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Snippets by bcurtu

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Null Field Admin Filter

This patch adds a new admin Filter, for Filtering nullable fields. It adds 3 possible choices: 'All' (no filter), 'Null' (it applies field__isnull=True filter), and 'With Value' (it filters null values). This patch is interesting when you have a Integer or String fields and you want to filter wether a value is set or not. In other case, it would show too many filtering options. Remember this is a patch and you must modify a django file in `django/contrib/admin/filterspecs.py`

  • filter
  • admin
  • null
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counter templatetag

The counter initializes the variable to 0, and next it increments one by one: {% load counter_tag %} {% for pet in pets %} {% if pet.is_cat %} {% counter cats %} {% else %} {% counter dogs %} {% endif %} {% endfor %} # cats: {{cats}} # dogs: {{dogs}}

  • template
  • django
  • counter
  • increment
  • loop
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