Returning promise inside mongo db document schema
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0
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I have following problem: cannot read property 'then' of undefined.
Here is my code:
commentSchema.methods.saveIfMovieExist = function () {
const Comment = this;
Movie.findOne({imdbID: Comment.imdbID}).then(movie => {
if (!movie)
return Promise.reject();
return Comment.save();
}, err => {
return Promise.reject();
}); };
And then I have this request:
router.post('/', (req, res) => {
const comment = new Comment({
imdbID: req.body.imdbID,
text: req.body.text
});
comment.saveIfMovieExist(comment).then(doc => {
res.send(doc);
}, err => {
res.status(400).send(err);
});
});
I would like to check if movie with imdbID exist and if so insert comment to db. I am missing sth in chaining Promises but can not figure out what. Any ideas ?
javascript mongodb es6-promise
asked Nov 20 at 11:53
tedunioo24cm
163
add a comment |
up vote
0
down vote
favorite
I have following problem: cannot read property 'then' of undefined.
Here is my code:
commentSchema.methods.saveIfMovieExist = function () {
const Comment = this;
Movie.findOne({imdbID: Comment.imdbID}).then(movie => {
if (!movie)
return Promise.reject();
return Comment.save();
}, err => {
return Promise.reject();
}); };
And then I have this request:
router.post('/', (req, res) => {
const comment = new Comment({
imdbID: req.body.imdbID,
text: req.body.text
});
comment.saveIfMovieExist(comment).then(doc => {
res.send(doc);
}, err => {
res.status(400).send(err);
});
});
I would like to check if movie with imdbID exist and if so insert comment to db. I am missing sth in chaining Promises but can not figure out what. Any ideas ?
javascript mongodb es6-promise
asked Nov 20 at 11:53
tedunioo24cm
163
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I have following problem: cannot read property 'then' of undefined.
Here is my code:
commentSchema.methods.saveIfMovieExist = function () {
const Comment = this;
Movie.findOne({imdbID: Comment.imdbID}).then(movie => {
if (!movie)
return Promise.reject();
return Comment.save();
}, err => {
return Promise.reject();
}); };
And then I have this request:
router.post('/', (req, res) => {
const comment = new Comment({
imdbID: req.body.imdbID,
text: req.body.text
});
comment.saveIfMovieExist(comment).then(doc => {
res.send(doc);
}, err => {
res.status(400).send(err);
});
});
I would like to check if movie with imdbID exist and if so insert comment to db. I am missing sth in chaining Promises but can not figure out what. Any ideas ?
javascript mongodb es6-promise
asked Nov 20 at 11:53
tedunioo24cm
163
I have following problem: cannot read property 'then' of undefined.
Here is my code:
commentSchema.methods.saveIfMovieExist = function () {
const Comment = this;
Movie.findOne({imdbID: Comment.imdbID}).then(movie => {
if (!movie)
return Promise.reject();
return Comment.save();
}, err => {
return Promise.reject();
}); };
And then I have this request:
router.post('/', (req, res) => {
const comment = new Comment({
imdbID: req.body.imdbID,
text: req.body.text
});
comment.saveIfMovieExist(comment).then(doc => {
res.send(doc);
}, err => {
res.status(400).send(err);
});
});
I would like to check if movie with imdbID exist and if so insert comment to db. I am missing sth in chaining Promises but can not figure out what. Any ideas ?
javascript mongodb es6-promise
javascript mongodb es6-promise
asked Nov 20 at 11:53
tedunioo24cm
163
asked Nov 20 at 11:53
tedunioo24cm
163
asked Nov 20 at 11:53
tedunioo24cm
163
asked Nov 20 at 11:53
tedunioo24cm
163
asked Nov 20 at 11:53
tedunioo24cm
163
163
add a comment |
add a comment |
1 Answer
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1
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you are not returning the find function so first return that, after that you can return promise from it.
commentSchema.methods.saveIfMovieExist = function () {
const Comment = this;
return Movie.findOne({imdbID: Comment.imdbID}).then(movie => {
if (!movie)
return Promise.reject();
return Comment.save();
})
};
answered Nov 20 at 12:00
Muhammad Faizan
935525
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
you are not returning the find function so first return that, after that you can return promise from it.
commentSchema.methods.saveIfMovieExist = function () {
const Comment = this;
return Movie.findOne({imdbID: Comment.imdbID}).then(movie => {
if (!movie)
return Promise.reject();
return Comment.save();
})
};
answered Nov 20 at 12:00
Muhammad Faizan
935525
add a comment |
up vote
1
down vote
you are not returning the find function so first return that, after that you can return promise from it.
commentSchema.methods.saveIfMovieExist = function () {
const Comment = this;
return Movie.findOne({imdbID: Comment.imdbID}).then(movie => {
if (!movie)
return Promise.reject();
return Comment.save();
})
};
answered Nov 20 at 12:00
Muhammad Faizan
935525
add a comment |
up vote
1
down vote
up vote
1
down vote
you are not returning the find function so first return that, after that you can return promise from it.
commentSchema.methods.saveIfMovieExist = function () {
const Comment = this;
return Movie.findOne({imdbID: Comment.imdbID}).then(movie => {
if (!movie)
return Promise.reject();
return Comment.save();
})
};
answered Nov 20 at 12:00
Muhammad Faizan
935525
you are not returning the find function so first return that, after that you can return promise from it.
commentSchema.methods.saveIfMovieExist = function () {
const Comment = this;
return Movie.findOne({imdbID: Comment.imdbID}).then(movie => {
if (!movie)
return Promise.reject();
return Comment.save();
})
};
answered Nov 20 at 12:00
Muhammad Faizan
935525
answered Nov 20 at 12:00
Muhammad Faizan
935525
answered Nov 20 at 12:00
Muhammad Faizan
935525
answered Nov 20 at 12:00
Muhammad Faizan
935525
935525
add a comment |
add a comment |
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