| author | Tero Marttila <terom@fixme.fi> |
| Sat, 08 Jan 2011 23:41:48 +0200 | |
| changeset 40 | 30a0a0fa8c54 |
| parent 39 | 4f331cfc76a4 |
| child 41 | 36d029a47d37 |
| permissions | -rw-r--r-- |
| 37 | 1 |
""" |
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Calendar view of orders |
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""" |
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from svv.controllers import PageHandler |
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from svv.html import tags |
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from svv import database as db |
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from svv import html |
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import datetime |
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import calendar |
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import logging |
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log = logging.getLogger('svv.cal')
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class CalendarView (PageHandler) : |
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""" |
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Single-month calendar view with events for given month shown |
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""" |
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# first date of week |
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FIRST_WEEKDAY = 6 |
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# year/month format for URLs |
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URL_FORMAT = "%Y-%m" |
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# formatting styles |
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MONTH_TITLE_FORMAT = "%B %Y" |
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@classmethod |
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def dayofweek_title (cls, dow) : |
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""" |
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Return day of week name for given dow number |
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""" |
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return calendar.day_name[dow] |
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@classmethod |
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def _wrap_year (cls, year, month) : |
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""" |
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Wraps month to between [1, 12], spilling overflow/underflow by to year. |
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Returns (year, month) |
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""" |
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# underflow? |
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if month == 0 : |
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# wrap to previous year |
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return (year - 1, 12) |
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# overflow? |
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elif month == 13 : |
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# wrap to next year |
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return (year + 1, 1) |
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# sane value |
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elif 1 <= month <= 12 : |
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return (year, month) |
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# insane value |
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else : |
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assert False, "invalid year/month: %d/%d" % (year, month) |
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@classmethod |
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def prev_month (cls, month) : |
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""" |
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Compute date for previous month. |
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""" |
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# normalize |
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y, m = cls._wrap_year(month.year, month.month - 1) |
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return datetime.date(y, m, 1) |
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@classmethod |
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def next_month (cls, month) : |
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""" |
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Compute date for following month. |
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""" |
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# normalize |
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y, m = cls._wrap_year(month.year, month.month + 1) |
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return datetime.date(y, m, 1) |
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def process (self, **foo) : |
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""" |
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Setup |
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""" |
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# db session |
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self.session = self.app.session() |
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def render_day_header (self, month, date) : |
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""" |
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Render <th> for day |
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""" |
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today = datetime.date.today() |
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classes = [] |
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if (date.year, date.month) == (month.year, month.month) : |
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# current month |
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classes.append('in-month')
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else : |
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classes.append('out-month')
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if date == today : |
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classes.append('today')
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class_ = ' '.join(classes) |
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return tags.th(date.day, class_=class_) |
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def get_events_for_interval (self, start, end) : |
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""" |
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Returns list of Order objects for given interval, ordered by start time. |
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""" |
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# XXX: bad imports |
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from orders import Order |
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return self.session.query(Order).filter( |
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(Order.event_start.between(start, end)) |
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| (Order.event_end.between(start, end)) |
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).order_by(Order.event_start).all() |
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def render_week (self, month, week) : |
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""" |
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Render day rows for given week. |
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""" |
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# XXX: nasty |
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from svv import urls |
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# load events for week |
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week_start = datetime.datetime.combine(min(week), datetime.time(0, 0, 0)) |
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week_end = datetime.datetime.combine(max(week), datetime.time(23, 59, 59)) |
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orders = self.get_events_for_interval(week_start, week_end) |
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log.debug("Render week %r -> %r: %d", week_start, week_end, len(orders))
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# day headers |
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yield tags.tr(class_='week-header')( |
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self.render_day_header(month, date) for date in week |
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) |
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# each even on its own row for now |
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for order in orders : |
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39
4f331cfc76a4
cal: span events across week's days
Tero Marttila <terom@fixme.fi>
parents:
37
diff
changeset
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# start/end date for this week |
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4f331cfc76a4
cal: span events across week's days
Tero Marttila <terom@fixme.fi>
parents:
37
diff
changeset
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start = min(date for date in week if order.on_date(date)) |
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4f331cfc76a4
cal: span events across week's days
Tero Marttila <terom@fixme.fi>
parents:
37
diff
changeset
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end = max(date for date in week if order.on_date(date)) |
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4f331cfc76a4
cal: span events across week's days
Tero Marttila <terom@fixme.fi>
parents:
37
diff
changeset
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4f331cfc76a4
cal: span events across week's days
Tero Marttila <terom@fixme.fi>
parents:
37
diff
changeset
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# as vector into week |
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4f331cfc76a4
cal: span events across week's days
Tero Marttila <terom@fixme.fi>
parents:
37
diff
changeset
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leading = (start - min(week)).days |
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4f331cfc76a4
cal: span events across week's days
Tero Marttila <terom@fixme.fi>
parents:
37
diff
changeset
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length = (end - start).days + 1 |
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4f331cfc76a4
cal: span events across week's days
Tero Marttila <terom@fixme.fi>
parents:
37
diff
changeset
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trailing = (max(week) - end).days |
| 37 | 163 |
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40
30a0a0fa8c54
cal: span events across weeks
Tero Marttila <terom@fixme.fi>
parents:
39
diff
changeset
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# continues prev/next? |
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30a0a0fa8c54
cal: span events across weeks
Tero Marttila <terom@fixme.fi>
parents:
39
diff
changeset
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prev = (start > order.event_start.date()) |
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30a0a0fa8c54
cal: span events across weeks
Tero Marttila <terom@fixme.fi>
parents:
39
diff
changeset
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next = (end < order.event_end.date()) |
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30a0a0fa8c54
cal: span events across weeks
Tero Marttila <terom@fixme.fi>
parents:
39
diff
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39
4f331cfc76a4
cal: span events across week's days
Tero Marttila <terom@fixme.fi>
parents:
37
diff
changeset
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log.debug("Event %r from %r -> %r", order.event_name, start, end)
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| 37 | 169 |
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4f331cfc76a4
cal: span events across week's days
Tero Marttila <terom@fixme.fi>
parents:
37
diff
changeset
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yield tags.tr(class_='week-data')( |
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4f331cfc76a4
cal: span events across week's days
Tero Marttila <terom@fixme.fi>
parents:
37
diff
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[tags.td("")] * leading,
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30a0a0fa8c54
cal: span events across weeks
Tero Marttila <terom@fixme.fi>
parents:
39
diff
changeset
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tags.td(colspan=length, class_=(' '.join(cls for cls in (
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30a0a0fa8c54
cal: span events across weeks
Tero Marttila <terom@fixme.fi>
parents:
39
diff
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'event', |
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30a0a0fa8c54
cal: span events across weeks
Tero Marttila <terom@fixme.fi>
parents:
39
diff
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'continues-prev' if prev else None, |
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30a0a0fa8c54
cal: span events across weeks
Tero Marttila <terom@fixme.fi>
parents:
39
diff
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'continues-next' if next else None, |
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30a0a0fa8c54
cal: span events across weeks
Tero Marttila <terom@fixme.fi>
parents:
39
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) if cls)))( |
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30a0a0fa8c54
cal: span events across weeks
Tero Marttila <terom@fixme.fi>
parents:
39
diff
changeset
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tags.a(href=self.url_for(urls.OrderView, id=order.id))( |
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30a0a0fa8c54
cal: span events across weeks
Tero Marttila <terom@fixme.fi>
parents:
39
diff
changeset
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tags.div(class_='arrow-left')("") if prev else None,
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30a0a0fa8c54
cal: span events across weeks
Tero Marttila <terom@fixme.fi>
parents:
39
diff
changeset
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order.event_name, |
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30a0a0fa8c54
cal: span events across weeks
Tero Marttila <terom@fixme.fi>
parents:
39
diff
changeset
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tags.div(class_='arrow-right')("") if next else None,
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30a0a0fa8c54
cal: span events across weeks
Tero Marttila <terom@fixme.fi>
parents:
39
diff
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) |
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4f331cfc76a4
cal: span events across week's days
Tero Marttila <terom@fixme.fi>
parents:
37
diff
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), |
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4f331cfc76a4
cal: span events across week's days
Tero Marttila <terom@fixme.fi>
parents:
37
diff
changeset
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[tags.td("")] * trailing,
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) |
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def render_calendar (self, month) : |
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""" |
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Render calendar for given date's month. |
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""" |
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cal = calendar.Calendar(self.FIRST_WEEKDAY) |
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# next/prev month |
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prev = self.prev_month(month) |
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next = self.next_month(month) |
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return tags.table(class_='calendar')( |
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tags.caption( |
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tags.a(href=self.url_for(CalendarView, yearmonth=prev.strftime(self.URL_FORMAT)), class_='prev-month')( |
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html.raw("«")
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), |
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month.strftime(self.MONTH_TITLE_FORMAT), |
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tags.a(href=self.url_for(CalendarView, yearmonth=next.strftime(self.URL_FORMAT)), class_='next-month')( |
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html.raw("»")
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), |
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), |
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# week-day headers |
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tags.thead( |
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tags.tr( |
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tags.th( |
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self.dayofweek_title(dow) |
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) for dow in cal.iterweekdays() |
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) |
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), |
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# month weeks |
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tags.tbody( |
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( |
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self.render_week(month, week) |
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) for week in cal.monthdatescalendar(month.year, month.month) |
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), |
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) |
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def render_content (self, yearmonth=None) : |
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""" |
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Render calendar HTML for given year/month. |
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""" |
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if yearmonth : |
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# requested month |
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month = datetime.datetime.strptime(yearmonth, self.URL_FORMAT).date() |
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else : |
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# this month |
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month = datetime.date.today() |
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return ( |
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self.render_calendar(month), |
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) |
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