ive通过http://localhost:3000/update2?pureerId = 2299获取特定文档。
当我按提交将其重定向到/订单页面时,我可以在其中查看所有记录和当前字段。
如果我更改一个字段,然后单击提交,则不会与以前更新文档。
5个JSON Documents-http://prntscr.com/dilrb0
JS文件
router.get('/update2', function(req, res) {
var buyerID = req.query.buyerID;
if (!buyerID || !parseInt(buyerID)) {
res.render('error', {message: "You need to enter an ID to update a specific order", error:{status:"", stack: ""}});
} else {
mongoClient.connect(url, function (err, db) {
if (err) {
res.render('error', {message: "Failed to connect to MongoDB",error:{status:"", stack: ""}});
} else {
var WishList = db.collection('orders');
WishList.findOne({"buyerID": parseInt(buyerID)}, function(err, result) {
if (err || !result || result.length == 0) {
res.render('error', {message: "Failed to find order",error:{status:"", stack: ""}});
} else {
res.render('updateOrder2', {qs: result});
}
})
}
});
}
});
router.post('/update2', function(req, res) {
var buyerID = req.query.buyerID;
if (!buyerID || !parseInt(buyerID)) {
res.render('error', {message: "Failed to update order make sure the ID is current", error:{status:"", stack: ""}});
} else {
mongoClient.connect(url, function (err, db) {
if (err) {
res.render('error', {message: "Failed to connect to MongoDB", error:{status:"", stack: ""}});
} else {
var WishList = db.collection('orders');
var order = {
buyerID: req.body.buyerID,
gender: req.body.gender,
student: req.body.student,
pName: req.body.pName,
type: req.body.type,
purchaseDate: req.body.purchaseDate,
price: req.body.price,
sName: req.body.sName
};
console.log("Updating..", order)
WishList.updateOne({"buyerID": parseInt(buyerID)}, {$set: order}, function (err, result){
if (err) {
console.log("Cannot update", err)
} else {
console.log("Updated..", order)
res.redirect("/orders")
}
})
}
});
}
});
EJS
<!DOCTYPE html>
<html>
<head>
<title>Update Recipe</title>
<link rel='stylesheet' href='/stylesheets/style.css' />
</head>
<body>
<form name= "updateOrder" action="/updateOrder" method="POST">
User ID:<br>
<input type="text" name="buyerID" value = "<%=qs.buyerID%>" required ="required"><br>
Gender:<br>
<input type="text" name="gender" value = "<%=qs.gender%>" required ="required"><br>
Student?:<br>
<input type="text" name="student" value = "<%=qs.student%>" required ="required"><br>
Product ID:<br>
<input type="text" name="productID" value = "<%=qs.productID%>" required ="required"><br>
Product Name:<br>
<input type="text" name="pName" value = "<%=qs.pName%>" required ="required"><br>
Product Type:<br>
<input type="text" name="type" value = "<%=qs.type%>" required ="required"><br>
Date Purchased:<br>
<input type="text" name="purchaseDate" value = "<%=qs.purchaseDate%>" required ="required"><br>
Product Price:<br>
<input type="text" name="price" value = "<%=qs.price%>" required ="required"><br>
Seller Name:<br>
<input type="text" name="sName" value = "<%=qs.sName%>" required ="required"><br>
<br><br>
<input type="submit" value="Submit" />
</form>
</body>
</html>
我实际上对您仍在使用req.query.buyerid而不是req.body.buyerid的事实感到困惑显然仍然达到res.redirect("/orders");对于初学者,在您的更新中,尝试用parseint(order.buyerid)替换Parseint(ureerID) - Chris G 10小时前