138 lines
2.9 KiB
Python
138 lines
2.9 KiB
Python
# Copyright (c) 2023, Frappe Technologies Pvt. Ltd. and Contributors
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# MIT License. See license.txt
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import operator
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from collections.abc import Callable
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import frappe
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from frappe.database.utils import NestedSetHierarchy
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from frappe.model.db_query import get_timespan_date_range
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from frappe.query_builder import Field
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def like(key: Field, value: str) -> frappe.qb:
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"""Wrapper method for `LIKE`
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Args:
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key (str): field
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value (str): criterion
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Returns:
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frappe.qb: `frappe.qb object with `LIKE`
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"""
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return key.like(value)
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def func_in(key: Field, value: list | tuple) -> frappe.qb:
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"""Wrapper method for `IN`
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Args:
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key (str): field
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value (Union[int, str]): criterion
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Returns:
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frappe.qb: `frappe.qb object with `IN`
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"""
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if isinstance(value, str):
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value = value.split(",")
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return key.isin(value)
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def not_like(key: Field, value: str) -> frappe.qb:
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"""Wrapper method for `NOT LIKE`
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Args:
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key (str): field
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value (str): criterion
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Returns:
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frappe.qb: `frappe.qb object with `NOT LIKE`
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"""
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return key.not_like(value)
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def func_not_in(key: Field, value: list | tuple | str):
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"""Wrapper method for `NOT IN`
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Args:
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key (str): field
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value (Union[int, str]): criterion
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Returns:
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frappe.qb: `frappe.qb object with `NOT IN`
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"""
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if isinstance(value, str):
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value = value.split(",")
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return key.notin(value)
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def func_regex(key: Field, value: str) -> frappe.qb:
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"""Wrapper method for `REGEX`
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Args:
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key (str): field
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value (str): criterion
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Returns:
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frappe.qb: `frappe.qb object with `REGEX`
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"""
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return key.regex(value)
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def func_between(key: Field, value: list | tuple) -> frappe.qb:
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"""Wrapper method for `BETWEEN`
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Args:
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key (str): field
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value (Union[int, str]): criterion
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Returns:
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frappe.qb: `frappe.qb object with `BETWEEN`
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"""
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return key[slice(*value)]
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def func_is(key, value):
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"Wrapper for IS"
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return key.isnotnull() if value.lower() == "set" else key.isnull()
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def func_timespan(key: Field, value: str) -> frappe.qb:
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"""Wrapper method for `TIMESPAN`
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Args:
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key (str): field
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value (str): criterion
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Returns:
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frappe.qb: `frappe.qb object with `TIMESPAN`
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"""
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return func_between(key, get_timespan_date_range(value))
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# default operators
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OPERATOR_MAP: dict[str, Callable] = {
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"+": operator.add,
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"=": operator.eq,
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"-": operator.sub,
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"!=": operator.ne,
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"<": operator.lt,
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">": operator.gt,
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"<=": operator.le,
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"=<": operator.le,
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">=": operator.ge,
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"=>": operator.ge,
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"/": operator.truediv,
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"*": operator.mul,
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"in": func_in,
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"not in": func_not_in,
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"like": like,
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"not like": not_like,
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"regex": func_regex,
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"between": func_between,
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"is": func_is,
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"timespan": func_timespan,
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"nested_set": NestedSetHierarchy,
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# TODO: Add support for custom operators (WIP) - via filters_config hooks
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}
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