aircox-radiocampus/aircox_cms/views.py
2015-10-04 22:05:10 +02:00

375 lines
10 KiB
Python

import re
from django.templatetags.static import static
from django.shortcuts import render
from django.template.loader import render_to_string
from django.views.generic import ListView, DetailView
from django.views.generic.base import View, TemplateResponseMixin
from django.core import serializers
from django.utils.translation import ugettext as _, ugettext_lazy
from django.utils.html import escape
import aircox_cms.routes as routes
class PostBaseView:
website = None # corresponding website
title = '' # title of the page
embed = False # page is embed (if True, only post content is printed
classes = '' # extra classes for the content
def get_base_context (self):
"""
Return a context with all attributes of this classe plus 'view' set
to self.
"""
context = {
k: getattr(self, k)
for k, v in PostBaseView.__dict__.items()
if not k.startswith('__')
}
if not self.embed:
context['menus'] = {
k: v.get(self.request)
for k, v in {
k: self.website.get_menu(k)
for k in self.website.menu_layouts
}.items() if v
}
context['view'] = self
return context
class PostListView (PostBaseView, ListView):
"""
List view for posts and children
"""
class Query:
"""
Request availables parameters
"""
embed = False
exclude = None
order = 'desc'
reverse = False
fields = None
def __init__ (self, query):
if query:
self.update(query)
def update (self, query):
my_class = self.__class__
if type(query) is my_class:
self.__dict__.update(query.__dict__)
return
self.__dict__.update(query)
template_name = 'aircox_cms/list.html'
allow_empty = True
route = None
query = None
fields = [ 'date', 'time', 'image', 'title', 'content' ]
def __init__ (self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.query = PostListView.Query(self.query)
def dispatch (self, request, *args, **kwargs):
self.route = self.kwargs.get('route') or self.route
return super().dispatch(request, *args, **kwargs)
def get_queryset (self):
qs = self.route.get_queryset(self.model, self.request, **self.kwargs)
query = self.query
query.update(self.request.GET)
if query.exclude:
qs = qs.exclude(id = int(exclude))
if query.embed:
self.embed = True
if query.order == 'asc':
qs.order_by('date', 'id')
else:
qs.order_by('-date', '-id')
if query.fields:
self.fields = [
field for field in query.fields
if field in self.__class__.fields
]
return qs
def get_context_data (self, **kwargs):
context = super().get_context_data(**kwargs)
context.update(self.get_base_context())
context.update({
'title': self.get_title(),
})
return context
def get_title (self):
if self.title:
return self.title
title = self.route and self.route.get_title(self.model, self.request,
**self.kwargs)
return title
class PostDetailView (DetailView, PostBaseView):
"""
Detail view for posts and children
"""
template_name = 'aircox_cms/detail.html'
sections = []
def __init__ (self, sections = None, *args, **kwargs):
super().__init__(*args, **kwargs)
self.sections = sections or []
def get_queryset (self):
if self.request.GET.get('embed'):
self.embed = True
if self.model:
return super().get_queryset().filter(published = True)
return []
def get_object (self, **kwargs):
if self.model:
object = super().get_object(**kwargs)
if object.published:
return object
return None
def get_context_data (self, **kwargs):
context = super().get_context_data(**kwargs)
context.update(self.get_base_context())
context.update({
'sections': [
section.get(self.request, object = self.object)
for section in self.sections
]
})
return context
class Menu (View):
template_name = 'aircox_cms/menu.html'
name = ''
tag = 'nav'
enabled = True
classes = ''
position = '' # top, left, bottom, right, header, footer, page_top, page_bottom
sections = None
def __init__ (self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.name = self.name or ('menu_' + self.position)
def get_context_data (self, **kwargs):
return {
'name': self.name,
'tag': self.tag,
'classes': self.classes,
'position': self.position,
'sections': [
section.get(self.request, object = None)
for section in self.sections
]
}
def get (self, request, **kwargs):
self.request = request
context = self.get_context_data(**kwargs)
return render_to_string(self.template_name, context)
class BaseSection (View):
"""
Base class for sections. Sections are view that can be used in detail view
in order to have extra content about a post, or in menus.
"""
template_name = 'aircox_cms/base_section.html'
tag = 'div' # container tags
classes = '' # container classes
attrs = '' # container extra attributes
content = '' # content
def get_context_data (self, **kwargs):
return {
'tag': self.tag,
'classes': self.classes,
'attrs': self.attrs,
'content': self.content,
}
def get (self, request, **kwargs):
self.request = request
context = self.get_context_data(**kwargs)
return render_to_string(self.template_name, context)
class Section (BaseSection):
template_name = 'aircox_cms/section.html'
require_object = False
object = None
title = ''
header = ''
bottom = ''
def get_context_data (self, **kwargs):
context = super().get_context_data(**kwargs)
context.update({
'title': self.title,
'header': self.header,
'bottom': self.bottom,
})
return context
def get (self, request, **kwargs):
self.object = kwargs.get('object') or self.object
return super().get(request, **kwargs)
class Sections:
class Image (BaseSection):
url = None # relative url to the image
@property
def content (self):
return '<img src="{}">'.format(
static(self.url),
)
class PostContent (Section):
@property
def content (self):
content = escape(self.object.content)
content = re.sub(r'(^|\n\n)((\n?[^\n])+)', r'<p>\2</p>', content)
content = re.sub(r'\n', r'<br>', content)
return content
class PostImage (Section):
@property
def content (self):
return '<img src="{}" class="post_image">'.format(
self.object.image.url
)
class List (Section):
"""
Section to render list. The context item 'object_list' is used as list of
items to render.
"""
class Item:
icon = None
title = None
text = None
def __init__ (self, icon, title = None, text = None):
self.icon = icon
self.title = title
self.text = text
use_icons = True
icon_size = '32x32'
template_name = 'aircox_cms/section_list.html'
def get_object_list (self):
return []
def get_context_data (self, **kwargs):
context = super().get_context_data(**kwargs)
context.update({
'classes': context.get('classes') + ' section_list',
'icon_size': self.icon_size,
'object_list': self.get_object_list(),
})
return context
class UrlList (List):
classes = 'section_urls'
targets = None
def get_object_list (self, request, **kwargs):
return [
List.Item(
target.image or None,
'<a href="{}">{}</a>'.format(target.detail_url(), target.title)
)
for target in self.targets
]
class PostList (PostListView):
route = None
model = None
embed = True
def __init__ (self, *args, **kwargs):
super().__init__(*args, **kwargs)
def get_kwargs (self, request, **kwargs):
return kwargs
def dispatch (self, request, *args, **kwargs):
kwargs = self.get_kwargs(kwargs)
response = super().dispatch(request, *args, **kwargs)
return str(response.content)
class ViewSet:
"""
A ViewSet is a class helper that groups detail and list views that can be
used to generate views and routes given a model and a name used for the
routing.
"""
model = None
list_view = PostListView
list_routes = []
detail_view = PostDetailView
detail_sections = [
Sections.PostContent,
Sections.PostImage,
]
def __init__ (self, website = None):
self.detail_sections = [
section()
for section in self.detail_sections
]
self.detail_view = self.detail_view.as_view(
model = self.model,
sections = self.detail_sections,
website = website,
)
self.list_view = self.list_view.as_view(
model = self.model,
website = website,
)
self.urls = [ route.as_url(self.model, self.list_view)
for route in self.list_routes ] + \
[ routes.DetailRoute.as_url(self.model, self.detail_view ) ]