MediaWiki  1.27.2
MergeHistory Class Reference

Handles the backend logic of merging the histories of two pages. More...

Collaboration diagram for MergeHistory:

Public Member Functions

 __construct (Title $source, Title $dest, $timestamp=false)
 MergeHistory constructor. More...
 
 checkPermissions (User $user, $reason)
 Check if the merge is possible. More...
 
 getMergedRevisionCount ()
 Get the number of revisions that were moved Used in the SpecialMergeHistory success message. More...
 
 getRevisionCount ()
 Get the number of revisions that will be moved. More...
 
 isValidMerge ()
 Does various sanity checks that the merge is valid. More...
 
 merge (User $user, $reason= '')
 Actually attempt the history move. More...
 

Public Attributes

const REVISION_LIMIT = 5000
 int Maximum number of revisions that can be merged at once (avoid too much slave lag) More...
 

Protected Attributes

DatabaseBase $dbw
 Database that we are using. More...
 
Title $dest
 Page to which history will be merged. More...
 
MWTimestamp $maxTimestamp
 Maximum timestamp that we can use (oldest timestamp of dest) More...
 
integer $revisionsMerged
 Number of revisions merged (for Special:MergeHistory success message) More...
 
Title $source
 Page from which history will be merged. More...
 
MWTimestamp bool $timestampLimit
 Timestamp upto which history from the source will be merged. More...
 
string $timeWhere
 SQL WHERE condition that selects source revisions to insert into destination. More...
 

Detailed Description

Handles the backend logic of merging the histories of two pages.

Since
1.27

Definition at line 34 of file MergeHistory.php.

Constructor & Destructor Documentation

MergeHistory::__construct ( Title  $source,
Title  $dest,
  $timestamp = false 
)

MergeHistory constructor.

Parameters
Title$sourcePage from which history will be merged
Title$destPage to which history will be merged
string | bool$timestampTimestamp up to which history from the source will be merged

Definition at line 66 of file MergeHistory.php.

References $dest, $maxTimestamp, $source, $timestamp, DB_MASTER, source, and wfGetDB().

Member Function Documentation

MergeHistory::checkPermissions ( User  $user,
  $reason 
)

Check if the merge is possible.

Parameters
User$user
string$reason
Returns
Status

Definition at line 158 of file MergeHistory.php.

References $status, as, User\isAllowed(), EditPage\matchSummarySpamRegex(), source, and wfMergeErrorArrays().

Referenced by merge().

MergeHistory::getMergedRevisionCount ( )

Get the number of revisions that were moved Used in the SpecialMergeHistory success message.

Returns
int

Definition at line 148 of file MergeHistory.php.

References $revisionsMerged.

MergeHistory::getRevisionCount ( )

Get the number of revisions that will be moved.

Returns
int

Definition at line 133 of file MergeHistory.php.

References $count, $timeWhere, and source.

Referenced by isValidMerge().

MergeHistory::isValidMerge ( )

Does various sanity checks that the merge is valid.

Only things based on the two pages should be checked here.

Returns
Status

Definition at line 196 of file MergeHistory.php.

References $status, getRevisionCount(), Message\numParam(), and source.

Referenced by merge().

MergeHistory::merge ( User  $user,
  $reason = '' 
)

Actually attempt the history move.

Todo:
if all versions of page A are moved to B and then a user tries to do a reverse-merge via the "unmerge" log link, then page A will still be a redirect (as it was after the original merge), though it will have the old revisions back from before (as expected). The user may have to "undo" the redirect manually to finish the "unmerge". Maybe this should delete redirects at the source page of merges?
Parameters
User$user
string$reason
Returns
Status status of the history merge

Definition at line 244 of file MergeHistory.php.

References $status, $timeWhere, checkPermissions(), WikiPage\factory(), ContentHandler\getForTitle(), Revision\insertOn(), isValidMerge(), Hooks\run(), source, TS_MW, and wfMessage().

Member Data Documentation

DatabaseBase MergeHistory::$dbw
protected

Database that we are using.

Definition at line 46 of file MergeHistory.php.

Title MergeHistory::$dest
protected

Page to which history will be merged.

Definition at line 43 of file MergeHistory.php.

Referenced by __construct().

MWTimestamp MergeHistory::$maxTimestamp
protected

Maximum timestamp that we can use (oldest timestamp of dest)

Definition at line 49 of file MergeHistory.php.

Referenced by __construct().

integer MergeHistory::$revisionsMerged
protected

Number of revisions merged (for Special:MergeHistory success message)

Definition at line 58 of file MergeHistory.php.

Referenced by getMergedRevisionCount().

Title MergeHistory::$source
protected

Page from which history will be merged.

Definition at line 40 of file MergeHistory.php.

Referenced by __construct().

MWTimestamp bool MergeHistory::$timestampLimit
protected

Timestamp upto which history from the source will be merged.

Definition at line 55 of file MergeHistory.php.

string MergeHistory::$timeWhere
protected

SQL WHERE condition that selects source revisions to insert into destination.

Definition at line 52 of file MergeHistory.php.

Referenced by getRevisionCount(), and merge().

const MergeHistory::REVISION_LIMIT = 5000

int Maximum number of revisions that can be merged at once (avoid too much slave lag)

Definition at line 37 of file MergeHistory.php.

Referenced by MergeHistoryTest\testIsValidMergeRevisionLimit().


The documentation for this class was generated from the following file: