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이슈 트래커: #StructuredDiscussions
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미디어위키 확장 기능 설명서
StructuredDiscussions
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만든 이 Brandon Harris, Erik Bernhardson, Matthias Mullie, Andrew Garrett, Benny Situ, Shahyar Ghobadpour, Matthew Flaschen, Roan Kattouw, Moriel Schottlender, Stephane Bisson, Kunal Mehta
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MediaWiki 1.34+
PHP 5.4+
데이터베이스 변경 예
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예제 Talk:Structured Discussions
변수
  • $wgFlowExternalStore
  • $wgFlowMaxMentionCount
  • $wgFlowEnableOptInBetaFeature
  • $wgFlowHelpPage
  • $wgFlowReadOnly
  • $wgFlowAbuseFilterEmergencyDisableThreshold
  • $wgFlowCoreActionWhitelist
  • $wgFlowAjaxTimeout
  • $wgFlowCluster
  • $wgFlowNotificationTruncateLength
  • $wgFlowAbuseFilterEmergencyDisableAge
  • $wgFlowParsoidTimeout
  • $wgFlowCacheTime
  • $wgFlowDefaultWikiDb
  • $wgFlowServerCompileTemplates
  • $wgFlowAbuseFilterEmergencyDisableCount
  • $wgFlowContentFormat
  • $wgFlowMaxLimit
  • $wgFlowMaxThreadingDepth
  • $wgFlowParsoidForwardCookies
  • $wgFlowCacheVersion
  • $wgFlowParsoidHTTPProxy
  • $wgFlowParsoidPrefix
  • $wgFlowDefaultLimit
  • $wgFlowAbuseFilterGroup
  • $wgFlowParsoidURL
추가되는 권한
  • flow-hide
  • flow-lock
  • flow-delete
  • flow-suppress
  • flow-edit-post
  • flow-edit-title
  • flow-create-board
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StructuredDiscussions 확장 기능 번역
이슈 미해결 작업 · 버그 보고

StructuredDiscussions 확장기능은 토론 페이지에 대한 토론과 협업을 위한 시스템을 제공합니다. 이 문서에서는 정리된을 설치하고 설정하는 방법을 다룹니다. 이 문서를 사용하는 지침을 참조하십시오. You can try out Structured Discussions yourself at the Sandbox talk page.

This extension was previously known as Flow, and names in some places (like the Git repository) still reflect that.

The StructuredDiscussions extension was developed by the Collaboration team at the Wikimedia Foundation. It is still being maintained to fix bugs, but no substantial development on the extension has been done since 2015, other than a rename to "StructuredDiscussions" in September 2017. For more information on the development status of this extension, as well as an overview of its design, see Structured Discussions.

경고 경고: This extension is currently incompatible with temporary accounts.

설치

경고! 경고: Note that StructuredDiscussions is not compatible with SQLite.
  • Make sure that all required dependencies are set up and configured.
  • Make sure to set $wgVirtualRestConfig['modules']['parsoid']['url'] to point to the rest.php of your wiki.
  • If you have problems in MediaWiki 1.40, you should make some changes to remove virtualrestconfig of restbase in Flow. See task T337223.
  • 파일을 다운로드하고 Flow 폴더를 extensions/ 디렉토리에 넣어 주세요.
    개발자와 코딩 기여자는 Git을 이용해 확장기능을 다운받는 것이 좋습니다.cd extensions/
    git clone https://gerrit.wikimedia.org/r/mediawiki/extensions/Flow
  • Git에서 설치할 경우, PHP 의존 기능을 설치하려면 Composer를 실행하여 확장 기능 디렉터리에 composer install --no-dev를 발행하십시오. (잠재적인 문제에 대해서는 작업 T173141 을 참고하십시오.)
  • 아래의 코드를 LocalSettings.php 코드의 마지막에 추가합니다. 
    wfLoadExtension( 'Flow' );
  • 갱신 스크립트를 실행합니다. 이 스크립트는 이 확장기능을 필요로 하는 데이터 베이스 테이블을 자동적으로 작성합니다.
  • Yes 완료 – 위키의 ‘Special:Version’에 이동해서, 확장기능이 올바르게 설치된 것을 확인합니다.


Vagrant 설치:

  • Vagrant 를 사용하고 있는 경우에는, vagrant roles enable flow --provision로 설치해주세요
Please have a look at the troubleshooting section in case you run into known issues.

Post install

You must run "update.php" as the web server user (depends on configuration, but could be e.g. www-data). Otherwise, it can leave temporary /tmp/mw-UIDGeneratorUUID-UID-xx files that MediaWiki may be unable to open (작업 T55791). If you get a "Permission denied" error upon first visiting a Flow board you have to delete these files. Also, update.php will create {{FlowMention }} to support Flow's mention feature in VE (either @ or a toolbar menu provides a convenient auto-complete interface for mentions).

Make sure you follow the full instructions for enabling or disabling StructuredDiscussions, including the scripts mentioned there.

Dependencies

required
  • It is required to have an object cache. It is recommended that you use memcached for this. You may encounter problems with Redis currently.
strongly recommended
  • Parsoid for the option to store posts as HTML ($wgFlowContentFormat = 'html';) which improves performance.

This is how WMF wikis are configured, and hence is the most tested configuration by far. If you use MediaWiki-Vagrant, enabling StructuredDiscussions enables Parsoid and sets the format to 'html'.

optional
  • bug? if you have the VisualEditor present (e.g. perhaps to provide OOUI), then StructuredDiscussions will attempt to contact Parsoid even if VE is not enabled

Verifying installation

Visit one of the pages you enabled for StructuredDiscussions (see #Configuration) and try adding a topic and editing its header.

Configuration

Here are some settings you need to make in LocalSettings.php.

Enabling or disabling StructuredDiscussions

미디어위키 버전:
≤ 1.34

To enable or disable StructuredDiscussions for a namespace in MediaWiki before 1.35, first run populateContentModel.php on the affected namespaces (or you can do it on all). From 1.35 onward, this is no longer needed. E.g. if you are about to enable or disable it on NS_TALK (1) and NS_USER_TALK (3) as shown in the PHP config below: 

mwscript populateContentModel.php --wiki=somewiki --ns=1 --table=revision
mwscript populateContentModel.php --wiki=somewiki --ns=1 --table=archive
mwscript populateContentModel.php --wiki=somewiki --ns=1 --table=page

mwscript populateContentModel.php --wiki=somewiki --ns=3 --table=revision
mwscript populateContentModel.php --wiki=somewiki --ns=3 --table=archive
mwscript populateContentModel.php --wiki=somewiki --ns=3 --table=page

If mwscript is not configured, replace mwscript populateContentModel.php with php maintenance/populateContentModel.php

After the above, set $wgNamespaceContentModels [namespace] for particular namespaces. For example: 

  // These lines enable StructuredDiscussions on the "Talk" and "User talk" namespaces
  // All the NS_* constants here: https://www.mediawiki.org/wiki/Manual:Namespace_constants
  
  $wgNamespaceContentModels[NS_TALK] = 'flow-board';
  $wgNamespacesWithSubpages[NS_TALK] = true;
  $wgNamespaceContentModels[NS_USER_TALK] = 'flow-board';
  $wgNamespacesWithSubpages[NS_USER_TALK] = true;

Do not reassign the global ($wgNamespaceContentModels =).

To enable it on a single page, use Special:EnableStructuredDiscussions. This requires the flow-create-board right, which can be granted to any group (see Manual:User rights#Changing group permissions). 

  $wgGroupPermissions['somegroup']['flow-create-board'] = true;

See Extension:StructuredDiscussions/Turning off all StructuredDiscussions for how to turn off all StructuredDiscussions pages on your wiki.

Parsoid configuration

StructuredDiscussions uses the Virtual REST Service to contact a Parsoid or RESTBase service. If your wiki loads the VisualEditor extension, then you've probably already set this up. Look for the following in your LocalSettings.php: 

$wgVirtualRestConfig['modules']['parsoid'] = array(
  // URL to the Parsoid instance
  // Use port 8142 if you use the Debian package
  'url' => 'http://localhost:8000',
  // Parsoid "domain", see below (optional)
  'domain' => 'localhost',
  // Parsoid "prefix", see below (optional)
  'prefix' => 'localhost',
);

A single Parsoid server can handle multiple wikis. The Parsoid domain setting identifies your wiki configuration to Parsoid. By default it is set to the hostname named by $wgCanonicalServer, but you can pick an arbitrary string. Older versions of Parsoid also used a unique "prefix" to identify the server; you may need to list that here as well.

Parsoid must have been configured to match, using a line in Parsoid's localsettings.js like: 

parsoidConfig.setMwApi({ uri: 'http://path/to/my/wiki/api.php', domain: 'localhost', prefix: 'localhost' });

Again, the "domain" property is optional in the Parsoid configuration; it defaults to the hostname used in the uri property if not specified. The "prefix" property can also be omitted unless you are running an older version of Parsoid. Make sure the domain and prefix listed in Parsoid's localsettings.js match what's in your wiki's LocalSettings.php.

See Parsoid/Setup#Configuration for more details.

"maximum function nesting level of '100' reached, aborting"

If you get this error, you need to set xdebug.max_nesting_level = 200, probably in /etc/php5/apache2/php.ini.[1]

"Exception Caught: CAS is not implemented in Xyz"

StructuredDiscussions invokes $cache->cas() and some cache implementations including CACHE_ACCEL (APCBagOStuff) don't implement CAS. You probably need to use a different cache, for example install memcached and set $wgMainCacheType = CACHE_MEMCACHED;.

Permissions

Users must have the core edit permission to perform any write action in StructuredDiscussions. Many wikis only grant this permission to the 'user' (logged-in) group.

StructuredDiscussions defines many actions such as edit-post and delete-topic (see the list in FlowActions.php). The permissions vary depending on whether the post is your own and whether it has been moderated. For example, by default users can edit their own posts, but only users in the 'sysop' group have the flow-edit-post permission to edit anyone's post. You can override which groups have which permissions and what permissions are required for each Flow action; see 매뉴얼:유저 권한 for an overview of permissions.

Migrating existing pages

To migrate a single existing page, use Special:EnableStructuredDiscussions. It will handle archiving of a single page (then enabling StructuredDiscussions) automatically.

The script maintenance/convertNamespaceFromWikitext.php automates this namespace conversion and archiving, see Flow/Converting talk pages. It is somewhat WMF-specific, so evaluate its operation and backup your database before running it. Another script maintenance/convertAllLqtPages.php converts LiquidThreads pages and their threads to Flow boards and topics, see Flow/Converting LiquidThreads. Similar caveats apply.

Flow adds a Topic: namespace, see Extension default namespaces#flow. You can visit Special:PrefixIndex/Topic: to see if there are existing pages that conflict with this; if so run the maintenance script maintenance/namespaceDupes.php.

Configuration

Configuration settings in Flow.php
parameter default comment
$wgFlowHelpPage //www.mediawiki.org/wiki/Special:MyLanguage/Help:Extension:Flow URL for more information about the Flow notification system
$wgFlowCluster false $wgFlowCluster will define what external DB server should be used.

If set to false, the current database will be used to read/write data from/to. If StructuredDiscussions data is supposed to be stored on an external database, set the value of this variable to the $wgExternalServers key representing that external connection.

$wgFlowDefaultWikiDb false Database to use for StructuredDiscussions metadata. Set to false to use the wiki db.

Any number of wikis can and should share the same StructuredDiscussions database. The actual database name is stored inside internal tables for each message. Changing the database name after messages have been posted will cause old threads to become inaccessible.

$wgFlowExternalStore false Used for content storage.

False to store content in StructuredDiscussions db. Otherwise a cluster or list of clusters to use with ExternalStore. Provided clusters must exist in $wgExternalStores. Multiple clusters required for HA, so inserts can continue if one of the masters is down for maint or any other reason.

$wgFlowExternalStore = array( 'DB://cluster24', 'DB://cluster25' );

$wgFlowContentFormat html By default, StructuredDiscussions will store content in HTML.

However, this requires having Parsoid up and running, as it'll be necessary to convert HTML to wikitext for the basic editor. (n.b. to use VisualEditor, you'll definitely need Parsoid, so if you do support VE, might as well set this to HTML right away)

If $wgFlowParsoidURL is null, $wgFlowContentFormat will be forced to wikitext.

The 'wikitext' format is likely to be deprecated in the future.

$wgFlowParsoidURL null
경고 경고: Deprecated. Use $wgVirtualRestConfig['modules']['parsoid']['url'].

StructuredDiscussions Parsoid config

Please note that this configuration is separate from VE's Parsoid config.

$wgFlowParsoidPrefix null
경고 경고: Deprecated. Use $wgVirtualRestConfig['modules']['parsoid']['prefix'].

Flow Parsoid config

Please note that this configuration is separate from VE's Parsoid config.

$wgFlowParsoidTimeout null
경고 경고: Deprecated. Use $wgVirtualRestConfig['modules']['parsoid']['timeout'].

Flow Parsoid config

Please note that this configuration is separate from VE's Parsoid config.

$wgFlowParsoidForwardCookies false
경고 경고: Deprecated. Use $wgVirtualRestConfig['modules']['parsoid']['forwardCookies'].

Forward users' Cookie: headers to Parsoid. Required for private wikis (login required to read).

If the wiki is not private (i.e. $wgGroupPermissions['*']['read'] is true) this configuration variable will be ignored.

This feature requires a non-locking session store. The default session store will not work and will cause deadlocks when trying to use this feature. If you experience deadlock issues, enable $wgSessionsInObjectCache.

WARNING: ONLY enable this on private wikis and ONLY IF you understand the SECURITY IMPLICATIONS of sending Cookie headers to Parsoid over HTTP.

For security reasons, it is strongly recommended that $wgVirtualRestConfig['modules']['parsoid']['forwardCookies'] be pointed to localhost if this setting is enabled.
$wgFlowDefaultLimit 10 Limits for paging
$wgFlowMaxLimit 100 Limits for paging
$wgFlowMaxMentionCount 100 Maximum number of users that can be mentioned in one comment
$wgFlowMaxThreadingDepth 8 Max threading depth
$wgFlowCacheTime 60 * 60 * 24 * 3 The default length of time to cache StructuredDiscussions data in memcache.

This value can be tuned in conjunction with measurements of cache hit/miss ratios to achieve the desired tradeoff between memory usage, db queries, and response time. The initial default of 3 days means StructuredDiscussions will attempt to keep in memcache all data models requested in the last 3 days.

$wgFlowCacheVersion 4.9 A version string appended to cache keys.

Bump this if cache format or logic changes. StructuredDiscussions can be a cross-wiki database accessed by wikis running different versions of the Flow code; WMF sometimes overrides this globally in wmf-config/CommonSettings.php

$wgFlowAbuseFilterGroup 'flow' Custom group name for AbuseFilter

Acceptable values:

  • a specific value for flow-specific filters
  • 'default' to use core filters; make sure they are compatible with both core and StructuredDiscussions (e.g. StructuredDiscussions has no 'summary' variable to test on)
  • false to not use AbuseFilter
$wgFlowAbuseFilterEmergencyDisableThreshold 0.10 AbuseFilter emergency disable values for StructuredDiscussions
$wgFlowAbuseFilterEmergencyDisableCount 50 AbuseFilter emergency disable values for StructuredDiscussions
$wgFlowAbuseFilterEmergencyDisableAge 86400 // One day. AbuseFilter emergency disable values for StructuredDiscussions
$wgFlowAjaxTimeout 30 Timeout for StructuredDiscussions's AJAX requests (only affects ones that go through flow-api.js), in seconds
$wgFlowCoreActionWhitelist array( 'info', 'protect', 'unprotect', 'unwatch', 'watch', 'history', 'wikilove', 'move', 'delete' ); Actions that must pass through to MediaWiki on StructuredDiscussions-enabled pages
$wgFlowServerCompileTemplates false When set to true StructuredDiscussions will compile templates into their intermediate forms on every run. When set to false Flow will use the versions already written to disk. Production should always have this set to false.
$wgFlowSearchServers, $wgFlowSearchConnectionAttempts, $wgFlowSearchBannedPlugins, $wgFlowSearchOptimizeIndexForExperimentalHighlighter, $wgFlowSearchMaxShardsPerNode, $wgFlowSearchRefreshInterval, $wgFlowSearchMaintenanceTimeout, $wgFlowSearchReplicas, $wgFlowSearchShardCount, $wgFlowSearchCacheWarmers, $wgFlowSearchMergeSettings, $wgFlowSearchIndexAllocation, $wgFlowSearchEnabled N/A These former settings were removed because the code was unmaintained and broken. (You can look at the previous documentation if you want.) There is currently no code for supporting search in StructuredDiscussions.

System messages

Using the "Source editing" option on StructuredDiscussions boards makes visible the help text "위키텍스트는 마크업 사용을 하며, 언제든지 결과 미리 보기를 하실 수 있습니다.". The "uses markup" part is linked through the system message MediaWiki:Flow-wikitext-editor-help-uses-wikitext which makes use of an interwiki link to MediaWiki.org.

In some cases, this interwiki link, instead of pointing to Help:Formatting on MediaWiki.org, points to a (usually non-existent) Help:Formatting page on the host Wiki.

This can be corrected by changing the interwiki link on MediaWiki:Flow-wikitext-editor-help-uses-wikitext to an external link such as
[https://www.mediawiki.org/wiki/Help:Formatting uses markup].

Troubleshooting

Not getting Flow as expected? There are different fixes, depending on the source of the problem:

Badly configured parsoid/VE not working

When you get messages like Conversion from 'html' to 'wikitext' was requested, but core's Parser only supports 'wikitext' to 'html' conversion, you probably have a version of MediaWiki (e.g. REL1_39) where the StrucuredDiscussions extension does not use the zero-config parsoid. For using visual editor on discussions, you must manually configure parsoid-php.

For REL1_39 of MediaWiki and StructuredDiscussions, be sure to do all of the following: 

  1. wfLoadExtension('Flow');

  2. wfLoadExtension ('Parsoid', "$IP/vendor/wikimedia/parsoid/extension.json" );
  3. Set 
    $wgVirtualRestConfig['modules']['parsoid']
    appropriately. See example.

Older versions of MediaWiki may need Parsoid-JS and perhaps a code patch:

  1. Make sure you have correctly installed parsoid.
  2. When this bug hasn't been resolved, apply this patch to the StructuredDiscussions codebase.

If the problem persists, this discussion might be of some help.

Wrong Custom-Namespace Declaration Order

The Flow declares must go after the declare for a custom namespace. Correct order is: 

define("NS_PORTAL_TALK", 3005); 
$wgExtraNamespaces[NS_PORTAL_TALK] = "Portal_Talk"; 
$wgNamespaceContentModels[NS_PORTAL_TALK] = 'flow-board';
$wgNamespacesWithSubpages[NS_PORTAL_TALK] = true;

Wrong Native Constants

Talk pages in the Main namespace are defined as NS_TALK, not NS_MAIN_TALK

The correct declaration is: 

$wgNamespaceContentModels[NS_TALK] = 'flow-board';

Non-Registered Extension Constants

Extension:Page Forms namespace constant is supposed to be PF_NS_FORM_TALK. But that constant does not work in the Flow declare-- you must use the actual number: 107. This works: 

$wgNamespaceContentModels[107] = 'flow-board';

It's unknown to this author whether Page_Forms failed to register its constants correctly, or whether all extension must use numbers (not constants) with Flow. See list of some other extension namespace constants.

Old Remnants

If you're correctly getting Flow on all talk-pages in a namespace, except for one page in that namespace, there may be remnant junk in the talk page (even if it appears empty). Do the following:

  1. Browse to the talk page that won't load Flow, e.g.: Portal_Talk:Welcome
  2. Delete the Talk page using the Delete tab.
  3. Go to the content page for that talk page, e.g.: Portal:Welcome
  4. Click Discuss.
  5. You get Flow.

Parsoid not working in StructuredDiscussions (Flow)

To get Parsoid to work with StructuredDiscussions (Flow):

  1. In LocalSettings.php, explicitely load Parsoid like so: wfLoadExtension( 'Parsoid', "vendor/wikimedia/parsoid/extension.json" );
  2. Apply the following patch.

For more details, see Topic:X8mv19b4va26u8tz.

Architecture

See Flow/Architecture.

Spam

See Extension:StructuredDiscussions/Spam for more information on how to fight spam in Flow.

Moderation

See Extension:StructuredDiscussions/Moderation for more information on moderation in Flow.

Export and Import

There is maintenance script to export Flow data similar to Manual:DumpBackup.php

php extensions/Flow/maintenance/dumpBackup.php

작업 T114703 - gives some hints about the import.

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