update core app

core/admin.py

@@ -8,8 +8,10 @@ from django.db import router
 from django.template.response import TemplateResponse
 from django.utils.encoding import force_text
 from django.utils.translation import ugettext as _, ugettext_lazy
+from jet.filters import DateRangeFilter
+from rangefilter.filter import DateTimeRangeFilter
 
-from core.models import AbstractStatusModel
+from core.models import AbstractStatusModel, Certificate, City, Currency
 
 admin.site.site_header = 'Русские программы'
 admin.site.index_title = 'Главная страница'
@@ -111,3 +113,26 @@ class SafeModelAdmin(admin.ModelAdmin):
         if 'delete_selected_safe' in actions and not issubclass(self.model, AbstractStatusModel):
             del actions['delete_selected_safe']
         return actions
+
+
+@admin.register(Certificate)
+class CertAdmin(SafeModelAdmin):
+    list_display = ('name','image', 'status')
+    search_fields = ('name',)
+    list_filter = ('status',)
+
+
+@admin.register(City)
+class CityAdmin(admin.ModelAdmin):
+    list_display = ('name',)
+    search_fields = ('name',)
+
+
+@admin.register(Currency)
+class CurrencyAdmin(admin.ModelAdmin):
+    list_display = ('name', 'code', 'sign', 'value')
+    list_filter = (
+        ('create_at', DateRangeFilter), ('updated_at', DateTimeRangeFilter)
+    )
+    search_fields = ('name', 'code', 'sign')
+

core/context_processors.py

@@ -0,0 +1,34 @@
+from django.urls import reverse_lazy
+
+from products.context_processors import product_categories, product_detail
+
+
+def breadcrumbs(request):
+    view_name = request.resolver_match.view_name
+    crumbs = {
+        'breadcrumb': {},
+        'is_index': view_name == 'index:index'
+    }
+    if crumbs['is_index']:
+        return crumbs
+    if 'products' in view_name:
+        crumbs['breadcrumb'] = _product_breadcrumbs(request=request)
+    elif 'news' in view_name:
+        crumbs['breadcrumb'] = _news_breadcrumbs(request=request)
+    return crumbs
+
+
+def _product_breadcrumbs(request):
+    if 'list' in request.resolver_match.view_name:
+        breadcrumb = product_categories(request).get('the_product_category')
+    elif 'details' in request.resolver_match.view_name:
+        breadcrumb = product_detail(request).get('the_product')
+    else:
+        breadcrumb = None
+
+    return breadcrumb
+
+
+
+def _news_breadcrumbs(request):
+    pass

core/fixtures/cities.json

@@ -0,0 +1 @@
+[{"model": "core.city", "pk": 1, "fields": {"create_at": "2018-08-19T14:41:41.552Z", "updated_at": "2018-08-19T14:41:41.552Z", "name": "\u041c\u043e\u0441\u043a\u0432\u0430"}}]

core/fixtures/currencies.json

@@ -0,0 +1 @@
+[{"model": "core.currency", "pk": 1, "fields": {"create_at": "2018-08-19T14:41:00.257Z", "updated_at": "2018-08-19T14:41:00.257Z", "name": "\u0420\u0443\u0431\u043b\u044c", "code": "RUB", "sign": "\u20bd", "value": "1.00"}}]

core/forms.py

@@ -0,0 +1,18 @@
+from copy import copy
+from django import forms
+from django.urls import reverse_lazy
+
+
+class QueryFormBase(forms.Form):
+    form_action = 'products:product_list'
+    query_params = {}
+
+    def __init__(self, *args, **kwargs):
+        self.form_action = kwargs.pop('product_form_action','products:product_list')
+        self.query_params = copy(kwargs.pop('query_params', {}))
+
+        super().__init__(*args, **kwargs)
+
+
+    def get_form_action_url(self):
+        return reverse_lazy(**self.form_action)

core/models.py

@@ -1,8 +1,16 @@
+from abc import abstractmethod
+
 from django.conf import settings
 from django.contrib.auth.base_user import BaseUserManager
+from django.urls import reverse_lazy
 from django.utils.translation import ugettext_lazy as _
 from django.db import models
 
+from mptt import (
+    models as mptt_models,
+    managers as mptt_managers,
+)
+
 # Create your models here.
 STATUS_NEW = 0
 STATUS_ACTIVE = 25
@@ -17,6 +25,17 @@ STATUS_CHOICES = (
 )
 
 
+class CaseInsensitiveQuerySet(models.QuerySet):
+    CASE_INSENSITIVE_FIELDS = ('email',)
+
+    def _filter_or_exclude(self, negate, *args, **kwargs):
+        for field in self.CASE_INSENSITIVE_FIELDS:
+            if field in kwargs:
+                kwargs[field + '__iexact'] = kwargs[field]
+                del kwargs[field]
+        return super()._filter_or_exclude(negate, *args, **kwargs)
+
+
 class ActualOnlyManager(models.Manager):
     def get_queryset(self):
         queryset = super().get_queryset()
@@ -35,6 +54,18 @@ class DeletedManager(models.Manager):
         return super().get_queryset().filter(status=STATUS_DELETED)
 
 
+class ActualOnlyTreeManager(mptt_managers.TreeManager, ActualOnlyManager):
+    _base_manager = None
+
+
+class ActiveOnlyTreeManager(mptt_managers.TreeManager, ActiveOnlyManager):
+    _base_manager = None
+
+
+class DeletedTreeManager(mptt_managers.TreeManager, DeletedManager):
+    _base_manager = None
+
+
 class AbstractDateTimeModel(models.Model):
     create_at = models.DateTimeField(_('создан в'), auto_now_add=True)
     updated_at = models.DateTimeField(_('обновлен'), auto_now=True)
@@ -73,12 +104,59 @@ class AbstractStatusModel(AbstractDateTimeModel):
         abstract = True
 
 
-class CaseInsensitiveQuerySet(models.QuerySet):
-    CASE_INSENSITIVE_FIELDS = ('email',)
+class AbstractStatusMPTTModel(mptt_models.MPTTModel, AbstractStatusModel):
+    objects = ActualOnlyTreeManager()
+    deleted = DeletedTreeManager()
+    active = ActiveOnlyTreeManager()
 
-    def _filter_or_exclude(self, negate, *args, **kwargs):
-        for field in self.CASE_INSENSITIVE_FIELDS:
-            if field in kwargs:
-                kwargs[field + '__iexact'] = kwargs[field]
-                del kwargs[field]
-        return super()._filter_or_exclude(negate, *args, **kwargs)
+    @property
+    def viewname(self):
+        raise NotImplementedError
+
+    @property
+    def viewname_kwargs(self):
+        raise NotImplementedError
+
+    def get_absolute_url(self):
+        return reverse_lazy(self.viewname, kwargs=self.viewname_kwargs)
+
+    class Meta:
+        abstract = True
+
+
+class Currency(AbstractDateTimeModel):
+    name = models.CharField(_('название'), max_length=255)
+    code = models.CharField(_('код валюты'), max_length=64)
+    sign = models.CharField(_('символ валюты'), max_length=10, blank=True, null=True)
+    value = models.DecimalField(_('Курс'), max_digits=6, decimal_places=2, help_text=_('Указывается в рублях'))
+
+    def __str__(self):
+        return self.name
+
+    class Meta:
+        verbose_name = _('Валюта')
+        verbose_name_plural = _('Валюта')
+
+
+class City(AbstractDateTimeModel):
+    name = models.CharField(_('Город'), max_length=255)
+
+    class Meta:
+        verbose_name = _('Город')
+        verbose_name_plural = _('Города')
+
+
+class Certificate(AbstractStatusModel):
+    def upload_file_to(self, filename):
+        return "certificates/{filename}".format(**{
+            'category': self.name,
+            'filename': filename
+        })
+
+    name = models.CharField(_('Название'), max_length=255)
+    image = models.FileField(_('Изображение'), upload_to=upload_file_to, blank=True,null=True)
+    preview = models.FileField(_('Миниатюрка'), upload_to=upload_file_to)
+
+    class Meta:
+        verbose_name = _('Сертификат')
+        verbose_name_plural = _('Сертификаты')

core/templatetags/core_filters.py

@@ -0,0 +1,7 @@
+from django.template import Library
+
+register = Library()
+
+@register.filter
+def get_item(dictionary, key):
+    return dictionary.get(key)

core/templatetags/core_tags.py

@@ -0,0 +1,124 @@
+from django import template
+from django.template import loader, Node, Variable
+from django.utils.encoding import smart_str, smart_bytes
+from django.template.defaulttags import url
+from django.template import VariableDoesNotExist
+from mptt.templatetags.mptt_tags import recursetree
+
+register = template.Library()
+
+@register.tag
+def breadcrumb(parser, token):
+    """
+    Renders the breadcrumb.
+    Examples:
+        {% breadcrumb "Title of breadcrumb" url_var %}
+        {% breadcrumb context_var  url_var %}
+        {% breadcrumb "Just the title" %}
+        {% breadcrumb just_context_var %}
+
+    Parameters:
+    -First parameter is the title of the crumb,
+    -Second (optional) parameter is the url variable to link to, produced by url tag, i.e.:
+        {% url person_detail object.id as person_url %}
+        then:
+        {% breadcrumb person.name person_url %}
+
+    @author Andriy Drozdyuk
+    """
+    return BreadcrumbNode(token.split_contents()[1:])
+
+
+@register.tag
+def breadcrumb_url(parser, token):
+    """
+    Same as breadcrumb
+    but instead of url context variable takes in all the
+    arguments URL tag takes.
+        {% breadcrumb "Title of breadcrumb" person_detail person.id %}
+        {% breadcrumb person.name person_detail person.id %}
+    """
+
+    bits = token.split_contents()
+    if len(bits)==2:
+        return breadcrumb(parser, token)
+
+    # Extract our extra title parameter
+    title = bits.pop(1)
+    token.contents = ' '.join(bits)
+
+    url_node = url(parser, token)
+
+    return UrlBreadcrumbNode(title, url_node)
+
+@register.tag
+def breadcrumb_mptt_url(parser, token):
+    return recursetree(parser, token)
+
+class BreadcrumbNode(Node):
+    def __init__(self, vars):
+        """
+        First var is title, second var is url context variable
+        """
+        self.vars = map(Variable,vars)
+
+    def render(self, context):
+        title = self.vars[0].var
+
+        if title.find("'")==-1 and title.find('"')==-1:
+            try:
+                val = self.vars[0]
+                title = val.resolve(context)
+            except:
+                title = ''
+
+        else:
+            title=title.strip("'").strip('"')
+            title=smart_bytes(title)
+
+        url = None
+
+        if len(self.vars)>1:
+            val = self.vars[1]
+            try:
+                url = val.resolve(context)
+            except VariableDoesNotExist:
+                print('URL does not exist', val)
+                url = None
+
+        return create_crumb(title, url)
+
+
+class UrlBreadcrumbNode(Node):
+    def __init__(self, title, url_node):
+        self.title = Variable(title)
+        self.url_node = url_node
+
+    def render(self, context):
+        title = self.title.var
+
+        if title.find("'")==-1 and title.find('"')==-1:
+            try:
+                val = self.title
+                title = val.resolve(context)
+            except:
+                title = ''
+        else:
+            title=title.strip("'").strip('"')
+            title=smart_bytes(title)
+
+        url = self.url_node.render(context)
+        return create_crumb(title, url)
+
+
+def create_crumb(title, url=None):
+    """
+    Helper function
+    """
+    crumb = """<li><a href='%s'>%s</a></span>"""
+    if url:
+        crumb = crumb.format(url, title)
+    else:
+        crumb = crumb.format('#', title)
+
+    return crumb

core/utils.py

@@ -0,0 +1,6 @@
+
+def parse_path(path):
+    try:
+        return path.split('/')[-2]  # slug of the instance
+    except IndexError:
+        return None

core/views.py

@@ -1,19 +1,40 @@
 from django.contrib.auth.mixins import LoginRequiredMixin
 
 # Create your views here.
-from django.views.generic import TemplateView, ListView
+from django.views import View
+from django.views.generic import TemplateView, ListView, DetailView, FormView
 
 
-class ProtectedView(LoginRequiredMixin, TemplateView):
+class ProtectedView(LoginRequiredMixin, View):
+    pass
+
+
+class ProtectedTemplateView(LoginRequiredMixin, TemplateView):
     pass
 
 
 class ProtectedListView(LoginRequiredMixin, ListView):
     pass
 
+
+class ProtectedDetailView(LoginRequiredMixin, DetailView):
+    pass
+
+
+class ProtectedFormView(LoginRequiredMixin, FormView):
+    pass
+
+
 class Handler404View(TemplateView):
     template_name = '404.html'
 
 
 class Handler500View(TemplateView):
     template_name = '500.html'
+
+
+class Handler403View(TemplateView):
+    template_name = '403.html'
+
+class Handler400View(TemplateView):
+    template_name = '400.html'