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55 lines
1.9 KiB
55 lines
1.9 KiB
import { ColumnGetter, ColumnGetters } from 'app/common/ColumnGetters';
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import * as gristTypes from 'app/common/gristTypes';
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import { safeJsonParse } from 'app/common/gutil';
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import { choiceGetter } from 'app/common/SortFunc';
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import { Sort } from 'app/common/SortSpec';
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/**
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*
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* An implementation of ColumnGetters for the server, currently
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* drawing on the data and metadata prepared for CSV export.
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*
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*/
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export class ServerColumnGetters implements ColumnGetters {
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private _rowIndices: Map<number, number>;
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private _colIndices: Map<number, string>;
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constructor(rowIds: number[], private _dataByColId: {[colId: string]: any}, private _columns: any[]) {
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this._rowIndices = new Map<number, number>(rowIds.map((rowId, index) => [rowId, index] as [number, number]));
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this._colIndices = new Map<number, string>(_columns.map(col => [col.id, col.colId] as [number, string]));
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}
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public getColGetter(colSpec: Sort.ColSpec): ColumnGetter | null {
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const colRef = Sort.getColRef(colSpec);
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const colId = this._colIndices.get(colRef);
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if (colId === undefined) {
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return null;
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}
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const col = this._dataByColId[colId];
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let getter = (rowId: number) => {
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const idx = this._rowIndices.get(rowId);
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if (idx === undefined) {
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return null;
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}
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return col[idx];
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};
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const details = Sort.specToDetails(colSpec);
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if (details.orderByChoice) {
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const rowModel = this._columns.find(c => c.id == colRef);
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if (rowModel?.type === 'Choice') {
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const choices: string[] = safeJsonParse(rowModel.widgetOptions, {}).choices || [];
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getter = choiceGetter(getter, choices);
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}
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}
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return getter;
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}
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public getManualSortGetter(): ((rowId: number) => any) | null {
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const manualSortCol = this._columns.find(c => c.colId === gristTypes.MANUALSORT);
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if (!manualSortCol) {
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return null;
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}
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return this.getColGetter(manualSortCol.id);
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}
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}
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