概述
这是一个简单的报价应用程序。我目前正在开发主报价页面,在那里显示所有报价。
问题所在
我试图在主报价列表中显示客户名称。(见图)。该页面所依赖的数据位于两个表中:
1.报价--保存报价详细信息
1.客户--保存客户联系信息
这些表通过client_id连接(相关)
淘汰实施
我定义了一个类来保存引号:
let QuoteModel = function(id, quote_number, created_date, expiration_date, amount, client, status){
this.id = ko.observable();
this.quote_number = ko.observable(quote_number);
this.created_date = ko.observable(created_date);
this.expiration_date = ko.observable(expiration_date);
this.amount = ko.observable(amount);
this.client = ko.observable(client);
this.status = ko.observable(status);
}
和客户端类
let ClientModel = function(id, fullName){
this.id = ko.observable(id);
this.fullName = ko.observable(fullName);
}
在循环通过API导入的引号时,我获取了client_id,然后调用一个函数来搜索clients数组并返回客户机的全名。
我不知道如何成功地搜索客户端阵列并返回全名。
实时URL
您可以在此处看到代码失败:http://quotes.123globalelectronicsllc.com/quotes.html
视图模型
以下是视图模型:
// Quotes View Model
// +---------------------------------------------------------------------------+
// | Quote View Model |
// | |
// | quotes-view-model.js |
// +---------------------------------------------------------------------------+
// | Shows a list of all Quotes |
// +---------------------------------------------------------------------------+/
let QuoteModel = function(id, quote_number, created_date, expiration_date, amount, client, status){
this.id = ko.observable();
this.quote_number = ko.observable(quote_number);
this.created_date = ko.observable(created_date);
this.expiration_date = ko.observable(expiration_date);
this.amount = ko.observable(amount);
this.client = ko.observable(client);
this.status = ko.observable(status);
}
let ClientModel = function(id, fullName){
this.id = ko.observable(id);
this.fullName = ko.observable(fullName);
}
function QuoteViewModel() {
var self = this; // Scope Trick
/* QUOTE Observables */
self.quotes = ko.observableArray();
self.clients = ko.observableArray();
/* GET PAGE DATA */
/* CLIENTS */
$.getJSON(apiCustomersAll,
function(data) {
var fullName;
$.each(data,
function(key, val) {
fullName = val.first_name + " " + val.last_name;
self.clients.push(new ClientModel(val.id, fullName));
});
});
$.getJSON(apiQuotesAll,
function(data) {
var fullName;
$.each(data,
function(key, val) {
fullName = self.getClientById(val.client_id);
console.log(`Full name is ${fullName}`);
self.quotes.push(new QuoteModel(val.id,
val.quote_number,
val.created_date,
val.expiration_date,
val.amount,
fullName,
val.status
));
});
});
// Search Client Array, Return Full Name
self.getClientById = function(id){
$.each(self.clients(), function(key, val){
alert(val.fullName);
if(val.id() == id){
return val.fullName();
}
});
}
}
ko.applyBindings(new QuoteViewModel());
你能看出我哪里出错了吗?如果能提供帮助,我将不胜感激。
1条答案
按热度按时间jecbmhm31#
问题出在您的
getClientById
方法中,特别是您尝试搜索的方式中-您使用$.each
来检查元素:但是,您不能像尝试的那样从
$.each
返回。我们可以在一个特定的迭代中通过回调函数返回
false
来中断$.each()
循环。返回 non-false 与for循环中的continue
语句相同;它将立即跳到下一个迭代。您可以改用
Array#find
方法:使用一些ES6语法和short-circuiting,这甚至可以更短