Refactor Views to Service Layer

administration/services.py

+from dateutil.relativedelta import relativedelta
+from django.db.models import Count
+from django.utils import timezone
+from datetime import datetime
+
+from administration.forms import PeriodForm
+from administration.models import VerificationSetting
+from app.models import LaporanMateri, Materi
+
+
+class DateHelperService:
+
+    @staticmethod
+    def get_start_end_date(period):
+        if period == 'ALL_TIME':
+            return (None, None)
+        elif period.split("_")[0] == "LAST":
+            end, start = DateHelperService.handle_last(period)
+            return (start, end)
+        elif period.split("_")[0] == "CURRENT":
+            end, start = DateHelperService.handle_current(period)
+            return (start, end)
+        elif period.split("_")[0] == "MINUS":
+            end, start = DateHelperService.handle_minus(period)
+            return (start, end)
+        else:
+            return (None, None)
+
+    @staticmethod
+    def handle_minus(period):
+        start = timezone.now()
+        end = None
+        delta = int(period.split("_")[1])
+        if period.split("_")[2] == "MONTH":
+            start = start.replace(day=1, hour=0, minute=0,
+                                  second=0, microsecond=0)
+            start = start - relativedelta(months=delta)
+            end = start + relativedelta(months=1)
+        elif period.split("_")[2] == "YEAR":
+            start = start.replace(month=1, day=1, hour=0,
+                                  minute=0, second=0, microsecond=0)
+            start = start - relativedelta(years=delta)
+            end = start + relativedelta(years=1)
+        return end, start
+
+    @staticmethod
+    def handle_current(period):
+        start = timezone.now()
+        end = None
+        if period.split("_")[1] == "MONTH":
+            start = start.replace(day=1, hour=0, minute=0,
+                                  second=0, microsecond=0)
+            end = start + relativedelta(months=1)
+        elif period.split("_")[1] == "YEAR":
+            start = start.replace(month=1, day=1, hour=0,
+                                  minute=0, second=0, microsecond=0)
+            end = start + relativedelta(years=1)
+        return end, start
+
+    @staticmethod
+    def handle_last(period):
+        end = timezone.now()
+        delta = 7
+        if period.split("_")[1] == "WEEK":
+            delta = 7
+        if period.split("_")[1] == "MONTH":
+            delta = 30
+        if period.split("_")[1] == "QUARTER":
+            delta = 90
+        if period.split("_")[1] == "YEAR":
+            delta = 365
+        start = end - relativedelta(days=delta)
+        return end, start
+
+class DetailVerificationService:
+
+    @staticmethod
+    def init_data(context, materi):
+        context["materi_data"] = materi
+        context["kriteria_list"] = VerificationSetting.objects.filter(
+            archived=False)
+        if materi.status == "PENDING" or materi.status == "REVISION":
+            riwayat = False
+        else:
+            riwayat = True
+        context["riwayat"] = riwayat
+        context["verification_report"] = materi.verificationreport_set.first()
+
+    @staticmethod
+    def initilize_kriteria(items) -> list:
+        kriteria = []
+        for item in items:
+            if "kriteria" in item[0]:
+                verification_item_id = item[0].split("-")[1]
+                verif_obj = VerificationSetting.objects.get(
+                    id=int(verification_item_id))
+                kriteria_value = {
+                    "title": verif_obj.title,
+                    "status": True if item[1] == "1" else False
+                }
+                kriteria.append(kriteria_value)
+        return kriteria
+
+    @staticmethod
+    def action_approve(materi):
+        DetailVerificationService.save_materi_status(materi, "APPROVE")
+
+    @staticmethod
+    def action_disapprove(materi):
+        DetailVerificationService.save_materi_status(materi, "DISAPPROVE")
+
+    @staticmethod
+    def save_materi_status(materi, status: str):
+        materi.status = status
+        materi.save()
+
+class StatisticService:
+
+    @staticmethod
+    def get_filter_set(period, kwargs):
+        filter_set = {}
+        form = PeriodForm()
+        DEFAULT_PERIOD = "LAST_MONTH"
+        if form.is_valid():
+            form_data = form.cleaned_data
+            if len(form_data["categories"]) == 0:
+                form_data["categories"] = None
+
+            if form_data["period"] == "":
+                form_data["period"] = DEFAULT_PERIOD
+
+            # check if using custom date range
+            end, start = StatisticService.init_date(DEFAULT_PERIOD, form_data)
+            filter_set["start"] = start
+            filter_set["end"] = end
+            filter_set["categories"] = form_data["categories"]
+        return filter_set
+
+    @staticmethod
+    def init_date(default_period, form_data):
+        if form_data["start_date"] is not None and form_data["end_date"] is not None:
+            start = timezone.make_aware(datetime.combine(
+                form_data["start_date"], datetime.min.time()))
+            end = timezone.make_aware(datetime.combine(
+                form_data["end_date"], datetime.min.time()))
+        elif form_data["period"] is not None:
+            start, end = DateHelperService.get_start_end_date(form_data["period"])
+        else:
+            start, end = DateHelperService.get_start_end_date(default_period)
+        return end, start
+
+    @staticmethod
+    def generate_view_stat(chart_data, colors, data_sets, label, time_step):
+        for label, color, dataset in zip(label, colors, data_sets):
+            result = {
+                "label": label,
+                "backgroundColor": color,
+                "borderColor": color,
+                "borderWidth": 1
+            }
+            data = []
+            total = 0
+            s = 0
+            e = 1
+            while e < len(time_step):
+                todays = dataset.filter(
+                    timestamp__gte=time_step[s], timestamp__lt=time_step[e]).count()
+                data.append(todays)
+                total += todays
+                s += 1
+                e += 1
+            result["data"] = data
+            chart_data["charts"].append(result)
+            chart_data["total"].append(total)
+
+
+    @staticmethod
+    def get_query_set(user, object_statistic, **kwargs):
+        if user.is_admin:
+            return object_statistic.objects.filter(materi__status="APPROVE")
+        else:
+            return object_statistic.objects.filter(materi__status="APPROVE", materi__uploader=user.id)
+
+
+    @staticmethod
+    def filter_qs(qs, filter_set):
+        if filter_set.get("categories", None) is not None:
+            qs = qs.filter(materi__categories__in=filter_set.get("categories"))
+        if filter_set.get("start") is not None and filter_set.get("end") is not None:
+            s = filter_set.get("start")
+            e = filter_set.get("end")
+            qs = qs.filter(timestamp__gte=s, timestamp__lt=e)
+        return qs.distinct()
+
+class LaporanMateriService:
+
+    @staticmethod
+    def initilize_report():
+        laporan_materi = LaporanMateri.objects.filter(is_rejected=False)
+        materi_dilaporkan = Materi.objects \
+            .filter(laporanmateri__id__in=laporan_materi, status="APPROVE") \
+            .annotate(jumlah_laporan=Count('laporanmateri__materi_id')) \
+            .order_by('-jumlah_laporan') \
+            .distinct()
+        materi_diblokir = Materi.objects.filter(status="BLOCKED")
+        return laporan_materi, materi_dilaporkan, materi_diblokir

administration/views.py

-import json
-from datetime import datetime, date
-
 from django.core.exceptions import PermissionDenied
 from django.contrib.auth.hashers import make_password
 from django.db.models import Count
 from django.http import HttpResponseRedirect, JsonResponse
-from django.shortcuts import get_object_or_404, render
+from django.shortcuts import get_object_or_404
 from django.views.generic import TemplateView, View
 from django.contrib import messages
-from django.utils import timezone, lorem_ipsum
-from dateutil.relativedelta import relativedelta
+from django.utils import timezone
 from administration.models import VerificationReport, VerificationSetting, DeletionHistory
 from administration.forms import CategoryForm, VerificationSettingForm, RegistrasiAdminForm, PeriodForm, EditAdminStatusForm
-from app.models import Category, Materi, ViewStatistics, DownloadStatistics, Comment, Like, getRandomColor, LaporanMateri
-from app.views import permission_denied
+from administration.services import StatisticService, DetailVerificationService, LaporanMateriService
+from app.models import Category, Materi, ViewStatistics, DownloadStatistics, Comment, Like, LaporanMateri
 from authentication.models import User
 from datetime import datetime
 
@@ -24,52 +20,6 @@ from django.core import management
 ADMINISTRATION_MANAGEMENT = "/administration/kelola-admin/"
 ADMINISTRATION_REPORT = "/administration/laporan-materi/"
 
-def get_start_end_date(period):
-    if period == 'ALL_TIME':
-        return (None, None)
-    elif period.split("_")[0] == "LAST":
-        end = timezone.now()
-        delta = 7
-        if period.split("_")[1] == "WEEK":
-            delta = 7
-        if period.split("_")[1] == "MONTH":
-            delta = 30
-        if period.split("_")[1] == "QUARTER":
-            delta = 90
-        if period.split("_")[1] == "YEAR":
-            delta = 365
-        start = end - relativedelta(days=delta)
-        return (start, end)
-    elif period.split("_")[0] == "CURRENT":
-        start = timezone.now()
-        if period.split("_")[1] == "MONTH":
-            start = start.replace(day=1, hour=0, minute=0,
-                                  second=0, microsecond=0)
-            end = start + relativedelta(months=1)
-            return (start, end)
-        elif period.split("_")[1] == "YEAR":
-            start = start.replace(month=1, day=1, hour=0,
-                                  minute=0, second=0, microsecond=0)
-            end = start + relativedelta(years=1)
-            return (start, end)
-    elif period.split("_")[0] == "MINUS":
-        start = timezone.now()
-        delta = int(period.split("_")[1])
-        if period.split("_")[2] == "MONTH":
-            start = start.replace(day=1, hour=0, minute=0,
-                                  second=0, microsecond=0)
-            start = start - relativedelta(months=delta)
-            end = start + relativedelta(months=1)
-            return (start, end)
-        elif period.split("_")[2] == "YEAR":
-            start = start.replace(month=1, day=1, hour=0,
-                                  minute=0, second=0, microsecond=0)
-            start = start - relativedelta(years=delta)
-            end = start + relativedelta(years=1)
-            return (start, end)
-    else:
-        return (None, None)
-
 
 class VerificationView(TemplateView):
     template_name = "verif.html"
@@ -104,44 +54,25 @@ class DetailVerificationView(TemplateView):
         context = super(DetailVerificationView,
                         self).get_context_data(**kwargs)
         materi = get_object_or_404(Materi, pk=kwargs["pk"])
-        context["materi_data"] = materi
-        context["kriteria_list"] = VerificationSetting.objects.filter(
-            archived=False)
-        if materi.status == "PENDING" or materi.status == "REVISION":
-            riwayat = False
-        else:
-            riwayat = True
-        context["riwayat"] = riwayat
-        context["verification_report"] = materi.verificationreport_set.first()
+        DetailVerificationService.init_data(context, materi)
         return context
 
+
     def post(self, request, *args, **kwargs):
         materi = get_object_or_404(Materi, pk=kwargs["pk"])
         feedback = request.POST.get("feedback", "")
         action = request.POST.get("action", None)
 
         report = {}
-        kriteria = []
-        for item in request.POST.items():
-            if "kriteria" in item[0]:
-                verification_item_id = item[0].split("-")[1]
-                verif_obj = VerificationSetting.objects.get(
-                    id=int(verification_item_id))
-                kriteria_value = {
-                    "title": verif_obj.title,
-                    "status": True if item[1] == "1" else False
-                }
-                kriteria.append(kriteria_value)
-
-        report["kriteria"] = kriteria
+        items = request.POST.items()
+
+        report["kriteria"] = DetailVerificationService.initilize_kriteria(items)
         report["feedback"] = feedback
 
         if action == "approve" and feedback != "":
-            materi.status = "APPROVE"
-            materi.save()
+            DetailVerificationService.action_approve(materi)
         elif action == "disapprove" and feedback != "":
-            materi.status = "DISAPPROVE"
-            materi.save()
+            DetailVerificationService.action_disapprove(materi)
         else:
             context = self.get_context_data(**kwargs)
             context["error"] = True
@@ -151,6 +82,7 @@ class DetailVerificationView(TemplateView):
         verif_report.save()
         return HttpResponseRedirect("/administration/")
 
+
     def get(self, request, *args, **kwargs):
         context = self.get_context_data(**kwargs)
         return self.render_to_response(context=context)
@@ -291,56 +223,9 @@ class StatisticsView(TemplateView):
         context["periodForm"] = PeriodForm(self.request.GET)
         return context
 
-    def get_filter_set(self, **kwargs):
-        filter_set = {}
-        form = PeriodForm(self.request.GET)
-        DEFAULT_PERIOD = "LAST_MONTH"
-        if form.is_valid():
-            form_data = form.cleaned_data
-            if len(form_data["categories"]) == 0:
-                form_data["categories"] = None
-
-            if form_data["period"] == "":
-                form_data["period"] = DEFAULT_PERIOD
-
-            # check if using custom date range
-            if form_data["start_date"] is not None and form_data["end_date"] is not None:
-                start = timezone.make_aware(datetime.combine(
-                    form_data["start_date"], datetime.min.time()))
-                end = timezone.make_aware(datetime.combine(
-                    form_data["end_date"], datetime.min.time()))
-            elif form_data["period"] is not None:
-                start, end = get_start_end_date(form_data["period"])
-            else:
-                start, end = get_start_end_date(DEFAULT_PERIOD)
-            filter_set["start"] = start
-            filter_set["end"] = end
-            filter_set["categories"] = form_data["categories"]
-        return filter_set
-
-    def get_query_set(self, object_statistic, **kwargs):
-        if self.request.user.is_admin:
-            return object_statistic.objects.filter(materi__status="APPROVE")
-        else:
-            return object_statistic.objects.filter(materi__status="APPROVE", materi__uploader=self.request.user.id)
-
-    def filter_qs(self, qs, filter_set):
-        if filter_set.get("categories", None) is not None:
-            qs = qs.filter(materi__categories__in=filter_set.get("categories"))
-        if filter_set.get("start") is not None and filter_set.get("end") is not None:
-            s = filter_set.get("start")
-            e = filter_set.get("end")
-            qs = qs.filter(timestamp__gte=s, timestamp__lt=e)
-        return qs.distinct()
 
-    # def generate_table_data(self, data_sets):
-    #     table_data = {}
 
-    #     counter = 1
-    #     row_materi_table = []
-    #     for item in data_sets:
 
-    #         # return res
 
     def generate_chart_data(self, start, end, data_sets):
         chart_data = {
@@ -354,41 +239,21 @@ class StatisticsView(TemplateView):
         for i in time_step:
             chart_data["label"].append(i.strftime("%d/%m/%Y"))
 
-        # generate view stat
-        for label, color, dataset in zip(label, colors, data_sets):
-            result = {
-                "label": label,
-                "backgroundColor": color,
-                "borderColor": color,
-                "borderWidth": 1
-            }
-            data = []
-            total = 0
-            s = 0
-            e = 1
-            while e < len(time_step):
-                todays = dataset.filter(
-                    timestamp__gte=time_step[s], timestamp__lt=time_step[e]).count()
-                data.append(todays)
-                total += todays
-                s += 1
-                e += 1
-            result["data"] = data
-            chart_data["charts"].append(result)
-            chart_data["total"].append(total)
+        StatisticService.generate_view_stat(chart_data, colors, data_sets, label, time_step)
         return chart_data
 
+
     def get(self, request, *args, **kwargs):
         context = self.get_context_data(**kwargs)
-        filter_set = self.get_filter_set(**kwargs)
-        view_set = self.get_query_set(ViewStatistics, **kwargs)
-        view_set = self.filter_qs(view_set, filter_set)
-        download_set = self.get_query_set(DownloadStatistics, **kwargs)
-        download_set = self.filter_qs(download_set, filter_set)
-        like_set = self.get_query_set(Like, **kwargs)
-        like_set = self.filter_qs(like_set, filter_set)
-        comment_set = self.get_query_set(Comment, **kwargs)
-        comment_set = self.filter_qs(comment_set, filter_set)
+        filter_set = StatisticService.get_filter_set(self.request.GET,**kwargs)
+        view_set = StatisticService.get_query_set(self.request.user,ViewStatistics, **kwargs)
+        view_set = StatisticService.filter_qs(view_set, filter_set)
+        download_set = StatisticService.get_query_set(self.request.user, DownloadStatistics, **kwargs)
+        download_set = StatisticService.filter_qs(download_set, filter_set)
+        like_set = StatisticService.get_query_set(self.request.user, Like, **kwargs)
+        like_set = StatisticService.filter_qs(like_set, filter_set)
+        comment_set = StatisticService.get_query_set(self.request.user, Comment, **kwargs)
+        comment_set = StatisticService.filter_qs(comment_set, filter_set)
 
         data_sets = [view_set, download_set, like_set, comment_set]
         chart_data = self.generate_chart_data(
@@ -657,13 +522,11 @@ class LaporanMateriView(TemplateView):
 
     def get(self, request, *args, **kwargs):
         context = super(LaporanMateriView, self).get_context_data(**kwargs)
-        context["laporan_materi"] = LaporanMateri.objects.filter(is_rejected=False)
-        context["materi_dilaporkan"] = Materi.objects \
-            .filter(laporanmateri__id__in=context["laporan_materi"], status="APPROVE") \
-            .annotate(jumlah_laporan=Count('laporanmateri__materi_id')) \
-            .order_by('-jumlah_laporan') \
-            .distinct()
-        context["materi_diblokir"] = Materi.objects.filter(status="BLOCKED")
+        laporan_materi, materi_dilaporkan, \
+        materi_diblokir = LaporanMateriService.initilize_report()
+        context["laporan_materi"] = laporan_materi
+        context["materi_dilaporkan"] = materi_dilaporkan
+        context["materi_diblokir"] = materi_diblokir
         return self.render_to_response(context=context)
 
 class LaporanMateriDetailView(TemplateView):
@@ -700,4 +563,3 @@ def tolak_laporan(request, *args, **kwargs):
     laporan.save()
 
     return HttpResponseRedirect(ADMINISTRATION_REPORT + str(laporan.materi_id))
-

app/services.py

+import datetime
+import os
+import random
+
+from django.contrib import messages
+from django.contrib.auth.models import AnonymousUser
+from django.core.exceptions import ValidationError
+from django.db.models import Count, Q
+from django.shortcuts import get_object_or_404
+from pydrive.auth import GoogleAuth
+from pydrive.drive import GoogleDrive
+
+from administration.models import VerificationReport
+from app.forms import SuntingProfilForm
+from app.models import Category, Like, LikeComment, DislikeComment, Materi, Comment, Rating, DownloadStatistics, \
+    ViewStatistics
+from app.utils.fileManagementUtil import get_random_filename, remove_image_exifdata
+from digipus import settings
+
+
+class DafterKatalogService:
+
+    @staticmethod
+    def search_materi(get_search, lst_materi, url):
+        url = url + "&search={0}".format(get_search)
+        lst_materi = (
+            lst_materi.search(get_search)
+                .filter(
+                Q(author__icontains=get_search)
+                | Q(uploader__name__icontains=get_search)
+                | Q(descriptions__icontains=get_search)
+                | Q(publisher__icontains=get_search)
+            )
+                .distinct()
+        )
+        return lst_materi, url
+
+    @staticmethod
+    def filter_materi_by_kategori(get_kategori, lst_materi, url):
+        url = url + "&kategori={0}".format(get_kategori)
+        kategori = Category.objects.get(pk=get_kategori)
+        lst_materi = lst_materi.filter(categories=kategori.pk)
+        return lst_materi, url
+
+    @staticmethod
+    def apply_sort(get_sort, lst_materi, url):
+        url = url + "&sort={0}".format(get_sort)
+        if (get_sort == "judul"):
+            lst_materi = lst_materi.order_by('title')
+        elif (get_sort == "penulis"):
+            lst_materi = lst_materi.order_by('author')
+        elif (get_sort == "pengunggah"):
+            lst_materi = lst_materi.order_by('uploader')
+        elif (get_sort == "terbaru"):
+            lst_materi = lst_materi.order_by('-date_created')
+        elif (get_sort == "terlama"):
+            lst_materi = lst_materi.order_by('date_created')
+        elif (get_sort == "terpopuler"):
+            lst_materi = lst_materi.annotate(count=Count('like__id')).order_by('-count')
+        elif (get_sort == "jumlah_unduh"):
+            lst_materi = lst_materi.annotate(count=Count('unduh__id')).order_by('-count')
+        return lst_materi, url
+
+    @staticmethod
+    def apply_options(lst_materi, request, url):
+        should_random = bool(request.GET.get("random"))
+        get_search = request.GET.get("search")
+        if get_search:
+            lst_materi, url = DafterKatalogService.search_materi(get_search, lst_materi, url)
+        get_kategori = request.GET.get("kategori")
+        if get_kategori:
+            lst_materi, url = DafterKatalogService.filter_materi_by_kategori(get_kategori, lst_materi, url)
+        get_sort = request.GET.get("sort")
+        if get_sort:
+            lst_materi, url = DafterKatalogService.apply_sort(get_sort, lst_materi, url)
+        if should_random:
+            lst_materi = DafterKatalogService.apply_random(lst_materi)
+        return lst_materi, url
+
+    @staticmethod
+    def apply_random(lst_materi):
+        return random.sample(list(lst_materi), len(lst_materi))
+
+
+class DetailMateriService:
+
+    @staticmethod
+    def init_context_data(context, materi, session):
+        context["session_id"] = session.session_key
+        context["materi_data"] = materi
+        context["report"] = VerificationReport.objects.filter(materi=materi)
+        context["has_liked"] = Like.objects.filter(materi=materi, session_id=session.session_key).exists()
+
+
+    @staticmethod
+    def set_published_date(materi):
+        published_date = ""
+        if materi.published_date == None:
+            published_date = "n.d"
+        else:
+            published_date = materi.published_date.strftime("%Y-%m-%d %H:%M")
+        return published_date
+
+
+    @staticmethod
+    def init_citation_and_materi_rating(context, materi, published_date, request):
+        citation_apa = materi.author + " . (" + published_date + ") . " + materi.title + " . " + materi.publisher
+        context["citationAPA"] = citation_apa
+        context["citationIEEE"] = CitationService.get_citation_ieee(request, materi)
+        context["materi_rating_score"] = 0
+
+    @staticmethod
+    def find_comment_like_dislike(query_set_for_comment, session):
+        has_liked = {}
+        has_disliked = {}