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import datetime |
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import logging |
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from dateutil.parser import parse as date_parse |
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from sqlalchemy import Text |
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logger = logging.getLogger(__name__) |
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9
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search_operators = { |
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'=': lambda expr, value: expr == value, |
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'>': lambda expr, value: expr > value, |
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'>=': lambda expr, value: expr >= value, |
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'<': lambda expr, value: expr < value, |
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'<=': lambda expr, value: expr <= value, |
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} |
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def parse_query_value(combined_value): |
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"""Parse value in form of '>value' to a lambda and a value.""" |
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split = len(combined_value) - len(combined_value.lstrip('<>=')) |
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operator = combined_value[:split] |
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if operator == '': |
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operator = '=' |
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try: |
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operator_func = search_operators[operator] |
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except KeyError: |
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raise ValueError( |
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'Numeric query should start with operator, choose from %s' % |
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', '.join(search_operators.keys())) |
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value = combined_value[split:].strip() |
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return operator_func, value |
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def numeric_query(expr, value): |
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operator_func, value = parse_query_value(value) |
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if value == '': |
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num_value = 0 |
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else: |
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num_value = float(value) |
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return operator_func(expr, num_value) |
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def date_query(expr, value): |
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operator_func, value = parse_query_value(value) |
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try: |
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date_value = date_parse(value) |
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except ValueError: |
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date_value = datetime.datetime.now() |
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return operator_func(expr, date_value) |
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53
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54
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def yadcf_range_number(expr, value): |
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v_from, v_to = value.split('-yadcf_delim-') |
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v_from = float(v_from) if v_from != '' else -float('inf') |
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v_to = float(v_to) if v_to != '' else float('inf') |
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logger.debug('yadcf_range_number: between %f and %f', v_from, v_to) |
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return expr.between(v_from, v_to) |
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def yadcf_range_date(expr, value): |
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v_from, v_to = value.split('-yadcf_delim-') |
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v_from = date_parse(v_from) if v_from != '' else datetime.date.min |
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v_to = date_parse(v_to) if v_to != '' else datetime.date.max |
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logger.debug('yadcf_range_date: between %s and %s', v_from, v_to) |
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return expr.between(v_from, v_to) |
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70
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def yadcf_multi_select(expr, value): |
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options = value.split('|') |
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logger.debug('yadcf_multi_select: in %s', options) |
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return expr.cast(Text).in_(options) |
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75
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76
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SEARCH_METHODS = { |
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'none': lambda expr, value: None, |
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'string_contains': lambda expr, value: expr.ilike('%' + value + '%'), |
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'ilike': lambda expr, value: expr.ilike(value), |
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'like': lambda expr, value: expr.like(value), |
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'numeric': numeric_query, |
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'date': date_query, |
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'yadcf_text': lambda expr, value: expr.ilike('%' + value + '%'), |
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'yadcf_autocomplete': lambda expr, value: expr == value, |
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'yadcf_select': lambda expr, value: expr.ilike('%' + value + '%'), |
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'yadcf_multi_select': yadcf_multi_select, |
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'yadcf_range_number': yadcf_range_number, |
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'yadcf_range_number_slider': yadcf_range_number, |
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'yadcf_range_date': yadcf_range_date |
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} |
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Pegase745 /
sqlalchemy-datatables
