[Sqlalchemy-commits] [1114] sqlalchemy/trunk/lib/sqlalchemy/mapping/mapper.py: added identity() meth
Brought to you by:
zzzeek
Menu
▾
▴
[Sqlalchemy-commits] [1114] sqlalchemy/trunk/lib/sqlalchemy/mapping/mapper.py: added identity() method to mapper, to help get the primary key of an instance.
|
From: <co...@sq...> - 2006-03-08 21:55:42
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head><style type="text/css"><!-- #msg dl { border: 1px #006 solid; background: #369; padding: 6px; color: #fff; } #msg dt { float: left; width: 6em; font-weight: bold; } #msg dt:after { content:':';} #msg dl, #msg dt, #msg ul, #msg li { font-family: verdana,arial,helvetica,sans-serif; font-size: 10pt; } #msg dl a { font-weight: bold} #msg dl a:link { color:#fc3; } #msg dl a:active { color:#ff0; } #msg dl a:visited { color:#cc6; } h3 { font-family: verdana,arial,helvetica,sans-serif; font-size: 10pt; font-weight: bold; } #msg pre { overflow: auto; background: #ffc; border: 1px #fc0 solid; padding: 6px; } #msg ul, pre { overflow: auto; } #patch { width: 100%; } #patch h4 {font-family: verdana,arial,helvetica,sans-serif;font-size:10pt;padding:8px;background:#369;color:#fff;margin:0;} #patch .propset h4, #patch .binary h4 {margin:0;} #patch pre {padding:0;line-height:1.2em;margin:0;} #patch .diff {width:100%;background:#eee;padding: 0 0 10px 0;overflow:auto;} #patch .propset .diff, #patch .binary .diff {padding:10px 0;} #patch span {display:block;padding:0 10px;} #patch .modfile, #patch .addfile, #patch .delfile, #patch .propset, #patch .binary, #patch .copfile {border:1px solid #ccc;margin:10px 0;} #patch ins {background:#dfd;text-decoration:none;display:block;padding:0 10px;} #patch del {background:#fdd;text-decoration:none;display:block;padding:0 10px;} #patch .lines, .info {color:#888;background:#fff;} --></style> <title>[1114] sqlalchemy/trunk/lib/sqlalchemy/mapping/mapper.py: added identity() method to mapper, to help get the primary key of an instance.</title> </head> <body> <div id="msg"> <dl> <dt>Revision</dt> <dd>1114</dd> <dt>Author</dt> <dd>zzzeek</dd> <dt>Date</dt> <dd>2006-03-08 15:55:33 -0600 (Wed, 08 Mar 2006)</dd> </dl> <h3>Log Message</h3> <pre>added identity() method to mapper, to help get the primary key of an instance.</pre> <h3>Modified Paths</h3> <ul> <li><a href="#sqlalchemytrunklibsqlalchemymappingmapperpy">sqlalchemy/trunk/lib/sqlalchemy/mapping/mapper.py</a></li> </ul> </div> <div id="patch"> <h3>Diff</h3> <a id="sqlalchemytrunklibsqlalchemymappingmapperpy"></a> <div class="modfile"><h4>Modified: sqlalchemy/trunk/lib/sqlalchemy/mapping/mapper.py (1113 => 1114)</h4> <pre class="diff"><span> <span class="info">--- sqlalchemy/trunk/lib/sqlalchemy/mapping/mapper.py 2006-03-08 21:39:53 UTC (rev 1113) +++ sqlalchemy/trunk/lib/sqlalchemy/mapping/mapper.py 2006-03-08 21:55:33 UTC (rev 1114) </span><span class="lines">@@ -306,11 +306,17 @@ </span><span class="cx"> </span><span class="cx"> </span><span class="cx"> def identity_key(self, *primary_key): </span><ins>+ """returns the instance key for the given identity value. this is a global tracking object used by the objectstore, and is usually available off a mapped object as instance._instance_key.""" </ins><span class="cx"> return objectstore.get_id_key(tuple(primary_key), self.class_) </span><span class="cx"> </span><span class="cx"> def instance_key(self, instance): </span><del>- return self.identity_key(*[self._getattrbycolumn(instance, column) for column in self.pks_by_table[self.table]]) </del><ins>+ """returns the instance key for the given instance. this is a global tracking object used by the objectstore, and is usually available off a mapped object as instance._instance_key.""" + return self.identity_key(*self.identity(instance)) </ins><span class="cx"> </span><ins>+ def identity(self, instance): + """returns the identity (list of primary key values) for the given instance. The list of values can be fed directly into the get() method as mapper.get(*key).""" + return [self._getattrbycolumn(instance, column) for column in self.pks_by_table[self.table]] + </ins><span class="cx"> def compile(self, whereclause = None, **options): </span><span class="cx"> """works like select, except returns the SQL statement object without </span><span class="cx"> compiling or executing it""" </span></span></pre> </div> </div> </body> </html> |
