One workaroud to pass variables (context) to django admin submit_line.html template

Recently I had to modify django admin page massively, while trying to add a new button at add new model item at admin page I got into trouble, trouble was not to show the button, or get that button working but it was at variable passing. So in this blog I am going to describe, how did I solve it.

I am overriding this template submit_line.html:

{% load i18n admin_urls %}




{% if show_save %}{% if is_popup %}{% else %}{% endif %} {% trans 'Save' %}{% endif %}

{% if show_save_as_draft %}
    

    
    
{% endif %}



{% if show_save_and_add_another %} {% trans 'Save and add another' %}{% endif %}
{% if show_save_and_continue %} {% trans 'Save and continue editing' %}{% endif %}
{% if show_delete_link %}
    {% url opts|admin_urlname:'delete' original.pk|admin_urlquote as delete_url %}
      {% trans "Delete" %}
{% endif %}

Here,

{{show_save_as_draft}}

is at out extra context of our ModelAdmin while it is showing:

#/home/sadaf2605/PycharmProjects/stripe/stripe/news/admin.py
class ArticleAdmin(admin.ModelAdmin):
    change_form_template = 'admin/news/change_form.html'
    def change_view(self, request,object_id, form_url='', extra_context=None):
        extra_context = extra_context or {}
        extra_context["show_save_as_draft"] = True
        return super(ArticleAdmin, self).change_view(request,object_id, form_url, extra_context)

Still

{{show_save_as_draft}}

is not showing up. This is the problem

To solve this problem I actually override a template tag that was responsible for showing buttons, basically that template tag was only keeping few selected context field. In this new tag I am keeping tags which are necessary for my app.

#stripe/stripe/news/templatetags/stripe_admin_tag.py
__author__ = 'sadaf2605'
from django import template
register = template.Library()
from django.contrib.admin.templatetags import admin_modify

@register.inclusion_tag('admin/submit_line.html', takes_context=True)
def submit_line_row(context):
    context = context or {}
    ctx= admin_modify.submit_row(context)
    if "show_save_as_draft" in context.keys():
        ctx["show_save_as_draft"] = context["show_save_as_draft"]
    return  ctx

and then finally I need to override change_form.html as well, I need to replace:

{% block submit_buttons_bottom %}{% submit_row %}{% endblock %}

with:

{% load stripe_admin_tag %}
{% block submit_buttons_bottom %}{% submit_ine_row %}{% endblock %}

/stripe/stripe/stripe/templates/admin/news/change_form.html

{% extends "admin/base_site.html" %}
{% load i18n admin_urls admin_static admin_modify %}

{% block extrahead %}{{ block.super }}

{{ media }}
{% endblock %}

{% block extrastyle %}{{ block.super }}{% endblock %}

{% block coltype %}colM{% endblock %}

{% block bodyclass %}{{ block.super }} app-{{ opts.app_label }} model-{{ opts.model_name }} change-form{% endblock %}

{% if not is_popup %}
{% block breadcrumbs %}

{% trans 'Home' %}
› {{ opts.app_config.verbose_name }}
› {% if has_change_permission %}{{ opts.verbose_name_plural|capfirst }}{% else %}{{ opts.verbose_name_plural|capfirst }}{% endif %}
› {% if add %}{% trans 'Add' %} {{ opts.verbose_name }}{% else %}{{ original|truncatewords:"18" }}{% endif %}

{% endblock %}
{% endif %}

{% block content %}

{% block object-tools %}
{% if change %}{% if not is_popup %}
  

    {% block object-tools-items %}
    

        {% url opts|admin_urlname:'history' original.pk|admin_urlquote as history_url %}
        {% trans "History" %}
    
    {% if has_absolute_url %}
{% trans "View on site" %}
{% endif%}
    {% endblock %}
  
{% endif %}{% endif %}
{% endblock %}
{% csrf_token %}{% block form_top %}{% endblock %}

{% if is_popup %}{% endif %}
{% if to_field %}{% endif %}
{# WP Admin start #}
{% if 0 %}{% block submit_buttons_top %}{% submit_row %}{% endblock %}{% endif %}
{# WP Admin end #}
{% if errors %}
    

    {% if errors|length == 1 %}{% trans "Please correct the error below." %}{% else %}{% trans "Please correct the errors below." %}{% endif %}
    
    {{ adminform.form.non_field_errors }}
{% endif %}

{% block field_sets %}
{% for fieldset in adminform %}
  {% include "admin/includes/fieldset.html" %}
{% endfor %}
{% endblock %}

{% block after_field_sets %}{% endblock %}

{% block inline_field_sets %}
{% for inline_admin_formset in inline_admin_formsets %}
    {% include inline_admin_formset.opts.template %}
{% endfor %}
{% endblock %}

{% block after_related_objects %}{% endblock %}
{% load stripe_admin_tag %}
{% block submit_buttons_bottom %}{% submit_line_row %}{% endblock %}

{% if adminform and add %}
    
        (function($) {
            $(document).ready(function() {
                $('form#{{ opts.model_name }}_form :input:visible:enabled:first').focus()
            });
        })(django.jQuery);
    
{% endif %}

{# JavaScript for prepopulated fields #}
{% prepopulated_fields_js %}



{% endblock %}