[Sqlalchemy-commits] [1192] sqlalchemy/trunk/lib/sqlalchemy/attributes.py: added overrideable manage
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[Sqlalchemy-commits] [1192] sqlalchemy/trunk/lib/sqlalchemy/attributes.py: added overrideable managed_attribute_dict() function which can be changed
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From: <co...@sq...> - 2006-03-24 23:06:23
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<!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>[1192] sqlalchemy/trunk/lib/sqlalchemy/attributes.py: added overrideable managed_attribute_dict() function which can be changed</title> </head> <body> <div id="msg"> <dl> <dt>Revision</dt> <dd>1192</dd> <dt>Author</dt> <dd>zzzeek</dd> <dt>Date</dt> <dd>2006-03-24 17:06:07 -0600 (Fri, 24 Mar 2006)</dd> </dl> <h3>Log Message</h3> <pre>added overrideable managed_attribute_dict() function which can be changed to eliminate circular references on objects</pre> <h3>Modified Paths</h3> <ul> <li><a href="#sqlalchemytrunklibsqlalchemyattributespy">sqlalchemy/trunk/lib/sqlalchemy/attributes.py</a></li> </ul> </div> <div id="patch"> <h3>Diff</h3> <a id="sqlalchemytrunklibsqlalchemyattributespy"></a> <div class="modfile"><h4>Modified: sqlalchemy/trunk/lib/sqlalchemy/attributes.py (1191 => 1192)</h4> <pre class="diff"><span> <span class="info">--- sqlalchemy/trunk/lib/sqlalchemy/attributes.py 2006-03-24 06:28:27 UTC (rev 1191) +++ sqlalchemy/trunk/lib/sqlalchemy/attributes.py 2006-03-24 23:06:07 UTC (rev 1192) </span><span class="lines">@@ -28,6 +28,7 @@ </span><span class="cx"> """ </span><span class="cx"> </span><span class="cx"> import util </span><ins>+import weakref </ins><span class="cx"> from exceptions import * </span><span class="cx"> </span><span class="cx"> class SmartProperty(object): </span><span class="lines">@@ -351,7 +352,7 @@ </span><span class="cx"> def init_attr(self, obj): </span><span class="cx"> """sets up the _managed_attributes dictionary on an object. this happens anyway regardless </span><span class="cx"> of this method being called, but saves on KeyErrors being thrown in get_history().""" </span><del>- d = {} </del><ins>+ d = managed_attribute_dict() </ins><span class="cx"> obj.__dict__['_managed_attributes'] = d </span><span class="cx"> cls_managed = self.class_managed(obj.__class__) </span><span class="cx"> for value in cls_managed.values(): </span><span class="lines">@@ -376,7 +377,7 @@ </span><span class="cx"> trigger = obj.__dict__.pop('_managed_trigger', None) </span><span class="cx"> if trigger: </span><span class="cx"> trigger() </span><del>- attr = {} </del><ins>+ attr = managed_attribute_dict() </ins><span class="cx"> obj.__dict__['_managed_attributes'] = attr </span><span class="cx"> return attr </span><span class="cx"> </span><span class="lines">@@ -458,3 +459,9 @@ </span><span class="cx"> self.class_managed(class_)[key] = createprop </span><span class="cx"> setattr(class_, key, self.create_prop(class_, key, uselist)) </span><span class="cx"> </span><ins>+# make this function return a weakref.WeakValueDictionary to avoid +# creating circular references in objects +def managed_attribute_dict(): + return {} +# return weakref.WeakValueDictionary() + </ins></span></pre> </div> </div> </body> </html> |
