models.py

from __future__ import unicode_literals

from django.db import models

from wagtail.wagtailcore.blocks import StructBlock, CharBlock, URLBlock, StreamBlock
from wagtail.wagtailcore.models import Page
from wagtail.wagtailcore.fields import StreamField, RichTextField
from wagtail.wagtailimages.blocks import ImageChooserBlock
from wagtail.wagtailimages.edit_handlers import ImageChooserPanel
from wagtail.wagtailadmin.edit_handlers import FieldPanel, MultiFieldPanel, \
    StreamFieldPanel


#this blocks image does not get loaded from fixture
class CarouselBlock(StructBlock):
    image = ImageChooserBlock(icon='image')
    caption = CharBlock(blank=True, null=True, required=False)
    link = URLBlock(blank=True, null=True, required=False)

    class Meta:
        label = "Carousel Block"
        template = "blocks/carousel.html"


class CarouselHomeBlock(StreamBlock):
    carousel = CarouselBlock()

    class Meta:
        template = 'blocks/carousel_home.html'
        label = 'Carousel'


class HomePage(Page):
    #subpage_types
    logo = models.ForeignKey(
        'wagtailimages.Image',
        null=True,
        blank=True,
        on_delete=models.SET_NULL,
        related_name='+'
    )
    icon = models.ForeignKey(
        'wagtailimages.Image',
        null=True,
        blank=True,
        on_delete=models.SET_NULL,
        related_name='+'
    )
    carousel = StreamField(CarouselHomeBlock(), null=True, blank=True)
    search_fields = ()
    body = RichTextField(blank=True)

    #custom properties and unicode() children() get_context() etc..

    class Meta:
        verbose_name = "Home page"

    content_panels = [
        MultiFieldPanel(Page.content_panels + [
            FieldPanel('body', classname="full"),
        ], "Base"),
        StreamFieldPanel('carousel'),
    ]

    promote_panels = [
        MultiFieldPanel(Page.promote_panels, "Common page configurations"),
        MultiFieldPanel([
            ImageChooserPanel('logo'),
            ImageChooserPanel('icon'),
        ], "Display")
    ]