translate.pipe.ts

import { Pipe, PipeTransform } from '@angular/core';
import { TranslateService } from './translate.service';

@Pipe({
  name: 'translate'
})
export class TranslatePipe implements PipeTransform {
  constructor(private translateService: TranslateService) {}

  /* Pipe which translates term to the specified language
   * Parameter table specifies which table in the translations table should be used. */
  transform(term: string, language: string, table: string): Promise<string> {
    if (!term || !language || !table) {
      return Promise.resolve('');
    }
    const formattedTerm = this.encodeAsFirebaseKey(term);
    return this.translateService.translateFromEng(formattedTerm, language, table);
  }
}