Calculated Field Aggregates (Vue)

PivotField 객체에는 사용자 정의 계산을 지원하는 두 가지 속성이 있습니다. getValue 속성은 데이터 항목(data item)을 매개 변수로 사용하고 데이터 항목의 다른 속성을 기반으로 계산 된 값을 반환하는 함수입니다. 이 함수는 집계(aggregate) 정보에 액세스 할 수 없습니다. 이 샘플은 getValue 함수를 사용하여 원본(Raw) 판매 값를 "높음", "중간"또는 "낮음"의 세 가지 수준으로 분류하는 Range 필드를 구현합니다.

getAggregateValue 속성은 요약 행(summary row)을 매개 변수로 사용하고 필드의 집계로 표시 할 값을 반환하는 함수입니다. 이 기능은 개별(individual)/원본(raw) 데이터 항목에 액세스 할 수 없습니다. 이 샘플은 getAggregateValue 함수를 사용하여 각 요약 행의 판매/다운로드 비율을 표시하는 Conversion 필드를 구현합니다.

OLAP 알아보기 | PivotPanel Documentation | PivotPanel API Reference

이 데모는 Vue를 기반으로합니다.

app.vue
index.html
data.js
<template> <div class="container-fluid"> <div class="row"> <div class="col-sm-6"> <wj-pivot-panel :itemsSource="ng"></wj-pivot-panel> </div> <div class="col-sm-6"> <wj-pivot-grid :itemsSource="ng"></wj-pivot-grid> </div> </div> </div> </template> <script setup> import "@mescius/wijmo.touch"; import { PivotEngine } from "@mescius/wijmo.olap"; import { getData } from "./data"; import { ref } from "vue"; const ng = ref( new PivotEngine({ autoGenerateFields: false, itemsSource: getData(10000), showColumnTotals: "GrandTotals", showRowTotals: "Subtotals", fields: [ { binding: "product", header: "Product" }, { binding: "date", header: "Date", format: 'yyyy "Q"q' }, { header: "Range", dataType: "String", aggregate: "Cnt", // use getValue to calculate the sales range (High, Medium, or Low) getValue: (item) => { let sales = item.sales; return sales <= 13 ? "Low" : sales >= 17 ? "High" : "Medium"; }, }, { binding: "sales", header: "Sales", format: "n0" }, { binding: "downloads", header: "Downloads", format: "n0" }, { header: "Conversion", dataType: "Number", format: "p0", // getAggregateValue computes an aggregate from a summary row (Sales/Downloads) getAggregateValue: (row) => (row.Downloads ? row.Sales / row.Downloads : 0), }, ], rowFields: ["Date", "Range"], valueFields: ["Sales", "Downloads", "Conversion"], }), ); </script> <style> .wj-pivotgrid { max-height: 400px; box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23); } .wj-pivotgrid .wj-cell.spark { padding: 8px; overflow: visible; } .wj-pivotgrid .wj-cell.spark svg { overflow: visible; stroke: currentColor; fill: currentColor; } .wj-pivotgrid .wj-cell.spark.spark-up svg { color: #009000; /* green for up */ } .wj-pivotgrid .wj-cell.spark.spark-down svg { color: #d00000; /* red for down */ } body { margin-bottom: 48pt; } </style>
<template> <div class="container-fluid"> <div class="row"> <div class="col-sm-6"> <wj-pivot-panel :itemsSource="ng"></wj-pivot-panel> </div> <div class="col-sm-6"> <wj-pivot-grid :itemsSource="ng"></wj-pivot-grid> </div> </div> </div> </template> <script setup> import "@mescius/wijmo.touch"; import { PivotEngine } from "@mescius/wijmo.olap"; import { getData } from "./data"; import { ref } from "vue"; const ng = ref( new PivotEngine({ autoGenerateFields: false, itemsSource: getData(10000), showColumnTotals: "GrandTotals", showRowTotals: "Subtotals", fields: [ { binding: "product", header: "Product" }, { binding: "date", header: "Date", format: 'yyyy "Q"q' }, { header: "Range", dataType: "String", aggregate: "Cnt", // use getValue to calculate the sales range (High, Medium, or Low) getValue: (item) => { let sales = item.sales; return sales <= 13 ? "Low" : sales >= 17 ? "High" : "Medium"; }, }, { binding: "sales", header: "Sales", format: "n0" }, { binding: "downloads", header: "Downloads", format: "n0" }, { header: "Conversion", dataType: "Number", format: "p0", // getAggregateValue computes an aggregate from a summary row (Sales/Downloads) getAggregateValue: (row) => (row.Downloads ? row.Sales / row.Downloads : 0), }, ], rowFields: ["Date", "Range"], valueFields: ["Sales", "Downloads", "Conversion"], }), ); </script> <style> .wj-pivotgrid { max-height: 400px; box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23); } .wj-pivotgrid .wj-cell.spark { padding: 8px; overflow: visible; } .wj-pivotgrid .wj-cell.spark svg { overflow: visible; stroke: currentColor; fill: currentColor; } .wj-pivotgrid .wj-cell.spark.spark-up svg { color: #009000; /* green for up */ } .wj-pivotgrid .wj-cell.spark.spark-down svg { color: #d00000; /* red for down */ } body { margin-bottom: 48pt; } </style>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo OLAP Field Calculated Aggregates</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="compiler.js" type="module"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app.js'); </script> </head> <body> <div id="app"> </div> </body> </html>
export function getData(cnt) { let year = new Date().getFullYear(), data = []; // for (let i = 0; i < cnt; i++) { data.push({ product: randomInt(0, 1) ? 'Wijmo' : 'Aoba', country: randomInt(0, 1) ? 'USA' : 'Japan', active: i % 2 == 0, date: new Date(year - randomInt(0, 2), randomInt(0, 11), randomInt(0, 27) + 1), sales: randomInt(10, 20), downloads: randomInt(10, 200) }); } // return data; } function randomInt(min, max) { return Math.floor(Math.random() * (max - min + 1) + min); }
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