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https://github.com/gristlabs/grist-core.git
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(core) Port LinkingState.js to TypeScript
Summary: Converted LinkingState from constructor function to class. Test Plan: no Reviewers: dsagal Reviewed By: dsagal Differential Revision: https://phab.getgrist.com/D2997
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@ -14,8 +14,8 @@ var Base = require('./Base');
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var {Cursor} = require('./Cursor');
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var FieldBuilder = require('../widgets/FieldBuilder');
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var commands = require('./commands');
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var LinkingState = require('./LinkingState');
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var BackboneEvents = require('backbone').Events;
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const {LinkingState} = require('./LinkingState');
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const {ClientColumnGetters} = require('app/client/models/ClientColumnGetters');
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const {reportError, UserError} = require('app/client/models/errors');
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const {urlState} = require('app/client/models/gristUrlState');
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@ -131,13 +131,12 @@ function BaseView(gristDoc, viewSectionModel, options) {
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this._linkingState = this.autoDispose(koUtil.computedBuilder(() => {
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let v = this.viewSection;
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let src = v.linkSrcSection();
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const filterByAllShown = v.optionsObj.prop('filterByAllShown');
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if (!src.getRowId()) {
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return null;
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}
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try {
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const config = new LinkConfig(v);
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return LinkingState.create.bind(LinkingState, this.gristDoc, config, filterByAllShown());
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return LinkingState.create.bind(LinkingState, null, this.gristDoc, config);
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} catch (err) {
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console.warn(`Can't create LinkingState: ${err.message}`);
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return null;
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@ -1,145 +0,0 @@
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const _ = require('underscore');
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const ko = require('knockout');
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const dispose = require('../lib/dispose');
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const gutil = require('app/common/gutil');
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const {isRefListType} = require("app/common/gristTypes");
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/**
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* Returns if the first table is a summary of the second. If both are summary tables, returns true
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* if the second table is a more detailed summary, i.e. has additional group-by columns.
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* @param {MetaRowModel} summary: RowModel for the table to check for being the summary table.
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* @param {MetaRowModel} detail: RowModel for the table to check for being the detailed version.
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* @returns {Boolean} Whether the first argument is a summarized version of the second.
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*/
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function isSummaryOf(summary, detail) {
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let summarySource = summary.summarySourceTable();
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if (summarySource === detail.getRowId()) { return true; }
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let detailSource = detail.summarySourceTable();
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return (summarySource &&
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detailSource === summarySource &&
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summary.getRowId() !== detail.getRowId() &&
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gutil.isSubset(summary.summarySourceColRefs(), detail.summarySourceColRefs()));
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}
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/**
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* Maintains state useful for linking sections, i.e. auto-filtering and auto-scrolling.
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* Exposes .filterColValues, which is either null or a computed evaluating to a filtering object;
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* and .cursorPos, which is either null or a computed that evaluates to a cursor position.
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* LinkingState must be created with a valid srcSection and tgtSection.
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*
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* There are several modes of linking:
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* (1) If tgtColId is set, tgtSection will be filtered to show rows whose values of target column
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* are equal to the value of source column in srcSection at the cursor. With byAllShown set, all
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* values in srcSection are used (rather than only the value in the cursor).
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* (2) If srcSection is a summary of tgtSection, then tgtSection is filtered to show only those
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* rows that match the row at the cursor of srcSection.
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* (3) If tgtColId is null, tgtSection is scrolled to the rowId determined by the value of the
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* source column at the cursor in srcSection.
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*
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* @param gristDoc: GristDoc instance, for getting the relevant TableData objects.
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* @param srcSection: RowModel for the section that drives the target section.
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* @param srcColId: Name of the column that drives the target section, or null to use rowId.
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* @param tgtSection: RowModel for the section that's being driven.
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* @param tgtColId: Name of the reference column to auto-filter by, or null to auto-scroll.
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* @param byAllShown: For auto-filter, filter by all values in srcSection rather than only the
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* value at the cursor. The user can use column filters on srcSection to control what's shown
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* in the linked tgtSection.
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*/
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function LinkingState(gristDoc, linkConfig, byAllShown) {
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const {srcSection, srcColId, tgtSection, tgtCol, tgtColId} = linkConfig;
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this._srcSection = srcSection;
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let srcTableModel = gristDoc.getTableModel(srcSection.table().tableId());
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let srcTableData = srcTableModel.tableData;
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// Function from srcRowId (i.e. srcSection.activeRowId()) to the source value. It is used for
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// filtering or for cursor positioning, depending on the setting of tgtCol.
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let srcValueFunc = srcColId ? srcTableData.getRowPropFunc(srcColId) : _.identity;
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// If linking affects target section's cursor, this will be a computed for the cursor rowId.
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this.cursorPos = null;
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// If linking affects filtering, this is a computed for the current filtering state, as a
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// {[colId]: colValues} mapping, with a dependency on srcSection.activeRowId(). Otherwise, null.
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this.filterColValues = null;
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// A computed that evaluates to a filter function to use, or null if not filtering. If
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// filtering, depends on srcSection.activeRowId().
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if (tgtColId) {
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const operations = {[tgtColId]: isRefListType(tgtCol.type()) ? 'intersects' : 'in'};
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if (byAllShown) {
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// (This is legacy code that isn't currently reachable)
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// Include all values present in srcSection.
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this.filterColValues = this.autoDispose(ko.computed(() => {
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const srcValues = new Set();
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const viewInstance = srcSection.viewInstance();
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if (viewInstance) {
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for (const srcRowId of viewInstance.sortedRows.getKoArray().all()) {
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if (srcRowId !== 'new') {
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srcValues.add(srcValueFunc(srcRowId));
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}
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}
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}
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return {filters: {[tgtColId]: Array.from(srcValues)}};
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}));
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} else if (srcColId) {
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let srcRowModel = this.autoDispose(srcTableModel.createFloatingRowModel());
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let srcCell = srcRowModel.cells[srcColId];
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// If no srcCell, linking is broken; do nothing. This shouldn't happen, but may happen
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// transiently while the separate linking-related observables get updated.
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if (srcCell) {
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this.filterColValues = this.autoDispose(ko.computed(() => {
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const srcRowId = srcSection.activeRowId();
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srcRowModel.assign(srcRowId);
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return {filters: {[tgtColId]: [srcCell()]}, operations};
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}));
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}
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} else {
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this.filterColValues = this.autoDispose(ko.computed(() => {
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const srcRowId = srcSection.activeRowId();
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return {filters: {[tgtColId]: [srcRowId]}, operations};
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}));
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}
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} else if (isSummaryOf(srcSection.table(), tgtSection.table())) {
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// We filter summary tables when a summary section is linked to a more detailed one without
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// specifying src or target column. The filtering is on the shared group-by column (i.e. all
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// those in the srcSection).
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// TODO: This approach doesn't help cursor-linking (the other direction). If we have the
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// inverse of summary-table's 'group' column, we could implement both, and more efficiently.
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const isDirectSummary = srcSection.table().summarySourceTable() === tgtSection.table().getRowId();
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this.filterColValues = this.autoDispose(ko.computed(() => {
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const srcRowId = srcSection.activeRowId();
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const filters = {};
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const operations = {};
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for (const c of srcSection.table().groupByColumns()) {
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const col = c.summarySource();
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const colId = col.colId();
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const srcValue = srcTableData.getValue(srcRowId, colId);
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filters[colId] = [srcValue];
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if (isDirectSummary) {
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const tgtColType = col.type();
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if (tgtColType === 'ChoiceList' || tgtColType.startsWith('RefList:')) {
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operations[colId] = 'intersects';
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}
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}
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}
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return {filters, operations};
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}));
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} else if (isSummaryOf(tgtSection.table(), srcSection.table())) {
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// TODO: We should move the cursor, but don't currently it for summaries. For that, we need a
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// column or map representing the inverse of summary table's "group" column.
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} else {
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this.cursorPos = this.autoDispose(ko.computed(() => srcValueFunc(srcSection.activeRowId())));
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}
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}
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dispose.makeDisposable(LinkingState);
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/**
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* Returns a boolean indicating whether editing should be disabled in the destination section.
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*/
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LinkingState.prototype.disableEditing = function() {
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return this.filterColValues && this._srcSection.activeRowId() === 'new';
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};
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module.exports = LinkingState;
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145
app/client/components/LinkingState.ts
Normal file
145
app/client/components/LinkingState.ts
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@ -0,0 +1,145 @@
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import {GristDoc} from "app/client/components/GristDoc";
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import {DataRowModel} from "app/client/models/DataRowModel";
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import {TableRec} from "app/client/models/entities/TableRec";
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import {ViewSectionRec} from "app/client/models/entities/ViewSectionRec";
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import {LinkConfig} from "app/client/ui/selectBy";
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import {ClientQuery, QueryOperation} from "app/common/ActiveDocAPI";
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import {isRefListType} from "app/common/gristTypes";
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import * as gutil from "app/common/gutil";
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import {Disposable} from "grainjs";
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import * as ko from "knockout";
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import * as _ from "underscore";
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/**
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* Returns if the first table is a summary of the second. If both are summary tables, returns true
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* if the second table is a more detailed summary, i.e. has additional group-by columns.
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* @param summary: TableRec for the table to check for being the summary table.
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* @param detail: TableRec for the table to check for being the detailed version.
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* @returns {Boolean} Whether the first argument is a summarized version of the second.
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*/
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function isSummaryOf(summary: TableRec, detail: TableRec): boolean {
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const summarySource = summary.summarySourceTable();
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if (summarySource === detail.getRowId()) { return true; }
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const detailSource = detail.summarySourceTable();
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return (Boolean(summarySource) &&
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detailSource === summarySource &&
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summary.getRowId() !== detail.getRowId() &&
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gutil.isSubset(summary.summarySourceColRefs(), detail.summarySourceColRefs()));
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}
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type FilterColValues = Pick<ClientQuery, "filters" | "operations">;
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/**
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* Maintains state useful for linking sections, i.e. auto-filtering and auto-scrolling.
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* Exposes .filterColValues, which is either null or a computed evaluating to a filtering object;
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* and .cursorPos, which is either null or a computed that evaluates to a cursor position.
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* LinkingState must be created with a valid srcSection and tgtSection.
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*
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* There are several modes of linking:
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* (1) If tgtColId is set, tgtSection will be filtered to show rows whose values of target column
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* are equal to the value of source column in srcSection at the cursor. With byAllShown set, all
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* values in srcSection are used (rather than only the value in the cursor).
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* (2) If srcSection is a summary of tgtSection, then tgtSection is filtered to show only those
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* rows that match the row at the cursor of srcSection.
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* (3) If tgtColId is null, tgtSection is scrolled to the rowId determined by the value of the
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* source column at the cursor in srcSection.
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*
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* @param gristDoc: GristDoc instance, for getting the relevant TableData objects.
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* @param srcSection: RowModel for the section that drives the target section.
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* @param srcColId: Name of the column that drives the target section, or null to use rowId.
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* @param tgtSection: RowModel for the section that's being driven.
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* @param tgtColId: Name of the reference column to auto-filter by, or null to auto-scroll.
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* @param byAllShown: For auto-filter, filter by all values in srcSection rather than only the
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* value at the cursor. The user can use column filters on srcSection to control what's shown
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* in the linked tgtSection.
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*/
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export class LinkingState extends Disposable {
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public readonly cursorPos: ko.Computed<number> | null;
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public readonly filterColValues: ko.Computed<FilterColValues> | null;
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private _srcSection: ViewSectionRec;
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constructor(gristDoc: GristDoc, linkConfig: LinkConfig) {
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super();
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const {srcSection, srcColId, tgtSection, tgtCol, tgtColId} = linkConfig;
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this._srcSection = srcSection;
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const srcTableModel = gristDoc.getTableModel(srcSection.table().tableId());
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const srcTableData = srcTableModel.tableData;
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// Function from srcRowId (i.e. srcSection.activeRowId()) to the source value. It is used for
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// filtering or for cursor positioning, depending on the setting of tgtCol.
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const srcValueFunc = srcColId ? srcTableData.getRowPropFunc(srcColId)! : _.identity;
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// If linking affects target section's cursor, this will be a computed for the cursor rowId.
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this.cursorPos = null;
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// If linking affects filtering, this is a computed for the current filtering state, as a
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// {[colId]: colValues} mapping, with a dependency on srcSection.activeRowId(). Otherwise, null.
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this.filterColValues = null;
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// A computed that evaluates to a filter function to use, or null if not filtering. If
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// filtering, depends on srcSection.activeRowId().
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if (tgtColId) {
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const operations = {[tgtColId]: isRefListType(tgtCol.type()) ? 'intersects' : 'in' as QueryOperation};
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if (srcColId) {
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const srcRowModel = this.autoDispose(srcTableModel.createFloatingRowModel()) as DataRowModel;
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const srcCell = srcRowModel.cells[srcColId];
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// If no srcCell, linking is broken; do nothing. This shouldn't happen, but may happen
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// transiently while the separate linking-related observables get updated.
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if (srcCell) {
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this.filterColValues = this.autoDispose(ko.computed(() => {
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const srcRowId = srcSection.activeRowId();
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srcRowModel.assign(srcRowId);
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return {filters: {[tgtColId]: [srcCell()]}, operations} as FilterColValues;
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}));
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}
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} else {
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this.filterColValues = this.autoDispose(ko.computed(() => {
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const srcRowId = srcSection.activeRowId();
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return {filters: {[tgtColId]: [srcRowId]}, operations} as FilterColValues;
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}));
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}
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} else if (isSummaryOf(srcSection.table(), tgtSection.table())) {
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// We filter summary tables when a summary section is linked to a more detailed one without
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// specifying src or target column. The filtering is on the shared group-by column (i.e. all
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// those in the srcSection).
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// TODO: This approach doesn't help cursor-linking (the other direction). If we have the
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// inverse of summary-table's 'group' column, we could implement both, and more efficiently.
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const isDirectSummary = srcSection.table().summarySourceTable() === tgtSection.table().getRowId();
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this.filterColValues = this.autoDispose(ko.computed(() => {
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const result: FilterColValues = {filters: {}, operations: {}};
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const srcRowId = srcSection.activeRowId();
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for (const c of srcSection.table().groupByColumns()) {
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const col = c.summarySource();
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const colId = col.colId();
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const srcValue = srcTableData.getValue(srcRowId as number, colId);
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result.filters[colId] = [srcValue];
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if (isDirectSummary) {
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const tgtColType = col.type();
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if (tgtColType === 'ChoiceList' || tgtColType.startsWith('RefList:')) {
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result.operations![colId] = 'intersects';
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}
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}
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}
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return result;
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}));
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} else if (isSummaryOf(tgtSection.table(), srcSection.table())) {
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// TODO: We should move the cursor, but don't currently it for summaries. For that, we need a
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// column or map representing the inverse of summary table's "group" column.
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} else {
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this.cursorPos = this.autoDispose(ko.computed(() =>
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srcValueFunc(
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srcSection.activeRowId() as number
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) as number
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));
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}
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}
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/**
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* Returns a boolean indicating whether editing should be disabled in the destination section.
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*/
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public disableEditing(): boolean {
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return Boolean(this.filterColValues) && this._srcSection.activeRowId() === 'new';
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}
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}
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2
app/client/declarations.d.ts
vendored
2
app/client/declarations.d.ts
vendored
@ -308,7 +308,7 @@ declare module "app/client/models/DataTableModel" {
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constructor(docModel: DocModel, tableData: TableData, tableMetaRow: TableRec);
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public createLazyRowsModel(sortedRowSet: SortedRowSet, optRowModelClass: any):
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DataTableModel.LazyArrayModel<BaseRowModel>;
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public createFloatingRowModel(optRowModelClass: any): BaseRowModel;
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public createFloatingRowModel(optRowModelClass?: any): BaseRowModel;
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}
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export = DataTableModel;
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}
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@ -120,7 +120,7 @@ export class DataTableModelWithDiff extends DisposableWithEvents implements Data
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return this._wrappedModel.createLazyRowsModel(sortedRowSet, optRowModelClass);
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}
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public createFloatingRowModel(optRowModelClass: any): BaseRowModel {
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public createFloatingRowModel(optRowModelClass?: any): BaseRowModel {
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return this._wrappedModel.createFloatingRowModel(optRowModelClass);
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}
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