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 809         </ul>
 810       </nav>
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 813
 814
 815
 816
 817
 818
 819
 820
 821
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 823     <li class="md-nav__item md-nav__item--nested">
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 825
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 838
 839
 840
 841
 842
 843     <li class="md-nav__item">
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 846       </a>
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 849
 850
 851
 852
 853
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 855
 856     <li class="md-nav__item md-nav__item--nested">
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 872
 873
 874
 875
 876     <li class="md-nav__item">
 877       <a href="../../../package/pip/" class="md-nav__link">
 878         Overview
 879       </a>
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 881
 882
 883
 884
 885
 886
 887
 888     <li class="md-nav__item">
 889       <a href="../../../package/pip/acl-option/" class="md-nav__link">
 890         aclOption
 891       </a>
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 895
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 897
 898
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 900     <li class="md-nav__item">
 901       <a href="../../../package/pip/acp-menu/" class="md-nav__link">
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 906
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 911
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 913       <a href="../../../package/pip/acp-search-provider/" class="md-nav__link">
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 919
 920
 921
 922
 923
 924     <li class="md-nav__item">
 925       <a href="../../../package/pip/acp-template/" class="md-nav__link">
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 927       </a>
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 929
 930
 931
 932
 933
 934
 935
 936     <li class="md-nav__item">
 937       <a href="../../../package/pip/bbcode/" class="md-nav__link">
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 939       </a>
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 943
 944
 945
 946
 947
 948     <li class="md-nav__item">
 949       <a href="../../../package/pip/box/" class="md-nav__link">
 950         box
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 954
 955
 956
 957
 958
 959
 960     <li class="md-nav__item">
 961       <a href="../../../package/pip/clipboard-action/" class="md-nav__link">
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 963       </a>
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 966
 967
 968
 969
 970
 971
 972     <li class="md-nav__item">
 973       <a href="../../../package/pip/core-object/" class="md-nav__link">
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 975       </a>
 976     </li>
 977
 978
 979
 980
 981
 982
 983
 984     <li class="md-nav__item">
 985       <a href="../../../package/pip/cronjob/" class="md-nav__link">
 986         cronjob
 987       </a>
 988     </li>
 989
 990
 991
 992
 993
 994
 995
 996     <li class="md-nav__item">
 997       <a href="../../../package/pip/event-listener/" class="md-nav__link">
 998         eventListener
 999       </a>
1000     </li>
1001
1002
1003
1004
1005
1006
1007
1008     <li class="md-nav__item">
1009       <a href="../../../package/pip/file/" class="md-nav__link">
1010         file
1011       </a>
1012     </li>
1013
1014
1015
1016
1017
1018
1019
1020     <li class="md-nav__item">
1021       <a href="../../../package/pip/language/" class="md-nav__link">
1022         language
1023       </a>
1024     </li>
1025
1026
1027
1028
1029
1030
1031
1032     <li class="md-nav__item">
1033       <a href="../../../package/pip/media-provider/" class="md-nav__link">
1034         mediaProvider
1035       </a>
1036     </li>
1037
1038
1039
1040
1041
1042
1043
1044     <li class="md-nav__item">
1045       <a href="../../../package/pip/menu/" class="md-nav__link">
1046         menu
1047       </a>
1048     </li>
1049
1050
1051
1052
1053
1054
1055
1056     <li class="md-nav__item">
1057       <a href="../../../package/pip/menu-item/" class="md-nav__link">
1058         menuItem
1059       </a>
1060     </li>
1061
1062
1063
1064
1065
1066
1067
1068     <li class="md-nav__item">
1069       <a href="../../../package/pip/object-type/" class="md-nav__link">
1070         objectType
1071       </a>
1072     </li>
1073
1074
1075
1076
1077
1078
1079
1080     <li class="md-nav__item">
1081       <a href="../../../package/pip/object-type-definition/" class="md-nav__link">
1082         objectTypeDefinition
1083       </a>
1084     </li>
1085
1086
1087
1088
1089
1090
1091
1092     <li class="md-nav__item">
1093       <a href="../../../package/pip/option/" class="md-nav__link">
1094         option
1095       </a>
1096     </li>
1097
1098
1099
1100
1101
1102
1103
1104     <li class="md-nav__item">
1105       <a href="../../../package/pip/page/" class="md-nav__link">
1106         page
1107       </a>
1108     </li>
1109
1110
1111
1112
1113
1114
1115
1116     <li class="md-nav__item">
1117       <a href="../../../package/pip/pip/" class="md-nav__link">
1118         pip
1119       </a>
1120     </li>
1121
1122
1123
1124
1125
1126
1127
1128     <li class="md-nav__item">
1129       <a href="../../../package/pip/script/" class="md-nav__link">
1130         script
1131       </a>
1132     </li>
1133
1134
1135
1136
1137
1138
1139
1140     <li class="md-nav__item">
1141       <a href="../../../package/pip/smiley/" class="md-nav__link">
1142         smiley
1143       </a>
1144     </li>
1145
1146
1147
1148
1149
1150
1151
1152     <li class="md-nav__item">
1153       <a href="../../../package/pip/sql/" class="md-nav__link">
1154         sql
1155       </a>
1156     </li>
1157
1158
1159
1160
1161
1162
1163
1164     <li class="md-nav__item">
1165       <a href="../../../package/pip/style/" class="md-nav__link">
1166         style
1167       </a>
1168     </li>
1169
1170
1171
1172
1173
1174
1175
1176     <li class="md-nav__item">
1177       <a href="../../../package/pip/template/" class="md-nav__link">
1178         template
1179       </a>
1180     </li>
1181
1182
1183
1184
1185
1186
1187
1188     <li class="md-nav__item">
1189       <a href="../../../package/pip/template-listener/" class="md-nav__link">
1190         templateListener
1191       </a>
1192     </li>
1193
1194
1195
1196
1197
1198
1199
1200     <li class="md-nav__item">
1201       <a href="../../../package/pip/user-group-option/" class="md-nav__link">
1202         userGroupOption
1203       </a>
1204     </li>
1205
1206
1207
1208
1209
1210
1211
1212     <li class="md-nav__item">
1213       <a href="../../../package/pip/user-menu/" class="md-nav__link">
1214         userMenu
1215       </a>
1216     </li>
1217
1218
1219
1220
1221
1222
1223
1224     <li class="md-nav__item">
1225       <a href="../../../package/pip/user-notification-event/" class="md-nav__link">
1226         userNotificationEvent
1227       </a>
1228     </li>
1229
1230
1231
1232
1233
1234
1235
1236     <li class="md-nav__item">
1237       <a href="../../../package/pip/user-option/" class="md-nav__link">
1238         userOption
1239       </a>
1240     </li>
1241
1242
1243
1244
1245
1246
1247
1248     <li class="md-nav__item">
1249       <a href="../../../package/pip/user-profile-menu/" class="md-nav__link">
1250         userProfileMenu
1251       </a>
1252     </li>
1253
1254
1255
1256         </ul>
1257       </nav>
1258     </li>
1259
1260
1261
1262
1263
1264
1265
1266     <li class="md-nav__item">
1267       <a href="../../../package/database-php-api/" class="md-nav__link">
1268         Database PHP API
1269       </a>
1270     </li>
1271
1272
1273
1274         </ul>
1275       </nav>
1276     </li>
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288     <li class="md-nav__item md-nav__item--nested">
1289
1290
1291         <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6" type="checkbox" id="__nav_6" >
1292
1293       <label class="md-nav__link" for="__nav_6">
1294         Migration
1295         <span class="md-nav__icon md-icon"></span>
1296       </label>
1297       <nav class="md-nav" aria-label="Migration" data-md-level="1">
1298         <label class="md-nav__title" for="__nav_6">
1299           <span class="md-nav__icon md-icon"></span>
1300           Migration
1301         </label>
1302         <ul class="md-nav__list" data-md-scrollfix>
1303
1304
1305
1306
1307
1308
1309     <li class="md-nav__item md-nav__item--nested">
1310
1311
1312         <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6_1" type="checkbox" id="__nav_6_1" >
1313
1314       <label class="md-nav__link" for="__nav_6_1">
1315         Migrating from WSC 5.3
1316         <span class="md-nav__icon md-icon"></span>
1317       </label>
1318       <nav class="md-nav" aria-label="Migrating from WSC 5.3" data-md-level="2">
1319         <label class="md-nav__title" for="__nav_6_1">
1320           <span class="md-nav__icon md-icon"></span>
1321           Migrating from WSC 5.3
1322         </label>
1323         <ul class="md-nav__list" data-md-scrollfix>
1324
1325
1326
1327
1328
1329     <li class="md-nav__item">
1330       <a href="../../../migration/wsc53/php/" class="md-nav__link">
1331         PHP API
1332       </a>
1333     </li>
1334
1335
1336
1337
1338
1339
1340
1341     <li class="md-nav__item">
1342       <a href="../../../migration/wsc53/session/" class="md-nav__link">
1343         Session Handling and Authentication
1344       </a>
1345     </li>
1346
1347
1348
1349
1350
1351
1352
1353     <li class="md-nav__item">
1354       <a href="../../../migration/wsc53/javascript/" class="md-nav__link">
1355         JavaScript
1356       </a>
1357     </li>
1358
1359
1360
1361
1362
1363
1364
1365     <li class="md-nav__item">
1366       <a href="../../../migration/wsc53/templates/" class="md-nav__link">
1367         Templates
1368       </a>
1369     </li>
1370
1371
1372
1373
1374
1375
1376
1377     <li class="md-nav__item">
1378       <a href="../../../migration/wsc53/libraries/" class="md-nav__link">
1379         Third Party Libraries
1380       </a>
1381     </li>
1382
1383
1384
1385         </ul>
1386       </nav>
1387     </li>
1388
1389
1390
1391
1392
1393
1394
1395
1396     <li class="md-nav__item md-nav__item--nested">
1397
1398
1399         <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6_2" type="checkbox" id="__nav_6_2" >
1400
1401       <label class="md-nav__link" for="__nav_6_2">
1402         Migrating from WSC 5.2
1403         <span class="md-nav__icon md-icon"></span>
1404       </label>
1405       <nav class="md-nav" aria-label="Migrating from WSC 5.2" data-md-level="2">
1406         <label class="md-nav__title" for="__nav_6_2">
1407           <span class="md-nav__icon md-icon"></span>
1408           Migrating from WSC 5.2
1409         </label>
1410         <ul class="md-nav__list" data-md-scrollfix>
1411
1412
1413
1414
1415
1416     <li class="md-nav__item">
1417       <a href="../../../migration/wsc52/php/" class="md-nav__link">
1418         PHP API
1419       </a>
1420     </li>
1421
1422
1423
1424
1425
1426
1427
1428     <li class="md-nav__item">
1429       <a href="../../../migration/wsc52/templates/" class="md-nav__link">
1430         Templates and Languages
1431       </a>
1432     </li>
1433
1434
1435
1436
1437
1438
1439
1440     <li class="md-nav__item">
1441       <a href="../../../migration/wsc52/libraries/" class="md-nav__link">
1442         Third Party Libraries
1443       </a>
1444     </li>
1445
1446
1447
1448         </ul>
1449       </nav>
1450     </li>
1451
1452
1453
1454
1455
1456
1457
1458
1459     <li class="md-nav__item md-nav__item--nested">
1460
1461
1462         <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6_3" type="checkbox" id="__nav_6_3" >
1463
1464       <label class="md-nav__link" for="__nav_6_3">
1465         Migrating from WSC 3.1
1466         <span class="md-nav__icon md-icon"></span>
1467       </label>
1468       <nav class="md-nav" aria-label="Migrating from WSC 3.1" data-md-level="2">
1469         <label class="md-nav__title" for="__nav_6_3">
1470           <span class="md-nav__icon md-icon"></span>
1471           Migrating from WSC 3.1
1472         </label>
1473         <ul class="md-nav__list" data-md-scrollfix>
1474
1475
1476
1477
1478
1479     <li class="md-nav__item">
1480       <a href="../../../migration/wsc31/php/" class="md-nav__link">
1481         PHP API
1482       </a>
1483     </li>
1484
1485
1486
1487         </ul>
1488       </nav>
1489     </li>
1490
1491
1492
1493
1494
1495
1496
1497
1498     <li class="md-nav__item md-nav__item--nested">
1499
1500
1501         <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6_4" type="checkbox" id="__nav_6_4" >
1502
1503       <label class="md-nav__link" for="__nav_6_4">
1504         Migrating from WSC 3.0
1505         <span class="md-nav__icon md-icon"></span>
1506       </label>
1507       <nav class="md-nav" aria-label="Migrating from WSC 3.0" data-md-level="2">
1508         <label class="md-nav__title" for="__nav_6_4">
1509           <span class="md-nav__icon md-icon"></span>
1510           Migrating from WSC 3.0
1511         </label>
1512         <ul class="md-nav__list" data-md-scrollfix>
1513
1514
1515
1516
1517
1518     <li class="md-nav__item">
1519       <a href="../../../migration/wsc30/php/" class="md-nav__link">
1520         PHP API
1521       </a>
1522     </li>
1523
1524
1525
1526
1527
1528
1529
1530     <li class="md-nav__item">
1531       <a href="../../../migration/wsc30/javascript/" class="md-nav__link">
1532         JavaScript API
1533       </a>
1534     </li>
1535
1536
1537
1538
1539
1540
1541
1542     <li class="md-nav__item">
1543       <a href="../../../migration/wsc30/templates/" class="md-nav__link">
1544         Templates
1545       </a>
1546     </li>
1547
1548
1549
1550
1551
1552
1553
1554     <li class="md-nav__item">
1555       <a href="../../../migration/wsc30/css/" class="md-nav__link">
1556         CSS
1557       </a>
1558     </li>
1559
1560
1561
1562
1563
1564
1565
1566     <li class="md-nav__item">
1567       <a href="../../../migration/wsc30/package/" class="md-nav__link">
1568         Package Components
1569       </a>
1570     </li>
1571
1572
1573
1574         </ul>
1575       </nav>
1576     </li>
1577
1578
1579
1580
1581
1582
1583
1584
1585     <li class="md-nav__item md-nav__item--nested">
1586
1587
1588         <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6_5" type="checkbox" id="__nav_6_5" >
1589
1590       <label class="md-nav__link" for="__nav_6_5">
1591         Migrating from WCF 2.1
1592         <span class="md-nav__icon md-icon"></span>
1593       </label>
1594       <nav class="md-nav" aria-label="Migrating from WCF 2.1" data-md-level="2">
1595         <label class="md-nav__title" for="__nav_6_5">
1596           <span class="md-nav__icon md-icon"></span>
1597           Migrating from WCF 2.1
1598         </label>
1599         <ul class="md-nav__list" data-md-scrollfix>
1600
1601
1602
1603
1604
1605     <li class="md-nav__item">
1606       <a href="../../../migration/wcf21/php/" class="md-nav__link">
1607         PHP API
1608       </a>
1609     </li>
1610
1611
1612
1613
1614
1615
1616
1617     <li class="md-nav__item">
1618       <a href="../../../migration/wcf21/templates/" class="md-nav__link">
1619         Templates
1620       </a>
1621     </li>
1622
1623
1624
1625
1626
1627
1628
1629     <li class="md-nav__item">
1630       <a href="../../../migration/wcf21/css/" class="md-nav__link">
1631         CSS
1632       </a>
1633     </li>
1634
1635
1636
1637
1638
1639
1640
1641     <li class="md-nav__item">
1642       <a href="../../../migration/wcf21/package/" class="md-nav__link">
1643         Package Components
1644       </a>
1645     </li>
1646
1647
1648
1649         </ul>
1650       </nav>
1651     </li>
1652
1653
1654
1655         </ul>
1656       </nav>
1657     </li>
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671     <li class="md-nav__item md-nav__item--active md-nav__item--nested">
1672
1673
1674         <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_7" type="checkbox" id="__nav_7" checked>
1675
1676       <label class="md-nav__link" for="__nav_7">
1677         Tutorials
1678         <span class="md-nav__icon md-icon"></span>
1679       </label>
1680       <nav class="md-nav" aria-label="Tutorials" data-md-level="1">
1681         <label class="md-nav__title" for="__nav_7">
1682           <span class="md-nav__icon md-icon"></span>
1683           Tutorials
1684         </label>
1685         <ul class="md-nav__list" data-md-scrollfix>
1686
1687
1688
1689
1690
1691
1692
1693
1694     <li class="md-nav__item md-nav__item--active md-nav__item--nested">
1695
1696
1697         <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_7_1" type="checkbox" id="__nav_7_1" checked>
1698
1699       <label class="md-nav__link" for="__nav_7_1">
1700         Tutorial Series
1701         <span class="md-nav__icon md-icon"></span>
1702       </label>
1703       <nav class="md-nav" aria-label="Tutorial Series" data-md-level="2">
1704         <label class="md-nav__title" for="__nav_7_1">
1705           <span class="md-nav__icon md-icon"></span>
1706           Tutorial Series
1707         </label>
1708         <ul class="md-nav__list" data-md-scrollfix>
1709
1710
1711
1712
1713
1714     <li class="md-nav__item">
1715       <a href="../overview/" class="md-nav__link">
1716         Overview
1717       </a>
1718     </li>
1719
1720
1721
1722
1723
1724
1725
1726     <li class="md-nav__item">
1727       <a href="../part_1/" class="md-nav__link">
1728         Part 1
1729       </a>
1730     </li>
1731
1732
1733
1734
1735
1736
1737
1738     <li class="md-nav__item">
1739       <a href="../part_2/" class="md-nav__link">
1740         Part 2
1741       </a>
1742     </li>
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752     <li class="md-nav__item md-nav__item--active">
1753
1754       <input class="md-nav__toggle md-toggle" data-md-toggle="toc" type="checkbox" id="__toc">
1755
1756
1757
1758
1759         <label class="md-nav__link md-nav__link--active" for="__toc">
1760           Part 3
1761           <span class="md-nav__icon md-icon"></span>
1762         </label>
1763
1764       <a href="./" class="md-nav__link md-nav__link--active">
1765         Part 3
1766       </a>
1767
1768
1769 <nav class="md-nav md-nav--secondary" aria-label="Table of contents">
1770
1771
1772
1773
1774
1775     <label class="md-nav__title" for="__toc">
1776       <span class="md-nav__icon md-icon"></span>
1777       Table of contents
1778     </label>
1779     <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
1780
1781         <li class="md-nav__item">
1782   <a href="#package-functionality" class="md-nav__link">
1783     Package Functionality
1784   </a>
1785
1786 </li>
1787
1788         <li class="md-nav__item">
1789   <a href="#used-components" class="md-nav__link">
1790     Used Components
1791   </a>
1792
1793 </li>
1794
1795         <li class="md-nav__item">
1796   <a href="#package-structure" class="md-nav__link">
1797     Package Structure
1798   </a>
1799
1800 </li>
1801
1802         <li class="md-nav__item">
1803   <a href="#runtime-cache" class="md-nav__link">
1804     Runtime Cache
1805   </a>
1806
1807 </li>
1808
1809         <li class="md-nav__item">
1810   <a href="#comments" class="md-nav__link">
1811     Comments
1812   </a>
1813
1814 </li>
1815
1816         <li class="md-nav__item">
1817   <a href="#person-page" class="md-nav__link">
1818     Person Page
1819   </a>
1820
1821     <nav class="md-nav" aria-label="Person Page">
1822       <ul class="md-nav__list">
1823
1824           <li class="md-nav__item">
1825   <a href="#personpage" class="md-nav__link">
1826     PersonPage
1827   </a>
1828
1829 </li>
1830
1831           <li class="md-nav__item">
1832   <a href="#persontpl" class="md-nav__link">
1833     person.tpl
1834   </a>
1835
1836 </li>
1837
1838           <li class="md-nav__item">
1839   <a href="#pagexml" class="md-nav__link">
1840     page.xml
1841   </a>
1842
1843 </li>
1844
1845           <li class="md-nav__item">
1846   <a href="#personpagehandler" class="md-nav__link">
1847     PersonPageHandler
1848   </a>
1849
1850 </li>
1851
1852       </ul>
1853     </nav>
1854
1855 </li>
1856
1857     </ul>
1858
1859 </nav>
1860
1861     </li>
1862
1863
1864
1865         </ul>
1866       </nav>
1867     </li>
1868
1869
1870
1871         </ul>
1872       </nav>
1873     </li>
1874
1875
1876
1877   </ul>
1878 </nav>
1879                   </div>
1880                 </div>
1881               </div>
1882
1883
1884
1885               <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
1886                 <div class="md-sidebar__scrollwrap">
1887                   <div class="md-sidebar__inner">
1888
1889 <nav class="md-nav md-nav--secondary" aria-label="Table of contents">
1890
1891
1892
1893
1894
1895     <label class="md-nav__title" for="__toc">
1896       <span class="md-nav__icon md-icon"></span>
1897       Table of contents
1898     </label>
1899     <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
1900
1901         <li class="md-nav__item">
1902   <a href="#package-functionality" class="md-nav__link">
1903     Package Functionality
1904   </a>
1905
1906 </li>
1907
1908         <li class="md-nav__item">
1909   <a href="#used-components" class="md-nav__link">
1910     Used Components
1911   </a>
1912
1913 </li>
1914
1915         <li class="md-nav__item">
1916   <a href="#package-structure" class="md-nav__link">
1917     Package Structure
1918   </a>
1919
1920 </li>
1921
1922         <li class="md-nav__item">
1923   <a href="#runtime-cache" class="md-nav__link">
1924     Runtime Cache
1925   </a>
1926
1927 </li>
1928
1929         <li class="md-nav__item">
1930   <a href="#comments" class="md-nav__link">
1931     Comments
1932   </a>
1933
1934 </li>
1935
1936         <li class="md-nav__item">
1937   <a href="#person-page" class="md-nav__link">
1938     Person Page
1939   </a>
1940
1941     <nav class="md-nav" aria-label="Person Page">
1942       <ul class="md-nav__list">
1943
1944           <li class="md-nav__item">
1945   <a href="#personpage" class="md-nav__link">
1946     PersonPage
1947   </a>
1948
1949 </li>
1950
1951           <li class="md-nav__item">
1952   <a href="#persontpl" class="md-nav__link">
1953     person.tpl
1954   </a>
1955
1956 </li>
1957
1958           <li class="md-nav__item">
1959   <a href="#pagexml" class="md-nav__link">
1960     page.xml
1961   </a>
1962
1963 </li>
1964
1965           <li class="md-nav__item">
1966   <a href="#personpagehandler" class="md-nav__link">
1967     PersonPageHandler
1968   </a>
1969
1970 </li>
1971
1972       </ul>
1973     </nav>
1974
1975 </li>
1976
1977     </ul>
1978
1979 </nav>
1980                   </div>
1981                 </div>
1982               </div>
1983
1984
1985           <div class="md-content" data-md-component="content">
1986             <article class="md-content__inner md-typeset">
1987
1988
1989                   <a href="https://github.com/WoltLab/docs.woltlab.com/edit/5.4/docs/tutorial/series/part_3.md" title="Edit this page" class="md-content__button md-icon">
1990                     <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20.71 7.04c.39-.39.39-1.04 0-1.41l-2.34-2.34c-.37-.39-1.02-.39-1.41 0l-1.84 1.83 3.75 3.75M3 17.25V21h3.75L17.81 9.93l-3.75-3.75L3 17.25z"/></svg>
1991                   </a>
1992
1993
1994                 <h1 id="tutorial-series-part-3-person-page-and-comments">Tutorial Series Part 3: Person Page and Comments<a class="headerlink" href="#tutorial-series-part-3-person-page-and-comments" title="Permanent link">#</a></h1>
1995 <p>In this part of our tutorial series, we will add a new front end page to our package that is dedicated to each person and shows their personal details.
1996 To make good use of this new page and introduce a new API of WoltLab Suite, we will add the opportunity for users to comment on the person using WoltLab Suite’s reusable comment functionality.</p>
1997 <h2 id="package-functionality">Package Functionality<a class="headerlink" href="#package-functionality" title="Permanent link">#</a></h2>
1998 <p>In addition to the existing functions from <a href="../part_1/">part 1</a>, the package will provide the following possibilities/functions after this part of the tutorial:</p>
1999 <ul>
2000 <li>Details page for each person linked in the front end person list</li>
2001 <li>Comment on people on their respective page (can be disabled per person)</li>
2002 <li>User online location for person details page with name and link to person details page</li>
2003 <li>Create menu items linking to specific person details pages</li>
2004 </ul>
2005 <h2 id="used-components">Used Components<a class="headerlink" href="#used-components" title="Permanent link">#</a></h2>
2006 <p>In addition to the components used in <a href="../part_1/">part 1</a>, we will use the <a href="../../../package/pip/object-type/">objectType package installation plugin</a>, use the <a href="../../../php/api/comments/">comment API</a>, create a <a href="../../../php/api/caches_runtime-caches/">runtime cache</a>, and create a page handler.</p>
2007 <h2 id="package-structure">Package Structure<a class="headerlink" href="#package-structure" title="Permanent link">#</a></h2>
2008 <p>The complete package will have the following file structure (including the files from <a href="../part_1/">part 1</a>):</p>
2009 <div class="highlight"><pre><span></span><code>├── acpMenu.xml
2010 ├── acptemplates
2011 │   ├── personAdd.tpl
2012 │   └── personList.tpl
2013 ├── files
2014 │   └── lib
2015 │       ├── acp
2016 │       │   ├── form
2017 │       │   │   ├── PersonAddForm.class.php
2018 │       │   │   └── PersonEditForm.class.php
2019 │       │   └── page
2020 │       │       └── PersonListPage.class.php
2021 │       ├── data
2022 │       │   └── person
2023 │       │       ├── Person.class.php
2024 │       │       ├── PersonAction.class.php
2025 │       │       ├── PersonEditor.class.php
2026 │       │       └── PersonList.class.php
2027 │       ├── page
2028 │       │   ├── PersonListPage.class.php
2029 │       │   └── PersonPage.class.php
2030 │       └── system
2031 │           ├── cache
2032 │           │   └── runtime
2033 │           │       └── PersonRuntimeCache.class.php
2034 │           ├── comment
2035 │           │   └── manager
2036 │           │       └── PersonCommentManager.class.php
2037 │           └── page
2038 │               └── handler
2039 │                   └── PersonPageHandler.class.php
2040 ├── install.sql
2041 ├── language
2042 │   ├── de.xml
2043 │   └── en.xml
2044 ├── menuItem.xml
2045 ├── objectType.xml
2046 ├── package.xml
2047 ├── page.xml
2048 ├── templates
2049 │   ├── person.tpl
2050 │   └── personList.tpl
2051 └── userGroupOption.xml
2052 </code></pre></div>
2053 <div class="admonition warning">
2054 <p class="admonition-title">We will not mention every code change between the first part and this part, as we only want to focus on the important, new parts of the code. For example, there is a new <code>Person::getLink()</code> method and new language items have been added. For all changes, please refer to the <a href="https://github.com/WoltLab/woltlab.github.io/tree/master/_includes/tutorial/tutorial-series/part-3">source code on GitHub</a>.</p>
2055 </div>
2056 <h2 id="runtime-cache">Runtime Cache<a class="headerlink" href="#runtime-cache" title="Permanent link">#</a></h2>
2057 <p>To reduce the number of database queries when different APIs require person objects, we implement a <a href="../../../php/api/caches_runtime-caches/">runtime cache</a> for people:</p>
2058 <div class="highlight"><pre><span></span><code><span class="o">&lt;?</span><span class="nx">php</span>
2059 <span class="k">namespace</span> <span class="nx">wcf\system\cache\runtime</span><span class="p">;</span>
2060 <span class="k">use</span> <span class="nx">wcf\data\person\Person</span><span class="p">;</span>
2061 <span class="k">use</span> <span class="nx">wcf\data\person\PersonList</span><span class="p">;</span>
2062
2063 <span class="sd">/**</span>
2064 <span class="sd"> * Runtime cache implementation for people.</span>
2065 <span class="sd"> *</span>
2066 <span class="sd"> * @author  Matthias Schmidt</span>
2067 <span class="sd"> * @copyright   2001-2019 WoltLab GmbH</span>
2068 <span class="sd"> * @license GNU Lesser General Public License &lt;http://opensource.org/licenses/lgpl-license.php&gt;</span>
2069 <span class="sd"> * @package WoltLabSuite\Core\System\Cache\Runtime</span>
2070 <span class="sd"> * @since   3.0</span>
2071 <span class="sd"> *</span>
2072 <span class="sd"> * @method  Person[]    getCachedObjects()</span>
2073 <span class="sd"> * @method  Person      getObject($objectID)</span>
2074 <span class="sd"> * @method  Person[]    getObjects(array $objectIDs)</span>
2075 <span class="sd"> */</span>
2076 <span class="k">class</span> <span class="nc">PersonRuntimeCache</span> <span class="k">extends</span> <span class="nx">AbstractRuntimeCache</span> <span class="p">{</span>
2077     <span class="sd">/**</span>
2078 <span class="sd">     * @inheritDoc</span>
2079 <span class="sd">     */</span>
2080     <span class="k">protected</span> <span class="nv">$listClassName</span> <span class="o">=</span> <span class="nx">PersonList</span><span class="o">::</span><span class="na">class</span><span class="p">;</span>
2081 <span class="p">}</span>
2082 </code></pre></div>
2083 <h2 id="comments">Comments<a class="headerlink" href="#comments" title="Permanent link">#</a></h2>
2084 <p>To allow users to comment on people, we need to tell the system that people support comments.
2085 This is done by registering a <code>com.woltlab.wcf.comment.commentableContent</code> object type whose processor implements <a href="https://github.com/WoltLab/WCF/blob/master/wcfsetup/install/files/lib/system/comment/manager/ICommentManager.class.php">ICommentManager</a>:</p>
2086 <div class="highlight"><pre><span></span><code><span class="cp">&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;</span>
2087 <span class="nt">&lt;data</span> <span class="na">xmlns=</span><span class="s">&quot;http://www.woltlab.com&quot;</span> <span class="na">xmlns:xsi=</span><span class="s">&quot;http://www.w3.org/2001/XMLSchema-instance&quot;</span> <span class="na">xsi:schemaLocation=</span><span class="s">&quot;http://www.woltlab.com http://www.woltlab.com/XSD/tornado/objectType.xsd&quot;</span><span class="nt">&gt;</span>
2088     <span class="nt">&lt;import&gt;</span>
2089         <span class="nt">&lt;type&gt;</span>
2090             <span class="nt">&lt;name&gt;</span>com.woltlab.wcf.person.personComment<span class="nt">&lt;/name&gt;</span>
2091             <span class="nt">&lt;definitionname&gt;</span>com.woltlab.wcf.comment.commentableContent<span class="nt">&lt;/definitionname&gt;</span>
2092             <span class="nt">&lt;classname&gt;</span>wcf\system\comment\manager\PersonCommentManager<span class="nt">&lt;/classname&gt;</span>
2093         <span class="nt">&lt;/type&gt;</span>
2094     <span class="nt">&lt;/import&gt;</span>
2095 <span class="nt">&lt;/data&gt;</span>
2096 </code></pre></div>
2097 <p>The <code>PersonCommentManager</code> class extended <code>ICommentManager</code>’s default implementation <a href="https://github.com/WoltLab/WCF/blob/master/wcfsetup/install/files/lib/system/comment/manager/AbstractCommentManager.class.php">AbstractCommentManager</a>:</p>
2098 <div class="highlight"><pre><span></span><code><span class="o">&lt;?</span><span class="nx">php</span>
2099 <span class="k">namespace</span> <span class="nx">wcf\system\comment\manager</span><span class="p">;</span>
2100 <span class="k">use</span> <span class="nx">wcf\data\person\Person</span><span class="p">;</span>
2101 <span class="k">use</span> <span class="nx">wcf\data\person\PersonEditor</span><span class="p">;</span>
2102 <span class="k">use</span> <span class="nx">wcf\system\cache\runtime\PersonRuntimeCache</span><span class="p">;</span>
2103 <span class="k">use</span> <span class="nx">wcf\system\WCF</span><span class="p">;</span>
2104
2105 <span class="sd">/**</span>
2106 <span class="sd"> * Comment manager implementation for people.</span>
2107 <span class="sd"> *</span>
2108 <span class="sd"> * @author  Matthias Schmidt</span>
2109 <span class="sd"> * @copyright   2001-2019 WoltLab GmbH</span>
2110 <span class="sd"> * @license GNU Lesser General Public License &lt;http://opensource.org/licenses/lgpl-license.php&gt;</span>
2111 <span class="sd"> * @package WoltLabSuite\Core\System\Comment\Manager</span>
2112 <span class="sd"> */</span>
2113 <span class="k">class</span> <span class="nc">PersonCommentManager</span> <span class="k">extends</span> <span class="nx">AbstractCommentManager</span> <span class="p">{</span>
2114     <span class="sd">/**</span>
2115 <span class="sd">     * @inheritDoc</span>
2116 <span class="sd">     */</span>
2117     <span class="k">protected</span> <span class="nv">$permissionAdd</span> <span class="o">=</span> <span class="s1">&#39;user.person.canAddComment&#39;</span><span class="p">;</span>
2118
2119     <span class="sd">/**</span>
2120 <span class="sd">     * @inheritDoc</span>
2121 <span class="sd">     */</span>
2122     <span class="k">protected</span> <span class="nv">$permissionAddWithoutModeration</span> <span class="o">=</span> <span class="s1">&#39;user.person.canAddCommentWithoutModeration&#39;</span><span class="p">;</span>
2123
2124     <span class="sd">/**</span>
2125 <span class="sd">     * @inheritDoc</span>
2126 <span class="sd">     */</span>
2127     <span class="k">protected</span> <span class="nv">$permissionCanModerate</span> <span class="o">=</span> <span class="s1">&#39;mod.person.canModerateComment&#39;</span><span class="p">;</span>
2128
2129     <span class="sd">/**</span>
2130 <span class="sd">     * @inheritDoc</span>
2131 <span class="sd">     */</span>
2132     <span class="k">protected</span> <span class="nv">$permissionDelete</span> <span class="o">=</span> <span class="s1">&#39;user.person.canDeleteComment&#39;</span><span class="p">;</span>
2133
2134     <span class="sd">/**</span>
2135 <span class="sd">     * @inheritDoc</span>
2136 <span class="sd">     */</span>
2137     <span class="k">protected</span> <span class="nv">$permissionEdit</span> <span class="o">=</span> <span class="s1">&#39;user.person.canEditComment&#39;</span><span class="p">;</span>
2138
2139     <span class="sd">/**</span>
2140 <span class="sd">     * @inheritDoc</span>
2141 <span class="sd">     */</span>
2142     <span class="k">protected</span> <span class="nv">$permissionModDelete</span> <span class="o">=</span> <span class="s1">&#39;mod.person.canDeleteComment&#39;</span><span class="p">;</span>
2143
2144     <span class="sd">/**</span>
2145 <span class="sd">     * @inheritDoc</span>
2146 <span class="sd">     */</span>
2147     <span class="k">protected</span> <span class="nv">$permissionModEdit</span> <span class="o">=</span> <span class="s1">&#39;mod.person.canEditComment&#39;</span><span class="p">;</span>
2148
2149     <span class="sd">/**</span>
2150 <span class="sd">     * @inheritDoc</span>
2151 <span class="sd">     */</span>
2152     <span class="k">public</span> <span class="k">function</span> <span class="nf">getLink</span><span class="p">(</span><span class="nv">$objectTypeID</span><span class="p">,</span> <span class="nv">$objectID</span><span class="p">)</span> <span class="p">{</span>
2153         <span class="k">return</span> <span class="nx">PersonRuntimeCache</span><span class="o">::</span><span class="na">getInstance</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">getObject</span><span class="p">(</span><span class="nv">$objectID</span><span class="p">)</span><span class="o">-&gt;</span><span class="na">getLink</span><span class="p">();</span>
2154     <span class="p">}</span>
2155
2156     <span class="sd">/**</span>
2157 <span class="sd">     * @inheritDoc</span>
2158 <span class="sd">     */</span>
2159     <span class="k">public</span> <span class="k">function</span> <span class="nf">isAccessible</span><span class="p">(</span><span class="nv">$objectID</span><span class="p">,</span> <span class="nv">$validateWritePermission</span> <span class="o">=</span> <span class="k">false</span><span class="p">)</span> <span class="p">{</span>
2160         <span class="k">return</span> <span class="nx">PersonRuntimeCache</span><span class="o">::</span><span class="na">getInstance</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">getObject</span><span class="p">(</span><span class="nv">$objectID</span><span class="p">)</span> <span class="o">!==</span> <span class="k">null</span><span class="p">;</span>
2161     <span class="p">}</span>
2162
2163     <span class="sd">/**</span>
2164 <span class="sd">     * @inheritDoc</span>
2165 <span class="sd">     */</span>
2166     <span class="k">public</span> <span class="k">function</span> <span class="nf">getTitle</span><span class="p">(</span><span class="nv">$objectTypeID</span><span class="p">,</span> <span class="nv">$objectID</span><span class="p">,</span> <span class="nv">$isResponse</span> <span class="o">=</span> <span class="k">false</span><span class="p">)</span> <span class="p">{</span>
2167         <span class="k">if</span> <span class="p">(</span><span class="nv">$isResponse</span><span class="p">)</span> <span class="p">{</span>
2168             <span class="k">return</span> <span class="nx">WCF</span><span class="o">::</span><span class="na">getLanguage</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">get</span><span class="p">(</span><span class="s1">&#39;wcf.person.commentResponse&#39;</span><span class="p">);</span>
2169         <span class="p">}</span>
2170
2171         <span class="k">return</span> <span class="nx">WCF</span><span class="o">::</span><span class="na">getLanguage</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">getDynamicVariable</span><span class="p">(</span><span class="s1">&#39;wcf.person.comment&#39;</span><span class="p">);</span>
2172     <span class="p">}</span>
2173
2174     <span class="sd">/**</span>
2175 <span class="sd">     * @inheritDoc</span>
2176 <span class="sd">     */</span>
2177     <span class="k">public</span> <span class="k">function</span> <span class="nf">updateCounter</span><span class="p">(</span><span class="nv">$objectID</span><span class="p">,</span> <span class="nv">$value</span><span class="p">)</span> <span class="p">{</span>
2178         <span class="p">(</span><span class="k">new</span> <span class="nx">PersonEditor</span><span class="p">(</span><span class="k">new</span> <span class="nx">Person</span><span class="p">(</span><span class="nv">$objectID</span><span class="p">)))</span><span class="o">-&gt;</span><span class="na">updateCounters</span><span class="p">([</span><span class="s1">&#39;comments&#39;</span> <span class="o">=&gt;</span> <span class="nv">$value</span><span class="p">]);</span>
2179     <span class="p">}</span>
2180 <span class="p">}</span>
2181 </code></pre></div>
2182 <ul>
2183 <li>First, the system is told the names of the permissions via the <code>$permission*</code> properties.
2184   More information about comment permissions can be found <a href="../../../php/api/comments/#user-group-options">here</a>.</li>
2185 <li>The <code>getLink()</code> method returns the link to the person with the passed comment id.
2186   As in <code>isAccessible()</code>, <code>PersonRuntimeCache</code> is used to potentially save database queries.</li>
2187 <li>The <code>isAccessible()</code> method checks if the active user can access the relevant person.
2188   As we do not have any special restrictions for accessing people, we only need to check if the person exists.</li>
2189 <li>The <code>getTitle()</code> method returns the title used for comments and responses, which is just a generic language item in this case.</li>
2190 <li>The <code>updateCounter()</code> updates the comments’ counter of the person.
2191   We have added a new <code>comments</code> database table column to the <code>wcf1_person</code> database table in order to keep track on the number of comments.</li>
2192 </ul>
2193 <p>Additionally, we have added a new <code>enableComments</code> database table column to the <code>wcf1_person</code> database table whose value can be set when creating or editing a person in the ACP.
2194 With this option, comments on individual people can be disabled.</p>
2195 <div class="admonition info">
2196 <p class="admonition-title">Liking comments is already built-in and only requires some extra code in the <code>PersonPage</code> class for showing the likes of pre-loaded comments.</p>
2197 </div>
2198 <h2 id="person-page">Person Page<a class="headerlink" href="#person-page" title="Permanent link">#</a></h2>
2199 <h3 id="personpage"><code>PersonPage</code><a class="headerlink" href="#personpage" title="Permanent link">#</a></h3>
2200 <div class="highlight"><pre><span></span><code><span class="o">&lt;?</span><span class="nx">php</span>
2201 <span class="k">namespace</span> <span class="nx">wcf\page</span><span class="p">;</span>
2202 <span class="k">use</span> <span class="nx">wcf\data\person\Person</span><span class="p">;</span>
2203 <span class="k">use</span> <span class="nx">wcf\system\comment\CommentHandler</span><span class="p">;</span>
2204 <span class="k">use</span> <span class="nx">wcf\system\comment\manager\PersonCommentManager</span><span class="p">;</span>
2205 <span class="k">use</span> <span class="nx">wcf\system\exception\IllegalLinkException</span><span class="p">;</span>
2206 <span class="k">use</span> <span class="nx">wcf\system\WCF</span><span class="p">;</span>
2207
2208 <span class="sd">/**</span>
2209 <span class="sd"> * Shows the details of a certain person.</span>
2210 <span class="sd"> * </span>
2211 <span class="sd"> * @author  Matthias Schmidt</span>
2212 <span class="sd"> * @copyright   2001-2019 WoltLab GmbH</span>
2213 <span class="sd"> * @license GNU Lesser General Public License &lt;http://opensource.org/licenses/lgpl-license.php&gt;</span>
2214 <span class="sd"> * @package WoltLabSuite\Core\Page</span>
2215 <span class="sd"> */</span>
2216 <span class="k">class</span> <span class="nc">PersonPage</span> <span class="k">extends</span> <span class="nx">AbstractPage</span> <span class="p">{</span>
2217     <span class="sd">/**</span>
2218 <span class="sd">     * list of comments</span>
2219 <span class="sd">     * @var StructuredCommentList</span>
2220 <span class="sd">     */</span>
2221     <span class="k">public</span> <span class="nv">$commentList</span><span class="p">;</span>
2222
2223     <span class="sd">/**</span>
2224 <span class="sd">     * person comment manager object</span>
2225 <span class="sd">     * @var PersonCommentManager</span>
2226 <span class="sd">     */</span>
2227     <span class="k">public</span> <span class="nv">$commentManager</span><span class="p">;</span>
2228
2229     <span class="sd">/**</span>
2230 <span class="sd">     * id of the person comment object type</span>
2231 <span class="sd">     * @var integer</span>
2232 <span class="sd">     */</span>
2233     <span class="k">public</span> <span class="nv">$commentObjectTypeID</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
2234
2235     <span class="sd">/**</span>
2236 <span class="sd">     * shown person</span>
2237 <span class="sd">     * @var Person</span>
2238 <span class="sd">     */</span>
2239     <span class="k">public</span> <span class="nv">$person</span><span class="p">;</span>
2240
2241     <span class="sd">/**</span>
2242 <span class="sd">     * id of the shown person</span>
2243 <span class="sd">     * @var integer</span>
2244 <span class="sd">     */</span>
2245     <span class="k">public</span> <span class="nv">$personID</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
2246
2247     <span class="sd">/**</span>
2248 <span class="sd">     * @inheritDoc</span>
2249 <span class="sd">     */</span>
2250     <span class="k">public</span> <span class="k">function</span> <span class="nf">assignVariables</span><span class="p">()</span> <span class="p">{</span>
2251         <span class="k">parent</span><span class="o">::</span><span class="na">assignVariables</span><span class="p">();</span>
2252
2253         <span class="nx">WCF</span><span class="o">::</span><span class="na">getTPL</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">assign</span><span class="p">([</span>
2254             <span class="s1">&#39;commentCanAdd&#39;</span> <span class="o">=&gt;</span> <span class="nx">WCF</span><span class="o">::</span><span class="na">getSession</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">getPermission</span><span class="p">(</span><span class="s1">&#39;user.person.canAddComment&#39;</span><span class="p">),</span>
2255             <span class="s1">&#39;commentList&#39;</span> <span class="o">=&gt;</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">commentList</span><span class="p">,</span>
2256             <span class="s1">&#39;commentObjectTypeID&#39;</span> <span class="o">=&gt;</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">commentObjectTypeID</span><span class="p">,</span>
2257             <span class="s1">&#39;lastCommentTime&#39;</span> <span class="o">=&gt;</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">commentList</span> <span class="o">?</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">commentList</span><span class="o">-&gt;</span><span class="na">getMinCommentTime</span><span class="p">()</span> <span class="o">:</span> <span class="mi">0</span><span class="p">,</span>
2258             <span class="s1">&#39;likeData&#39;</span> <span class="o">=&gt;</span> <span class="p">(</span><span class="nx">MODULE_LIKE</span> <span class="o">&amp;&amp;</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">commentList</span><span class="p">)</span> <span class="o">?</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">commentList</span><span class="o">-&gt;</span><span class="na">getLikeData</span><span class="p">()</span> <span class="o">:</span> <span class="p">[],</span>
2259             <span class="s1">&#39;person&#39;</span> <span class="o">=&gt;</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">person</span>
2260         <span class="p">]);</span>
2261     <span class="p">}</span>
2262
2263     <span class="sd">/**</span>
2264 <span class="sd">     * @inheritDoc</span>
2265 <span class="sd">     */</span>
2266     <span class="k">public</span> <span class="k">function</span> <span class="nf">readData</span><span class="p">()</span> <span class="p">{</span>
2267         <span class="k">parent</span><span class="o">::</span><span class="na">readData</span><span class="p">();</span>
2268
2269         <span class="k">if</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">person</span><span class="o">-&gt;</span><span class="na">enableComments</span><span class="p">)</span> <span class="p">{</span>
2270             <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">commentObjectTypeID</span> <span class="o">=</span> <span class="nx">CommentHandler</span><span class="o">::</span><span class="na">getInstance</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">getObjectTypeID</span><span class="p">(</span><span class="s1">&#39;com.woltlab.wcf.person.personComment&#39;</span><span class="p">);</span>
2271             <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">commentManager</span> <span class="o">=</span> <span class="nx">CommentHandler</span><span class="o">::</span><span class="na">getInstance</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">getObjectType</span><span class="p">(</span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">commentObjectTypeID</span><span class="p">)</span><span class="o">-&gt;</span><span class="na">getProcessor</span><span class="p">();</span>
2272             <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">commentList</span> <span class="o">=</span> <span class="nx">CommentHandler</span><span class="o">::</span><span class="na">getInstance</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">getCommentList</span><span class="p">(</span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">commentManager</span><span class="p">,</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">commentObjectTypeID</span><span class="p">,</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">person</span><span class="o">-&gt;</span><span class="na">personID</span><span class="p">);</span>
2273         <span class="p">}</span>
2274     <span class="p">}</span>
2275
2276     <span class="sd">/**</span>
2277 <span class="sd">     * @inheritDoc</span>
2278 <span class="sd">     */</span>
2279     <span class="k">public</span> <span class="k">function</span> <span class="nf">readParameters</span><span class="p">()</span> <span class="p">{</span>
2280         <span class="k">parent</span><span class="o">::</span><span class="na">readParameters</span><span class="p">();</span>
2281
2282         <span class="k">if</span> <span class="p">(</span><span class="nb">isset</span><span class="p">(</span><span class="nv">$_REQUEST</span><span class="p">[</span><span class="s1">&#39;id&#39;</span><span class="p">]))</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">personID</span> <span class="o">=</span> <span class="nb">intval</span><span class="p">(</span><span class="nv">$_REQUEST</span><span class="p">[</span><span class="s1">&#39;id&#39;</span><span class="p">]);</span>
2283         <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">person</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">Person</span><span class="p">(</span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">personID</span><span class="p">);</span>
2284         <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">person</span><span class="o">-&gt;</span><span class="na">personID</span><span class="p">)</span> <span class="p">{</span>
2285             <span class="k">throw</span> <span class="k">new</span> <span class="nx">IllegalLinkException</span><span class="p">();</span>
2286         <span class="p">}</span>
2287     <span class="p">}</span>
2288 <span class="p">}</span>
2289 </code></pre></div>
2290 <p>The <code>PersonPage</code> class is similar to the <code>PersonEditForm</code> in the ACP in that it reads the id of the requested person from the request data and validates the id in <code>readParameters()</code>.
2291 The rest of the code only handles fetching the list of comments on the requested person.
2292 In <code>readData()</code>, this list is fetched using <code>CommentHandler::getCommentList()</code> if comments are enabled for the person.
2293 The <code>assignVariables()</code> method assigns some additional template variables like <code>$commentCanAdd</code>, which is <code>1</code> if the active person can add comments and is <code>0</code> otherwise, <code>$lastCommentTime</code>, which contains the UNIX timestamp of the last comment, and <code>$likeData</code>, which contains data related to the likes for the disabled comments.</p>
2294 <h3 id="persontpl"><code>person.tpl</code><a class="headerlink" href="#persontpl" title="Permanent link">#</a></h3>
2295 <div class="highlight"><pre><span></span><code>{capture assign=&#39;pageTitle&#39;}{$person} - {lang}wcf.person.list{/lang}{/capture}
2296
2297 {capture assign=&#39;contentTitle&#39;}{$person}{/capture}
2298
2299 {include file=&#39;header&#39;}
2300
2301 {if $person-&gt;enableComments}
2302     {if $commentList|count || $commentCanAdd}
2303         &lt;section id=&quot;comments&quot; class=&quot;section sectionContainerList&quot;&gt;
2304             &lt;header class=&quot;sectionHeader&quot;&gt;
2305                 &lt;h2 class=&quot;sectionTitle&quot;&gt;{lang}wcf.person.comments{/lang}{if $person-&gt;comments} &lt;span class=&quot;badge&quot;&gt;{#$person-&gt;comments}&lt;/span&gt;{/if}&lt;/h2&gt;
2306             &lt;/header&gt;
2307
2308             {include file=&#39;__commentJavaScript&#39; commentContainerID=&#39;personCommentList&#39;}
2309
2310             &lt;div class=&quot;personComments&quot;&gt;
2311                 &lt;ul id=&quot;personCommentList&quot; class=&quot;commentList containerList&quot;
2312                     data-can-add=&quot;{if $commentCanAdd}true{else}false{/if}&quot;
2313                     data-object-id=&quot;{@$person-&gt;personID}&quot;
2314                     data-object-type-id=&quot;{@$commentObjectTypeID}&quot;
2315                     data-comments=&quot;{if $person-&gt;comments}{@$commentList-&gt;countObjects()}{else}0{/if}&quot;
2316                     data-last-comment-time=&quot;{@$lastCommentTime}&quot;
2317                 &gt;
2318                     {include file=&#39;commentListAddComment&#39; wysiwygSelector=&#39;personCommentListAddComment&#39;}
2319                     {include file=&#39;commentList&#39;}
2320                 &lt;/ul&gt;
2321             &lt;/div&gt;
2322         &lt;/section&gt;
2323     {/if}
2324 {/if}
2325
2326 &lt;footer class=&quot;contentFooter&quot;&gt;
2327     {hascontent}
2328         &lt;nav class=&quot;contentFooterNavigation&quot;&gt;
2329             &lt;ul&gt;
2330                 {content}{event name=&#39;contentFooterNavigation&#39;}{/content}
2331             &lt;/ul&gt;
2332         &lt;/nav&gt;
2333     {/hascontent}
2334 &lt;/footer&gt;
2335
2336 {include file=&#39;footer&#39;}
2337 </code></pre></div>
2338 <p>For now, the <code>person</code> template is still very empty and only shows the comments in the content area.
2339 The template code shown for comments is very generic and used in this form in many locations as it only sets the header of the comment list and the container <code>ul#personCommentList</code> element for the comments shown by <code>commentList</code> template.
2340 The <code>ul#personCommentList</code> elements has five additional <code>data-</code> attributes required by the JavaScript API for comments for loading more comments or creating new ones.
2341 The <code>commentListAddComment</code> template adds the WYSIWYG support.
2342 The attribute <code>wysiwygSelector</code> should be the id of the comment list <code>personCommentList</code> with an additional <code>AddComment</code> suffix.</p>
2343 <h3 id="pagexml"><code>page.xml</code><a class="headerlink" href="#pagexml" title="Permanent link">#</a></h3>
2344 <div class="highlight"><pre><span></span><code><span class="cp">&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;</span>
2345 <span class="nt">&lt;data</span> <span class="na">xmlns=</span><span class="s">&quot;http://www.woltlab.com&quot;</span> <span class="na">xmlns:xsi=</span><span class="s">&quot;http://www.w3.org/2001/XMLSchema-instance&quot;</span> <span class="na">xsi:schemaLocation=</span><span class="s">&quot;http://www.woltlab.com http://www.woltlab.com/XSD/tornado/page.xsd&quot;</span><span class="nt">&gt;</span>
2346     <span class="nt">&lt;import&gt;</span>
2347         <span class="nt">&lt;page</span> <span class="na">identifier=</span><span class="s">&quot;com.woltlab.wcf.people.PersonList&quot;</span><span class="nt">&gt;</span>
2348             <span class="nt">&lt;pageType&gt;</span>system<span class="nt">&lt;/pageType&gt;</span>
2349             <span class="nt">&lt;controller&gt;</span>wcf\page\PersonListPage<span class="nt">&lt;/controller&gt;</span>
2350             <span class="nt">&lt;name</span> <span class="na">language=</span><span class="s">&quot;de&quot;</span><span class="nt">&gt;</span>Personen-Liste<span class="nt">&lt;/name&gt;</span>
2351             <span class="nt">&lt;name</span> <span class="na">language=</span><span class="s">&quot;en&quot;</span><span class="nt">&gt;</span>Person List<span class="nt">&lt;/name&gt;</span>
2352
2353             <span class="nt">&lt;content</span> <span class="na">language=</span><span class="s">&quot;de&quot;</span><span class="nt">&gt;</span>
2354                 <span class="nt">&lt;title&gt;</span>Personen<span class="nt">&lt;/title&gt;</span>
2355             <span class="nt">&lt;/content&gt;</span>
2356             <span class="nt">&lt;content</span> <span class="na">language=</span><span class="s">&quot;en&quot;</span><span class="nt">&gt;</span>
2357                 <span class="nt">&lt;title&gt;</span>People<span class="nt">&lt;/title&gt;</span>
2358             <span class="nt">&lt;/content&gt;</span>
2359         <span class="nt">&lt;/page&gt;</span>
2360         <span class="nt">&lt;page</span> <span class="na">identifier=</span><span class="s">&quot;com.woltlab.wcf.people.Person&quot;</span><span class="nt">&gt;</span>
2361             <span class="nt">&lt;pageType&gt;</span>system<span class="nt">&lt;/pageType&gt;</span>
2362             <span class="nt">&lt;controller&gt;</span>wcf\page\PersonPage<span class="nt">&lt;/controller&gt;</span>
2363             <span class="nt">&lt;handler&gt;</span>wcf\system\page\handler\PersonPageHandler<span class="nt">&lt;/handler&gt;</span>
2364             <span class="nt">&lt;name</span> <span class="na">language=</span><span class="s">&quot;de&quot;</span><span class="nt">&gt;</span>Person<span class="nt">&lt;/name&gt;</span>
2365             <span class="nt">&lt;name</span> <span class="na">language=</span><span class="s">&quot;en&quot;</span><span class="nt">&gt;</span>Person<span class="nt">&lt;/name&gt;</span>
2366             <span class="nt">&lt;requireObjectID&gt;</span>1<span class="nt">&lt;/requireObjectID&gt;</span>
2367             <span class="nt">&lt;parent&gt;</span>com.woltlab.wcf.people.PersonList<span class="nt">&lt;/parent&gt;</span>
2368         <span class="nt">&lt;/page&gt;</span>
2369     <span class="nt">&lt;/import&gt;</span>
2370 <span class="nt">&lt;/data&gt;</span>
2371 </code></pre></div>
2372 <p>The <code>page.xml</code> file has been extended for the new person page with identifier <code>com.woltlab.wcf.people.Person</code>.
2373 Compared to the pre-existing <code>com.woltlab.wcf.people.PersonList</code> page, there are four differences:</p>
2374 <ol>
2375 <li>It has a <code>&lt;handler&gt;</code> element with a class name as value.
2376    This aspect will be discussed in more detail in the next section.</li>
2377 <li>There are no <code>&lt;content&gt;</code> elements because, both, the title and the content of the page are dynamically generated in the template.</li>
2378 <li>The <code>&lt;requireObjectID&gt;</code> tells the system that this page requires an object id to properly work, in this case a valid person id.</li>
2379 <li>This page has a <code>&lt;parent&gt;</code> page, the person list page.
2380    In general, the details page for any type of object that is listed on a different page has the list page as its parent.</li>
2381 </ol>
2382 <h3 id="personpagehandler"><code>PersonPageHandler</code><a class="headerlink" href="#personpagehandler" title="Permanent link">#</a></h3>
2383 <div class="highlight"><pre><span></span><code><span class="o">&lt;?</span><span class="nx">php</span>
2384 <span class="k">namespace</span> <span class="nx">wcf\system\page\handler</span><span class="p">;</span>
2385 <span class="k">use</span> <span class="nx">wcf\data\page\Page</span><span class="p">;</span>
2386 <span class="k">use</span> <span class="nx">wcf\data\person\PersonList</span><span class="p">;</span>
2387 <span class="k">use</span> <span class="nx">wcf\data\user\online\UserOnline</span><span class="p">;</span>
2388 <span class="k">use</span> <span class="nx">wcf\system\cache\runtime\PersonRuntimeCache</span><span class="p">;</span>
2389 <span class="k">use</span> <span class="nx">wcf\system\database\util\PreparedStatementConditionBuilder</span><span class="p">;</span>
2390 <span class="k">use</span> <span class="nx">wcf\system\WCF</span><span class="p">;</span>
2391
2392 <span class="sd">/**</span>
2393 <span class="sd"> * Page handler implementation for person page.</span>
2394 <span class="sd"> * </span>
2395 <span class="sd"> * @author  Matthias Schmidt</span>
2396 <span class="sd"> * @copyright   2001-2019 WoltLab GmbH</span>
2397 <span class="sd"> * @license GNU Lesser General Public License &lt;http://opensource.org/licenses/lgpl-license.php&gt;</span>
2398 <span class="sd"> * @package WoltLabSuite\Core\System\Page\Handler</span>
2399 <span class="sd"> */</span>
2400 <span class="k">class</span> <span class="nc">PersonPageHandler</span> <span class="k">extends</span> <span class="nx">AbstractLookupPageHandler</span> <span class="k">implements</span> <span class="nx">IOnlineLocationPageHandler</span> <span class="p">{</span>
2401     <span class="k">use</span> <span class="nx">TOnlineLocationPageHandler</span><span class="p">;</span>
2402
2403     <span class="sd">/**</span>
2404 <span class="sd">     * @inheritDoc</span>
2405 <span class="sd">     */</span>
2406     <span class="k">public</span> <span class="k">function</span> <span class="nf">getLink</span><span class="p">(</span><span class="nv">$objectID</span><span class="p">)</span> <span class="p">{</span>
2407         <span class="k">return</span> <span class="nx">PersonRuntimeCache</span><span class="o">::</span><span class="na">getInstance</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">getObject</span><span class="p">(</span><span class="nv">$objectID</span><span class="p">)</span><span class="o">-&gt;</span><span class="na">getLink</span><span class="p">();</span>
2408     <span class="p">}</span>
2409
2410     <span class="sd">/**</span>
2411 <span class="sd">     * Returns the textual description if a user is currently online viewing this page.</span>
2412 <span class="sd">     *</span>
2413 <span class="sd">     * @see IOnlineLocationPageHandler::getOnlineLocation()</span>
2414 <span class="sd">     *</span>
2415 <span class="sd">     * @param   Page        $page       visited page</span>
2416 <span class="sd">     * @param   UserOnline  $user       user online object with request data</span>
2417 <span class="sd">     * @return  string</span>
2418 <span class="sd">     */</span>
2419     <span class="k">public</span> <span class="k">function</span> <span class="nf">getOnlineLocation</span><span class="p">(</span><span class="nx">Page</span> <span class="nv">$page</span><span class="p">,</span> <span class="nx">UserOnline</span> <span class="nv">$user</span><span class="p">)</span> <span class="p">{</span>
2420         <span class="k">if</span> <span class="p">(</span><span class="nv">$user</span><span class="o">-&gt;</span><span class="na">pageObjectID</span> <span class="o">===</span> <span class="k">null</span><span class="p">)</span> <span class="p">{</span>
2421             <span class="k">return</span> <span class="s1">&#39;&#39;</span><span class="p">;</span>
2422         <span class="p">}</span>
2423
2424         <span class="nv">$person</span> <span class="o">=</span> <span class="nx">PersonRuntimeCache</span><span class="o">::</span><span class="na">getInstance</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">getObject</span><span class="p">(</span><span class="nv">$user</span><span class="o">-&gt;</span><span class="na">pageObjectID</span><span class="p">);</span>
2425         <span class="k">if</span> <span class="p">(</span><span class="nv">$person</span> <span class="o">===</span> <span class="k">null</span><span class="p">)</span> <span class="p">{</span>
2426             <span class="k">return</span> <span class="s1">&#39;&#39;</span><span class="p">;</span>
2427         <span class="p">}</span>
2428
2429         <span class="k">return</span> <span class="nx">WCF</span><span class="o">::</span><span class="na">getLanguage</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">getDynamicVariable</span><span class="p">(</span><span class="s1">&#39;wcf.page.onlineLocation.&#39;</span><span class="o">.</span><span class="nv">$page</span><span class="o">-&gt;</span><span class="na">identifier</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;person&#39;</span> <span class="o">=&gt;</span> <span class="nv">$person</span><span class="p">]);</span>
2430     <span class="p">}</span>
2431
2432     <span class="sd">/**</span>
2433 <span class="sd">     * @inheritDoc</span>
2434 <span class="sd">     */</span>
2435     <span class="k">public</span> <span class="k">function</span> <span class="nf">isValid</span><span class="p">(</span><span class="nv">$objectID</span> <span class="o">=</span> <span class="k">null</span><span class="p">)</span> <span class="p">{</span>
2436         <span class="k">return</span> <span class="nx">PersonRuntimeCache</span><span class="o">::</span><span class="na">getInstance</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">getObject</span><span class="p">(</span><span class="nv">$objectID</span><span class="p">)</span> <span class="o">!==</span> <span class="k">null</span><span class="p">;</span>
2437     <span class="p">}</span>
2438
2439     <span class="sd">/**</span>
2440 <span class="sd">     * @inheritDoc</span>
2441 <span class="sd">     */</span>
2442     <span class="k">public</span> <span class="k">function</span> <span class="nf">lookup</span><span class="p">(</span><span class="nv">$searchString</span><span class="p">)</span> <span class="p">{</span>
2443         <span class="nv">$conditionBuilder</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">PreparedStatementConditionBuilder</span><span class="p">(</span><span class="k">false</span><span class="p">,</span> <span class="s1">&#39;OR&#39;</span><span class="p">);</span>
2444         <span class="nv">$conditionBuilder</span><span class="o">-&gt;</span><span class="na">add</span><span class="p">(</span><span class="s1">&#39;person.firstName LIKE ?&#39;</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;%&#39;</span> <span class="o">.</span> <span class="nv">$searchString</span> <span class="o">.</span> <span class="s1">&#39;%&#39;</span><span class="p">]);</span>
2445         <span class="nv">$conditionBuilder</span><span class="o">-&gt;</span><span class="na">add</span><span class="p">(</span><span class="s1">&#39;person.lastName LIKE ?&#39;</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;%&#39;</span> <span class="o">.</span> <span class="nv">$searchString</span> <span class="o">.</span> <span class="s1">&#39;%&#39;</span><span class="p">]);</span>
2446
2447         <span class="nv">$personList</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">PersonList</span><span class="p">();</span>
2448         <span class="nv">$personList</span><span class="o">-&gt;</span><span class="na">getConditionBuilder</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">add</span><span class="p">(</span><span class="nv">$conditionBuilder</span><span class="p">,</span> <span class="nv">$conditionBuilder</span><span class="o">-&gt;</span><span class="na">getParameters</span><span class="p">());</span>
2449         <span class="nv">$personList</span><span class="o">-&gt;</span><span class="na">readObjects</span><span class="p">();</span>
2450
2451         <span class="nv">$results</span> <span class="o">=</span> <span class="p">[];</span>
2452         <span class="k">foreach</span> <span class="p">(</span><span class="nv">$personList</span> <span class="k">as</span> <span class="nv">$person</span><span class="p">)</span> <span class="p">{</span>
2453             <span class="nv">$results</span><span class="p">[]</span> <span class="o">=</span> <span class="p">[</span>
2454                 <span class="s1">&#39;image&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;fa-user&#39;</span><span class="p">,</span>
2455                 <span class="s1">&#39;link&#39;</span> <span class="o">=&gt;</span> <span class="nv">$person</span><span class="o">-&gt;</span><span class="na">getLink</span><span class="p">(),</span>
2456                 <span class="s1">&#39;objectID&#39;</span> <span class="o">=&gt;</span> <span class="nv">$person</span><span class="o">-&gt;</span><span class="na">personID</span><span class="p">,</span>
2457                 <span class="s1">&#39;title&#39;</span> <span class="o">=&gt;</span> <span class="nv">$person</span><span class="o">-&gt;</span><span class="na">getTitle</span><span class="p">()</span>
2458             <span class="p">];</span>
2459         <span class="p">}</span>
2460
2461         <span class="k">return</span> <span class="nv">$results</span><span class="p">;</span>
2462     <span class="p">}</span>
2463
2464     <span class="sd">/**</span>
2465 <span class="sd">     * Prepares fetching all necessary data for the textual description if a user is currently online</span>
2466 <span class="sd">     * viewing this page.</span>
2467 <span class="sd">     * </span>
2468 <span class="sd">     * @see IOnlineLocationPageHandler::prepareOnlineLocation()</span>
2469 <span class="sd">     *</span>
2470 <span class="sd">     * @param   Page        $page       visited page</span>
2471 <span class="sd">     * @param   UserOnline  $user       user online object with request data</span>
2472 <span class="sd">     */</span>
2473     <span class="k">public</span> <span class="k">function</span> <span class="nf">prepareOnlineLocation</span><span class="p">(</span><span class="sd">/** @noinspection PhpUnusedParameterInspection */</span><span class="nx">Page</span> <span class="nv">$page</span><span class="p">,</span> <span class="nx">UserOnline</span> <span class="nv">$user</span><span class="p">)</span> <span class="p">{</span>
2474         <span class="k">if</span> <span class="p">(</span><span class="nv">$user</span><span class="o">-&gt;</span><span class="na">pageObjectID</span> <span class="o">!==</span> <span class="k">null</span><span class="p">)</span> <span class="p">{</span>
2475             <span class="nx">PersonRuntimeCache</span><span class="o">::</span><span class="na">getInstance</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">cacheObjectID</span><span class="p">(</span><span class="nv">$user</span><span class="o">-&gt;</span><span class="na">pageObjectID</span><span class="p">);</span>
2476         <span class="p">}</span>
2477     <span class="p">}</span>
2478 <span class="p">}</span>
2479 </code></pre></div>
2480 <p>Like any page handler, the <code>PersonPageHandler</code> class has to implement the <a href="https://github.com/WoltLab/WCF/blob/master/wcfsetup/install/files/lib/system/page/handler/IMenuPageHandler.class.php">IMenuPageHandler</a> interface, which should be done by extending the <a href="https://github.com/WoltLab/WCF/blob/master/wcfsetup/install/files/lib/system/page/handler/AbstractMenuPageHandler.class.php">AbstractMenuPageHandler</a> class.
2481 As we want  administrators to link to specific people in menus, for example, we have to also implement the <a href="https://github.com/WoltLab/WCF/blob/master/wcfsetup/install/files/lib/system/page/handler/ILookupPageHandler.class.php">ILookupPageHandler</a> interface by extending the <a href="https://github.com/WoltLab/WCF/blob/master/wcfsetup/install/files/lib/system/page/handler/AbstractLookupPageHandler.class.php">AbstractLookupPageHandler</a> class.</p>
2482 <p>For the <code>ILookupPageHandler</code> interface, we need to implement three methods:</p>
2483 <ol>
2484 <li><code>getLink($objectID)</code> returns the link to the person page with the given id.
2485    In this case, we simply delegate this method call to the <code>Person</code> object returned by <code>PersonRuntimeCache::getObject()</code>.</li>
2486 <li><code>isValid($objectID)</code> returns <code>true</code> if the person with the given id exists, otherwise <code>false</code>.
2487    Here, we use <code>PersonRuntimeCache::getObject()</code> again and check if the return value is <code>null</code>, which is the case for non-existing people.</li>
2488 <li><code>lookup($searchString)</code> is used when setting up an internal link and when searching for the linked person.
2489    This method simply searches the first and last name of the people and returns an array with the person data.
2490    While the <code>link</code>, the <code>objectID</code>, and the <code>title</code> element are self-explanatory, the <code>image</code> element can either contain an HTML <code>&lt;img&gt;</code> tag, which is displayed next to the search result (WoltLab Suite uses an image tag for users showing their avatar, for example), or a FontAwesome icon class (starting with <code>fa-</code>).</li>
2491 </ol>
2492 <p>Additionally, the class also implements <a href="https://github.com/WoltLab/WCF/blob/master/wcfsetup/install/files/lib/system/page/handler/IOnlineLocationPageHandler.class.php">IOnlineLocationPageHandler</a> which is used to determine the online location of users.
2493 To ensure upwards-compatibility if the <code>IOnlineLocationPageHandler</code> interface changes, the <a href="https://github.com/WoltLab/WCF/blob/master/wcfsetup/install/files/lib/system/page/handler/TOnlineLocationPageHandler.class.php">TOnlineLocationPageHandler</a> trait is used.
2494 The <code>IOnlineLocationPageHandler</code> interface requires two methods to be implemented:</p>
2495 <ol>
2496 <li><code>getOnlineLocation(Page $page, UserOnline $user)</code> returns the textual description of the online location.
2497    The language item for the user online locations should use the pattern <code>wcf.page.onlineLocation.{page identifier}</code>.</li>
2498 <li><code>prepareOnlineLocation(Page $page, UserOnline $user)</code> is called for each user online before the <code>getOnlineLocation()</code> calls.
2499    In this case, calling <code>prepareOnlineLocation()</code> first enables us to add all relevant person ids to the person runtime cache so that for all <code>getOnlineLocation()</code> calls combined, only one database query is necessary to fetch all person objects.</li>
2500 </ol>
2501 <hr />
2502 <p>This concludes the third part of our tutorial series after which each person has a dedicated page on which people can comment on the person.</p>
2503 <p>The complete source code of this part can be found on <a href="https://github.com/WoltLab/woltlab.github.io/tree/master/_includes/tutorial/tutorial-series/part-3">GitHub</a>.</p>
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