finance: add initial structre, including models and admin page, add some customization

jdav_web/finance/admin.py

@@ -0,0 +1,152 @@
+from django.contrib import admin, messages
+from django.forms import Textarea
+from django.http import HttpResponse, HttpResponseRedirect
+from django.db.models import TextField
+from django.urls import path, reverse
+from functools import update_wrapper
+from django.utils.translation import gettext_lazy as _
+from django.shortcuts import render
+
+from .models import Ledger, Statement, Receipt, Transaction, Bill, StatementSubmitted
+
+@admin.register(Ledger)
+class LedgerAdmin(admin.ModelAdmin):
+    pass
+
+
+class BillOnStatementInline(admin.TabularInline):
+    model = Bill
+    extra = 0
+    sortable_options = []
+    fields = ['short_description', 'explanation', 'amount', 'paid_by', 'proof']
+    formfield_overrides = {
+        TextField: {'widget': Textarea(attrs={'rows': 1, 'cols': 40})}
+    }
+
+    def get_readonly_fields(self, request, obj=None):
+        if obj is not None and obj.submitted:
+            return self.fields
+        return super(BillOnStatementInline, self).get_readonly_fields(request, obj)
+
+
+@admin.register(Statement)
+class StatementAdmin(admin.ModelAdmin):
+    fields = ['short_description', 'explanation', 'excursion', 'submitted']
+    inlines = [BillOnStatementInline]
+
+    def get_readonly_fields(self, request, obj=None):
+        readonly_fields = ['submitted']
+        if obj is not None and obj.submitted:
+            return readonly_fields + self.fields
+        else:
+            return readonly_fields
+
+    def get_urls(self):
+        urls = super().get_urls()
+
+        def wrap(view):
+            def wrapper(*args, **kwargs):
+                return self.admin_site.admin_view(view)(*args, **kwargs)
+
+            wrapper.model_admin = self
+            return update_wrapper(wrapper, view)
+
+        custom_urls = [
+            path(
+                "<path:object_id>/submit/",
+                wrap(self.submit_view),
+                name="%s_%s_submit" % (self.opts.app_label, self.opts.model_name),
+            ),
+        ]
+        return custom_urls + urls
+
+    def submit_view(self, request, object_id):
+        statement = Statement.objects.get(pk=object_id)
+        if statement.submitted:
+            messages.error(request,
+                    _("%(name)s is already submitted.") % {'name': str(statement)})
+            return HttpResponseRedirect(reverse('admin:%s_%s_change' % (statement._meta.app_label, statement._meta.model_name), args=(statement.pk,)))
+
+        if "apply" in request.POST:
+            statement.submit()
+            messages.success(request,
+                    _("Successfully submited %(name)s. The finance department will notify the requestors as soon as possible.") % {'name': str(statement)})
+            return HttpResponseRedirect(reverse('admin:%s_%s_change' % (statement._meta.app_label, statement._meta.model_name), args=(statement.pk,)))
+        context = dict(self.admin_site.each_context(request),
+                       title=_('Submit statement'),
+                       opts=self.opts,
+                       statement=statement)
+        
+        return render(request, 'admin/submit_statement.html', context=context)
+
+
+@admin.register(StatementSubmitted)
+class StatementSubmittedAdmin(admin.ModelAdmin):
+    fields = ['short_description', 'explanation', 'excursion', 'submitted']
+    inlines = [BillOnStatementInline]
+
+    def has_add_permission(self, request, obj=None):
+        return False
+
+    def get_readonly_fields(self, request, obj=None):
+        readonly_fields = ['submitted']
+        if obj is not None and obj.submitted:
+            return readonly_fields + self.fields
+        else:
+            return readonly_fields
+
+    def get_urls(self):
+        urls = super().get_urls()
+
+        def wrap(view):
+            def wrapper(*args, **kwargs):
+                return self.admin_site.admin_view(view)(*args, **kwargs)
+
+            wrapper.model_admin = self
+            return update_wrapper(wrapper, view)
+
+        custom_urls = [
+            path(
+                "<path:object_id>/overview/",
+                wrap(self.overview_view),
+                name="%s_%s_overview" % (self.opts.app_label, self.opts.model_name),
+            ),
+        ]
+        return custom_urls + urls
+
+    def overview_view(self, request, object_id):
+        statement = Statement.objects.get(pk=object_id)
+        if not statement.submitted:
+            messages.error(request,
+                    _("%(name)s is not yet submitted.") % {'name': str(statement)})
+            return HttpResponseRedirect(reverse('admin:%s_%s_change' % (self.opts.app_label, self.opts.model_name), args=(statement.pk,)))
+
+        if "apply" in request.POST:
+            #statement.submit()
+            #messages.success(request,
+            #        _("Successfully submited %(name)s. The finance department will notify the requestors as soon as possible.") % {'name': str(statement)})
+            return HttpResponseRedirect(reverse('admin:%s_%s_change' % (self.opts.app_label, self.opts.model_name), args=(statement.pk,)))
+        context = dict(self.admin_site.each_context(request),
+                       title=_('View submitted statement'),
+                       opts=self.opts,
+                       statement=statement,
+                       total_bills=statement.total_bills(),
+                       total_transportation=statement.total_transportation(),
+                       total=statement.total())
+        
+        return render(request, 'admin/overview_submitted_statement.html', context=context)
+
+
+@admin.register(Receipt)
+class ReceiptAdmin(admin.ModelAdmin):
+    pass
+
+
+@admin.register(Transaction)
+class TransactionAdmin(admin.ModelAdmin):
+    pass
+
+
+@admin.register(Bill)
+class BillAdmin(admin.ModelAdmin):
+    list_display = ['short_description', 'pretty_amount', 'paid_by', 'refunded']

jdav_web/finance/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class FinanceConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'finance'

jdav_web/finance/models.py

@@ -0,0 +1,105 @@
+from django.db import models
+from django.utils.translation import gettext_lazy as _
+from members.models import Member, Freizeit
+
+# Create your models here.
+
+class Ledger(models.Model):
+    name = models.CharField(verbose_name=_('Name'), max_length=30)
+
+    def __str__(self):
+        return self.name
+
+
+class Statement(models.Model):
+    short_description = models.CharField(verbose_name=_('Short description'),
+                                         max_length=30,
+                                         blank=True)
+    explanation = models.TextField(verbose_name=_('Explanation'), blank=True)
+
+    excursion = models.OneToOneField(Freizeit, verbose_name=_('Associated excursion'),
+                                     blank=True,
+                                     null=True,
+                                     on_delete=models.SET_NULL)
+
+    submitted = models.BooleanField(verbose_name=_('Submitted'), default=False)
+
+    class Meta:
+        permissions = [('may_edit_submitted_statements', 'Is allowed to edit submitted statements')]
+
+    def __str__(self):
+        if self.excursion is not None:
+            return _('Statement: %(excursion)s') % {'excursion': str(self.excursion)}
+        else:
+            return self.short_description
+
+    def submit(self):
+        self.submitted = True
+        self.save()
+
+    def total_bills(self):
+        return sum([bill.amount for bill in self.bill_set.all()])
+
+    def total_transportation(self):
+        if self.excursion is None:
+            return 0
+
+        exc = self.excursion
+        return exc.kilometers_traveled * 0.2
+
+    def total(self):
+        return float(self.total_bills()) + self.total_transportation()
+
+
+class StatementSubmittedManager(models.Manager):
+    def get_queryset(self):
+        return super().get_queryset().filter(submitted=True)
+
+
+class StatementSubmitted(Statement):
+    objects = StatementSubmittedManager()
+
+    class Meta:
+        proxy = True
+        verbose_name = _('Submitted statement')
+        verbose_name_plural = _('Submitted statements')
+        permissions = (('may_manage_submitted_statements', 'Can view and manage submitted statements.'),)
+
+class Bill(models.Model):
+    statement = models.ForeignKey(Statement, verbose_name=_('Statement'),
+                                  on_delete=models.CASCADE)
+    short_description = models.CharField(verbose_name=_('Short description'), max_length=30)
+    explanation = models.TextField(verbose_name=_('Explanation'), blank=True)
+
+    amount = models.DecimalField(max_digits=6, decimal_places=2, default=0)
+    paid_by = models.ForeignKey(Member, verbose_name=_('Paid by'), null=True,
+                                on_delete=models.SET_NULL)
+    refunded = models.BooleanField(verbose_name=_('Refunded'), default=False)
+
+    proof = models.ImageField(_('Proof'), upload_to='bill_images', blank=True)
+
+    def __str__(self):
+        return "{} ({}€)".format(self.short_description, self.amount)
+
+    def pretty_amount(self):
+        return "{} €".format(self.amount)
+    pretty_amount.admin_order_field = 'amount'
+
+
+class Transaction(models.Model):
+    amount = models.DecimalField(max_digits=6, decimal_places=2)
+    member = models.ForeignKey(Member, verbose_name=_('Recipient'),
+                               on_delete=models.CASCADE)
+
+    statement = models.ForeignKey(Statement, verbose_name=_('Statement'),
+                                  on_delete=models.CASCADE)
+
+    confirmed = models.BooleanField(verbose_name=_('Confirmed'))
+
+
+class Receipt(models.Model):
+    short_description = models.CharField(verbose_name=_('Short description'), max_length=30)
+    ledger = models.ForeignKey(Ledger, blank=False, null=False, verbose_name=_('Ledger'),
+                               on_delete=models.CASCADE)
+    amount = models.DecimalField(max_digits=6, decimal_places=2)
+    comments = models.TextField()

jdav_web/finance/templates/admin/overview_submitted_statement.html

@@ -0,0 +1,55 @@
+{% extends "admin/base_site.html" %}
+{% load i18n admin_urls static %}
+
+{% block extrahead %}
+    {{ block.super }}
+    {{ media }}
+    <script src="{% static 'admin/js/cancel.js' %}" async></script>
+    <script type="text/javascript" src="{% static "admin/js/vendor/jquery/jquery.js" %}"></script>
+    <script type="text/javascript" src="{% static "admin/js/jquery.init.js" %}"></script>
+{% endblock %}
+
+{% block bodyclass %}{{ block.super }} app-{{ opts.app_label }} model-{{ opts.model_name }} invite-waiter
+{% endblock %}
+
+{% block breadcrumbs %}
+<div class="breadcrumbs">
+<a href="{% url 'admin:index' %}">{% translate 'Home' %}</a>
+&rsaquo; <a href="{% url 'admin:app_list' app_label=opts.app_label %}">{{ opts.app_config.verbose_name }}</a>
+&rsaquo; <a href="{% url opts|admin_urlname:'changelist' %}">{{ opts.verbose_name_plural|capfirst }}</a>
+&rsaquo; <a href="{% url opts|admin_urlname:'change' statement.pk|admin_urlquote %}">{{ statement|truncatewords:"18" }}</a>
+&rsaquo; {% translate 'Submit' %}
+</div>
+{% endblock %}
+
+{% block content %}
+<h2>{% translate "Overview" %}</h2>
+
+<ul>
+    {% for bill in statement.bill_set.all %}
+        <li>
+            {{bill.short_description}}
+        </li>
+    {% endfor %}
+</ul>
+
+<p>{% blocktrans %}The total amount is {{total_bills}} €.{% endblocktrans %}</p>
+
+{% if statement.excursion %}
+
+<h3>{% trans "Excursion" %}</h3>
+<p>{% blocktrans %}Total distance traveled: {{ statement.excursion.kilometers_traveled }} km by
+{{ statement.excursion.tour_approach }}. This results in {{ total_transportation }} €.{% endblocktrans %}
+</p>
+
+{% endif %}
+
+{% blocktrans %} This results in a total amount of {{ total }} € {% endblocktrans %}
+
+<form action="" method="post">
+    {% csrf_token %}
+    <input type="hidden" name="action" value="submit_statement">
+    <input class="default" style="color: $default-link-color" type="submit" name="apply" value="{% translate 'Submit' %}">
+    <a href="#" class="button cancel-link">{% translate "Cancel" %}</a>
+</form>
+{% endblock %}

jdav_web/finance/templates/admin/submit_statement.html

@@ -0,0 +1,37 @@
+{% extends "admin/base_site.html" %}
+{% load i18n admin_urls static %}
+
+{% block extrahead %}
+    {{ block.super }}
+    {{ media }}
+    <script src="{% static 'admin/js/cancel.js' %}" async></script>
+    <script type="text/javascript" src="{% static "admin/js/vendor/jquery/jquery.js" %}"></script>
+    <script type="text/javascript" src="{% static "admin/js/jquery.init.js" %}"></script>
+{% endblock %}
+
+{% block bodyclass %}{{ block.super }} app-{{ opts.app_label }} model-{{ opts.model_name }} invite-waiter
+{% endblock %}
+
+{% block breadcrumbs %}
+<div class="breadcrumbs">
+<a href="{% url 'admin:index' %}">{% translate 'Home' %}</a>
+&rsaquo; <a href="{% url 'admin:app_list' app_label=opts.app_label %}">{{ opts.app_config.verbose_name }}</a>
+&rsaquo; <a href="{% url opts|admin_urlname:'changelist' %}">{{ opts.verbose_name_plural|capfirst }}</a>
+&rsaquo; <a href="{% url opts|admin_urlname:'change' statement.pk|admin_urlquote %}">{{ statement|truncatewords:"18" }}</a>
+&rsaquo; {% translate 'Submit' %}
+</div>
+{% endblock %}
+
+{% block content %}
+<h2>{% translate "Submit to the finance department" %}</h2>
+<p>
+{% trans "Do you want to submit the statement for further processing by the finance department? If you proceed, no further changes to the statement are possible." %}
+</p>
+
+<form action="" method="post">
+    {% csrf_token %}
+    <input type="hidden" name="action" value="submit_statement">
+    <input class="default" style="color: $default-link-color" type="submit" name="apply" value="{% translate 'Submit' %}">
+    <a href="#" class="button cancel-link">{% translate "Cancel" %}</a>
+</form>
+{% endblock %}

jdav_web/finance/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

jdav_web/finance/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.

jdav_web/jdav_web/settings.py

@@ -55,9 +55,11 @@ INSTALLED_APPS = [
     'material.apps.MaterialConfig',
     'members.apps.MembersConfig',
     'mailer.apps.MailerConfig',
+    'finance.apps.FinanceConfig',
     'ludwigsburgalpin.apps.LudwigsburgalpinConfig',
     #'easy_select2',
     'djcelery_email',
+    'nested_admin',
     'django_celery_beat',
     'jet',
     'django.contrib.admin',
@@ -199,44 +201,44 @@ JET_SIDE_MENU_COMPACT = True
 JET_DEFAULT_THEME = 'jdav-green'
 JET_CHANGE_FORM_SIBLING_LINKS = False
 
-JET_SIDE_MENU_ITEMS = [
+#JET_SIDE_MENU_ITEMS = [
-    {'app_label': 'auth', 'permissions': ['auth'], 'items': [
+#    {'app_label': 'auth', 'permissions': ['auth'], 'items': [
-        {'name': 'group', 'permissions': ['auth.group'] },
+#        {'name': 'group', 'permissions': ['auth.group'] },
-        {'name': 'user', 'permissions': ['auth.user']},
+#        {'name': 'user', 'permissions': ['auth.user']},
-    ]},
+#    ]},
-    {'app_label': 'django_celery_beat', 'permissions': ['django_celery_beat'], 'items': [
+#    {'app_label': 'django_celery_beat', 'permissions': ['django_celery_beat'], 'items': [
-        {'name': 'crontabschedule'},
+#        {'name': 'crontabschedule'},
-        {'name': 'clockedschedule'},
+#        {'name': 'clockedschedule'},
-        {'name': 'intervalschedule'},
+#        {'name': 'intervalschedule'},
-        {'name': 'periodictask'},
+#        {'name': 'periodictask'},
-        {'name': 'solarschedule'},
+#        {'name': 'solarschedule'},
-    ]},
+#    ]},
-    {'app_label': 'ludwigsburgalpin', 'permissions': ['ludwigsburgalpin'], 'items': [
+#    {'app_label': 'ludwigsburgalpin', 'permissions': ['ludwigsburgalpin'], 'items': [
-        {'name': 'termin'},
+#        {'name': 'termin'},
-    ]},
+#    ]},
-    {'app_label': 'mailer', 'items': [
+#    {'app_label': 'mailer', 'items': [
-        {'name': 'message'},
+#        {'name': 'message'},
-        {'name': 'emailaddress'},
+#        {'name': 'emailaddress'},
-    ]},
+#    ]},
-    {'app_label': 'members', 'items': [
+#    {'app_label': 'members', 'items': [
-        {'name': 'member'},
+#        {'name': 'member'},
-        {'name': 'group'},
+#        {'name': 'group'},
-        {'name': 'memberlist', 'permissions': ['members.view_memberlist']},
+#        {'name': 'memberlist', 'permissions': ['members.view_memberlist']},
-        {'name': 'membernotelist'},
+#        {'name': 'membernotelist'},
-        {'name': 'freizeit'},
+#        {'name': 'freizeit'},
-        {'name': 'klettertreff'},
+#        {'name': 'klettertreff'},
-        {'name': 'activitycategory', 'permissions': ['members.view_activitycategory']},
+#        {'name': 'activitycategory', 'permissions': ['members.view_activitycategory']},
-        {'name': 'memberunconfirmedproxy', 'permissions': ['members.view_memberunconfirmedproxy']},
+#        {'name': 'memberunconfirmedproxy', 'permissions': ['members.view_memberunconfirmedproxy']},
-        {'name': 'memberwaitinglist', 'permissions': ['members.view_memberwaitinglist']},
+#        {'name': 'memberwaitinglist', 'permissions': ['members.view_memberwaitinglist']},
-    ]},
+#    ]},
-    {'app_label': 'material', 'items': [
+#    {'app_label': 'material', 'items': [
-        {'name': 'materialcategory', 'permissions': ['material.view_materialcategory']},
+#        {'name': 'materialcategory', 'permissions': ['material.view_materialcategory']},
-        {'name': 'materialpart'},
+#        {'name': 'materialpart'},
-    ]},
+#    ]},
-    {'label': 'Externe Links', 'items' : [
+#    {'label': 'Externe Links', 'items' : [
-        { 'label': 'Packlisten und Co.', 'url': 'https://cloud.jdav-ludwigsburg.de/index.php/s/qxQCTR8JqYSXXCQ'}
+#        { 'label': 'Packlisten und Co.', 'url': 'https://cloud.jdav-ludwigsburg.de/index.php/s/qxQCTR8JqYSXXCQ'}
-    ]},
+#    ]},
-]
+#]
 
 # Waiting list configuration parameters, all numbers are in days
 

jdav_web/jdav_web/urls.py

@@ -35,6 +35,7 @@ urlpatterns += i18n_patterns(
     re_path(r'^LBAlpin/Programm(/)?(20)?[0-9]{0,2}', include('ludwigsburgalpin.urls',
             namespace="ludwigsburgalpin")),
     re_path(r'^$', include('startpage.urls', namespace="startpage")),
+    re_path(r'^_nested_admin/', include('nested_admin.urls')),
 )
 
 # TODO: django serving from MEDIA_URL should be disabled in production stage

jdav_web/members/admin.py

@@ -23,10 +23,13 @@ from django.db.models import TextField, ManyToManyField, ForeignKey, Count,\
 from django.forms import Textarea, RadioSelect, TypedChoiceField
 from django.shortcuts import render
 
+import nested_admin
+
 from .models import (Member, Group, Freizeit, MemberNoteList, NewMemberOnList, Klettertreff,
-                     MemberWaitingList,
+                     MemberWaitingList, LJPProposal, Intervention,
                      KlettertreffAttendee, ActivityCategory, OldMemberOnList, MemberList,
                      annotate_activity_score, RegistrationPassword, MemberUnconfirmedProxy)
+from finance.models import Statement, Bill
 from mailer.mailutils import send as send_mail, get_echo_link, mail_root
 from django.conf import settings
 #from easy_select2 import apply_select2
@@ -74,7 +77,7 @@ class RegistrationFilter(admin.SimpleListFilter):
 # Register your models here.
 class MemberAdmin(admin.ModelAdmin):
     fields = ['prename', 'lastname', 'email', 'email_parents', 'cc_email_parents', 'street', 'plz',
-              'town', 'phone_number', 'phone_number_parents', 'birth_date', 'group',
+              'town', 'phone_number', 'phone_number_parents', 'birth_date', 'group', 'iban',
               'gets_newsletter', 'registered', 'registration_form', 'active', 'echoed', 'comments']
     list_display = ('name', 'birth_date', 'age', 'get_group', 'gets_newsletter',
                     'registered', 'active', 'echoed', 'comments', 'activity_score')
@@ -386,7 +389,7 @@ class FreizeitAdminForm(forms.ModelForm):
                                  label=_('Tour type'))
     tour_approach = TypedChoiceField(choices=Freizeit.tour_approach_choices,
                                  coerce=int,
-                                 label=_('Tour type'))
+                                 label=_('Means of transportation'))
 
     class Meta:
         model = Freizeit
@@ -398,13 +401,47 @@ class FreizeitAdminForm(forms.ModelForm):
         #self.fields['add_member'].queryset = Member.objects.filter(prename__startswith='F')
 
 
+class BillOnStatementInline(admin.TabularInline):
+    model = Bill
+    extra = 0
+    sortable_options = []
+    fields = ['short_description', 'explanation', 'amount', 'paid_by', 'proof']
+    formfield_overrides = {
+        TextField: {'widget': Textarea(attrs={'rows': 1, 'cols': 40})}
+    }
+
+
+class StatementOnListInline(nested_admin.NestedStackedInline):
+    model = Statement
+    extra = 1
+    sortable_options = []
+    fields = ['explanation']
+    inlines = [BillOnStatementInline]
+
+
+class InterventionOnLJPInline(admin.TabularInline):
+    model = Intervention
+    extra = 0
+    sortable_options = []
+    formfield_overrides = {
+        TextField: {'widget': Textarea(attrs={'rows': 1, 'cols': 80})}
+    }
+
+
+class LJPOnListInline(nested_admin.NestedStackedInline):
+    model = LJPProposal
+    extra = 1
+    sortable_options = []
+    inlines = [InterventionOnLJPInline]
+
+
 class MemberOnListInline(GenericTabularInline):
     model = NewMemberOnList
     extra = 0
     formfield_overrides = {
-        TextField: {'widget': Textarea(attrs={'rows': 1,
+        TextField: {'widget': Textarea(attrs={'rows': 1, 'cols': 40})}
-                                              'cols': 40})}
     }
+    sortable_options = []
 
 
 class OldMemberOnListInline(admin.TabularInline):
@@ -543,8 +580,8 @@ class MemberListAdmin(admin.ModelAdmin):
         messages.info(request, "Teilnehmerlist(en) erfolgreich erstellt.")
     migrate_to_notelist.short_description = "Aus Teilnehmerliste(n) Notizliste erstellen"
 
-class FreizeitAdmin(admin.ModelAdmin):
+class FreizeitAdmin(nested_admin.NestedModelAdmin):
-    inlines = [MemberOnListInline]
+    inlines = [MemberOnListInline, LJPOnListInline, StatementOnListInline]
     form = FreizeitAdminForm
     list_display = ['__str__', 'date']
     search_fields = ('name',)

jdav_web/members/models.py

@@ -14,6 +14,7 @@ from mailer.mailutils import send as send_mail, mail_root, get_mail_confirmation
     prepend_base_url, get_registration_link, get_wait_confirmation_link
 from django.contrib.auth.models import User
 from django.conf import settings
+from django.core.validators import MinValueValidator
 
 from dateutil.relativedelta import relativedelta
 
@@ -160,6 +161,8 @@ class Member(Person):
     phone_number_parents = models.CharField(max_length=18, verbose_name=_('parents phone number'), default='', blank=True)
     group = models.ManyToManyField(Group, verbose_name=_('group'))
 
+    iban = models.CharField(max_length=30, blank=True, verbose_name='IBAN')
+
     gets_newsletter = models.BooleanField(_('receives newsletter'),
                                           default=True)
     unsubscribe_key = models.CharField(max_length=32, default="")
@@ -517,10 +520,13 @@ class Freizeit(models.Model):
     # verbose_name is overriden by form, label is set in admin.py
     tour_type = models.IntegerField(choices=tour_type_choices)
     tour_approach_choices = ((MUSKELKRAFT_ANREISE, 'Muskelkraft'),
-                         (OEFFENTLICHE_ANREISE, 'Öffentliche VM'),
+                             (OEFFENTLICHE_ANREISE, 'ÖPNV'),
                              (FAHRGEMEINSCHAFT_ANREISE, 'Fahrgemeinschaften'))
     tour_approach = models.IntegerField(choices=tour_approach_choices,
-                                        default=MUSKELKRAFT_ANREISE)
+                                        default=MUSKELKRAFT_ANREISE,
+                                        verbose_name=_('Means of transportation'))
+    kilometers_traveled = models.IntegerField(verbose_name=_('Kilometers traveled'),
+                                              validators=[MinValueValidator(0)])
     activity = models.ManyToManyField(ActivityCategory, default=None,
                                       verbose_name=_('Categories'))
     difficulty_choices = [(1, _('easy')), (2, _('medium')), (3, _('hard'))]
@@ -634,6 +640,37 @@ class RegistrationPassword(models.Model):
         verbose_name_plural = _('registration passwords')
 
 
+class LJPProposal(models.Model):
+    """A proposal for LJP"""
+    title = models.CharField(verbose_name=_('Title'), max_length=30)
+
+    goals_alpinistic = models.TextField(verbose_name=_('Alpinistic goals'))
+    goals_pedagogic = models.TextField(verbose_name=_('Pedagogic goals'))
+    methods = models.TextField(verbose_name=_('Content and methods'))
+    evaluation = models.TextField(verbose_name=_('Evaluation'))
+    experiences = models.TextField(verbose_name=_('Experiences and possible improvements'))
+
+    excursion = models.OneToOneField(Freizeit,
+                                     verbose_name=_('Excursion'),
+                                     blank=True,
+                                     null=True,
+                                     on_delete=models.SET_NULL)
+
+
+class Intervention(models.Model):
+    """An intervention during a seminar as part of a LJP proposal"""
+    date_start = models.DateTimeField(verbose_name=_('Starting time'))
+    duration = models.DecimalField(verbose_name=_('Duration in hours'),
+                                   max_digits=3,
+                                   decimal_places=2)
+    activity = models.TextField(verbose_name=_('Activity and method'))
+
+    ljp_proposal = models.ForeignKey(LJPProposal,
+                                     verbose_name=_('LJP Proposal'),
+                                     blank=False,
+                                     on_delete=models.CASCADE)
+
+
 def annotate_activity_score(queryset):
     one_year_ago = datetime.now() - timedelta(days=365)
     queryset = queryset.annotate(

jdav_web/templates/admin/finance/statement/change_form_object_tools.html

@@ -0,0 +1,15 @@
+{% extends "admin/change_form_object_tools.html" %}
+{% load i18n admin_urls %}
+
+{% block object-tools-items %}
+
+{% if not original.submitted %}
+<li>
+    {% url opts|admin_urlname:'submit' original.pk|admin_urlquote as invite_url %}
+    <a class="historylink" href="{% add_preserved_filters invite_url %}">{% trans 'Submit' %}</a>
+</li>
+{% endif %}
+
+{{block.super}}
+
+{% endblock %}

jdav_web/templates/admin/finance/statementsubmitted/change_form_object_tools.html

@@ -0,0 +1,13 @@
+{% extends "admin/change_form_object_tools.html" %}
+{% load i18n admin_urls %}
+
+{% block object-tools-items %}
+
+<li>
+    {% url opts|admin_urlname:'overview' original.pk|admin_urlquote as invite_url %}
+    <a class="historylink" href="{% add_preserved_filters invite_url %}">{% trans 'Overview' %}</a>
+</li>
+
+{{block.super}}
+
+{% endblock %}