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1141 <li class=
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1177 <li class=
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1178 <a href=
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1189 <li class=
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1202 <a href=
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1203 objectTypeDefinition
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1334 <a href=
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1345 <li class=
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1347 userNotificationEvent
1357 <li class=
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1358 <a href=
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1369 <li class=
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1370 <a href=
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1418 <nav class=
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1420 <span class=
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1435 <label class=
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1436 Migrating from WSC
5.3
1437 <span class=
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1439 <nav class=
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1440 <label class=
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1441 <span class=
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1442 Migrating from WSC
5.3
1444 <ul class=
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1464 Session Handling and Authentication
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1500 Third Party Libraries
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1523 Migrating from WSC
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1526 <nav class=
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1527 <label class=
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1528 <span class=
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1529 Migrating from WSC
5.2
1531 <ul class=
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1549 <li class=
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1551 Templates and Languages
1561 <li class=
"md-nav__item">
1562 <a href=
"../../migration/wsc52/libraries/" class=
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1563 Third Party Libraries
1580 <li class=
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1586 Migrating from WSC
3.1
1587 <span class=
"md-nav__icon md-icon"></span>
1589 <nav class=
"md-nav" aria-label=
"Migrating from WSC 3.1" data-md-level=
"2">
1590 <label class=
"md-nav__title" for=
"__nav_6_3">
1591 <span class=
"md-nav__icon md-icon"></span>
1592 Migrating from WSC
3.1
1594 <ul class=
"md-nav__list" data-md-scrollfix
>
1600 <li class=
"md-nav__item">
1601 <a href=
"../../migration/wsc31/php/" class=
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"__nav_6_4" >
1624 <label class=
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1625 Migrating from WSC
3.0
1626 <span class=
"md-nav__icon md-icon"></span>
1628 <nav class=
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"Migrating from WSC 3.0" data-md-level=
"2">
1629 <label class=
"md-nav__title" for=
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1630 <span class=
"md-nav__icon md-icon"></span>
1631 Migrating from WSC
3.0
1633 <ul class=
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1712 Migrating from WCF
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1715 <nav class=
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1718 Migrating from WCF
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1720 <ul class=
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1911 <li class=
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1912 <a href=
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1918 <li class=
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1919 <a href=
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1920 Differences to Plugins
1923 <nav class=
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1924 <ul class=
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1926 <li class=
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1927 <a href=
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1933 <li class=
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1934 <a href=
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1935 Unique Database Table Prefix
1940 <li class=
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1941 <a href=
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1942 Separate Domain and Path Configuration
1952 <li class=
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1953 <a href=
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1957 <nav class=
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1958 <ul class=
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1960 <li class=
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1961 <a href=
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1965 <nav class=
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1966 <ul class=
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1968 <li class=
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1969 <a href=
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1970 <isapplication
>1</isapplication
>
1975 <li class=
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1976 <a href=
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1977 <applicationdirectory
>example
</applicationdirectory
>
1987 <li class=
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1988 <a href=
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1989 Minimum Required Files
2007 <div class=
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2008 <article class=
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2011 <a href=
"https://github.com/WoltLab/docs.woltlab.com/edit/5.4/docs/php/apps.md" title=
"Edit this page" class=
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2012 <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>
2016 <h1 id=
"apps-for-woltlab-suite">Apps for WoltLab Suite
<a class=
"headerlink" href=
"#apps-for-woltlab-suite" title=
"Permanent link">#
</a></h1>
2017 <h2 id=
"introduction">Introduction
<a class=
"headerlink" href=
"#introduction" title=
"Permanent link">#
</a></h2>
2018 <p>Apps are among the most powerful components in WoltLab Suite. Unlike plugins
2019 that extend an existing functionality and pages, apps have their own frontend
2020 with a dedicated namespace, database table prefixes and template locations.
</p>
2021 <p>However, apps are meant to be a logical (and to some extent physical) separation
2022 from other parts of the framework, including other installed apps. They offer
2023 an additional layer of isolation and enable you to re-use class and template
2024 names that are already in use by the Core itself.
</p>
2025 <p>If you've come here, thinking about the question if your next package should be
2026 an app instead of a regular plugin, the result is almost always:
<em>No.
</em></p>
2027 <h2 id=
"differences-to-plugins">Differences to Plugins
<a class=
"headerlink" href=
"#differences-to-plugins" title=
"Permanent link">#
</a></h2>
2028 <p>Apps do offer a couple of unique features that are not available to plugins and
2029 there are valid reasons to use one instead of a plugin, but they also increase
2030 both the code and system complexity. There is a performance penalty for each
2031 installed app, regardless if it is actively used in a request or not, simplying
2032 being there forces the Core to include it in many places, for example, class
2033 resolution or even simple tasks such as constructing a link.
</p>
2034 <h3 id=
"unique-namespace">Unique Namespace
<a class=
"headerlink" href=
"#unique-namespace" title=
"Permanent link">#
</a></h3>
2035 <p>Each app has its own unique namespace that is entirely separated from the Core
2036 and any other installed apps. The namespace is derived from the last part of the
2037 package identifier, for example,
<code>com.example.foo
</code> will yield the namespace
<code>foo
</code>.
</p>
2038 <p>The namespace is always relative to the installation directory of the app, it
2039 doesn't matter if the app is installed on
<code>example.com/foo/
</code> or in
<code>example.com/bar/
</code>,
2040 the namespace will always resolve to the right directory.
</p>
2041 <p>This app namespace is also used for ACP templates, frontend templates and files:
</p>
2042 <div class=
"highlight"><pre><span></span><code><span class=
"c"><!-- somewhere in the package.xml --
></span>
2043 <span class=
"nt"><instructions
</span> <span class=
"na">type=
</span><span class=
"s">"file
"</span> <span class=
"na">application=
</span><span class=
"s">"foo
"</span> <span class=
"nt">/
></span>
2045 <h3 id=
"unique-database-table-prefix">Unique Database Table Prefix
<a class=
"headerlink" href=
"#unique-database-table-prefix" title=
"Permanent link">#
</a></h3>
2046 <p>All database tables make use of a generic prefix that is derived from one of the
2047 installed apps, including
<code>wcf
</code> which resolves to the Core itself. Following the
2048 aforementioned example, the new prefix
<code>fooN_
</code> will be automatically registered
2049 and recognized in any generated statement.
</p>
2050 <p>Any
<code>DatabaseObject
</code> that uses the app's namespace is automatically assumed to
2051 use the app's database prefix. For instance,
<code>foo\data\bar\Bar
</code> is implicitly
2052 mapped to the database table
<code>fooN_bar
</code>.
</p>
2053 <p>The app prefix is recognized in SQL-PIPs and statements that reference one of
2054 its database tables are automatically rewritten to use the Core's instance number.
</p>
2055 <h3 id=
"separate-domain-and-path-configuration">Separate Domain and Path Configuration
<a class=
"headerlink" href=
"#separate-domain-and-path-configuration" title=
"Permanent link">#
</a></h3>
2056 <p>Any controller that is provided by a plugin is served from the configured domain
2057 and path of the corresponding app, such as plugins for the Core are always
2058 served from the Core's directory. Apps are different and use their own domain
2059 and/or path to present their content, additionally, this allows the app to re-use
2060 a controller name that is already provided by the Core or any other app itself.
</p>
2061 <h2 id=
"creating-an-app">Creating an App
<a class=
"headerlink" href=
"#creating-an-app" title=
"Permanent link">#
</a></h2>
2062 <div class=
"admonition danger">
2063 <p class=
"admonition-title">This is a non-reversible operation! Once a package has been installed, its type cannot be changed without uninstalling and reinstalling the entire package, an app will always be an app and vice versa.
</p>
2065 <h3 id=
"packagexml"><code>package.xml
</code><a class=
"headerlink" href=
"#packagexml" title=
"Permanent link">#
</a></h3>
2066 <p>The
<code>package.xml
</code> supports two additional elements in the
<code><packageinformation
></code>
2067 block that are unique to applications.
</p>
2068 <h4 id=
"isapplication1isapplication"><code><isapplication
>1</isapplication
></code><a class=
"headerlink" href=
"#isapplication1isapplication" title=
"Permanent link">#
</a></h4>
2069 <p>This element is responsible to flag a package as an app.
</p>
2070 <h4 id=
"applicationdirectoryexampleapplicationdirectory"><code><applicationdirectory
>example
</applicationdirectory
></code><a class=
"headerlink" href=
"#applicationdirectoryexampleapplicationdirectory" title=
"Permanent link">#
</a></h4>
2071 <p>Sets the suggested name of the application directory when installing it, the
2072 path result in
<code><path-to-the-core
>/example/
</code>. If you leave this element out,
2073 the app identifier (
<code>com.example.foo -
> foo
</code>) will be used instead.
</p>
2074 <h3 id=
"minimum-required-files">Minimum Required Files
<a class=
"headerlink" href=
"#minimum-required-files" title=
"Permanent link">#
</a></h3>
2075 <p>An example project with the
<a href=
"https://github.com/WoltLab/woltlab.github.io/tree/master/_includes/tutorial/basic-app/">source code can be found on GitHub
</a>,
2076 it includes everything that is required for a basic app.
</p>
2082 <div class=
"md-source-date">
2085 Last update:
2021-
01-
08
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"md-dialog__inner md-typeset"></div>
2165 <script id=
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"search":
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2168 <script src=
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