我想删除一个文档,然后在下一个 .then()
方法中删除另一个
虽然我不确定如何将值传递给下一个 .then()
方法?
exports.deleteJobPost = (req,res) => {
const document = db.collection("users").doc(req.user.username).collection("MyJobPosts").doc(req.params.jobPostId)
document.get().then(doc => {
if(!doc.exists){
return res.status(404).json({error: "Job Post Not Found"})
}
if(doc.data().username !== req.user.username){
//403 Forbidden
return res.status(403).json({error: "unauthorised"})
} else {
const state = doc.data().state
const category = "electrical"
console.log("this is state and category: " + state + " " + category)
const secondDocument = db.collection("JobPosts").doc(state).collection(category).doc(req.params.jobPostId);
return document.delete(),secondDocument.delete;
}
})
.then(() => {
res.json({message: `Job Post Deleted Successfully`})
})
}
答案 0 :(得分:1)
您当前的代码不需要最后一个 then()
,但在删除第一个文档后确实需要一个,下面的代码应该足以满足您的要求:
exports.deleteJobPost = (req,res) => {
const document = db.collection("users").doc(req.user.username).collection("MyJobPosts").doc(req.params.jobPostId)
document.get().then(doc => {
if(!doc.exists){
return res.status(404).json({error: "Job Post Not Found"})
}
if(doc.data().username !== req.user.username){
//403 Forbidden
return res.status(403).json({error: "unauthorised"})
} else {
const state = doc.data().state
const category = "electrical"
console.log("this is state and category: " + state + " " + category)
const secondDocument = db.collection("JobPosts").doc(state).collection(category).doc(req.params.jobPostId);
document.delete().then(() => {
secondDocument.delete().then(() => {
res.json({message: `Job Post Deleted Successfully`}) ;
});
});
}
})
}