ajax_lexeme_slickgrid.py
8.36 KB
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
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
#-*- coding:utf-8 -*-
from hashlib import md5
from django.db.models import Count
from django.core.cache import cache
from dictionary.models import Lexeme, filter_visible, visible_vocabularies, LexemeAttribute
from dictionary.ajax_slickgrid import SlickGridQuery
from common.decorators import ajax
from common.util import bisect_left, reverse, json_encode
import locale
locale.setlocale(locale.LC_ALL, 'pl_PL.UTF-8')
class LexemeQuery(SlickGridQuery):
model = Lexeme
sort_field = 'entry'
filter_field_translation = {
'form': 'lexemeform__form',
'lexeme_qualifier': 'qualifiers__id',
'lip_qualifier': 'lexemeinflectionpattern__qualifiers__id',
'qualifier': 'qualifiers_cache__id',
'classification_value': 'classificationvalue__id',
'pattern_name': 'lexemeinflectionpattern__pattern__name',
'pattern_type': 'lexemeinflectionpattern__pattern__type_id',
'gender': 'lexemeinflectionpattern__gender_id',
'containing_vocabulary': 'vocabularies__id',
'owner_vocabulary': 'owner_vocabulary_id',
'pattern_count': 'pc',
'gender_count': 'gc',
'cr_type': 'refs_to__type_id',
}
def sort_queryset(self, queryset):
order_list = [self.sort_field, 'id']
if self.sort_rules[0] == 'a_tergo':
queryset = queryset.extra(select={'rev': "reverse(haslo)"})
order_list[0] = 'rev'
return queryset.extra(order_by=order_list)
def apply_filter_rule(self, queryset, rule):
lookup = self.lookup_translation[rule['op']]
negated = (lookup[0] == '-')
field, data = rule['field'], rule['data']
new_rule = dict(rule)
if field == 'pattern_count':
queryset = queryset.annotate(
pc=Count('lexemeinflectionpattern__pattern', distinct=True))
elif field == 'gender_count':
queryset = queryset.annotate(
gc=Count('lexemeinflectionpattern__gender', distinct=True))
elif field in ('lexeme_qualifier', 'lip_qualifier', 'qualifier'):
if int(data) == 0:
new_rule['op'] = 'isnull' if negated else '-isnull'
new_rule['data'] = False
elif field.startswith('extra'):
attr = LexemeAttribute.objects.get(id=int(field.split('-')[1]))
new_rule['field'] = 'lexemeav__attribute_value'
if attr.closed and int(data) == 0:
new_rule['op'] = 'in' if negated else '-in'
values = attr.values.all()
new_rule['data'] = tuple(values)
elif not attr.closed:
new_rule['field'] = 'value'
# lekki abuse
matching_values = super(LexemeQuery, self).apply_filter_rule(
attr.values, new_rule)
new_rule['field'] = 'lexemeav__attribute_value'
new_rule['op'] = 'in'
new_rule['data'] = tuple(matching_values)
return super(LexemeQuery, self).apply_filter_rule(queryset, new_rule)
def get_queryset(self):
lexemes = super(LexemeQuery, self).get_queryset()
return filter_visible(lexemes, self.user)
def apply_mask(self, lexemes):
if self.mask == '':
return lexemes
if self.sort_rules[0] == 'a_fronte':
matching_lexemes = lexemes.filter(entry__istartswith=self.mask)
else:
matching_lexemes = lexemes.filter(entry__iendswith=self.mask)
return matching_lexemes
# nieużywane
def filter_from(self, queryset, from_value, upward):
if self.sort_rules[0] == 'a_tergo':
if upward:
comp = '>='
else:
comp = '<='
return queryset.extra(where=["reverse(haslo) " + comp + " %s"],
params=[reverse(from_value)])
else:
return super(LexemeQuery, self).filter_from(
queryset, from_value, upward)
def response_row(self, lexeme):
lip_data = lexeme.lip_data()
cont_vocabs = '/'.join(v.id for v in lexeme.vocabularies.all())
return {
'id': lexeme.id,
'entry': lexeme.entry,
'pos': lexeme.part_of_speech.symbol,
'patterns': lip_data['patterns'],
'genders': lip_data['genders'],
'vocabs': cont_vocabs,
'owner': lexeme.owner_vocabulary.id,
'status': dict(Lexeme.STATUS_CHOICES).get(lexeme.status),
}
# indeks wiersza w danym sortowaniu, w którym
# znajdzie się rekord o danym id
def row_index(self, lexeme_id):
id_list = self.get_id_list()
if len(id_list) == 0:
return None
try:
return id_list.index(lexeme_id)
except ValueError:
return None
def search_index(self):
id_list = self.get_id_list()
count = len(id_list)
if count == 0:
return 0
index = bisect_left(id_list, self.mask, cmp=self.lexeme_cmp())
if index == count:
index -= 1
return index
def cache_key(self):
key = json_encode((self.sort_rules, self.filter), ensure_ascii=True)
for vocabulary in visible_vocabularies(self.user):
key += vocabulary.id
if self.filtering_mode():
key += self.mask
return md5(key).hexdigest()
def get_cached_lexemes(self):
key = self.cache_key()
cached = cache.get(key)
cache.set(key, cached)
return cached
def cache_lexemes(self, id_list):
key = self.cache_key()
cache.set(key, id_list)
key_list = cache.get('key_list', [])
if key not in key_list:
key_list.append(key)
cache.set('key_list', key_list)
def get_id_list(self, force_reload=False):
if not force_reload:
id_list = self.get_cached_lexemes()
else:
id_list = None
if id_list is None:
lexemes = self.get_sorted_queryset()
if 'rev' in lexemes.query.extra_select:
id_list = list(row[0] for row in lexemes.values_list('id', 'rev'))
else:
id_list = list(lexemes.values_list('id', flat=True))
self.cache_lexemes(id_list)
return id_list
def lexeme_cmp(self):
def fun(lexeme_id, mask):
e1 = Lexeme.objects.get(id=lexeme_id).entry
e2 = mask
if self.sort_rules[0] == 'a_tergo':
e1 = reverse(e1)
e2 = reverse(e2)
result = locale.strcoll(e1, e2)
return result
return fun
def export_list(self, columns, output_file):
lexemes = Lexeme.objects.filter(id__in=self.get_id_list())
for lexeme in prefetch(lexemes):
row = self.response_row(lexeme)
print >>output_file, '\t'.join(row[column] for column in columns)
# Zapytanie o indeks wiersza o pewnym id przy danym sortowaniu
@ajax(method='get')
def row_index(request, id, sort_rules, filter, mask):
query = LexemeQuery(
filter=filter, sort_rules=sort_rules, mask=mask, user=request.user)
return {'index': query.row_index(id)}
@ajax(method='get')
def search_index(request, sort_rules, filter, search=''):
query = LexemeQuery(
filter=filter, sort_rules=sort_rules, mask=search, user=request.user)
return {'index': query.search_index()}
@ajax(login_required=False, method='get')
def get_lexemes(request, from_page, to_page, rows, sort_rules, filter,
mask='', force_reload=False):
request.session['sort_rules'] = sort_rules
request.session['filter'] = filter
query = LexemeQuery(
filter=filter, sort_rules=sort_rules, mask=mask, user=request.user)
id_list = query.get_id_list(force_reload)
count = len(id_list)
start, response_rowcount = query.count_pages(from_page, to_page, rows)
sublist = id_list[start:start + response_rowcount]
lexemes_qs = prefetch(Lexeme.objects.filter(id__in=sublist))
lexemes_dict = dict((l.id, l) for l in lexemes_qs)
lexemes = [lexemes_dict[lexeme_id] for lexeme_id in sublist]
return {
'rows': query.prepare_rows(lexemes),
'count': count,
'page': from_page,
}
def prefetch(queryset):
return queryset.select_related(
'owner_vocabulary', 'part_of_speech').prefetch_related(
'lexemeinflectionpattern_set__pattern',
'lexemeinflectionpattern_set__gender', 'vocabularies')