успешно удалено транспондеров: {deleted_count}",
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"deleted_count": deleted_count,
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})
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except Exception as e:
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return JsonResponse({"error": f"Ошибка при удалении: {str(e)}"}, status=500)
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