alej0varas

# Example usage of database funtions(`Sum` and `Avg`) and Django `JSONField`'s `jsonb_array_length`

# PostgreSQL json field functions: https://www.postgresql.org/docs/9.5/static/functions-json.html
# Django `F` and `Func`: https://docs.djangoproject.com/en/1.10/ref/models/expressions/#f-expressions
# Django aggregation: https://docs.djangoproject.com/en/1.10/topics/db/aggregation/
# Django `JSONField`: https://docs.djangoproject.com/en/1.9/ref/contrib/postgres/fields/#jsonfield

# Given a model
class Contact(models.Model):
    numbers = JSONField(help_text="An array of numbers")

alej0varas

# Thanks to Ethan Jucovy
# http://www.coactivate.org/projects/ejucovy/blog/2014/05/10/wagtail-notes-managing-redirects-as-pages/

# This model comes from wagtaildemo

class LinkFields(models.Model):
    link_external = models.URLField("External link", blank=True)
    link_page = models.ForeignKey(
        'wagtailcore.Page',
        null=True,

alej0varas

from django.conf import settings
from django.utils.safestring import mark_safe

from wagtail.wagtailadmin.edit_handlers import BaseFieldPanel


class BaseColorFieldPanel(BaseFieldPanel):
    def render_js(self):
        big_javascript_block = """
        (function() {

alej0varas

import base64

from django import forms
from django.core.files.uploadedfile import SimpleUploadedFile


class Base64MultiField(forms.MultiValueField):
    def __init__(self, *args, **kwargs):
        kwargs['fields'] = (
            forms.CharField(),