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Pull ID from arbitrary sequence

Django does not currently allow one to pull ID values from arbitrarily named sequences. For example, if you did not create your ID column using the serial data type in PostgreSQL, you likely will not be able to use your sequences. This is quite a problem for those integrating with legacy databases. While ultimately the best place to fix this is django proper, this decorator will help people get by for now. Note that in this case, all of my sequences are named "pk_TABLENAME". You'll likely have a different convention and should update the decorator appropriately. While I could have made the pattern a parameter, it didn't seem like that would gain much here.

  • database
  • sequence
  • postgresql
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Use class name in templates

For use in templates: {% if object|classname:"entry" %} ... class="{{ object|classname }}" ... I couldn't find simpler solution for checking weather specific object belongs to specific class name, or just to output object's class name.

  • filter
  • classname
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linebreaksli template filter

This template filter will split a string of text on newlines and return a string of <li></li>s with a newline before every line. This is handy for taking a paragraph of text and making an <ol> or <ul> from its lines. Don't forget to register your filter with the template library first or the filter won't work.

  • filter
  • linebreaks
  • li
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render_markup filter, specify the markup filter as a string

Ever since django.contrib.markup appeared I've added a `markup_lang` field to my models where I want to support multiple input formats. This filter lets you pass the filter name as a string (from your model field, for example) and it will call the appropriate filter. I use None when the text is HTML, in which case it will return as-is. Example: class Article(models.Model): content = models.TextField(null=False, default="") markup_lang = models.CharField(maxlength=20, blank=True) a = Article(content="**Test!**", markup_lang='textile') b = Article(content="<h1>Hello!</h1>") And in a template: {% for article in article_list %} {{ article.content|render_markup:article.markup_lang }} {% endfor %}

  • filter
  • markup
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Url overrides and concurrent site versions

If you want to run multiple versions of a site from the same project IE a staging version and the live one, you need two settings and urlconf files. 1. make separate copies of settings_staging.py and urls_staging.py in the project dir. 2. Change SITE_ID and ROOT_URLCONF in settings_staging.py 3. Make extra include lines in the projects urls_staging.py like the example. 4. Add urls_staging.py to applications where you need extra urls. Make them just like you would normally do urls.py Thanks to ronny for suggesting the double entries in urlconf.

  • urlconf
  • staging
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Slice filter

Handy for things such as: `{{ some_string|slice:","|join:";" }}`

  • filter
  • string
  • slice
  • simple
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Create OpenOffice documents

This view will enable you to generate OpenOffice documents from templates written in OpenOffice 2.x Just make sure that there is no OO tag in between your code (no change in formatting etc.). content.xml is a valid XML file, so you can do some preprocessing using xml.dom.minidom. I would also recommend caching (just save the zip file without content.xml and content.xml on its own).

  • print
  • odf
  • office
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get_object_or_none

This utility is useful when you want to safely retrieve a single object from the database without having to wrap get() in a try/except block every time. It also supports query optimization via select_related and prefetch_related, making it ideal for performance-conscious applications.

  • orm
  • queryset
  • utils
  • select_related
  • get_or_none
  • prefetch_related
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Mask sensitive data from logger

This will help to secure the sensitive secrets, token, api keys, etc from logger. As we know there is security issue when we include the sensitive information to the logger in case logger got leaked/hacked. Before: ``` INFO ('192.168.1.1', 33321) - "WebSocket /ssh?token=abcdefg&width=20&heigh20" ``` After: ``` INFO ('192.168.1.1', 33321) - "WebSocket /ssh?token=********&width=20&heigh20" ```

  • django
  • security
  • logging
  • logger
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Browser-native date input field

Most modern browsers support the new `<input type="date">`, which allows inputting date using a browser-native date picker with built-in validation. This form widget utilizes this feature by setting the input type to "date" and by changing the value formatting as it should be in the ISO format. See more about `<input type="date">`: <https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/date>

  • forms
  • datefield
  • widget
  • input
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A wrapper around cache_page making it optional

Make `cache_page` optional, depending on the result of a callable. Uncomment the added lines if you want to make sure that the consumers don't know the page is cached – that means more hits on your end, but also a guarantee that they will always get the newest data asap.

  • cache
  • caching
  • cache_page
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