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64 lines
1.6 KiB
Python
64 lines
1.6 KiB
Python
import datetime
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from urllib.parse import urlencode
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from django import template
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from django.utils import timezone
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register = template.Library()
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@register.filter
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def timedeltashort(value: datetime.datetime):
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"""
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A more compact version of timesince
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"""
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if not value:
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return ""
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delta = timezone.now() - value
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seconds = int(delta.total_seconds())
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sign = "-" if seconds < 0 else ""
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seconds = abs(seconds)
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days = abs(delta.days)
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if seconds < 60:
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text = f"{seconds:0n}s"
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elif seconds < 60 * 60:
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minutes = seconds // 60
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text = f"{minutes:0n}m"
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elif seconds < 60 * 60 * 24:
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hours = seconds // (60 * 60)
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text = f"{hours:0n}h"
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elif days < 365:
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text = f"{days:0n}d"
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else:
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years = max(days // 365.25, 1)
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text = f"{years:0n}y"
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return sign + text
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@register.filter
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def timedeltashortenddate(value: datetime.datetime):
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"""
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Formatter for end dates - timedeltashort but it adds "ended ... ago" or
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"left" depending on the direction.
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"""
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output = timedeltashort(value)
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if output.startswith("-"):
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return f"{output[1:]} left"
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else:
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return f"Ended {output} ago"
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@register.simple_tag(takes_context=True)
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def urlparams(context, **kwargs):
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"""
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Generates a URL parameter string the same as the current page but with
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the given items changed.
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"""
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params = dict(context["request"].GET.items())
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for name, value in kwargs.items():
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if value:
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params[name] = value
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elif name in params:
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del params[name]
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return urlencode(params)
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