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添加功能：pretest discuss user dashboard statistics
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const paginate = require('../lib/paginate');
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const problem = require('../model/problem');
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const contest = require('../model/contest');
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const user = require('../model/user');
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const discussion = require('../model/discussion');
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const {
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Route, Handler,
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} = require('../service/server');
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const {
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DiscussionNodeNotFoundError, DiscussionNotFoundError, DocumentNotFoundError,
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} = require('../error');
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const { constants } = require('../options');
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const {
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PERM_VIEW_DISCUSSION, PERM_EDIT_DISCUSSION, PERM_EDIT_DISCUSSION_REPLY,
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PERM_VIEW_PROBLEM_HIDDEN, PERM_DELETE_DISCUSSION, PERM_DELETE_DISCUSSION_REPLY,
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PERM_HIGHLIGHT_DISCUSSION, PERM_LOGGEDIN, PERM_CREATE_DISCUSSION,
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PERM_REPLY_DISCUSSION,
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} = require('../permission');
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class DiscussionHandler extends Handler {
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async _prepare({
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type, docId, did, drid, drrid,
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}) {
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this.checkPerm(PERM_VIEW_DISCUSSION);
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if (did) {
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this.ddoc = await discussion.get(did);
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if (!this.ddoc) throw new DiscussionNotFoundError(did);
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type = this.ddoc.type;
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docId = this.ddoc.parent;
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if (drid) {
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this.drdoc = await discussion.getReply(drid, did);
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if (!this.drdoc) throw new DiscussionNotFoundError(drid);
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if (this.drdoc.parent !== this.ddoc._id) throw new DocumentNotFoundError(drid);
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if (drrid) {
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[, this.drrdoc] = await discussion.getTailReply(drid, drrid);
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if (!this.drrdoc) throw new DiscussionNotFoundError(drrid);
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if (this.drrdoc.parent !== this.drdoc._id) throw new DocumentNotFoundError(drid);
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}
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}
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}
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// TODO(twd2): do more visibility check eg. contest
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// TODO(twd2): exclude problem/contest discussions?
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// TODO(iceboy): continuation based pagination.
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if (type && docId) {
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if (type === 'problem') {
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const pdoc = await problem.getById(docId);
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if (!pdoc) throw new DiscussionNodeNotFoundError(type, docId);
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if (pdoc.hidden) this.checkPerm(PERM_VIEW_PROBLEM_HIDDEN);
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this.title = pdoc.title;
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} else if (type === 'contest') {
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const tdoc = await contest.get(docId);
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if (!tdoc) throw new DiscussionNodeNotFoundError(type, docId);
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this.title = tdoc.title;
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} else throw new DiscussionNodeNotFoundError(type, docId);
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}
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}
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}
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class DiscussionMainHandler extends DiscussionHandler {
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async get({ page = 1 }) {
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const [ddocs, dpcount] = await paginate(discussion.getMulti(), page, constants.DISCUSSION_PER_PAGE);
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const udict = await user.getList(ddocs.map((ddoc) => ddoc.owner));
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this.response.template = 'discussion_main_or_node.html';
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this.response.body = {
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ddocs, dpcount, udict, page,
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};
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}
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}
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class DiscussionNodeHandler extends DiscussionHandler {
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async get({ type, docId, page = 1 }) {
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const [ddocs, dpcount] = await paginate(
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discussion.getMulti({ type, docId }),
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page,
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constants.DISCUSSION_PER_PAGE,
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);
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const udict = await user.getList(ddocs.map((ddoc) => ddoc.owner));
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const path = [
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['discussion_main', '/discuss'],
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[this.title, null, true],
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];
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this.response.template = 'discussion_main_or_node.html';
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this.response.body = {
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ddocs, dpcount, udict, path, page,
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};
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}
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}
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class DiscussionCreateHandler extends DiscussionHandler {
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async prepare() {
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this.checkPerm(PERM_LOGGEDIN);
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this.checkPerm(PERM_CREATE_DISCUSSION);
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}
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async get({ type, docId }) {
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const path = [
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['discussion_main', '/discuss'],
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[this.title, `/discuss/${type}/${docId}`, true],
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['discussion_create', null],
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];
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this.response.template = 'discussion_create.html';
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this.response.body = { path, title: this.title };
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}
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async post({
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type, docId, title, content, highlight,
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}) {
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this.limitRate('add_discussion', 3600, 30);
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const flags = {};
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if (highlight) {
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this.checkPerm(PERM_HIGHLIGHT_DISCUSSION);
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flags.highlight = true;
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}
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const did = await discussion.add(type, docId, this.user._id, title, content, this.request.ip, flags);
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this.response.body = { did };
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this.response.redirect = `/discuss/${did}`;
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}
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}
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class DiscussionDetailHandler extends DiscussionHandler {
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async get({ did, page = 1 }) {
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const dsdoc = this.user.hasPerm(PERM_LOGGEDIN)
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? await discussion.getStatus(did, this.user._id)
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: null;
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const [drdocs, pcount, drcount] = await paginate(
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discussion.getMultiReply(did),
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page,
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constants.REPLY_PER_PAGE,
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);
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const uids = drdocs.map((drdoc) => drdoc.owner);
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uids.push(this.ddoc.owner);
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for (const drdoc of drdocs) {
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if (drdoc.reply) {
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for (const drrdoc of drdocs) {
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uids.push(drrdoc.owner);
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}
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}
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}
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const udict = await user.getList(uids);
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const path = [
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['discussion_main', '/discuss'],
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[this.title, '/discuss/{type}', true],
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[this.ddoc.title, null, true],
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];
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this.response.template = 'discussion_detail.html';
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this.response.body = {
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path, ddoc: this.ddoc, dsdoc, drdocs, page, pcount, drcount, udict,
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};
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}
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async postReply({ did, content }) {
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this.checkPerm(PERM_LOGGEDIN);
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this.checkPerm(PERM_REPLY_DISCUSSION);
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this.limitRate('add_discussion', 3600, 30);
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await discussion.addReply(did, this.user._id, content, this.request.ip);
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this.back();
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}
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async postTailReply({ drid, content }) {
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this.checkPerm(PERM_LOGGEDIN);
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this.checkPerm(PERM_REPLY_DISCUSSION);
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this.limitRate('add_discussion', 3600, 30);
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await discussion.addTailReply(drid, this.user._id, content, this.request.ip);
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this.back();
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}
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async postEditReply({ drid, content }) {
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if (this.drdoc.owner !== this.user._id) this.checkPerm(PERM_EDIT_DISCUSSION_REPLY);
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await discussion.editReply(drid, content);
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this.back();
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}
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async postDeleteReply({ drid }) {
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if (this.drdoc.owner !== this.user._id) this.checkPerm(PERM_DELETE_DISCUSSION_REPLY);
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await discussion.deleteReply(drid);
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this.back();
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}
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async postEditTailReply({ drid, drrid, content }) {
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if (this.drdoc.owner !== this.user._id) this.checkPerm(PERM_EDIT_DISCUSSION_REPLY);
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await discussion.editTailReply(drid, drrid, content);
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this.back();
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}
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async postDeleteTailReply({ drid, drrid }) {
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if (this.drrdoc.owner !== this.user._id) this.checkPerm(PERM_DELETE_DISCUSSION_REPLY);
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await discussion.deleteTailReply(drid, drrid);
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this.back();
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}
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async postStar({ did, star }) {
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await discussion.setStar(did, this.user._id, true);
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this.response.body = { star };
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this.response.direct = this.request.path;
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}
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async postUnstar({ did, star }) {
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await discussion.setStar(did, this.user._id, false);
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this.response.body = { star };
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this.response.direct = this.request.path;
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}
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}
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class DiscussionDetailRawHandler extends DiscussionHandler {
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async get() {
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this.response.type = 'text/markdown';
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this.response.body = this.ddoc.content;
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}
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}
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class DiscussionReplyRawHandler extends DiscussionHandler {
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async get() {
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this.response.type = 'text/markdown';
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this.response.body = this.drdoc.content;
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}
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}
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class DiscussionTailReplyRawHandler extends DiscussionHandler {
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async get() {
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this.response.type = 'text/markdown';
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this.response.body = this.drrdoc.content;
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}
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}
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class DiscussionEditHandler extends DiscussionHandler {
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async get() {
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if (this.ddoc.owner !== this.user._id) this.checkPerm(PERM_EDIT_DISCUSSION);
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this.response.template = 'discussion_edit.html';
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this.response.body = { ddoc: this.ddoc };
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}
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async post({
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did, title, content, highlight, operation,
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}) {
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if (operation) return;
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if (this.ddoc.owner !== this.user._id) this.checkPerm(PERM_EDIT_DISCUSSION);
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if (highlight && !this.ddoc.highlight) this.checkPerm(PERM_HIGHLIGHT_DISCUSSION);
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await discussion.edit(did, title, content, highlight);
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this.response.body = { did };
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this.response.redirect = `/discuss/${did}`;
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}
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async postDelete({ did }) {
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if (this.ddoc.owner !== this.user._id) this.checkPerm(PERM_DELETE_DISCUSSION);
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await discussion.delete(did);
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this.response.body = { type: this.ddoc.type, parent: this.ddoc.parent };
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this.response.redirect = `/discuss/${this.ddoc.type}/${this.ddoc.parent}`;
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}
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}
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Route('/discuss', DiscussionMainHandler);
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Route('/discuss/:did', DiscussionDetailHandler);
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Route('/discuss/:did/edit', DiscussionEditHandler);
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Route('/discuss/:did/raw', DiscussionDetailRawHandler);
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Route('/discuss/:did/:drid/raw', DiscussionReplyRawHandler);
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Route('/discuss/:did/:drid/:drrid/raw', DiscussionTailReplyRawHandler);
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Route('/discuss/:type/:docId', DiscussionNodeHandler);
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Route('/discuss/:type/:docId/create', DiscussionCreateHandler);
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