unserver-unify/src/app/common/util/searchHelper.service.js

'use strict';
angular.module('bamboo.common').service('searchHelper', function(oopHelper,$q) {
  var self = this;

  function SearchKeyCalculator() {}
  SearchKeyCalculator.prototype.calculate = function() {
    console.log('SearchKeyCalculator ...');
  };

  function TimeCalculator() {}
  oopHelper.extend(TimeCalculator, SearchKeyCalculator);
  //override
  TimeCalculator.prototype.calculate = function(obj) {
   console.log(obj);
    var condition = {};
    var flag = false;
    if (obj.timestart ||  obj.timestart == 0) {
      condition['$gte'] = obj.timestart;
      flag = true;
    }
    if (obj.timestop || obj.timestop == 0) {
      condition['$lte'] = obj.timestop;
      flag = true;
    }
    if (flag) {
      return condition;
    }
    console.log(condition);
    return undefined;
  }

  function PriceCalculator() {}
  oopHelper.extend(PriceCalculator, SearchKeyCalculator);
  //override
  PriceCalculator.prototype.calculate = function(obj) {
    console.info(obj);
    var condition = {};
    var flag = false;
    if (obj.minprice || obj.minprice === 0) {
      condition['$gte'] = obj.minprice;
      flag = true;
    }
    if (obj.maxprice || obj.maxprice === 0) {
      condition['$lte'] = obj.maxprice;
      flag = true;
    }
    console.info(condition);
    //condition['']
    if (flag) {
      return condition;
    }
    
    return undefined;
  }
  self.getSearchKeyCondtion = function(type,obj) {

    console.log(type,obj);
    //register
    var keyArr = ['Time','Price'];
    var strategy = {};
    angular.forEach(keyArr,function(key,idx){
       strategy[key] = eval("new " +key+'Calculator()');
    });
    var cond = strategy[type].calculate(obj);
    return cond;
  }
});