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1194 <a href=
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1206 <a href=
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1217 <li class=
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1218 <a href=
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1229 <li class=
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1230 <a href=
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1242 <a href=
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1253 <li class=
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1265 <li class=
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1266 <a href=
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1277 <li class=
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1278 <a href=
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1289 <li class=
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1290 <a href=
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1301 <li class=
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1302 <a href=
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1313 <li class=
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1314 <a href=
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1315 userNotificationEvent
1325 <li class=
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1326 <a href=
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1337 <li class=
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1338 <a href=
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1357 <li class=
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1369 <a href=
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1387 <a href=
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1463 Migrating from WSC
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1491 Session Handling and Authentication
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1527 Third Party Libraries
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5.2
1558 <ul class=
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1578 Templates and Languages
1588 <li class=
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1589 <a href=
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"md-nav__link">
1590 Third Party Libraries
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1613 Migrating from WSC
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1619 Migrating from WSC
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1621 <ul class=
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1658 Migrating from WSC
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1660 <ul class=
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1739 Migrating from WCF
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1745 Migrating from WCF
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1747 <ul class=
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1753 <li class=
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1754 <a href=
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1933 <span class=
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1936 <ul class=
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1938 <li class=
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1939 <a href=
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1945 <li class=
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1946 <a href=
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1952 <li class=
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1974 <div class=
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1975 <article class=
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1978 <a href=
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1979 <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>
1983 <h1 id=
"database-php-api">Database PHP API
<a class=
"headerlink" href=
"#database-php-api" title=
"Permanent link">#
</a></h1>
1984 <div class=
"admonition info">
1985 <p class=
"admonition-title">Available since WoltLab Suite
5.2.
</p>
1987 <p>While the
<a href=
"../pip/sql/">sql
</a> package installation plugin supports adding and removing tables, columns, and indices, it is not able to handle cases where the added table, column, or index already exist.
1988 We have added a new PHP-based API to manipulate the database scheme which can be used in combination with the
<a href=
"../pip/script/">script
</a> package installation plugin that skips parts that already exist:
</p>
1989 <div class=
"highlight"><pre><span></span><code><span class=
"nv">$tables
</span> <span class=
"o">=
</span> <span class=
"p">[
</span>
1990 <span class=
"c1">// list of `DatabaseTable` objects
</span>
1991 <span class=
"p">];
</span>
1993 <span class=
"p">(
</span><span class=
"k">new
</span> <span class=
"nx">DatabaseTableChangeProcessor
</span><span class=
"p">(
</span>
1994 <span class=
"sd">/** @var ScriptPackageInstallationPlugin $this */
</span>
1995 <span class=
"nv">$this
</span><span class=
"o">-
></span><span class=
"na">installation
</span><span class=
"o">-
></span><span class=
"na">getPackage
</span><span class=
"p">(),
</span>
1996 <span class=
"nv">$tables
</span><span class=
"p">,
</span>
1997 <span class=
"nx">WCF
</span><span class=
"o">::
</span><span class=
"na">getDB
</span><span class=
"p">()
</span><span class=
"o">-
></span><span class=
"na">getEditor
</span><span class=
"p">())
</span>
1998 <span class=
"p">)
</span><span class=
"o">-
></span><span class=
"na">process
</span><span class=
"p">();
</span>
2000 <p>All of the relevant components can be found in the
<code>wcf\system\database\table
</code> namespace.
</p>
2001 <p>With WoltLab Suite
5.4, you should use the new
<a href=
"../pip/database/">database
</a> package installation plugin for which you only have to return the array of affected database tables:
</p>
2002 <div class=
"highlight"><pre><span></span><code><span class=
"k">return
</span> <span class=
"p">[
</span>
2003 <span class=
"c1">// list of `DatabaseTable` objects
</span>
2004 <span class=
"p">];
</span>
2006 <h2 id=
"database-tables">Database Tables
<a class=
"headerlink" href=
"#database-tables" title=
"Permanent link">#
</a></h2>
2007 <p>There are two classes representing database tables:
<code>DatabaseTable
</code> and
<code>PartialDatabaseTable
</code>.
2008 If a new table should be created, use
<code>DatabaseTable
</code>.
2009 In all other cases,
<code>PartialDatabaseTable
</code> should be used as it provides an additional save-guard against accidentally creating a new table by having a typo in the table name:
2010 If the tables does not already exist, a table represented by
<code>PartialDatabaseTable
</code> will cause an exception (while a
<code>DatabaseTable
</code> table will simply be created).
</p>
2011 <p>To create a table, a
<code>DatabaseTable
</code> object with the table's name as to be created and table's columns, foreign keys and indices have to be specified:
</p>
2012 <div class=
"highlight"><pre><span></span><code><span class=
"nx">DatabaseTable
</span><span class=
"o">::
</span><span class=
"na">create
</span><span class=
"p">(
</span><span class=
"s1">'foo1_bar
'</span><span class=
"p">)
</span>
2013 <span class=
"o">-
></span><span class=
"na">columns
</span><span class=
"p">([
</span>
2014 <span class=
"c1">// columns
</span>
2015 <span class=
"p">])
</span>
2016 <span class=
"o">-
></span><span class=
"na">foreignKeys
</span><span class=
"p">([
</span>
2017 <span class=
"c1">// foreign keys
</span>
2018 <span class=
"p">])
</span>
2019 <span class=
"o">-
></span><span class=
"na">indices
</span><span class=
"p">([
</span>
2020 <span class=
"c1">// indices
</span>
2021 <span class=
"p">])
</span>
2023 <p>To update a table, the same code as above can be used, except for
<code>PartialDatabaseTable
</code> being used instead of
<code>DatabaseTable
</code>.
</p>
2024 <p>To drop a table, only the
<code>drop()
</code> method has to be called:
</p>
2025 <div class=
"highlight"><pre><span></span><code><span class=
"nx">PartialDatabaseTable
</span><span class=
"o">::
</span><span class=
"na">create
</span><span class=
"p">(
</span><span class=
"s1">'foo1_bar
'</span><span class=
"p">)
</span>
2026 <span class=
"o">-
></span><span class=
"na">drop
</span><span class=
"p">()
</span>
2028 <h2 id=
"columns">Columns
<a class=
"headerlink" href=
"#columns" title=
"Permanent link">#
</a></h2>
2029 <p>To represent a column of a database table, you have to create an instance of the relevant column class found in the
<code>wcf\system\database\table\column
</code> namespace.
2030 Such instances are created similarly to database table objects using the
<code>create()
</code> factory method and passing the column name as the parameter.
</p>
2031 <p>Every column type supports the following methods:
</p>
2033 <li><code>defaultValue($defaultValue)
</code> sets the default value of the column (default: none).
</li>
2034 <li><code>drop()
</code> to drop the column.
</li>
2035 <li><code>notNull($notNull = true)
</code> sets if the value of the column can be
<code>NULL
</code> (default:
<code>false
</code>).
</li>
2037 <p>Depending on the specific column class implementing additional interfaces, the following methods are also available:
</p>
2039 <li><code>IAutoIncrementDatabaseTableColumn::autoIncrement($autoIncrement = true)
</code> sets if the value of the colum is auto-incremented.
</li>
2040 <li><code>IDecimalsDatabaseTableColumn::decimals($decimals)
</code> sets the number of decimals the column supports.
</li>
2041 <li><code>IEnumDatabaseTableColumn::enumValues(array $values)
</code> sets the predetermined set of valid values of the column.
</li>
2042 <li><code>ILengthDatabaseTableColumn::length($length)
</code> sets the (maximum) length of the column.
</li>
2044 <p>Additionally, there are some additionally classes of commonly used columns with specific properties:
</p>
2046 <li><code>DefaultFalseBooleanDatabaseTableColumn
</code> (a
<code>tinyint
</code> column with length
<code>1</code>, default value
<code>0</code> and whose values cannot be
<code>null
</code>)
</li>
2047 <li><code>DefaultTrueBooleanDatabaseTableColumn
</code> (a
<code>tinyint
</code> column with length
<code>0</code>, default value
<code>0</code> and whose values cannot be
<code>null
</code>)
</li>
2048 <li><code>NotNullInt10DatabaseTableColumn
</code> (a
<code>int
</code> column with length
<code>10</code> and whose values cannot be
<code>null
</code>)
</li>
2049 <li><code>NotNullVarchar191DatabaseTableColumn
</code> (a
<code>varchar
</code> column with length
<code>191</code> and whose values cannot be
<code>null
</code>)
</li>
2050 <li><code>NotNullVarchar255DatabaseTableColumn
</code> (a
<code>varchar
</code> column with length
<code>255</code> and whose values cannot be
<code>null
</code>)
</li>
2051 <li><code>ObjectIdDatabaseTableColumn
</code> (a
<code>int
</code> column with length
<code>10</code>, whose values cannot be
<code>null
</code>, and whose values are auto-incremented)
</li>
2054 <div class=
"highlight"><pre><span></span><code><span class=
"nx">DefaultFalseBooleanDatabaseTableColumn
</span><span class=
"o">::
</span><span class=
"na">create
</span><span class=
"p">(
</span><span class=
"s1">'isDisabled
'</span><span class=
"p">)
</span>
2056 <span class=
"nx">NotNullInt10DatabaseTableColumn
</span><span class=
"o">::
</span><span class=
"na">create
</span><span class=
"p">(
</span><span class=
"s1">'fooTypeID
'</span><span class=
"p">)
</span>
2058 <span class=
"nx">SmallintDatabaseTableColumn
</span><span class=
"o">::
</span><span class=
"na">create
</span><span class=
"p">(
</span><span class=
"s1">'bar
'</span><span class=
"p">)
</span>
2059 <span class=
"o">-
></span><span class=
"na">length
</span><span class=
"p">(
</span><span class=
"mi">5</span><span class=
"p">)
</span>
2060 <span class=
"o">-
></span><span class=
"na">notNull
</span><span class=
"p">()
</span>
2062 <h2 id=
"foreign-keys">Foreign Keys
<a class=
"headerlink" href=
"#foreign-keys" title=
"Permanent link">#
</a></h2>
2063 <p>Foreign keys are represented by
<code>DatabaseTableForeignKey
</code> objects:
</p>
2064 <div class=
"highlight"><pre><span></span><code><span class=
"nx">DatabaseTableForeignKey
</span><span class=
"o">::
</span><span class=
"na">create
</span><span class=
"p">()
</span>
2065 <span class=
"o">-
></span><span class=
"na">columns
</span><span class=
"p">([
</span><span class=
"s1">'fooID
'</span><span class=
"p">])
</span>
2066 <span class=
"o">-
></span><span class=
"na">referencedTable
</span><span class=
"p">(
</span><span class=
"s1">'wcf1_foo
'</span><span class=
"p">)
</span>
2067 <span class=
"o">-
></span><span class=
"na">referencedColumns
</span><span class=
"p">([
</span><span class=
"s1">'fooID
'</span><span class=
"p">])
</span>
2068 <span class=
"o">-
></span><span class=
"na">onDelete
</span><span class=
"p">(
</span><span class=
"s1">'CASCADE
'</span><span class=
"p">)
</span>
2070 <p>The supported actions for
<code>onDelete()
</code> and
<code>onUpdate()
</code> are
<code>CASCADE
</code>,
<code>NO ACTION
</code>, and
<code>SET NULL
</code>.
2071 To drop a foreign key, all of the relevant data to create the foreign key has to be present and the
<code>drop()
</code> method has to be called.
</p>
2072 <p><code>DatabaseTableForeignKey::create()
</code> also supports the foreign key name as a parameter.
2073 If it is not present,
<code>DatabaseTable::foreignKeys()
</code> will automatically set one based on the foreign key's data.
</p>
2074 <h2 id=
"indices">Indices
<a class=
"headerlink" href=
"#indices" title=
"Permanent link">#
</a></h2>
2075 <p>Indices are represented by
<code>DatabaseTableIndex
</code> objects:
</p>
2076 <div class=
"highlight"><pre><span></span><code><span class=
"nx">DatabaseTableIndex
</span><span class=
"o">::
</span><span class=
"na">create
</span><span class=
"p">()
</span>
2077 <span class=
"o">-
></span><span class=
"na">type
</span><span class=
"p">(
</span><span class=
"nx">DatabaseTableIndex
</span><span class=
"o">::
</span><span class=
"na">UNIQUE_TYPE
</span><span class=
"p">)
</span>
2078 <span class=
"o">-
></span><span class=
"na">columns
</span><span class=
"p">([
</span><span class=
"s1">'fooID
'</span><span class=
"p">])
</span>
2080 <p>There are four different types:
<code>DatabaseTableIndex::DEFAULT_TYPE
</code> (default),
<code>DatabaseTableIndex::PRIMARY_TYPE
</code>,
<code>DatabaseTableIndex::UNIQUE_TYPE
</code>, and
<code>DatabaseTableIndex::FULLTEXT_TYPE
</code>.
2081 For primary keys, there is also the
<code>DatabaseTablePrimaryIndex
</code> class which automatically sets the type to
<code>DatabaseTableIndex::PRIMARY_TYPE
</code>.
2082 To drop a index, all of the relevant data to create the index has to be present and the
<code>drop()
</code> method has to be called.
</p>
2083 <p><code>DatabaseTableIndex::create()
</code> also supports the index name as a parameter.
2084 If it is not present,
<code>DatabaseTable::indices()
</code> will automatically set one based on the index data.
</p>
2090 <div class=
"md-source-date">
2093 Last update:
2021-
03-
16
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