truncate

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from django import template
register = template.Library()

@register.filter
def truncate(value, arg):
    """
    Truncates a string after a given number of chars  
    Argument: Number of chars to truncate after
    """
    try:
        length = int(arg)
    except ValueError: # invalid literal for int()
        return value # Fail silently.
    if not isinstance(value, basestring):
        value = str(value)
    if (len(value) > length):
        return value[:length] + "..."
    else:
        return value

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Comments

ajohnson (on April 9, 2007):

Perfect timing...I thought I was going to have to write this today.

I ended up editing it slightly so that it only includes the ellipsis when the string is too long.

if (len(value) > length):
    return value[:length] + "..."
else:
    return value

#

alfor (on April 21, 2007):

thanks, updated!

#

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