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admin.py
e3d5dc85a6beissn4frontend

admin.py
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			from django.contrib import admin
			from django import forms

			from datetime import date, datetime
			import re

			from import_export.admin import ImportExportModelAdmin
			from django.contrib.admin import TabularInline
			from django.contrib.admin import SimpleListFilter
			from django.contrib.admin import RelatedOnlyFieldListFilter

			from django.forms.models import BaseInlineFormSet


			from django.utils.translation import gettext_lazy as _

			#from inline_actions.admin import InlineActionsMixin
			#from inline_actions.admin import InlineActionsModelAdminMixin

			from django.shortcuts import render
			from django.http import HttpResponseRedirect

			from django.urls import reverse
			from django.utils.html import escape, mark_safe, format_html

			from .models import Country
			from .models import Language
			from .models import Issn
			from .models import Oa
			from .models import Publisher
			from .models import Journal
			from .models import Organization
			from .models import Version
			from .models import Licence
			from .models import Cost_factor_type
			from .models import Cost_factor
			from .models import Term
			from .models import ConditionType
			from .models import ConditionSet
			from .models import OrganizationCondition
			from .models import JournalCondition


			# Register your models here.

			@admin.register(Issn)
			class IssnAdmin(ImportExportModelAdmin):
			list_filter = ('issn_type', 'journal__publisher__name', )
			list_display = ("id", "issn", 'journal')


			class IssnInline(admin.TabularInline):
			model = Issn
			readonly_fields = ('issn', 'issn_type',)

			# This Inline is stricty read-only for the moment
			def has_change_permission(self, request, obj=None):
			return False

			def has_add_permission(self, request, obj=None):
			return False

			def has_delete_permission(self, request, obj=None):
			return False


			@admin.register(Journal)
			class JournalAdmin(ImportExportModelAdmin):
			list_display = ("id", "name", "get_journal_issns",)
			list_filter = ('publisher__name', 'oa_status')
			filter_horizontal = ('publisher', 'language', )
			search_fields = ('name', 'classIssn__issn')
			inlines = (IssnInline, )

			def get_journal_issns(self, obj):
			return list(Issn.objects.filter(journal=obj))
			get_journal_issns.short_description = 'ISSNs'


			@admin.register(Language)
			class LanguageAdmin(ImportExportModelAdmin):
			pass


			@admin.register(Organization)
			class OrganizationAdmin(ImportExportModelAdmin):
			list_display = ("id", "name")
			list_filter = ('is_funder',)
			filter_horizontal = ('country', )
			search_fields = ('name', )


			@admin.register(Version)
			class VersionAdmin(ImportExportModelAdmin):
			pass


			@admin.register(Country)
			class CountryAdmin(ImportExportModelAdmin):
			pass


			@admin.register(Oa)
			class OaAdmin(ImportExportModelAdmin):
			pass


			@admin.register(Publisher)
			class PublisherAdmin(ImportExportModelAdmin):
			list_display = ("id", "name")
			# Experimental: what will happen with 200+ countries in the database?
			list_filter = ('country__name', )
			filter_horizontal = ('country', )


			@admin.register(Term)
			class TermAdmin(ImportExportModelAdmin):
			list_display = ("id", "__str__", )
			list_filter = ('version', 'licence', 'ir_archiving')
			filter_horizontal = ('version', 'cost_factor', 'licence', )

			# textarea input is better for comments
			def get_form(self, request, obj=None, **kwargs):
			kwargs['widgets'] = {'comment': forms.Textarea}
			return super().get_form(request, obj, **kwargs)


			@admin.register(ConditionType)
			class ConditionTypeAdmin(ImportExportModelAdmin):
			list_display = ("id", "condition_issuer")


			class JournalConditionFormset(forms.BaseInlineFormSet):
			def __init__(self, args, *kwargs):
			super(JournalConditionFormset, self).__init__(args, *kwargs)
			self.queryset = self.queryset.select_related("journal", 'condition_set')


			#class JournalConditionInline(InlineActionsMixin, TabularInline):
			class JournalConditionInline(TabularInline):
			model = JournalCondition
			fields = ('journal', 'valid_from', 'valid_until')
			extra = 1
			inline_actions = ['connect_all_journals']
			autocomplete_fields = ('journal', )
			formset = JournalConditionFormset

			def connect_all_journals(self, request, obj, parent_obj=None):
			# Do stuff here, then return None to go to current view
			return None

			connect_all_journals.short_description = ("Connect Condition Set with some or all Journals")

			def get_queryset(self, request):
			qs = super(JournalConditionInline, self).get_queryset(request).prefetch_related()
			return qs.select_related('journal')


			class OrganizationConditionFormset(forms.BaseInlineFormSet):
			def __init__(self, args, *kwargs):
			super(OrganizationConditionFormset, self).__init__(args, *kwargs)
			self.queryset = self.queryset.select_related("organization", 'condition_set')


			class OrganizationConditionInline(TabularInline):
			#class OrganizationConditionInline(InlineActionsMixin, TabularInline):
			# model = OrganizationCondition
			model = ConditionSet.organization.through
			extra = 1
			autocomplete_fields = ('organization', )
			formset = OrganizationConditionFormset


			@admin.action(description='Apply selected condition sets to multiple Journals')
			def connect_with_all_journals(modeladmin, request, queryset):
			# print(request.POST)
			if request.POST.get('apply'):
			try:
			valid_from = date.fromisoformat(request.POST['valid_from'])
			valid_until = date.fromisoformat(request.POST['valid_until'])
			issn_list = set([x for x in re.split(' \|,\|;\|\n\|\r\|\t', request.POST['issn_list']) if len(x) > 0])
			print(issn_list)
			if valid_from > valid_until:
			raise ValueError
			# print((valid_from, valid_until))
			if len(issn_list) == 0:
			all_journals = Journal.objects.all()
			else:
			journal_ids = list(Issn.objects.filter(issn__in=issn_list).values_list('journal', flat=True).distinct())
			# print(journal_ids)
			all_journals = Journal.objects.filter(id__in=journal_ids)
			print(all_journals)
			print(len(issn_list), len(all_journals))
			# all_journals =[]
			# The following block could certainly be optimized! AB 2021-08-12
			for condition_set in queryset:
			# print('-----------------')
			# print(condition_set)
			for j in all_journals:
			# print(j)
			# search for existing connections
			existing_connections = JournalCondition.objects.filter(journal=j,
			condition_set=condition_set,
			valid_from__lt=date.today(),
			valid_until__gt=date.today())
			# print(existing_connections)
			if len(existing_connections) == 0:
			new_journal_condition = JournalCondition(journal=j,
			condition_set=condition_set,
			valid_from=valid_from,
			valid_until=valid_until)
			new_journal_condition.save()
			else:
			# This should not happen, or could it?
			print(f'{j} already connected with {condition_set}')
			return None

			except ValueError:
			pass
			return render(request, 'admin/get_validity_dates.html', context={'queryset': queryset, 'objects': 'journals'})


			@admin.action(description='Apply selected condition sets to all Organizations')
			def connect_with_all_organizations(modeladmin, request, queryset):
			if request.POST.get('apply'):
			try:
			valid_from = date.fromisoformat(request.POST['valid_from'])
			valid_until = date.fromisoformat(request.POST['valid_until'])
			if valid_from > valid_until:
			raise ValueError
			# print((valid_from, valid_until))
			all_orgs = Organization.objects.all()
			for condition_set in queryset:
			# print('-----------------')
			# print(condition_set)
			for o in all_orgs:
			# print(o)
			# search for existing connections
			existing_connections = OrganizationCondition.objects.filter(organization=o,
			condition_set=condition_set,
			valid_from__lt=date.today(),
			valid_until__gt=date.today())
			# print(existing_connections)
			if len(existing_connections) == 0:
			new_organization_condition = OrganizationCondition(organization=o,
			condition_set=condition_set,
			valid_from=valid_from,
			valid_until=valid_until)
			new_organization_condition.save()
			return None

			except ValueError:
			pass
			return render(request, 'admin/get_validity_dates.html', context={'queryset': queryset, 'objects': 'organizations'})


			@admin.action(description='Set valid_until date')
			def end_validity(modeladmin, request, queryset):
			# print(request.POST)
			if request.POST.get('apply'):
			try:
			valid_until = date.fromisoformat(request.POST['date'])
			print(valid_until)

			for x_condition in queryset:
			x_condition.valid_until = valid_until
			x_condition.save()
			return None

			except ValueError:
			pass
			return render(request, 'admin/get_single_validity_date.html',
			context={'queryset': queryset, 'limit': 'end', 'objects': 'selected journal-condition connections'})


			class ConditionSetAdminForm(forms.ModelForm):
			class Meta:
			model = ConditionSet
			fields = ['condition_type', 'term', 'source', 'comment', ]

			def __init__(self, args, *kwargs):
			#start = datetime.now()
			super(ConditionSetAdminForm, self).__init__(args, *kwargs)
			self.fields['term'].queryset = Term.objects.all().prefetch_related('licence', 'cost_factor', 'version')
			#print('ConditionSetAdminForm.__init__(): ', datetime.now(), datetime.now()-start)


			@admin.register(ConditionSet)
			class ConditionSetAdmin(ImportExportModelAdmin):
			# class ConditionSetAdmin(InlineActionsModelAdminMixin, ImportExportModelAdmin):
			list_display = ("id", "condition_type", "comment")
			search_fields = ['organization__name', 'journal__name', 'comment']
			list_filter = ('condition_type', )
			form = ConditionSetAdminForm
			filter_horizontal = ('term', )
			exclude = ('organization', 'journal', )
			inlines = (OrganizationConditionInline, JournalConditionInline, )
			# inlines = (OrganizationConditionInline, )
			actions = [connect_with_all_journals, connect_with_all_organizations]

			# textarea input is better for comments
			def get_form(self, request, obj=None, **kwargs):
			kwargs['widgets'] = {'comment': forms.Textarea}
			return super().get_form(request, obj, **kwargs)

			def get_queryset(self, request):
			#start = datetime.now()
			test_model_qs = super(ConditionSetAdmin, self).get_queryset(request)
			test_model_qs = test_model_qs.prefetch_related('organization', 'journal')
			#print('ConditionSetAdmin.get_queryset(): ', datetime.now(), datetime.now()-start)
			return test_model_qs


			class XConditionValidListFilter(SimpleListFilter):
			# Human-readable title which will be displayed in the
			# right admin sidebar just above the filter options.
			title = _('currently valid')

			# Parameter for the filter that will be used in the URL query.
			parameter_name = 'valid'

			def lookups(self, request, model_admin):
			"""
			Returns a list of tuples. The first element in each
			tuple is the coded value for the option that will
			appear in the URL query. The second element is the
			human-readable name for the option that will appear
			in the right sidebar.
			"""
			return (
			('true', _('True')),
			('false', _('False')),
			)

			def queryset(self, request, queryset):
			"""
			Returns the filtered queryset based on the value
			provided in the query string and retrievable via
			`self.value()`.
			"""
			# Compare the requested value (either '80s' or '90s')
			# to decide how to filter the queryset.
			if self.value() == 'true':
			return queryset.filter(valid_from__lte=date.today(),
			valid_until__gte=date.today())
			if self.value() == 'false':
			return queryset.exclude(valid_from__lte=date.today(),
			valid_until__gte=date.today())


			class ConditionSetListDynamicFilter(SimpleListFilter):
			title = _('condition sets (publisher-dependant)')

			parameter_name = 'condition_set'

			def lookups(self, request, model_admin):
			if 'journal__publisher__name' in request.GET:
			# A publisher name filter is in effect
			journal_publisher_name = request.GET['journal__publisher__name']
			condition_sets = set([c.condition_set for c in model_admin.model.objects.all().filter(journal__publisher__name=journal_publisher_name)])
			else:
			condition_sets = set([c.condition_set for c in model_admin.model.objects.all()])
			return [(s.id, str(s)) for s in condition_sets]

			def queryset(self, request, queryset):
			if self.value():
			return queryset.filter(condition_set__id__exact=self.value())


			@admin.register(OrganizationCondition)
			class OrganizationConditionAdmin(ImportExportModelAdmin):

			def link_to_conditionset(self, obj):
			link = reverse("admin:django_api_conditionset_change", args=[obj.condition_set.id])
			return format_html(f'<a href="{link}">{obj.condition_set}</a>')
			link_to_conditionset.short_description = 'Condition Set'

			list_display = ("id", "organization_name", "link_to_conditionset", "valid_from", "valid_until")
			list_filter = ('condition_set__condition_type', XConditionValidListFilter,
			('condition_set', RelatedOnlyFieldListFilter))

			def organization_name(self, obj):
			return obj.organization.name


			@admin.register(Licence)
			class LicenceAdmin(ImportExportModelAdmin):
			pass


			@admin.register(JournalCondition)
			class JournalConditionAdmin(ImportExportModelAdmin):

			def link_to_conditionset(self, obj):
			link = reverse("admin:django_api_conditionset_change", args=[obj.condition_set.id])
			return format_html(f'<a href="{link}">{obj.condition_set}</a>')
			link_to_conditionset.short_description = 'Condition Set'

			list_display = ("id", "journal_name", "link_to_conditionset", "valid_from", "valid_until")
			list_filter = ('condition_set__condition_type', XConditionValidListFilter,
			'journal__publisher__name',
			ConditionSetListDynamicFilter)
			actions = (end_validity, )

			def journal_name(self, obj):
			return obj.journal.name

			# unsuccessful attempt
			# def formfield_for_foreignkey(self, db_field, request, **kwargs):
			# if db_field.name == "journal":
			# kwargs["queryset"] = Journal.objects.filter(publisher__name__in=Publisher.objects.order_by().values('name').distinct())
			# return super().formfield_for_foreignkey(db_field, request, **kwargs)


			@admin.register(Cost_factor)
			class Cost_factorAdmin(ImportExportModelAdmin):
			list_display = ("id", "comment", "amount", "symbol")
			list_filter = ('cost_factor_type', 'symbol')

			# textarea input is better for comments
			def get_form(self, request, obj=None, **kwargs):
			kwargs['widgets'] = {'comment': forms.Textarea}
			return super().get_form(request, obj, **kwargs)


			@admin.register(Cost_factor_type)
			class Cost_factor_typeAdmin(ImportExportModelAdmin):
			list_display = ("id", "name")

rOACCT/django_api/admin.pye3d5dc85a6beissn4frontend

admin.pyView Options

rOACCT/django_api/admin.py
e3d5dc85a6beissn4frontend

admin.py
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