Merge pull request #4064 from weseek/imprv/GW-6515-tag

display tags

src/client/js/components/Sidebar/RecentChanges.jsx

@@ -66,6 +66,15 @@ class RecentChanges extends React.Component {
       locked = <span><i className="icon-lock" /></span>;
     }
 
+    const tags = page.tags;
+    const tagElements = tags.map((tag) => {
+      return (
+        <a key={tag} href={`/_search?q=tag:${tag.name}`} className="grw-tag-label badge badge-secondary mr-2">
+          {tag.name}
+        </a>
+      );
+    });
+
     return (
       <li className="list-group-item p-2">
         <div className="d-flex w-100">
@@ -81,6 +90,7 @@ class RecentChanges extends React.Component {
               <span className="seen-user-count">{pageContainer.state.countOfSeenUsers}</span>
               <i className="icon-bubble"></i>
               <span>{page.commentCount}</span>
+              { tagElements }
               <br />
               <FormattedDistanceDate id={page.id} date={page.updatedAt} />
             </div>

src/server/models/page.js

@@ -767,7 +767,7 @@ module.exports = function(crowi) {
     // find
     builder.addConditionToPagenate(opt.offset, opt.limit, sortOpt);
     builder.populateDataToList(User.USER_FIELDS_EXCEPT_CONFIDENTIAL);
-    const pages = await builder.query.exec('find');
+    const pages = await builder.query.lean().exec('find');
 
     const result = {
       pages, totalCount, offset: opt.offset, limit: opt.limit,

src/server/routes/apiv3/pages.js

@@ -3,6 +3,7 @@ const loggerFactory = require('@alias/logger');
 const logger = loggerFactory('growi:routes:apiv3:pages'); // eslint-disable-line no-unused-vars
 const express = require('express');
 const pathUtils = require('growi-commons').pathUtils;
+const mongoose = require('mongoose');
 
 const { body } = require('express-validator');
 const { query } = require('express-validator');
@@ -308,6 +309,26 @@ module.exports = (crowi) => {
         }
       });
 
+      const PageTagRelation = mongoose.model('PageTagRelation');
+      const ids = result.pages.map((page) => { return page._id });
+      const relations = await PageTagRelation.find({ relatedPage: { $in: ids } }).populate('relatedTag');
+
+      // { pageId: [{ tag }, ...] }
+      const relationsMap = new Map();
+      // increment relationsMap
+      relations.forEach((relation) => {
+        const pageId = relation.relatedPage.toString();
+        if (!relationsMap.has(pageId)) {
+          relationsMap.set(pageId, []);
+        }
+        relationsMap.get(pageId).push(relation.relatedTag);
+      });
+      // add tags to each page
+      result.pages.forEach((page) => {
+        const pageId = page._id.toString();
+        page.tags = relationsMap.has(pageId) ? relationsMap.get(pageId) : [];
+      });
+
       return res.apiv3(result);
     }
     catch (err) {