Explanations:
- the series "is_*_of" was created 'cos it's easier write:
{% if 10|is_day_of:date and user %}
than write:{% ifequal date.day 10 %}{% if user %}...
- the series "inc/dec" is not complete, but can the extended to day, hour, minute, etc as you needs. It's util to inc 10 months since 05/31/2006 by example and get a 2007's date :)
Setup:
Insert the snippet into an_app/templatetags/datetimeutils.py.
Use in template:
{% load datetimeutils %}
and use filters as following:
{{ 30|is_day_of:a_date_time_variable }}
{{ 11|is_month_of:a_date_time_variable }}
{{ 2006|is_year_of:a_date_time_variable }}
{{ 58|is_minute_of:a_date_time_variable }}
{{ 23|is_hour_of:a_date_time_variable }}
{{ a_date_time_variable|dec_year:2 }}
{{ a_date_time_variable|dec_month:2 }}
{{ a_date_time_variable|inc_year:2 }}
{{ a_date_time_variable|inc_month:2 }}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | from django.template import Library
from datetime import datetime, timedelta
@register.filter
def is_day_of(value,arg):
return (arg and value) and arg.day == int(value)
@register.filter
def is_month_of(value,arg):
return (arg and value) and arg.month == int(value)
@register.filter
def is_year_of(value,arg):
return (arg and value) and arg.year == int(value)
@register.filter
def is_hour_of(value,arg):
return (arg and value) and arg.hour == int(value)
@register.filter
def is_minute_of(value,arg):
return (arg and value) and arg.minute == int(value)
@register.filter
def dec_year(value,arg):
delta = type(arg) != types.IntType and int(arg) or arg
return value - timedelta(365 * delta)
@register.filter
def dec_month(value,arg):
delta = type(arg) != types.IntType and int(arg) or arg
return value - timedelta(30 * delta)
@register.filter
def inc_year(value,arg):
delta = type(arg) != types.IntType and int(arg) or arg
return value + timedelta(365 * delta)
@register.filter
def inc_month(value,arg):
delta = type(arg) != types.IntType and int(arg) or arg
return value + timedelta(30 * delta)
|
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