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All done with only showing posts user is interested in

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Aaron Sun 2019-11-19 12:25:55 -05:00
parent 953d58ea12
commit 54ba36abeb
1 changed files with 31 additions and 21 deletions
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50
functions/handlers/post.js
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@ -65,36 +65,46 @@ exports.getallPosts = (req, res) => {
};
exports.getFollowedPosts = (req, res) => {
let posts = [];
var followers_list = admin.firestore().collection("users").doc(req.user.handle).collection("followedUsers");
var post_query = admin.firestore().collection("posts");
followers_list.get()
.then(function(allFollowers) {
var followers_likedTopics = new Map();
allFollowers.forEach(function(followers) {
var post_query = admin.firestore().collection("posts").where("userHandle", "==", followers.data().handle);
post_query.get()
.then(function(allPosts) {
allPosts.forEach(function(doc) {
var follow = false;
doc.data().microBlogTopics.forEach(function(topics) {
follow |= followers.data().followedTopics.includes(topics);
})
if(follow) {
posts.push(doc.data());
}
});
return res.status(200).json(posts);
})
.catch(function(err) {
res.status(500).send("Failed to retrieve posts from database.", err);
});
followers_likedTopics.set(followers.data().handle, followers.data().followedTopics);
});
post_query.get()
.then(function(allPosts) {
let posts = [];
allPosts.forEach(function(doc) {
if(doc.data().userHandle === req.user.handle) {
posts.push(doc.data());
}
if(followers_likedTopics.has(doc.data().userHandle)) {
//posts.push(doc.data());
doc.data().microBlogTopics.forEach(function(topic) {
if(followers_likedTopics.get(doc.data().userHandle).includes(topic)) {
posts.push(doc.data());
}
});
}
});
return res.status(200).json(posts);
})
.catch(function(err) {
res.status(500).send("Failed to retrieve any posts.", err);
});
//return res.status(200).json(posts);
})
.then(function() {
//res.status(200).send("Successfully retrieved all interesting posts from followed users.");
return;
})
.catch(function(err) {
res.status(500).send("Failed to retrieve any post.", err);
res.status(500).send("Failed to retrieve any posts.", err);
});
};