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PhabricatorVersionedDraft.php
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Created
Sat, Sep 7, 14:57
Size
2 KB
Mime Type
text/x-php
Expires
Mon, Sep 9, 14:57 (1 d, 21 h)
Engine
blob
Format
Raw Data
Handle
20601947
Attached To
rPH Phabricator
PhabricatorVersionedDraft.php
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<?php
final
class
PhabricatorVersionedDraft
extends
PhabricatorDraftDAO
{
const
KEY_VERSION
=
'draft.version'
;
protected
$objectPHID
;
protected
$authorPHID
;
protected
$version
;
protected
$properties
=
array
();
protected
function
getConfiguration
()
{
return
array
(
self
::
CONFIG_SERIALIZATION
=>
array
(
'properties'
=>
self
::
SERIALIZATION_JSON
,
),
self
::
CONFIG_COLUMN_SCHEMA
=>
array
(
'version'
=>
'uint32'
,
),
self
::
CONFIG_KEY_SCHEMA
=>
array
(
'key_object'
=>
array
(
'columns'
=>
array
(
'objectPHID'
,
'authorPHID'
,
'version'
),
'unique'
=>
true
,
),
),
)
+
parent
::
getConfiguration
();
}
public
function
setProperty
(
$key
,
$value
)
{
$this
->
properties
[
$key
]
=
$value
;
return
$this
;
}
public
function
getProperty
(
$key
,
$default
=
null
)
{
return
idx
(
$this
->
properties
,
$key
,
$default
);
}
public
static
function
loadDraft
(
$object_phid
,
$viewer_phid
)
{
return
id
(
new
PhabricatorVersionedDraft
())->
loadOneWhere
(
'objectPHID = %s AND authorPHID = %s ORDER BY version DESC LIMIT 1'
,
$object_phid
,
$viewer_phid
);
}
public
static
function
loadOrCreateDraft
(
$object_phid
,
$viewer_phid
,
$version
)
{
$draft
=
self
::
loadDraft
(
$object_phid
,
$viewer_phid
);
if
(
$draft
)
{
return
$draft
;
}
try
{
return
id
(
new
self
())
->
setObjectPHID
(
$object_phid
)
->
setAuthorPHID
(
$viewer_phid
)
->
setVersion
((
int
)
$version
)
->
save
();
}
catch
(
AphrontDuplicateKeyQueryException
$ex
)
{
$duplicate_exception
=
$ex
;
}
// In rare cases we can race ourselves, and at one point there was a bug
// which caused the browser to submit two preview requests at exactly
// the same time. If the insert failed with a duplicate key exception,
// try to load the colliding row to recover from it.
$draft
=
self
::
loadDraft
(
$object_phid
,
$viewer_phid
);
if
(
$draft
)
{
return
$draft
;
}
throw
$duplicate_exception
;
}
public
static
function
purgeDrafts
(
$object_phid
,
$viewer_phid
,
$version
)
{
$draft
=
new
PhabricatorVersionedDraft
();
$conn_w
=
$draft
->
establishConnection
(
'w'
);
queryfx
(
$conn_w
,
'DELETE FROM %T WHERE objectPHID = %s AND authorPHID = %s
AND version <= %d'
,
$draft
->
getTableName
(),
$object_phid
,
$viewer_phid
,
$version
);
}
}
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