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這使我瘋了,請幫助我: 我正在使用最新的node.js與express,mongo和EJS 的有趣的事實是網站仍然有效就好在控制檯下面的錯誤後:'無法讀取未定義的屬性'EJS不呈現變量,雖然它被定義爲
Cannot read property 'parent_category_id' of undefined
at eval (eval at <anonymous> (E:\BITBUCKET repos\demo nodeJS\node_modules\ejs\lib\ejs.js:485:12), <anonymous>:20:27)
at returnedFn (E:\BITBUCKET repos\demo nodeJS\node_modules\ejs\lib\ejs.js:514:17)
at View.exports.renderFile [as engine] (E:\BITBUCKET repos\demo nodeJS\node_modules\ejs\lib\ejs.js:358:31)
at View.render (E:\BITBUCKET repos\demo nodeJS\node_modules\express\lib\view.js:126:8)
at tryRender (E:\BITBUCKET repos\demo nodeJS\node_modules\express\lib\application.js:639:10)
at EventEmitter.render (E:\BITBUCKET repos\demo nodeJS\node_modules\express\lib\application.js:591:3)
at ServerResponse.render (E:\BITBUCKET repos\demo nodeJS\node_modules\express\lib\response.js:961:7)
at E:\BITBUCKET repos\demo AndreiRadulescu nodeJS\Router.js:108:12
at handleCallback (E:\BITBUCKET repos\demo nodeJS\node_modules\mongodb\lib\utils.js:96:12)
at E:\BITBUCKET repos\demo
的NodeJS \ node_modules \ MongoDB的\ LIB \ cursor.js:851:16
我的路由器:
router.get(
'/:categ/:subCateg' ,
function (req , res)
{
var subC = req.params.subCateg;
var categ = req.params.categ;
req.app.locals.db.collection("categories")
.find
(
{ categories : { $elemMatch : { id : subC } } }
)
//gets only the categories we're interested in
.map(function (u) { return u.categories[ 0 ] })
.toArray
(
function (err , docs)
{
var toSend = docs[ 0 ];
//res.json(toSend);
res.render(
"subCategs" , {
_ : _ ,
docs : toSend ,
...
從res.json(toSend)的結果是什麼,我希望:
正如我前面提到的,的allmost一切工作儘管錯誤! 雖然得到/ api /時發生同樣的錯誤,
我懷疑有可能是一個問題,我的其他路線:
router.get(
'/:root/:topC/:prods' , function (req , res)...
router.get(
'/:root/:topC/:subC/:prodId' ,function (req , res)...
router.get(
'/api/:SOAPmethod' , function (req , res) ...
GET/
GET /mens/mens-clothing
GET /mens/mens-clothing/mens-clothing-suits
GET /mens/mens-clothing/mens-clothing-suits/25604524
GET /api/getall
TypeError: E:\BITBUCKET repos\demo nodeJS\views\subCategs.ejs:8
6| <title><%=title%></title>
7| <style>
>> 8| #<%=docs["parent_category_id"]%>
9| {
10| background: rgba(178, 190, 255, 0.9)
11| ;
Cannot read property 'parent_category_id' of undefined............
res.json(toSend)告訴我它已被定義? – user1311432