cache_form_qualifiers.py
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# -*- coding: utf-8 -*-
from django.db import connection
from django.db.transaction import atomic
from django.core.management.base import BaseCommand
from common.util import uniprint
from export.lexeme_form_query import WHERE_CLAUSES, \
attr_clauses_combinations, TABLE_FROM_CLAUSES
from dictionary.models import TableTemplate
class Command(BaseCommand):
help = 'Cache form qualifiers for filtering'
def handle(self, **options):
create_forms()
VARIANT = '1'
@atomic
def create_forms():
cursor = connection.cursor()
cursor.execute('''truncate dictionary_lexemeformqualifier''')
tts = TableTemplate.objects.filter(variant_id=VARIANT).prefetch_related(
'attributes__values', 'cell_attributes__values')
for tt in tts:
uniprint('caching ending qualifiers for: %s' % tt.name)
attr_clauses, cell_attr_combinations, tt_attr_combinations = \
attr_clauses_combinations(tt)
for tt_c in tt_attr_combinations:
for cell_c in cell_attr_combinations:
select_query = '''
select distinct l.id as lexeme_id,
kz.qualifier_id as qualifier_id
%s join kwalifikatory_zakonczen kz
on (z.id = kz.ending_id)
where %s and ''' % (TABLE_FROM_CLAUSES, WHERE_CLAUSES)
select_query += ' and '.join(attr_clauses)
cursor.execute('''
insert into dictionary_lexemeformqualifier
(lexeme_id, qualifier_id) (%s)''' % select_query,
(tt.id,) + tt_c + cell_c + cell_c)
print 'caching other qualifiers'
select_query = '''
select l.id as lexeme_id, kl.qualifier_id as qualifier_id
from leksemy l
join kwalifikatory_leksemow kl on l.id = kl.lexeme_id
union
select o.l_id as lexeme_id, ko.qualifier_id as qualifier_id
from odmieniasie o
join kwalifikatory_odmieniasiow ko
on o.id = ko.lexemeinflectionpattern_id
'''
cursor.execute('''
insert into dictionary_lexemeformqualifier (lexeme_id, qualifier_id)
(%s)''' % select_query)