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Add query operators to json api #74

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Add query operators to json api #74

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20 changes: 20 additions & 0 deletions safrs/jsonapi_filters.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,9 @@
"""
JSON:API filtering strategy
"""
import operator
import re

from .config import get_request_param
import sqlalchemy
import safrs
Expand Down Expand Up @@ -54,6 +57,23 @@ def jsonapi_filter(cls):
if expressions:
_expressions = []
for column, val in expressions:
pat1 = r"(?P<op1>[\>\<\=]+)(?P<val1>.+)(?P<bop1>(and)|(or))(?P<op2>[\>\<\=]+)(?P<val2>.+)"
pat2 = r"(?P<op1>[\>\<\=]+)(?P<val1>.+)"
op = {'<': operator.lt, '<=': operator.le, '>': operator.gt, '>=': operator.ge}
try:
m = re.match(pat1, val).groupdict()
op_ = sqlalchemy.or_ if m['bop1'].lower() == 'or' else sqlalchemy.and_
_expressions.append(op_(op[m['op1']](column, m['val1']), op[m['op2']](column, m['val2'])))
continue
except Exception as e:
pass
try:
m = re.match(pat2, val).groupdict()
_expressions.append(op[m['op1']](column, m['val1']))
continue
except Exception as e:
pass

if hasattr(column, "in_"):
_expressions.append(column.in_(val.split(",")))
else:
Expand Down