def build_keywords_query(keywords):
"""
Build parsers for a query.
:param MultiDict keywords: The search texts keyed by scope key. If empty,
the query will match every documents.
"""
queries = []
if keywords:
composer = current_app.config['KERKO_COMPOSER']
text_plugins = [
plugins.PhrasePlugin(),
plugins.GroupPlugin(),
plugins.OperatorsPlugin(
And=r"(?<=\s)" + re.escape(gettext("AND")) + r"(?=\s)",
Or=r"(?<=\s)" + re.escape(gettext("OR")) + r"(?=\s)",
Not=r"(^|(?<=(\s|[()])))" + re.escape(gettext("NOT")) + r"(?=\s)",
AndNot=None,
AndMaybe=None,
Require=None
),
plugins.BoostPlugin(),
]
for key, value in keywords.items(multi=True):
fields = [spec.key for spec in composer.fields.values() if key in spec.scopes]
if not fields:
raise KeyError # No known field for that scope key.
parser = MultifieldParser(
fields, schema=composer.schema, plugins=text_plugins
)
queries.append(parser.parse(value))
else:
queries.append(Every())
return And(queries)
def test_phrase():
p = default.QueryParser("t", None, [plugins.WhitespacePlugin(),
plugins.PhrasePlugin()])
assert_equal(repr(p.process('a "b c"')),
"<AndGroup <None:'a'>, <None:PhraseNode 'b c'~1>>")
assert_equal(repr(p.process('"b c" d')),
"<AndGroup <None:PhraseNode 'b c'~1>, <None:'d'>>")
assert_equal(repr(p.process('"b c"')),
"<AndGroup <None:PhraseNode 'b c'~1>>")
def test_phrase():
p = default.QueryParser("t", None, [plugins.WhitespacePlugin(),
plugins.PhrasePlugin()])
assert repr(p.process('a "b c"')) == "<AndGroup <None:'a'>, <None:PhraseNode 'b c'~1>>"
assert repr(p.process('"b c" d')) == "<AndGroup <None:PhraseNode 'b c'~1>, <None:'d'>>"
assert repr(p.process('"b c"')) == "<AndGroup <None:PhraseNode 'b c'~1>>"
q = p.parse('alfa "bravo charlie"~2 delta')
assert q[1].__class__ == query.Phrase
assert q[1].words == ["bravo", "charlie"]
assert q[1].slop == 2
def default_set(self):
"""Returns the default list of plugins to use.
"""
from whoosh.qparser import plugins
return [plugins.WhitespacePlugin(),
plugins.SingleQuotePlugin(),
plugins.FieldsPlugin(),
plugins.WildcardPlugin(),
plugins.PhrasePlugin(),
plugins.RangePlugin(),
plugins.GroupPlugin(),
plugins.OperatorsPlugin(),
plugins.BoostPlugin(),
plugins.EveryPlugin(),
]
def test_groups_with_range():
p = default.QueryParser("t", None, [
plugins.FieldsPlugin(),
plugins.GtLtPlugin(),
plugins.GroupPlugin(),
plugins.OperatorsPlugin(),
plugins.PhrasePlugin(),
plugins.RangePlugin(),
plugins.RegexPlugin()
])
ns = p.process('a:b OR e:>=5 g:<6')
assert repr(
ns
) == "<AndGroup <OrGroup <'a':'b'>, <'e':['5' None]>>, <'g':[None '6'}>>"
ns = p.process('a:b OR (e:>=5 g:<6)')
assert repr(
ns
) == "<AndGroup <OrGroup <'a':'b'>, <AndGroup <'e':['5' None]>, <'g':[None '6'}>>>>"
