Create a random integer with given length. - For a length of 3 it will be between 100 and 999. - For a length of 4 it will be between 1000 and 9999. Use it in a template like: {% random_number as my_id %} The id is {{ my_id }}
The problem with supplying a Django model field with choices parameter is the way you check a value of that field in an object. You do nasty things like this: if model_instance.choice_field == 1: The problem of getting rid of hard-coded numbers is recognized over the internet, but I haven't found any short and understandable solution. Basically, we need a enumeration in python, that is ok to use as the Django `choices` model field argument. I've seen a couple of solutions of DjangoSnippets. Mine is shorter and easier because it only works for integer field choices.
Converts an integer or floating-point number or a string to a string containing the delimiter character (default comma) after every delimeter_count digits (by default 3 digits)
See code
This accepts values such as $1,000,000 and stores them to the database as integers. It also re-renders them to the screen using the django.contrib.humanize.intcomma method which takes 1000000 and turns it into 1,000,000. Useful for large currency fields where the decimals aren't really necessary.
This function can be util for transform pattern lists like these to strings: >>> list_to_pattern([42, 43, 44, 45]) '42-45' >>> list_to_pattern([15, 49, 50, 51, 52]) '15,49-52' >>> list_to_pattern([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]) '0-13' You can use also the pattern to list function at [http://www.djangosnippets.org/snippets/495/](http://www.djangosnippets.org/snippets/495/)
This function can be util for transform pattern strings like these to list: >>> pattern_to_list('42-45') [42, 43, 44, 45] >>> pattern_to_list('15,49-52') [15, 49, 50, 51, 52] >>> pattern_to_list('0-13') [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13] You can use also the list to pattern function at [http://www.djangosnippets.org/snippets/496/](http://www.djangosnippets.org/snippets/496/)
7 snippets posted so far.