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/**
* Created by cp2122 on 1/4/2018.
*/
import { Pipe, PipeTransform } from '@angular/core';
import * as _ from 'lodash';
@Pipe({
name: 'dataFilter'
})
export class DataFilterPipe implements PipeTransform {
transform(items: any, searchStr: string, keys?: string[][]): any {
if (items != null && items.length > 0 && !_.isNil(searchStr)) {
let ans = [];
if (_.isNil(keys) || keys.length === 0) {
keys = Object.keys(items[0]).map((key)=> new Array(key) );
}
for (const item of items) {
for(const key of keys) {
let val: string = DataFilterPipe.getDeepObjectValueByKeys(item, key);
if (!_.isNil(val) && val.toLowerCase().includes(searchStr.toLowerCase())) {
ans.push(item);
break;
}
}
}
return ans;
}
}
/**********************************************************************
get value from obj data by array of keys.
@keys: all table column and keys
@rowData : row data
************************************************************************/
static getDeepObjectValueByKeys(rowData: any , keys: string[]) : string {
let obj = rowData[keys[0]];
if(_.isNil(obj)) {
return obj;
}
for(let i = 1; i < keys.length ; i++){
obj = obj[keys[i]];
}
return obj.toString();
}
}
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