Files @ 5380a510d53c
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Location: symposion_app/pinaxcon/templatetags/lca2018_tags.py

Joel Addison
Fix display of GST amount

Move GST rate to settings. Set to Australian GST rate.
import hashlib

from decimal import Decimal
from django import template
from django.conf import settings
from django.contrib.staticfiles.templatetags import staticfiles
from easy_thumbnails.files import get_thumbnailer
from registrasion.templatetags import registrasion_tags
from symposion.conference import models as conference_models
from symposion.schedule.models import Track

CONFERENCE_ID = settings.CONFERENCE_ID
GST_RATE = settings.GST_RATE

register = template.Library()


@register.assignment_tag()
def classname(ob):
    return ob.__class__.__name__


@register.simple_tag(takes_context=True)
def can_manage(context, proposal):
    return proposal_permission(context, "manage", proposal)


@register.simple_tag(takes_context=True)
def can_review(context, proposal):
    return proposal_permission(context, "review", proposal)


def proposal_permission(context, permname, proposal):
    slug = proposal.kind.section.slug
    perm = "reviews.can_%s_%s" % (permname, slug)
    return context.request.user.has_perm(perm)


@register.simple_tag(takes_context=False)
def illustration(name):
    return staticfiles.static('lca2018/images/') + name


@register.simple_tag(takes_context=True)
def speaker_photo(context, speaker, size):
    ''' Provides the speaker profile, or else fall back to libravatar or gravatar. '''

    if speaker.photo:
        thumbnailer = get_thumbnailer(speaker.photo)
        thumbnail_options = {'crop': True, 'size': (size, size)}
        thumbnail = thumbnailer.get_thumbnail(thumbnail_options)
        return thumbnail.url
    else:
        email = speaker.user.email.encode("utf-8")
        md5sum = hashlib.md5(email.strip().lower()).hexdigest()
        fallback_image = ("https://linux.conf.au/site_media/static/lca2017"
                          "/images/speaker-fallback-devil.jpg")
        url = "https://secure.gravatar.com/avatar/%s?s=%d&d=%s" % (md5sum, size, "mp")

        return url


@register.simple_tag()
def define(value):
    return value


@register.simple_tag()
def presentation_bg_number(presentation, count):
    return sum(ord(i) for i in presentation.title) % count


@register.filter()
def gst(amount):
    value_no_gst = Decimal(amount / (1 + GST_RATE))
    return Decimal(amount - value_no_gst).quantize(Decimal('0.01'))


@register.simple_tag()
def conference_name():
    return conference_models.Conference.objects.get(id=CONFERENCE_ID).title


@register.filter()
def day_has_tracks(timetable, day):
    try:
        track_names = day.track_set.all()
        has_tracks = True
    except Track.DoesNotExist:
        has_tracks = False
    return len(track_names)


@register.filter()
def trackname(room, day):
    try:
        track_name = room.track_set.get(day=day).name
    except Track.DoesNotExist:
        track_name = None
    return track_name


@register.simple_tag(takes_context=True)
def ticket_type(context):

    # Default to purchased ticket type (only item from category 1)
    items = registrasion_tags.items_purchased(context, 1)

    if not items:
        return "NO TICKET"

    item = next(iter(items))
    name = item.product.name
    if name == "Conference Volunteer":
        return "Volunteer"
    elif name == "Conference Organiser":
        return "Organiser"
    else:
        ticket_type = name


    # Miniconfs are secion 2
    # General sessions are section 1

    user = registrasion_tags.user_for_context(context)

    if hasattr(user, "speaker_profile"):
        best = 0
        for presentation in user.speaker_profile.presentations.all():
            if presentation.section.id == 1:
                best = 1
            if best == 0 and presentation.section.id == 2:
                best = 2
        if best == 1:
            return "Speaker"
        elif best == 2:
            return "Miniconf Org"

    if name == "Sponsor":
        return "Professional"
    elif name == "Fairy Penguin Sponsor":
        return "Professional"
    elif name == "Monday and Tuesday Only":
        return "Mon/Tue Only"

    # Default to product type
    return ticket_type