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serializers/post - run promises in parallel

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now w/ opts.detail, returns my_reaction field as 'null' w/ no reaction
(before: field appears w/ some reaction)
This commit is contained in:
otofune 2017-11-05 22:13:28 +09:00
parent 78487934c7
commit 11190f56ad
2 changed files with 70 additions and 53 deletions
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1
package.json
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@ -95,6 +95,7 @@
"webpack": "3.8.1"
},
"dependencies": {
"@prezzemolo/rap": "^0.1.0",
"accesses": "2.5.0",
"animejs": "2.2.0",
"autwh": "0.0.1",

122
src/api/serializers/post.ts
View File

@ -12,6 +12,7 @@ import serializeChannel from './channel';
import serializeUser from './user';
import serializeDriveFile from './drive-file';
import parse from '../common/text';
import rap from '@prezzemolo/rap'
/**
* Serialize a post
@ -70,21 +71,21 @@ const self = (
}
// Populate user
_post.user = await serializeUser(_post.user_id, meId);
_post.user = serializeUser(_post.user_id, meId);
// Populate app
if (_post.app_id) {
_post.app = await serializeApp(_post.app_id);
_post.app = serializeApp(_post.app_id);
}
// Populate channel
if (_post.channel_id) {
_post.channel = await serializeChannel(_post.channel_id);
_post.channel = serializeChannel(_post.channel_id);
}
// Populate media
if (_post.media_ids) {
_post.media = await Promise.all(_post.media_ids.map(fileId =>
_post.media = Promise.all(_post.media_ids.map(fileId =>
serializeDriveFile(fileId)
));
}
@ -92,82 +93,97 @@ const self = (
// When requested a detailed post data
if (opts.detail) {
// Get previous post info
const prev = await Post.findOne({
user_id: _post.user_id,
_id: {
$lt: id
}
}, {
fields: {
_id: true
},
sort: {
_id: -1
}
});
_post.prev = prev ? prev._id : null;
_post.prev = (async () => {
const prev = Post.findOne({
user_id: _post.user_id,
_id: {
$lt: id
}
}, {
fields: {
_id: true
},
sort: {
_id: -1
}
});
return prev ? prev._id : null;
})()
// Get next post info
const next = await Post.findOne({
user_id: _post.user_id,
_id: {
$gt: id
}
}, {
fields: {
_id: true
},
sort: {
_id: 1
}
});
_post.next = next ? next._id : null;
_post.next = (async () => {
const next = await Post.findOne({
user_id: _post.user_id,
_id: {
$gt: id
}
}, {
fields: {
_id: true
},
sort: {
_id: 1
}
});
return next ? next._id : null;
})()
if (_post.reply_id) {
// Populate reply to post
_post.reply = await self(_post.reply_id, meId, {
_post.reply = self(_post.reply_id, meId, {
detail: false
});
}
if (_post.repost_id) {
// Populate repost
_post.repost = await self(_post.repost_id, meId, {
_post.repost = self(_post.repost_id, meId, {
detail: _post.text == null
});
}
// Poll
if (meId && _post.poll) {
const vote = await Vote
.findOne({
user_id: meId,
post_id: id
});
_post.poll = (async (poll) => {
const vote = await Vote
.findOne({
user_id: meId,
post_id: id
});
if (vote != null) {
const myChoice = _post.poll.choices
.filter(c => c.id == vote.choice)[0];
if (vote != null) {
const myChoice = poll.choices
.filter(c => c.id == vote.choice)[0];
myChoice.is_voted = true;
}
myChoice.is_voted = true;
}
return poll
})(_post.poll)
}
// Fetch my reaction
if (meId) {
const reaction = await Reaction
.findOne({
user_id: meId,
post_id: id,
deleted_at: { $exists: false }
});
_post.my_reaction = (async () => {
const reaction = await Reaction
.findOne({
user_id: meId,
post_id: id,
deleted_at: { $exists: false }
});
if (reaction) {
_post.my_reaction = reaction.reaction;
}
if (reaction) {
return reaction.reaction;
}
return null
})();
}
}
// resolve promises in _post object
_post = await rap(_post)
resolve(_post);
});