458 lines
18 KiB
Python
458 lines
18 KiB
Python
"""
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Source 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, UserPassesTestMixin
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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
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from django.views import View
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from ..forms import SourceForm
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from ..models import Source, Satellite
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from ..utils import parse_pagination_params
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class SourceListView(LoginRequiredMixin, View):
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"""
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View for displaying a list of sources (Source).
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"""
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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 ID ascending)
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sort_param = request.GET.get("sort", "id")
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# Get filter parameters
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search_query = request.GET.get("search", "").strip()
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has_coords_average = request.GET.get("has_coords_average")
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has_coords_kupsat = request.GET.get("has_coords_kupsat")
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has_coords_valid = request.GET.get("has_coords_valid")
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has_coords_reference = request.GET.get("has_coords_reference")
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has_lyngsat = request.GET.get("has_lyngsat")
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objitem_count_min = request.GET.get("objitem_count_min", "").strip()
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objitem_count_max = request.GET.get("objitem_count_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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selected_satellites = request.GET.getlist("satellite_id")
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# Get all satellites for filter
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satellites = (
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Satellite.objects.filter(parameters__objitem__source__isnull=False)
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.distinct()
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.only("id", "name")
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.order_by("name")
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)
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# Get all Source objects with query optimization
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# Using annotate to count ObjItems efficiently (single query with GROUP BY)
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# Using prefetch_related for reverse ForeignKey relationships to avoid N+1 queries
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sources = Source.objects.prefetch_related(
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'source_objitems',
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'source_objitems__parameter_obj',
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'source_objitems__parameter_obj__id_satellite',
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'source_objitems__geo_obj',
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'marks',
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'marks__created_by__user'
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).annotate(
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objitem_count=Count('source_objitems')
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)
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# Apply filters
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# Filter by coords_average presence
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if has_coords_average == "1":
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sources = sources.filter(coords_average__isnull=False)
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elif has_coords_average == "0":
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sources = sources.filter(coords_average__isnull=True)
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# Filter by coords_kupsat presence
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if has_coords_kupsat == "1":
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sources = sources.filter(coords_kupsat__isnull=False)
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elif has_coords_kupsat == "0":
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sources = sources.filter(coords_kupsat__isnull=True)
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# Filter by coords_valid presence
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if has_coords_valid == "1":
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sources = sources.filter(coords_valid__isnull=False)
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elif has_coords_valid == "0":
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sources = sources.filter(coords_valid__isnull=True)
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# Filter by coords_reference presence
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if has_coords_reference == "1":
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sources = sources.filter(coords_reference__isnull=False)
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elif has_coords_reference == "0":
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sources = sources.filter(coords_reference__isnull=True)
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# Filter by LyngSat presence
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if has_lyngsat == "1":
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sources = sources.filter(source_objitems__lyngsat_source__isnull=False).distinct()
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elif has_lyngsat == "0":
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sources = sources.filter(
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~Q(source_objitems__lyngsat_source__isnull=False)
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).distinct()
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# Filter by ObjItem count
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if objitem_count_min:
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try:
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min_count = int(objitem_count_min)
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sources = sources.filter(objitem_count__gte=min_count)
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except ValueError:
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pass
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if objitem_count_max:
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try:
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max_count = int(objitem_count_max)
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sources = sources.filter(objitem_count__lte=max_count)
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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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sources = sources.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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sources = sources.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 ID
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if search_query:
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try:
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search_id = int(search_query)
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sources = sources.filter(id=search_id)
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except ValueError:
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# If not a number, ignore
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pass
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# Filter by satellites
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if selected_satellites:
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sources = sources.filter(
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source_objitems__parameter_obj__id_satellite_id__in=selected_satellites
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).distinct()
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# Apply sorting
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valid_sort_fields = {
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"id": "id",
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"-id": "-id",
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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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sources = sources.order_by(valid_sort_fields[sort_param])
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# Create paginator
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paginator = Paginator(sources, 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_sources = []
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has_any_lyngsat = False # Track if any source has LyngSat data
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for source in page_obj:
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# Format coordinates
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def format_coords(point):
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if point:
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longitude = point.coords[0]
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latitude = point.coords[1]
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lon = f"{longitude}E" if longitude > 0 else f"{abs(longitude)}W"
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lat = f"{latitude}N" if latitude > 0 else f"{abs(latitude)}S"
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return f"{lat} {lon}"
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return "-"
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coords_average_str = format_coords(source.coords_average)
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coords_kupsat_str = format_coords(source.coords_kupsat)
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coords_valid_str = format_coords(source.coords_valid)
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coords_reference_str = format_coords(source.coords_reference)
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# Get count of related ObjItems
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objitem_count = source.objitem_count
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# Get satellites for this source and check for LyngSat
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satellite_names = set()
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has_lyngsat = False
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lyngsat_id = None
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for objitem in source.source_objitems.all():
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if hasattr(objitem, 'parameter_obj') and objitem.parameter_obj:
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if hasattr(objitem.parameter_obj, 'id_satellite') and objitem.parameter_obj.id_satellite:
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satellite_names.add(objitem.parameter_obj.id_satellite.name)
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# Check if any objitem has LyngSat
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if hasattr(objitem, 'lyngsat_source') and objitem.lyngsat_source:
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has_lyngsat = True
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lyngsat_id = objitem.lyngsat_source.id
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has_any_lyngsat = True
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satellite_str = ", ".join(sorted(satellite_names)) if satellite_names else "-"
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# Get all marks (presence/absence)
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marks_data = []
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for mark in source.marks.all():
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marks_data.append({
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'mark': mark.mark,
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'timestamp': mark.timestamp,
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'created_by': str(mark.created_by) if mark.created_by else '-',
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})
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processed_sources.append({
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'id': source.id,
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'coords_average': coords_average_str,
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'coords_kupsat': coords_kupsat_str,
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'coords_valid': coords_valid_str,
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'coords_reference': coords_reference_str,
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'objitem_count': objitem_count,
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'satellite': satellite_str,
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'created_at': source.created_at,
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'updated_at': source.updated_at,
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'has_lyngsat': has_lyngsat,
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'lyngsat_id': lyngsat_id,
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'marks': marks_data,
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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_sources': processed_sources,
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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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'has_coords_average': has_coords_average,
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'has_coords_kupsat': has_coords_kupsat,
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'has_coords_valid': has_coords_valid,
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'has_coords_reference': has_coords_reference,
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'has_lyngsat': has_lyngsat,
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'has_any_lyngsat': has_any_lyngsat,
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'objitem_count_min': objitem_count_min,
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'objitem_count_max': objitem_count_max,
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'date_from': date_from,
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'date_to': date_to,
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'satellites': satellites,
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'selected_satellites': [
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int(x) if isinstance(x, str) else x for x in selected_satellites if (isinstance(x, int) or (isinstance(x, str) and x.isdigit()))
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],
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'full_width_page': True,
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}
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return render(request, "mainapp/source_list.html", context)
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class AdminModeratorMixin(UserPassesTestMixin):
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"""Mixin to restrict access to admin and moderator roles only."""
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def test_func(self):
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return (
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self.request.user.is_authenticated and
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hasattr(self.request.user, 'customuser') and
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self.request.user.customuser.role in ['admin', 'moderator']
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)
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def handle_no_permission(self):
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messages.error(self.request, 'У вас нет прав для выполнения этого действия.')
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return redirect('mainapp:home')
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class SourceUpdateView(LoginRequiredMixin, AdminModeratorMixin, View):
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"""View for editing Source with 4 coordinate fields and related ObjItems."""
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def get(self, request, pk):
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source = get_object_or_404(Source, pk=pk)
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form = SourceForm(instance=source)
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# Get related ObjItems ordered by creation date
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objitems = source.source_objitems.select_related(
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'parameter_obj',
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'parameter_obj__id_satellite',
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'parameter_obj__polarization',
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'parameter_obj__modulation',
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'parameter_obj__standard',
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'geo_obj',
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'created_by__user',
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'updated_by__user'
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).order_by('created_at')
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context = {
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'object': source,
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'form': form,
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'objitems': objitems,
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'full_width_page': True,
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}
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return render(request, 'mainapp/source_form.html', context)
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def post(self, request, pk):
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source = get_object_or_404(Source, pk=pk)
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form = SourceForm(request.POST, instance=source)
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if form.is_valid():
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source = form.save(commit=False)
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# Set updated_by to current user
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if hasattr(request.user, 'customuser'):
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source.updated_by = request.user.customuser
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source.save()
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messages.success(request, f'Источник #{source.id} успешно обновлен.')
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# Redirect back with query params if present
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if request.GET.urlencode():
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return redirect(f"{reverse('mainapp:source_update', args=[source.id])}?{request.GET.urlencode()}")
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return redirect('mainapp:source_update', pk=source.id)
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# If form is invalid, re-render with errors
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objitems = source.source_objitems.select_related(
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'parameter_obj',
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'parameter_obj__id_satellite',
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'parameter_obj__polarization',
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'parameter_obj__modulation',
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'parameter_obj__standard',
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'geo_obj',
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'created_by__user',
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'updated_by__user'
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).order_by('created_at')
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context = {
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'object': source,
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'form': form,
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'objitems': objitems,
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'full_width_page': True,
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}
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return render(request, 'mainapp/source_form.html', context)
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class SourceDeleteView(LoginRequiredMixin, AdminModeratorMixin, View):
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"""View for deleting Source."""
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def get(self, request, pk):
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source = get_object_or_404(Source, pk=pk)
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context = {
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'object': source,
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'objitems_count': source.source_objitems.count(),
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}
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return render(request, 'mainapp/source_confirm_delete.html', context)
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def post(self, request, pk):
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source = get_object_or_404(Source, pk=pk)
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source_id = source.id
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try:
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source.delete()
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messages.success(request, f'Источник #{source_id} успешно удален.')
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except Exception as e:
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messages.error(request, f'Ошибка при удалении источника: {str(e)}')
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return redirect('mainapp:source_update', pk=pk)
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# Redirect to source list
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if request.GET.urlencode():
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return redirect(f"{reverse('mainapp:home')}?{request.GET.urlencode()}")
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return redirect('mainapp:home')
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class DeleteSelectedSourcesView(LoginRequiredMixin, AdminModeratorMixin, View):
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"""View for deleting multiple selected sources with confirmation."""
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def get(self, request):
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"""Show confirmation page with details about sources 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 источники для удаления")
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return redirect('mainapp:home')
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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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sources = Source.objects.filter(id__in=id_list).prefetch_related(
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'source_objitems',
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'source_objitems__parameter_obj',
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'source_objitems__parameter_obj__id_satellite',
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'source_objitems__geo_obj'
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).annotate(
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objitem_count=Count('source_objitems')
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)
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# Prepare detailed information about sources
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sources_info = []
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total_objitems = 0
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for source in sources:
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# Get satellites for this source
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satellite_names = set()
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for objitem in source.source_objitems.all():
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if hasattr(objitem, 'parameter_obj') and objitem.parameter_obj:
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if hasattr(objitem.parameter_obj, 'id_satellite') and objitem.parameter_obj.id_satellite:
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satellite_names.add(objitem.parameter_obj.id_satellite.name)
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objitem_count = source.objitem_count
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total_objitems += objitem_count
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sources_info.append({
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'id': source.id,
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'objitem_count': objitem_count,
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'satellites': ", ".join(sorted(satellite_names)) if satellite_names else "-",
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})
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context = {
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'sources_info': sources_info,
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'total_sources': len(sources_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/source_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:home')
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def post(self, request):
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"""Actually delete the selected sources."""
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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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sources = Source.objects.filter(id__in=id_list)
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deleted_sources_count = sources.count()
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# Delete sources (cascade will delete related objitems)
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sources.delete()
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messages.success(
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request,
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f'Успешно удалено источников: {deleted_sources_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 источников: {deleted_sources_count}",
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"deleted_count": deleted_sources_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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