2022-04-01 21:55:59 +00:00
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import {CellValue} from "app/common/DocActions";
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import {FilterState, makeFilterState} from "app/common/FilterState";
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import {decodeObject} from "app/plugin/objtypes";
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import {isList, isListType} from "./gristTypes";
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2021-05-27 11:06:26 +00:00
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export type ColumnFilterFunc = (value: CellValue) => boolean;
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// Returns a filter function for a particular column: the function takes a cell value and returns
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// whether it's accepted according to the given FilterState.
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2021-06-11 14:32:05 +00:00
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export function makeFilterFunc({ include, values }: FilterState,
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columnType?: string): ColumnFilterFunc {
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2021-05-27 11:06:26 +00:00
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// NOTE: This logic results in complex values and their stringified JSON representations as equivalent.
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// For example, a TypeError in the formula column and the string '["E","TypeError"]' would be seen as the same.
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// TODO: This narrow corner case seems acceptable for now, but may be worth revisiting.
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2021-06-11 14:32:05 +00:00
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return (val: CellValue) => {
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2022-04-01 21:55:59 +00:00
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if (isList(val) && columnType && isListType(columnType)) {
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2021-06-11 14:32:05 +00:00
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const list = decodeObject(val) as unknown[];
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return list.some(item => values.has(item as any) === include);
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}
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return (values.has(Array.isArray(val) ? JSON.stringify(val) : val) === include);
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};
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2021-05-27 11:06:26 +00:00
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}
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// Given a JSON string, returns a ColumnFilterFunc
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2021-06-11 14:32:05 +00:00
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export function buildColFilter(filterJson: string | undefined,
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columnType?: string): ColumnFilterFunc | null {
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return filterJson ? makeFilterFunc(makeFilterState(filterJson), columnType) : null;
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2021-05-27 11:06:26 +00:00
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}
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