angular-pivot-table
Version:
Angular Pivot Table is a simple pivot table built in Angular. If data needs to be grouped by fields then check out this <a href="https://github.com/debabratapatra/ngtreegrid" target="_blank">ngtreegrid</a> Package. If header needs to be fixed/freezed and
65 lines • 8.6 kB
JavaScript
export class Store {
constructor() {
this.processed_data = [];
this.processed_headers = [];
}
getRawData() {
return this.raw_data;
}
setRawData(raw_data) {
this.raw_data = raw_data;
}
getProcessedData() {
return this.processed_data;
}
setProcessedData(processed_data) {
this.processed_data = processed_data;
}
getProcessedHeaders() {
return this.processed_headers;
}
processData(source, configs) {
this.setRawData(source);
const rows = this.findUnique(this.pluck(source, configs.rows));
const columns = this.findUnique(this.pluck(source, configs.columns));
this.processed_headers = [...columns];
for (let i = 0; i < rows.length; i++) {
const row = rows[i];
const processed_row = [row];
let row_count = 0;
for (let j = 0; j < columns.length; j++) {
const column = columns[j];
let count = 0;
for (let k = 0; k < source.length; k++) {
const data = source[k];
if (data[configs.rows] == row && data[configs.columns] == column) {
count++;
}
}
processed_row.push(count);
row_count += count;
}
processed_row.push(row_count);
this.processed_data.push(processed_row);
}
const summary_row = ['Total'];
for (let index = 1; index < this.processed_data[0].length; index++) {
this.addSummaryColumn(summary_row, index);
}
this.processed_data.push(summary_row);
}
addSummaryColumn(summary_row, index) {
summary_row.push(this.processed_data.map(data => data[index]).reduce((a, b) => a + b, 0));
}
findUnique(a) {
return a.filter(function (item, pos) {
return a.indexOf(item) == pos;
});
}
pluck(array, key) {
return array.map(function (obj) {
return obj[key];
});
}
}
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