A generic, reusable column block for Wagtail's StreamField.

Allows developers to create column layouts with a number of different layout ratios that are supported in the admin in a visually appealing way.

A basic frontend template is included, but no frontend CSS. Due to the variations of responsive layouts and frontend layout frameworks, frontend templates should be overridden by the developer.

Once you have set up Wagtail, you should just need to do the following:

1. pip install wagtailcolumnblocks
2. Edit INSTALLED_APPS in your settings.py to include 'wagtailcolumnblocks'.

Assuming you have set up Wagtail according to these instructions (and those above), you can see wagtailcolumnblocks in action as follows.

Edit home/models.py to look like this. HomePage is from the original templated code, and we've added SidebarPage and the *Blocks classes:

from django.db import models

from wagtail.core.models import Page
from wagtail.core import blocks
from wagtail.core import fields
from wagtail.embeds.blocks import EmbedBlock
from wagtail.images.blocks import ImageChooserBlock
from wagtail.admin.edit_handlers import FieldPanel, StreamFieldPanel

from wagtailcolumnblocks.blocks import ColumnsBlock


class MyContentBlocks(blocks.StreamBlock):
    """
    The blocks you want to allow within each MyColumnBlocks column.
    """

    image = ImageChooserBlock()
    text = blocks.CharBlock()


class MyColumnBlocks(blocks.StreamBlock):
    """
    All the root level blocks you can use
    """
    column_2_1 = ColumnsBlock(
        # Blocks you want to allow within each column
        MyContentBlocks(),
        # Two columns in admin, first twice as wide as the second
        ratios=(2, 1),
        # Used for grouping related fields in the streamfield field picker
        group="Columns",
        # 12 column frontend grid (this is the default, so can be omitted)
        grid_width=12,
        # Override the frontend template
        template='home/blocks/two_column_block.html',
    )


class SidebarPage(Page):
    content = fields.StreamField(MyColumnBlocks)

    content_panels = [
        FieldPanel('title'),
        StreamFieldPanel('content')
    ]

class HomePage(Page):
    pass

Edit home/templates/home/sidebar_page.html to look like this:

{% extends "base.html" %}
{% load static %}
{% load wagtailcore_tags %}

{% block content %}
<div class="row">
    {{page.content}}
</div>
{% endblock content %}

Edit home/templates/home/blocks/two_column_block.html to look like this:

{% load wagtailcore_tags %}

<div class="row">
    {% for column, width in columns %}
        <div class="col-xs-12 col-md-6">
            Column width = {{ width }}
            {% include_block column %}
        </div>
    {% endfor %}
</div>

Run python manage.py makemigrations && python manage.py migrate to add our SidebarPage migration and execute it.

In the Wagtail admin you should now be able to create a Sidebar page which shows up in a two column layout. When you view or preview the page you should see the templated content.

Deployment to pypi should happen automatically via travis-ci.org once the commit on master is tagged appropriately.

Licensed under the BSD 3-clause "New" or "Revised" License.

(c) 2019, Squareweave. All rights reserved.