@churchapps/helpers
Version:
Library of helper functions not specific to any one ChurchApps project or framework.
165 lines • 6.1 kB
JavaScript
import { UniqueIdHelper } from "./UniqueIdHelper.js";
export class ArrayHelper {
static getIds(array, propertyName) {
const result = [];
for (const item of array) {
const id = item[propertyName]?.toString();
if (!UniqueIdHelper.isMissing(id) && result.indexOf(id) === -1)
result.push(id);
}
return result;
}
static sortBy(array, propertyName, descending = false) {
array.sort((a, b) => {
const valA = a[propertyName];
const valB = b[propertyName];
if (valA < valB)
return descending ? 1 : -1;
else
return descending ? -1 : 1;
});
}
static getIndex(array, propertyName, value) {
for (let i = 0; i < array.length; i++) {
const item = array[i];
if (ArrayHelper.compare(item, propertyName, value))
return i;
}
return -1;
}
static getOne(array, propertyName, value) {
for (const item of array || [])
if (ArrayHelper.compare(item, propertyName, value))
return item;
return null;
}
static getAll(array, propertyName, value) {
const result = [];
for (const item of array || []) {
if (ArrayHelper.compare(item, propertyName, value))
result.push(item);
}
return result;
}
static getAllArray(array, propertyName, values) {
const result = [];
for (const item of array || [])
if (values.indexOf(item[propertyName]) > -1)
result.push(item);
return result;
}
static compare(item, propertyName, value) {
const propChain = propertyName.split(".");
if (propChain.length === 1)
return item[propertyName] === value;
else {
let obj = item;
for (let i = 0; i < propChain.length - 1; i++) {
if (obj && obj[propChain[i]] !== undefined)
obj = obj[propChain[i]];
else
return false;
}
return obj[propChain[propChain.length - 1]] === value;
}
}
static getUniqueValues(array, propertyName) {
const result = [];
for (const item of array) {
const val = (propertyName.indexOf(".") === -1) ? item[propertyName] : this.getDeepValue(item, propertyName);
if (result.indexOf(val) === -1)
result.push(val);
}
return result;
}
static getUnique(array) {
const result = [];
const jsonList = [];
for (const item of array) {
const json = JSON.stringify(item);
if (jsonList.indexOf(json) === -1) {
result.push(item);
jsonList.push(json);
}
}
return result;
}
static getAllOperatorArray(array, propertyName, values, operator, dataType = "string") {
const result = [];
values.forEach(v => {
const filtered = this.getAllOperator(array, propertyName, v, operator.replace("notIn", "notEqual").replace("in", "equals").replace("donatedToAny", "equals").replace("donatedTo", "equals").replace("attendedCampus", "equals").replace("attendedAny", "equals").replace("attendedServiceTime", "equals").replace("attendedService", "equals").replace("attendedGroup", "equals"), dataType);
filtered.forEach(f => result.push(f));
});
return result;
}
static getAllOperator(array, propertyName, value, operator, dataType = "string") {
const result = [];
for (const item of array) {
let propVal = item[propertyName] ?? "";
let compVal = value ?? "";
if (dataType === "number") {
propVal = parseFloat(propVal);
compVal = parseFloat(compVal);
}
else if (dataType === "string") {
propVal = String(propVal).toLowerCase();
compVal = String(compVal).toLowerCase();
}
switch (operator) {
case "equals":
if (propVal === compVal)
result.push(item);
break;
case "startsWith":
if (propVal.indexOf(compVal) === 0)
result.push(item);
break;
case "endsWith":
if (propVal.indexOf(compVal) === propVal.length - compVal.length)
result.push(item);
break;
case "contains":
if (propVal.indexOf(compVal) > -1)
result.push(item);
break;
case "greaterThan":
if (propVal > compVal)
result.push(item);
break;
case "greaterThanEqual":
if (propVal >= compVal)
result.push(item);
break;
case "lessThan":
if (propVal < compVal)
result.push(item);
break;
case "lessThanEqual":
if (propVal <= compVal)
result.push(item);
break;
case "notEqual":
if (propVal !== compVal)
result.push(item);
break;
}
}
return result;
}
static getDeepValue(item, propertyName) {
const propertyNames = propertyName.split(".");
let result = item;
propertyNames.forEach(name => {
if (result != null)
result = result[name];
});
return result;
}
static fillArray(contents, length) {
const result = [];
for (let i = 0; i < length; i++)
result.push(contents);
return result;
}
}
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