对于删除功能的API不再工作,不会删除阵列什么? [英] API for delete function is not working anymore and doesn't remove anything from array?
问题描述
当我尝试从视图中删除一个职位显然表明,它被删除。然而,当我回去的路线提供我可以通过以下途径找到所有的数组previous成员。然而,当我在路由/职位不显示我的previous删除成员。有意思的是,那安舒页面后不显示我对我观点的记录了。
在下面的路线,后消失,而我从命令提示符尝试:
When i try to remove one post from view apparently shows that it is removed. However when i go back in providers route i can find all the previous member of array through below route . However when i am in route of /posts doesn't show me previous removed members. Interesting it is that after refreshing page it doesn't show me record on my view anymore. In following route, post disappear while i try it from command prompt :
/供应商/ 553b72c9f6d0020425d37f37 /岗位
router.get('/providers/:provider/posts', function(req, res) { Provider.findById(req.params.provider).select('posts').populate('posts').exec(function(err, provider) {
if(err){ return next(err); }
res.json(provider.posts);
});
});
然而,在这条路线,我能找到的帖子阵列9成员。似乎任何移除的不工作
However in this route, i can find posts array with 9 member. It seems that any of the removed doesn't work.
router.get('/providers', function(req, res, next) {
Provider.find(function(err, providers){
if(err){ return next(err); }
res.json(providers);
});
});
下面是在服务器端我删除功能:
Here is my remove function in server side:
router.delete('/providers/:provider/posts/:post',auth, function(req, res){
console.log("I ma running from server")
return Post.findById(req.params.post, function(err, post){
return post.remove(function(err){
if(!err){
Post.update({_id: post.provider}, {$pull : {posts : post._id}}, function(err, numberAffected){
console.log(numberAffected);
if(!err){
return console.log('removed post id');
} else {
return console.log(err);
}
});
console.log('post removed');
return res.send('');
} else{
console.log(err);
}
});
});
});
在这里,我有什么我厂里面客户端:
And here what i have inside my factory in client side:
ob.deletePost = function (provider_id,post_id) {
return $http.delete(urlBase +'/providers/' + provider_id +'/posts/' + post_id ,
{
headers: {Authorization: 'Bearer '+auth.getToken()}
});
};
和控制器中:
$scope.deletePost= function (provider_id,post_id) {
//console.log('PROVIDER',provider_id);
// console.log('POST',post_id);
// console.log('COMMENT',comment_id);
providers.deletePost(provider_id,post_id)
.success(function () {
$scope.status = 'Deleted Post! Refreshing post list.';
for (var i = 0; i < $scope.provider.posts.length; i++) {
var post = $scope.provider.posts[i];
// console.log(i,comment,comment_id)
//console.log(comment.ID);
if (post._id === post_id) {
//console.log(provider._id === provider_id)
// console.log(provider._id);
$scope.provider.posts.splice(i, 1);
//providers.getAllComments();
break;
}
}
// $scope.providers = null; // i am not sure how to write for comment as well?
})
.error(function (error) {
$scope.status = 'Unable to delete comment: ' + error.message;
});
};
这是我的观点的一部分:
And here is one part of my view:
<div ng-repeat="provider in providers"> <!-- | orderBy:'-upvotes'-->
<span class="glyphicon glyphicon-thumbs-up"
ng-click="incrementUpvotes(provider)"></span>
<span style="font-size:18px; margin-left:10px;">
{{provider.upvotes}} - <strong>{{provider.name}}</strong>
<span ng-if="provider.posts.length !== 0">
<a ui-sref="post({provider_id : provider._id})">{{provider.posts.length}} Posts </a>
<button class="btn btn-xs btn-info pull-right" ng-click="modalUpdateProvider('size',provider)">Edit</button>
</span>
从不 provider.posts.length 正在更新。对于看的供应商,并张贴意见您可以查看以下<一个href=\"http://stackoverflow.com/questions/29855111/how-query-api-to-get-all-the-data-for-third-level-of-path\">link.
谢谢你。
Never provider.posts.length is updating. For watching provider and post views you can review following link. Thank you.
推荐答案
我相信你使用了错误的模型在更新语句:
I believe you are using the wrong model in your update statement:
router.delete('/providers/:provider/posts/:post', auth, function(req, res) {
console.log("I ma running from server");
// NOTE: you could also include a where clause to ensure the
// provider ID matches as well. This would prevent someone from using any
// provider ID (inclduing one that doesn't exist) with a post ID.
return Post.findById(req.params.post, function(err, post) {
// Might want to check for an error here
console.log('post removed');
return post.remove(function(err) {
if (!err) {
//Post.update({
Provider.update({
_id: post.provider // or req.params.provider
}, {
$pull: {
posts: post._id
}
}, function(err, numberAffected) {
console.log(numberAffected);
if (!err) {
console.log('removed post id');
} else {
console.log(err);
}
return res.send('');
});
} else {
console.log(err);
}
});
});
});
此外,您还可以使用findByIdAndXXX方法以及内置的承诺,这些连锁在一起容易阅读:
Also, you could use the findByIdAndXXX methods as well as the built in promises to chain these together for easier readability:
router.delete('/providers/:provider/posts/:post', auth, function(req, res) {
console.log("I ma running from server");
// NOTE: you could also include a where clause to ensure the
// provider ID matches as well. This would prevent someone from using any
// provider ID (inclduing one that doesn't exist) with a post ID.
return Post.findByIdAndRemove(req.params.post).exec().then(function(post) {
console.log('post removed');
return Provider.findByIdAndUpdate(req.params.provider, {
$pull: {
posts: post._id
}
}, {
new: true
} // Return updated document
).exec(); // return promise to be evaluated for next handler
}).then(function(provider) {
console.log('removed post id');
res.send('');
}).then(null, function(err) {
console.log(err);
//might want to send a response error here
});
});
更新:使用WHERE子句,你需要切换到findOneAndXXX方式:
Update: to use a where clause you will need to switch to findOneAndXXX methods:
router.delete('/providers/:provider/posts/:post', auth, function(req, res) {
console.log("I am running from server");
return Post.findOneAndRemove({_id: req.params.post, provider_id: req.params.provider}).exec().then(function(post) {
console.log('post removed');
return Provider.findByIdAndUpdate(req.params.provider, {
$pull: {
posts: post._id // or req.params.post
}
}, {
new: true
} // Return updated document
).exec(); // return promise to be evaluated for next handler
}).then(function(provider) {
console.log('removed post id');
res.send('');
}).then(null, function(err) {
console.log(err);
//might want to send a response error here
});
});
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