def generate_field_counts(self, response, views, whoosh_query):
"""
Handles all the count by field value views for a query. All values of a
multiple-valued field are counted.
"""
logger.debug(self.tracking_code + " generating field counts for fields: %s" % (' '.join(v['field'] for v in views.itervalues())))
for view_id, view in views.iteritems():
response[view_id] = {'counts': {}}
logger.debug(self.tracking_code + " whoosh_query: " + repr(whoosh_query))
logger.debug(self.tracking_code + " view: " + json.dumps(views))
with self.whoosh_index.searcher() as searcher:
hits = searcher.search(whoosh_query, limit=None)
logger.info(self.tracking_code + " whoosh search results: %s" % (repr(hits)))
for hit in hits:
for view_id, view in views.iteritems():
field = view['field']
field = domain_config.field_name_aliases(field) or field
if field in hit:
values = set(v for v in whooshutils.split_keywords(hit[field]))
counts = response[view_id]['counts']
for value in values:
counts.setdefault(value, 0)
counts[value] += 1
for view_id, view in views.iteritems():
counts = response[view_id]['counts'].items()
counts.sort(key=lambda (v, c): c, reverse=True)
response[view_id]['counts'] = counts
def constraint_to_whoosh_query(self, cnstr):
"""
Produces a Whoosh query (using the python object format, not the text
format) representing a single constraint.
cnstr: The constraint as JSON (as python objects).
"""
type = cnstr['type']
if type == 'fieldvalue':
field = cnstr['field']
field = domain_config.field_name_aliases(field) or field
return whoosh.query.Term(
field, whooshutils.escape_keyword(cnstr['value']))
if type == 'textsearch':
return self.query_parser.parse(cnstr['value'])
elif type == "timerange":
low, high = cnstr['low'], cnstr['high']
return whoosh.query.NumericRange('year', low, high)
elif type == 'referencepoints':
return whoosh.query.Or([
whoosh.query.Term('referencePoints',
whooshutils.escape_keyword(p))
for p in cnstr['points']
])
elif type == 'tsneCoordinates':
return whoosh.query.Or(
[whoosh.query.Term('id', int(p)) for p in cnstr['points']])
else:
raise ValueError("unknown constraint type \"%s\"" % (type))
def constraint_to_whoosh_query(self, cnstr):
"""
Produces a Whoosh query (using the python object format, not the text
format) representing a single constraint.
cnstr: The constraint as JSON (as python objects).
"""
type = cnstr['type']
if type == 'fieldvalue':
field = cnstr['field']
field = domain_config.field_name_aliases(field) or field
return whoosh.query.Term(field, whooshutils.escape_keyword(cnstr['value']))
if type == 'textsearch':
return self.query_parser.parse(cnstr['value'])
elif type == "timerange":
low, high = cnstr['low'], cnstr['high']
return whoosh.query.NumericRange('year', low, high)
elif type == 'referencepoints':
return whoosh.query.Or([whoosh.query.Term('referencePoints', whooshutils.escape_keyword(p)) for p in cnstr['points']])
elif type == 'tsneCoordinates':
return whoosh.query.Or([whoosh.query.Term('id', int(p)) for p in cnstr['points']])
else:
raise ValueError("unknown constraint type \"%s\"" % (type))
def generate_field_counts(self, response, views, whoosh_query):
"""
Handles all the count by field value views for a query. All values of a
multiple-valued field are counted.
"""
logger.debug(self.tracking_code +
" generating field counts for fields: %s" %
(' '.join(v['field'] for v in views.itervalues())))
for view_id, view in views.iteritems():
response[view_id] = {'counts': {}}
logger.debug(self.tracking_code + " whoosh_query: " +
repr(whoosh_query))
logger.debug(self.tracking_code + " view: " + json.dumps(views))
with self.whoosh_index.searcher() as searcher:
hits = searcher.search(whoosh_query, limit=None)
logger.info(self.tracking_code + " whoosh search results: %s" %
(repr(hits)))
for hit in hits:
for view_id, view in views.iteritems():
field = view['field']
field = domain_config.field_name_aliases(field) or field
if field in hit:
values = set(
v for v in whooshutils.split_keywords(hit[field]))
counts = response[view_id]['counts']
for value in values:
counts.setdefault(value, 0)
counts[value] += 1
for view_id, view in views.iteritems():
counts = response[view_id]['counts'].items()
counts.sort(key=lambda (v, c): c, reverse=True)
response[view_id]['counts'] = counts
