[Sqlalchemy-commits] [1118] sqlalchemy/trunk/doc/build/content/datamapping.myt: fixed assocaition ex
Brought to you by:
zzzeek
Menu
▾
▴
[Sqlalchemy-commits] [1118] sqlalchemy/trunk/doc/build/content/datamapping.myt: fixed assocaition example
|
From: <co...@sq...> - 2006-03-09 15:54:53
|
<!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>[1118] sqlalchemy/trunk/doc/build/content/datamapping.myt: fixed assocaition example</title> </head> <body> <div id="msg"> <dl> <dt>Revision</dt> <dd>1118</dd> <dt>Author</dt> <dd>zzzeek</dd> <dt>Date</dt> <dd>2006-03-09 09:54:44 -0600 (Thu, 09 Mar 2006)</dd> </dl> <h3>Log Message</h3> <pre>fixed assocaition example</pre> <h3>Modified Paths</h3> <ul> <li><a href="#sqlalchemytrunkdocbuildcontentdatamappingmyt">sqlalchemy/trunk/doc/build/content/datamapping.myt</a></li> </ul> </div> <div id="patch"> <h3>Diff</h3> <a id="sqlalchemytrunkdocbuildcontentdatamappingmyt"></a> <div class="modfile"><h4>Modified: sqlalchemy/trunk/doc/build/content/datamapping.myt (1117 => 1118)</h4> <pre class="diff"><span> <span class="info">--- sqlalchemy/trunk/doc/build/content/datamapping.myt 2006-03-09 00:24:15 UTC (rev 1117) +++ sqlalchemy/trunk/doc/build/content/datamapping.myt 2006-03-09 15:54:44 UTC (rev 1118) </span><span class="lines">@@ -734,26 +734,25 @@ </span><span class="cx"> pass </span><span class="cx"> </span><span class="cx"> # mapper for KeywordAssociation </span><del>- KeywordAssociation.mapper = mapper(KeywordAssociation, itemkeywords) - - # mappers for Users, Keywords - User.mapper = mapper(User, users) - Keyword.mapper = mapper(Keyword, keywords) - - # define the mapper. when we load an article, we always want to get the keywords via - # eager loading. but the user who added each keyword, we usually dont need so specify - # lazy loading for that. - m = mapper(Article, articles, properties=dict( - keywords = relation(KeywordAssociation.mapper, lazy=False, association=Keyword, </del><ins>+ # specify "primary key" columns manually + KeywordAssociation.mapper = mapper(KeywordAssociation, itemkeywords, </ins><span class="cx"> primary_key = [itemkeywords.c.article_id, itemkeywords.c.keyword_id], </span><span class="cx"> properties={ </span><span class="cx"> 'keyword' : relation(Keyword, lazy = False), # uses primary Keyword mapper </span><span class="cx"> 'user' : relation(User, lazy = True) # uses primary User mapper </span><span class="cx"> } </span><del>- ) - ) </del><span class="cx"> ) </span><span class="cx"> </span><ins>+ # mappers for Users, Keywords + User.mapper = mapper(User, users) + Keyword.mapper = mapper(Keyword, keywords) + + # define the mapper. + m = mapper(Article, articles, properties={ + 'keywords':relation(KeywordAssociation.mapper, lazy=False, association=Keyword) + } + ) + </ins><span class="cx"> # bonus step - well, we do want to load the users in one shot, </span><span class="cx"> # so modify the mapper via an option. </span><span class="cx"> # this returns a new mapper with the option switched on. </span></span></pre> </div> </div> </body> </html> |
