656 lines
20 KiB
Python
656 lines
20 KiB
Python
from enum import IntEnum
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from django.db import models
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from django.contrib.contenttypes.models import ContentType
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from django.template import Template, Context
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from django.utils.translation import ugettext as _, ugettext_lazy
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from django.utils.functional import cached_property
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from django.urls import reverse
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from modelcluster.models import ClusterableModel
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from modelcluster.fields import ParentalKey
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from wagtail.wagtailadmin.edit_handlers import *
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from wagtail.wagtailimages.edit_handlers import ImageChooserPanel
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from wagtail.wagtailcore.models import Page
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from wagtail.wagtailcore.fields import RichTextField
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from wagtail.wagtailsnippets.models import register_snippet
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import aircox.models
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from aircox_cms.models.lists import *
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from aircox_cms.views.components import Component, ExposedData
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from aircox_cms.utils import related_pages_filter
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@register_snippet
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class Region(ClusterableModel):
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"""
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Region is a container of multiple items of different types
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that are used to render extra content related or not the current
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page.
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A section has an assigned position in the page, and can be restrained
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to a given type of page.
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"""
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name = models.CharField(
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_('name'),
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max_length=32,
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blank = True, null = True,
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help_text=_('name of this section (not displayed)'),
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)
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position = models.CharField(
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_('position'),
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max_length=16,
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blank = True, null = True,
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help_text = _('name of the template block in which the section must '
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'be set'),
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)
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order = models.IntegerField(
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_('order'),
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default = 100,
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help_text = _('order of rendering, the higher the latest')
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)
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model = models.ForeignKey(
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ContentType,
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verbose_name = _('model'),
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blank = True, null = True,
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help_text=_('this section is displayed only when the current '
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'page or publication is of this type'),
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limit_choices_to = related_pages_filter,
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)
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page = models.ForeignKey(
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Page,
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verbose_name = _('page'),
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blank = True, null = True,
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help_text=_('this section is displayed only on this page'),
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)
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panels = [
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MultiFieldPanel([
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FieldPanel('name'),
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FieldPanel('position'),
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FieldPanel('model'),
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FieldPanel('page'),
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], heading=_('General')),
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# InlinePanel('items', label=_('Region Items')),
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]
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@classmethod
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def get_sections_at (cl, position, page = None):
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"""
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Return a queryset of sections that are at the given position.
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Filter out Region that are not for the given page.
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"""
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qs = Region.objects.filter(position = position)
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if page:
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qs = qs.filter(
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models.Q(page__isnull = True) |
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models.Q(page = page)
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)
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qs = qs.filter(
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models.Q(model__isnull = True) |
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models.Q(
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model = ContentType.objects.get_for_model(page).pk
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)
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)
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return qs.order_by('order','pk')
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def add_item(self, item):
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"""
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Add an item to the section. Automatically save the item and
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create the corresponding SectionPlace.
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"""
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item.section = self
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item.save()
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def render(self, request, page = None, context = None, *args, **kwargs):
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return ''.join([
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item.specific.render(request, page, context, *args, **kwargs)
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for item in self.items.all().order_by('order','pk')
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])
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def __str__(self):
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return '{}: {}'.format(self.__class__.__name__, self.name or self.pk)
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@register_snippet
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class Section(Component, models.Model):
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"""
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Section is a widget configurable by user that can be rendered inside
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Regions.
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"""
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template_name = 'aircox_cms/sections/section.html'
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section = ParentalKey(Region, related_name='items')
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order = models.IntegerField(
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_('order'),
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default = 100,
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help_text = _('order of rendering, the higher the latest')
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)
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real_type = models.CharField(
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max_length=32,
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blank = True, null = True,
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)
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title = models.CharField(
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_('title'),
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max_length=32,
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blank = True, null = True,
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)
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show_title = models.BooleanField(
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_('show title'),
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default = False,
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help_text=_('if set show a title at the head of the section'),
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)
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css_class = models.CharField(
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_('CSS class'),
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max_length=64,
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blank = True, null = True,
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help_text=_('section container\'s "class" attribute')
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)
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template_name = 'aircox_cms/sections/item.html'
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panels = [
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MultiFieldPanel([
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FieldPanel('section'),
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FieldPanel('title'),
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FieldPanel('show_title'),
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FieldPanel('order'),
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FieldPanel('css_class'),
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], heading=_('General')),
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]
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# TODO make it reusable
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@cached_property
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def specific(self):
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"""
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Return a downcasted version of the model if it is from another
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model, or itself
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"""
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if not self.real_type or type(self) != Section:
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return self
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return getattr(self, self.real_type)
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def save(self, *args, **kwargs):
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if type(self) != Section and not self.real_type:
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self.real_type = type(self).__name__.lower()
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return super().save(*args, **kwargs)
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def __str__(self):
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return '{}: {}'.format(
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(self.real_type or 'section item').replace('section','section '),
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self.title or self.pk
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)
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class SectionRelativeItem(Section):
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is_related = models.BooleanField(
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_('is related'),
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default = False,
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help_text=_(
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'if set, section is related to the page being processed '
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'e.g rendering a list of links will use thoses of the '
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'publication instead of an assigned one.'
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)
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)
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class Meta:
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abstract=True
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panels = Section.panels.copy()
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panels[-1] = MultiFieldPanel(
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panels[-1].children + [ FieldPanel('is_related') ],
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heading = panels[-1].heading
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)
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def related_attr(self, page, attr):
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"""
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Return an attribute from the given page if self.is_related,
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otherwise retrieve the attribute from self.
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"""
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return self.is_related and hasattr(page, attr) \
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and getattr(page, attr)
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@register_snippet
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class SectionText(Section):
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template_name = 'aircox_cms/sections/text.html'
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body = RichTextField()
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panels = Section.panels + [
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FieldPanel('body'),
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]
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def get_context(self, request, page):
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from wagtail.wagtailcore.rich_text import expand_db_html
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context = super().get_context(request, page)
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context['content'] = expand_db_html(self.body)
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return context
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@register_snippet
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class SectionImage(SectionRelativeItem):
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class ResizeMode(IntEnum):
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max = 0x00
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min = 0x01
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crop = 0x02
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image = models.ForeignKey(
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'wagtailimages.Image',
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verbose_name = _('image'),
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related_name='+',
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blank=True, null=True,
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help_text=_(
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'If this item is related to the current page, this image will '
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'be used only when the page has not a cover'
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)
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)
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width = models.SmallIntegerField(
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_('width'),
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blank=True, null=True,
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help_text=_('if set and > 0, sets a maximum width for the image'),
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)
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height = models.SmallIntegerField(
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_('height'),
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blank=True, null=True,
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help_text=_('if set 0 and > 0, sets a maximum height for the image'),
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)
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resize_mode = models.SmallIntegerField(
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verbose_name = _('resize mode'),
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choices = [ (int(y), _(x)) for x,y in ResizeMode.__members__.items() ],
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default = int(ResizeMode.max),
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help_text=_('if the image is resized, set the resizing mode'),
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)
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panels = Section.panels + [
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ImageChooserPanel('image'),
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MultiFieldPanel([
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FieldPanel('width'),
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FieldPanel('height'),
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FieldPanel('resize_mode'),
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], heading=_('Resizing'))
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]
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cache = ""
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def get_filter(self):
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return \
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'original' if not (self.height or self.width) else \
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'width-{}'.format(self.width) if not self.height else \
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'height-{}'.format(self.height) if not self.width else \
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'{}-{}x{}'.format(
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self.get_resize_mode_display(),
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self.width, self.height
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)
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def ensure_cache(self, image):
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"""
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Ensure that we have a generated image and that it is put in cache.
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We use this method since generating dynamic signatures don't generate
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static images (and we need it).
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"""
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# Note: in order to put the generated image in db, we first need a way
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# to get save events from related page or image.
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if self.cache:
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return self.cache
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if self.width or self.height:
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template = Template(
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'{% load wagtailimages_tags %}\n' +
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'{{% image source {filter} as img %}}'.format(
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filter = self.get_filter()
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) +
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'<img src="{{ img.url }}">'
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)
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context = Context({
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"source": image
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})
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self.cache = template.render(context)
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else:
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self.cache = '<img src="{}"/>'.format(image.file.url)
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return self.cache
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def get_context(self, request, page):
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from wagtail.wagtailimages.views.serve import generate_signature
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context = super().get_context(request, page)
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image = self.related_attr(page, 'cover') or self.image
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if not image:
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return context
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context['content'] = self.ensure_cache(image)
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return context
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@register_snippet
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class SectionLinkList(ClusterableModel, Section):
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template_name = 'aircox_cms/sections/link_list.html'
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panels = Section.panels + [
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InlinePanel('links', label=_('Links')),
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]
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@register_snippet
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class SectionLink(RelatedLinkBase, Component):
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"""
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Render a link to a page or a given url.
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Can either be used standalone or in a SectionLinkList
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"""
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template_name = 'aircox_cms/snippets/link.html'
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parent = ParentalKey(
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'SectionLinkList', related_name = 'links',
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null = True
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)
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def __str__(self):
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return 'link: {} #{}'.format(
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self.text or (self.page and self.page.title) or self.title,
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self.pk
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)
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@register_snippet
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class SectionList(BaseList, SectionRelativeItem):
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"""
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This one is quite badass, but needed: render a list of pages
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using given parameters (cf. BaseList).
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If focus_available, the first article in the list will be the last
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article with a focus, and will be rendered in a bigger size.
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"""
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template_name = 'aircox_cms/sections/list.html'
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# TODO/FIXME: focus, quid?
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# TODO: logs in menu show headline???
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url_text = models.CharField(
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_('text of the url'),
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max_length=32,
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blank = True, null = True,
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help_text = _('use this text to display an URL to the complete '
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'list. If empty, no link is displayed'),
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)
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panels = SectionRelativeItem.panels + [
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FieldPanel('url_text'),
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] + BaseList.panels
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def get_context(self, request, page):
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import aircox_cms.models as cms
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if self.is_related and not self.related:
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# set current page if there is not yet a related page only
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self.related = page
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context = BaseList.get_context(self, request, paginate = False)
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if not context['object_list'].count():
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self.hide = True
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return {}
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context.update(SectionRelativeItem.get_context(self, request, page))
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if self.url_text:
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self.related = self.related and self.related.specific
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target = None
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if self.related and hasattr(self.related, 'get_list_page'):
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target = self.related.get_list_page()
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if not target:
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settings = cms.WebsiteSettings.for_site(request.site)
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target = settings.list_page
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context['url'] = self.to_url(page = target) + '&view=list'
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return context
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SectionList._meta.get_field('count').default = 5
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@register_snippet
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class SectionLogsList(Section):
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template_name = 'aircox_cms/sections/logs_list.html'
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station = models.ForeignKey(
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aircox.models.Station,
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verbose_name = _('station'),
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null = True,
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on_delete=models.SET_NULL,
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help_text = _('(required) the station on which the logs happened')
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)
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count = models.SmallIntegerField(
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_('count'),
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default = 5,
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help_text = _('number of items to display in the list (max 100)'),
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)
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class Meta:
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verbose_name = _('list of logs')
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verbose_name_plural = _('lists of logs')
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panels = Section.panels + [
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FieldPanel('station'),
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FieldPanel('count'),
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]
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@staticmethod
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def as_item(log):
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"""
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Return a log object as a DiffusionPage or ListItem.
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Supports: Log/Track, Diffusion
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"""
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from aircox_cms.models import DiffusionPage
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if log.diffusion:
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return DiffusionPage.as_item(log.diffusion)
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track = log.track
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return ListItem(
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title = '{artist} -- {title}'.format(
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artist = track.artist,
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title = track.title,
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),
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headline = track.info,
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date = log.date,
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info = '♫',
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css_class = 'track'
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)
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def get_context(self, request, page):
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context = super().get_context(request, page)
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context['object_list'] = [
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self.as_item(item)
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for item in self.station.on_air(count = min(self.count, 100))
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]
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return context
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@register_snippet
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class SectionTimetable(Section,DatedBaseList):
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template_name = 'aircox_cms/sections/timetable.html'
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class Meta:
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verbose_name = _('Section: Timetable')
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verbose_name_plural = _('Sections: Timetable')
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station = models.ForeignKey(
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aircox.models.Station,
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verbose_name = _('station'),
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help_text = _('(required) related station')
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)
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target = models.ForeignKey(
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'aircox_cms.TimetablePage',
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verbose_name = _('timetable page'),
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blank = True, null = True,
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help_text = _('select a timetable page used to show complete timetable'),
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)
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nav_visible = models.BooleanField(
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_('show date navigation'),
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default = True,
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help_text = _('if checked, navigation dates will be shown')
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)
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# TODO: put in multi-field panel of DatedBaseList
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panels = Section.panels + DatedBaseList.panels + [
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MultiFieldPanel([
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FieldPanel('nav_visible'),
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FieldPanel('station'),
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FieldPanel('target'),
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], heading=_('Timetable')),
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]
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def get_queryset(self, context):
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from aircox_cms.models import DiffusionPage
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diffs = []
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for date in context['nav_dates']['dates']:
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items = aircox.models.Diffusion.objects.at(self.station, date)
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items = [ DiffusionPage.as_item(item) for item in items ]
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diffs.append((date, items))
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return diffs
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def get_context(self, request, page):
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context = super().get_context(request, page)
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context.update(self.get_date_context())
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context['object_list'] = self.get_queryset(context)
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context['target'] = self.target
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if not self.nav_visible:
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del context['nav_dates']['dates'];
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return context
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@register_snippet
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class SectionPublicationInfo(Section):
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template_name = 'aircox_cms/sections/publication_info.html'
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class Meta:
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verbose_name = _('Section: publication\'s info')
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verbose_name_plural = _('Sections: publication\'s info')
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@register_snippet
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class SectionSearchField(Section):
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template_name = 'aircox_cms/sections/search_field.html'
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default_text = models.CharField(
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_('default text'),
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max_length=32,
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default=_('search'),
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help_text=_('text to display when the search field is empty'),
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)
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class Meta:
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verbose_name = _('Section: search field')
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verbose_name_plural = _('Sections: search field')
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panels = Section.panels + [
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FieldPanel('default_text'),
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]
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@register_snippet
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class SectionPlaylist(Section):
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"""
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User playlist. Can be used to add sounds in it -- there should
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only be one for the moment.
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"""
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class Track(ExposedData):
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"""
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Class exposed to Javascript playlist manager as Track.
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"""
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fields = {
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'name': 'name',
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'embed': 'embed',
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'duration': lambda e, o:
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o.duration.hour * 3600 + o.duration.minute * 60 +
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o.duration.second
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,
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'duration_str': lambda e, o:
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(str(o.duration.hour) + '"' if o.duration.hour else '') +
|
|
str(o.duration.minute) + "'" + str(o.duration.second)
|
|
,
|
|
'sources': lambda e, o: [ o.url() ],
|
|
'detail_url':
|
|
lambda e, o: o.diffusion and hasattr(o.diffusion, 'page') \
|
|
and o.diffusion.page.url
|
|
,
|
|
'cover':
|
|
lambda e, o: o.diffusion and hasattr(o.diffusion, 'page') \
|
|
and o.diffusion.page.icon
|
|
,
|
|
}
|
|
|
|
user_playlist = models.BooleanField(
|
|
_('user playlist'),
|
|
default = False,
|
|
help_text = _(
|
|
'if set, this playlist is to be editable by the user'
|
|
)
|
|
)
|
|
single_mode = models.BooleanField(
|
|
_('single_mode'),
|
|
default = False,
|
|
help_text = _(
|
|
'enable single mode by default on this playlist'
|
|
)
|
|
)
|
|
|
|
tracks = None
|
|
|
|
template_name = 'aircox_cms/sections/playlist.html'
|
|
panels = Section.panels + [
|
|
FieldPanel('user_playlist'),
|
|
FieldPanel('single_mode'),
|
|
]
|
|
|
|
def __init__(self, *args, sounds = None, tracks = None, page = None, **kwargs):
|
|
"""
|
|
Init playlist section. If ``sounds`` is given initialize playlist
|
|
tracks with it. If ``page`` is given use it for Track infos
|
|
related to a page (cover, detail_url, ...)
|
|
"""
|
|
self.tracks = (tracks or []) + [
|
|
self.Track(object = sound, detail_url = page and page.url,
|
|
cover = page and page.icon)
|
|
for sound in sounds or []
|
|
]
|
|
super().__init__(*args, **kwargs)
|
|
|
|
def get_context(self, request, page):
|
|
context = super().get_context(request, page)
|
|
context.update({
|
|
'is_default': self.user_playlist,
|
|
'modifiable': self.user_playlist,
|
|
'storage_key': self.user_playlist and str(self.pk),
|
|
'tracks': self.tracks
|
|
})
|
|
if not self.user_playlist and not self.tracks:
|
|
self.hide = True
|
|
return context
|
|
|
|
|
|
@register_snippet
|
|
class SectionPlayer(Section):
|
|
"""
|
|
Radio stream player.
|
|
"""
|
|
template_name = 'aircox_cms/sections/playlist.html'
|
|
live_title = models.CharField(
|
|
_('live title'),
|
|
max_length = 32,
|
|
help_text = _('text to display when it plays live'),
|
|
)
|
|
streams = models.TextField(
|
|
_('audio streams'),
|
|
help_text = _('one audio stream per line'),
|
|
)
|
|
icon = models.ImageField(
|
|
_('icon'),
|
|
blank = True, null = True,
|
|
help_text = _('icon to display in the player')
|
|
)
|
|
|
|
class Meta:
|
|
verbose_name = _('Section: Player')
|
|
|
|
panels = Section.panels + [
|
|
FieldPanel('live_title'),
|
|
FieldPanel('streams'),
|
|
]
|
|
|
|
def get_context(self, request, page):
|
|
context = super().get_context(request, page)
|
|
context['tracks'] = [SectionPlaylist.Track(
|
|
name = self.live_title,
|
|
sources = self.streams.split('\r\n'),
|
|
data_url = reverse('aircox.on_air'),
|
|
interval = 10,
|
|
run = True,
|
|
)]
|
|
return context
|
|
|
|
|