Files
PLSmartPivot/src/dataset.js
2021-01-05 09:13:46 +01:00

92 lines
2.8 KiB
JavaScript

import qlik from 'qlik';
function createCube (definition, app) {
return new Promise(resolve => {
app.createCube(definition, resolve);
});
}
async function buildDataCube (originCubeDefinition, originCube, app, requestPage) {
const cubeDefinition = {
...originCubeDefinition,
qInitialDataFetch: [
{
// eslint-disable-next-line no-undefined
qTop: requestPage === undefined ? 0 : requestPage[0].qTop,
qLeft: 0,
qHeight: 1000,
qWidth: originCube.qSize.qcx
}
],
qDimensions: [originCubeDefinition.qDimensions[0]],
qMeasures: originCubeDefinition.qMeasures
};
if (originCube.qDimensionInfo.length === 2) {
cubeDefinition.qDimensions.push(originCubeDefinition.qDimensions[1]);
}
const cube = await createCube(cubeDefinition, app);
const cubeMatrix = cube.qHyperCube.qDataPages[0].qMatrix;
app.destroySessionObject(cube.qInfo.qId);
return cubeMatrix;
}
export async function initializeDataCube (component, layout) {
if (component.backendApi.isSnapshot) {
return layout.snapshotData.dataCube;
}
const app = qlik.currApp(component);
const properties = (await component.backendApi.getProperties());
const rowCount = component.backendApi.getRowCount();
const cellCount = rowCount * layout.qHyperCube.qSize.qcx;
const maxLoops = layout.maxloops;
// If this is a master object, fetch the hyperCubeDef of the original object
let hyperCubeDef = properties.qExtendsId
? (await app.getObjectProperties(properties.qExtendsId)).properties.qHyperCubeDef
: properties.qHyperCubeDef;
hyperCubeDef = JSON.parse(JSON.stringify(hyperCubeDef));
hyperCubeDef.qStateName = layout.qStateName;
const pagedCube = {};
let lastRow = 0;
if (cellCount < (maxLoops * 10000)) {
for (let index = 0; cellCount > lastRow; index += 1) {
const requestPage = [
{
qHeight: 1000,
qLeft: 0,
qTop: lastRow,
qWidth: 10 // should be # of columns
}
];
// eslint-disable-next-line no-await-in-loop
pagedCube[index] = await buildDataCube(hyperCubeDef, layout.qHyperCube, app, requestPage);
lastRow = lastRow + 1000;
}
return pagedCube;
}
return null;
}
export function initializeDesignList (component, layout) {
if (component.backendApi.isSnapshot) {
return layout.snapshotData.designList;
}
if (!layout.stylingfield) {
return null;
}
return new Promise(resolve => {
const app = qlik.currApp(component);
const stylingField = app.field(layout.stylingfield);
const listener = function () {
const data = stylingField.rows.map(row => row.qText);
stylingField.OnData.unbind(listener);
resolve(data);
};
stylingField.OnData.bind(listener);
stylingField.getData({ rows: 5000 });
});
}