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PERF: Make mega topics work without a stream.

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There are tradeoffs that we took here. For the complete
story see
https://meta.discourse.org/t/performance-improvements-on-long-topics/30187/27?u=tgxworld.
This commit is contained in:
Guo Xiang Tan
2018-07-11 15:41:26 +08:00
parent de4d4747c4
commit 258e9e35ca
11 changed files with 473 additions and 69 deletions
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26
test/javascripts/helpers/create-pretender.js.es6
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@ -347,10 +347,28 @@ export default function() {
this.get("/t/:topic_id/posts.json", request => {
const postIds = request.queryParams.post_ids;
const posts = postIds.map(p => ({
id: parseInt(p),
post_number: parseInt(p)
}));
const postNumber = parseInt(request.queryParams.post_number);
let posts;
if (postIds) {
posts = postIds.map(p => ({
id: parseInt(p),
post_number: parseInt(p)
}));
} else if (postNumber && request.queryParams.asc === "true") {
posts = _.range(postNumber + 1, postNumber + 6).map(p => ({
id: parseInt(p),
post_number: parseInt(p)
}));
} else if (postNumber && request.queryParams.asc === "false") {
posts = _.range(postNumber - 5, postNumber)
.reverse()
.map(p => ({
id: parseInt(p),
post_number: parseInt(p)
}));
}
return response(200, { post_stream: { posts } });
});