Python and Django

23 Feb, 17

Make Your Developer's Life Easier By Reducing Number Of Opened Tabs in Pycharm

When coding, I often find myself overwhelmed by a number of opened tabs in my editor. I just seem to have opened every single .py file of a Django project. And it's kinda hard to find a way in this evergrowing of tabs.

Given that, I was really happy to ...

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22 Feb, 17

New in Django 1.11: Template-based widget rendering

There's a very interesting change coming with Django 1.11 - Template-based widget rendering.

To make customizing widgets easier, form widget rendering is now done using the template system. In older versions, widgets were rendered using Python.

You can get more details about it from the form rendering API docs page ...

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10 Feb, 17

How To Export Django Model Data Along With Its Parent Model Data via dumpdata Command

Django dumpdata command lets us export model objects as fixtures and to store them in json / xml formats.

All is good and works fine until you need to export a model that is a child of a concrete model and shares two database tables (one for parent another is for the ...

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02 Feb, 17

How To Remove Snippets Menu Item From Wagtail CMS Admin Menu

Put this hook into wagtail_hooks.py file of your Wagtail CMS app.

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  1. from wagtail.wagtailcore import hooks
  2. @hooks.register('construct_main_menu')
  3. def hide_snippets_menu_item(request, menu_items):
  4. menu_items[:] = [item for item in menu_items if item.name != 'snippets']

Restart your server and you're done!

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20 Jan, 17

Use Specific() Method On PageQuerySet To Access Referenced Model's Field Data in Wagtail CMS

Wagtail CMS provides a very handy content tree that really helps in organizing website's content hierarchy. The tree itself is powered by django-treebeard library (https://github.com/django-treebeard/django-treebeard). 

As a developer you should be aware of several handy methods that you can execute on any item of a ...

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18 Jan, 17

Override Field Widget Attributes in a Django Form or How To Add Placeholder Attribute to Django Form Input

Let's say we have a contact form and we want to add placeholders to this form inputs so our rendered form has these cool input labels. How do we do that?

My form is a child of ContactForm class provided by the django_contact_form module (https://github.com/ubernostrum/django-contact-form). The ...

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12 Jan, 17

There's Wagtail CMS Admin Styleguide Available

In case you didn't know and always been wondering about the next wagtail admin icon class, there's Wagtail CMS admin styleguide which comes with core packages. To enable it just update your INSTALLED_APPS config:

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  1. INSTALLED_APPS = [
  2. ...
  3. 'wagtail.contrib.wagtailstyleguide',
  4. ...
  5. ]

And you're ready to access the guide ...

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07 Oct, 16

"Error loading MySQLdb module Reason: image not found" error fix in El Capitan Mac OS

If you use mysql database in your Django project and when you run runserver command and get an error message similar to this: "Error loading MySQLdb module Reason: image not found" that means your El Capitan struggles to find necessary libraries. 

The issue can be fixed with these two ...

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16 Sep, 16

Installing cryptography (part of Scrapy) on Mac OS X

I'm leaving this tip as a note for myself, but I hope someone will find it useful too.

If you try to install Scrapy or cryptography on Mac OS X, your pip install will likely fail with the message similar to this:

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30 Jun, 15

Creating Custom Template Filter That Injects Adsense Ad Code After N Paragraph in Django

Injecting ads inside content is a very effective technique. Let's say you want to inject Adsense ad after the first paragraph of text. To add such capability to our Django-based website we need to create a custom filter for that. I'll tell you how to implement such a filter.

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