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50 lines
1.8 KiB
50 lines
1.8 KiB
import {CellValue} from "app/common/DocActions";
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import {ColumnFilterFunc} from "app/common/ColumnFilterFunc";
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import {FilterColValues} from 'app/common/ActiveDocAPI';
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import {isList} from 'app/common/gristTypes';
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import {decodeObject} from 'app/plugin/objtypes';
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import {ColumnGettersByColId} from 'app/common/ColumnGetters';
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export type RowFilterFunc<T> = (row: T) => boolean;
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// Builds RowFilter for a single column
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export function buildRowFilter<T>(
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getter: RowValueFunc<T> | null,
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filterFunc: ColumnFilterFunc | null): RowFilterFunc<T> {
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if (!getter || !filterFunc) {
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return () => true;
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}
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return (rowId: T) => filterFunc(getter(rowId));
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}
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export type RowValueFunc<T> = (rowId: T) => CellValue;
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// Filter rows for the purpose of linked widgets
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export function getLinkingFilterFunc(
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columnGetters: ColumnGettersByColId, {filters, operations}: FilterColValues
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): RowFilterFunc<number> {
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const colFuncs = Object.keys(filters).sort().map(
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(colId) => {
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const getter = columnGetters.getColGetterByColId(colId);
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if (!getter) { return () => true; }
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const values = new Set(filters[colId]);
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switch (operations[colId]) {
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case "intersects":
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return (rowId: number) => {
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const value = getter(rowId) as CellValue;
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return isList(value) &&
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(decodeObject(value) as unknown[]).some(v => values.has(v));
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};
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case "empty":
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return (rowId: number) => {
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const value = getter(rowId);
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// `isList(value) && value.length === 1` means `value == ['L']` i.e. an empty list
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return !value || isList(value) && value.length === 1;
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};
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case "in":
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return (rowId: number) => values.has(getter(rowId));
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}
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});
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return (rowId: number) => colFuncs.every(f => f(rowId));
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}
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