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import re
from django.db import connection, transaction
from django.db.models import Q
from forum.models.question import Question, QuestionManager
from forum.models.node import Node
from forum.modules import decorate
word_re = re.compile(r'\w+', re.UNICODE)
@decorate(QuestionManager.search, needs_origin=False)
def question_search(self, keywords):
tsquery = " | ".join(word_re.findall(keywords))
ilike = keywords + u"%%"
return '-ranking', self.extra(
tables = ['forum_rootnode_doc'],
select={
'ranking': """
rank_exact_matches(ts_rank_cd('{0.1, 0.2, 0.8, 1.0}'::float4[], "forum_rootnode_doc"."document", to_tsquery('english', %s), 32))
""",
},
where=["""
"forum_rootnode_doc"."node_id" = "forum_node"."id" AND ("forum_rootnode_doc"."document" @@ to_tsquery('english', %s) OR
"forum_node"."title" ILIKE %s)
"""],
params=[tsquery, ilike],
select_params=[tsquery],
)
@decorate(Node.delete)
def delete(origin, self, *args, **kwargs):
cursor = connection.cursor()
cursor.execute("DELETE FROM forum_rootnode_doc WHERE node_id = %s" % (self.id))
transaction.commit_unless_managed()
return origin(self, *args, **kwargs)