[英]How to delete specific data mongodb + nodejs + expressjs
How to remove data using node+express. 如何使用node + express删除数据。 Here is my router for delete process
这是我要删除的路由器
// Delete user
router.get('/deleteuser/:id', function(req, res) {
var db = req.db;
var uid = req.params.id;
db.collection('usercollection').remove(uid, function(err, result) {
res.send( (result === 1) ? { msg: '' } : { msg: 'error: '+ err } );
});
});
from the above function, i got 404 error page. 从上面的功能,我得到404错误页面。
Error: Not Found
at Layer.app.use.res.render.message [as handle] (/media/bcd44b6a-9c2e-4496-81da-b45d3c349c91/mywork/nodejs/blog/blogone/app.js:40:15)
at trim_prefix (/media/bcd44b6a-9c2e-4496-81da-b45d3c349c91/mywork/nodejs/blog/blogone/node_modules/express/lib/router/index.js:240:15)
at /media/bcd44b6a-9c2e-4496-81da-b45d3c349c91/mywork/nodejs/blog/blogone/node_modules/express/lib/router/index.js:208:9
at Function.proto.process_params (/media/bcd44b6a-9c2e-4496-81da-b45d3c349c91/mywork/nodejs/blog/blogone/node_modules/express/lib/router/index.js:269:12)
at next (/media/bcd44b6a-9c2e-4496-81da-b45d3c349c91/mywork/nodejs/blog/blogone/node_modules/express/lib/router/index.js:199:19)
at next (/media/bcd44b6a-9c2e-4496-81da-b45d3c349c91/mywork/nodejs/blog/blogone/node_modules/express/lib/router/index.js:176:38)
at /media/bcd44b6a-9c2e-4496-81da-b45d3c349c91/mywork/nodejs/blog/blogone/node_modules/express/lib/router/index.js:137:5
at /media/bcd44b6a-9c2e-4496-81da-b45d3c349c91/mywork/nodejs/blog/blogone/node_modules/express/lib/router/index.js:250:10
at next (/media/bcd44b6a-9c2e-4496-81da-b45d3c349c91/mywork/nodejs/blog/blogone/node_modules/express/lib/router/index.js:160:14)
at next_layer (/media/bcd44b6a-9c2e-4496-81da-b45d3c349c91/mywork/nodejs/blog/blogone/node_modules/express/lib/router/route.js:77:14)
What's wrong with my router code.. please help me. 我的路由器代码有什么问题..请帮助我。 i'm new to node & express
我是Node&Express的新手
finally i solved the problem here is my code: 终于我解决了问题,这是我的代码:
// Delete user
router.get('/deleteuser/:id', function(req, res) {
var db = req.db;
var uid = req.params.id.toString();
var collection = db.get('usercollection');
collection.remove({"_id":uid}, function(err, result) {
res.send( (result === 1) ? { msg: 'Deleted' } : { msg: 'error: '+ err } );
});
});
in the: 在里面:
db.collection('usercollection').remove({"_id":uid},function(err,result){
...
});
try this 尝试这个
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