MediaWiki REL1_33
IMaintainableDatabase.php
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1<?php
2
24namespace Wikimedia\Rdbms;
25
26use Exception;
27use RuntimeException;
28
58 public function tableName( $name, $format = 'quoted' );
59
71 public function tableNames();
72
84 public function tableNamesN();
85
93 public function textFieldSize( $table, $field );
94
111 public function sourceFile(
112 $filename,
113 callable $lineCallback = null,
114 callable $resultCallback = null,
115 $fname = false,
116 callable $inputCallback = null
117 );
118
132 public function sourceStream(
133 $fp,
134 callable $lineCallback = null,
135 callable $resultCallback = null,
136 $fname = __METHOD__,
137 callable $inputCallback = null
138 );
139
147 public function streamStatementEnd( &$sql, &$newLine );
148
155 public function dropTable( $tableName, $fName = __METHOD__ );
156
181 public function deadlockLoop();
182
191 public function listViews( $prefix = null, $fname = __METHOD__ );
192
208 public function duplicateTableStructure(
209 $oldName, $newName, $temporary = false, $fname = __METHOD__
210 );
211
224
265 public function lockTables( array $read, array $write, $method );
266
277 public function unlockTables( $method );
278
287 public function listTables( $prefix = null, $fname = __METHOD__ );
288
297 public function indexUnique( $table, $index );
298
308 public function fieldInfo( $table, $field );
309}
310
311class_alias( IMaintainableDatabase::class, 'IMaintainableDatabase' );
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
if(defined( 'MW_SETUP_CALLBACK')) $fname
Customization point after all loading (constants, functions, classes, DefaultSettings,...
Definition Setup.php:123
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition injection.txt:37
Basic database interface for live and lazy-loaded relation database handles.
Definition IDatabase.php:38
Advanced database interface for IDatabase handles that include maintenance methods.
tableName( $name, $format='quoted')
Format a table name ready for use in constructing an SQL query.
tableNamesN()
Fetch a number of table names into an zero-indexed numerical array This is handy when you need to con...
deadlockLoop()
Perform a deadlock-prone transaction.
fieldInfo( $table, $field)
mysql_fetch_field() wrapper Returns false if the field doesn't exist
streamStatementEnd(&$sql, &$newLine)
Called by sourceStream() to check if we've reached a statement end.
listViews( $prefix=null, $fname=__METHOD__)
Lists all the VIEWs in the database.
indexUnique( $table, $index)
Determines if a given index is unique.
listTables( $prefix=null, $fname=__METHOD__)
List all tables on the database.
textFieldSize( $table, $field)
Returns the size of a text field, or -1 for "unlimited".
tableNames()
Fetch a number of table names into an array This is handy when you need to construct SQL for joins.
unlockTables( $method)
Unlock all tables locked via lockTables()
dropTable( $tableName, $fName=__METHOD__)
Delete a table.
lockTables(array $read, array $write, $method)
Lock specific tables.
sourceFile( $filename, callable $lineCallback=null, callable $resultCallback=null, $fname=false, callable $inputCallback=null)
Read and execute SQL commands from a file.
tableLocksHaveTransactionScope()
Checks if table locks acquired by lockTables() are transaction-bound in their scope.
sourceStream( $fp, callable $lineCallback=null, callable $resultCallback=null, $fname=__METHOD__, callable $inputCallback=null)
Read and execute commands from an open file handle.
duplicateTableStructure( $oldName, $newName, $temporary=false, $fname=__METHOD__)
Creates a new table with structure copied from existing table.
The wiki should then use memcached to cache various data To use multiple just add more items to the array To increase the weight of a make its entry a array("192.168.0.1:11211", 2))