pagination_types.py
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# -*- coding: utf-8 -*-
from django.utils.encoding import force_unicode
from datetime import datetime
from django.contrib.auth.models import User
from django.forms import Form, ChoiceField, Select, ModelChoiceField, \
DateField, DateInput
from django.utils.translation import ugettext_lazy as _
from dictionary.models import Lexeme
from history.models import HistoryFrame
from patterns.models import Pattern
types = {}
def lexeme_history_list(params, user):
frames = HistoryFrame.objects.exclude(lexeme=None)
lexemes = Lexeme.filter_visible(Lexeme.all_objects, user).exclude(entry='')
frames = apply_history_filters(params, frames)
frames = frames.filter(lexeme__in=lexemes).order_by(params['order_by'])
return frames
def pattern_history_list(params, user):
frames = HistoryFrame.objects.exclude(pattern=None)
patterns = Pattern.all_objects.exclude(name__startswith=u'nowy wzór')
frames = apply_history_filters(params, frames)
frames = frames.filter(pattern__in=patterns).order_by(params['order_by'])
return frames
def apply_history_filters(params, frames):
for field, lookup, value in params['filters']:
if field == 'user':
if lookup == 'eq':
frames = frames.filter(user__pk=value)
elif lookup == 'ne':
frames = frames.exclude(user__username=value)
if field == 'time':
try:
date = datetime.strptime(value, force_unicode(_('%Y/%m/%d')))
if lookup == 'from':
frames = frames.filter(transaction_began__gte=date)
elif lookup == 'to':
frames = frames.filter(transaction_began__lte=date)
except ValueError:
pass
return frames
class HistoryFilterFieldForm(Form):
field = ChoiceField(
choices=[], label=u'', widget=Select(attrs={'class': 'field-choice'}))
def __init__(self, **kwargs):
super(HistoryFilterFieldForm, self).__init__(**kwargs)
filters = HISTORY_FILTERS
choices = [(key, value[0]) for key, value in filters.iteritems()]
self.fields['field'].choices = choices
class UserFilterForm(Form):
user = ModelChoiceField(
queryset=User.objects.order_by('username'), label=u'',
widget=Select(attrs={'class': 'value'}))
class TimeFilterForm(Form):
time = DateField(
input_formats=['%d.%m.%Y'], label=u'',
widget=DateInput(attrs={'class': 'datepicker value'}))
HISTORY_FILTERS = {
'user': (
_(u'User'),
[('eq', _(u'equals'))],
UserFilterForm,
),
'time': (
_(u'Date'),
[('from', _(u'from')), ('to', _(u'to'))],
TimeFilterForm,
),
}
def dummy_perm(user, object, action):
return True
types['lexeme_history'] = (
lexeme_history_list,
'lexeme_history_item.html',
dummy_perm,
{},
HISTORY_FILTERS,
HistoryFilterFieldForm,
)
types['pattern_history'] = (
pattern_history_list,
'pattern_history_item.html',
dummy_perm,
{},
HISTORY_FILTERS,
HistoryFilterFieldForm,
)