[Sqlalchemy-commits] [1453] sqlalchemy/branches/schema/doc/build/content/datamapping.txt: dev
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[Sqlalchemy-commits] [1453] sqlalchemy/branches/schema/doc/build/content/datamapping.txt: dev
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From: <co...@sq...> - 2006-05-13 08:06:03
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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>[1453] sqlalchemy/branches/schema/doc/build/content/datamapping.txt: dev</title> </head> <body> <div id="msg"> <dl> <dt>Revision</dt> <dd>1453</dd> <dt>Author</dt> <dd>zzzeek</dd> <dt>Date</dt> <dd>2006-05-13 03:05:52 -0500 (Sat, 13 May 2006)</dd> </dl> <h3>Log Message</h3> <pre>dev</pre> <h3>Modified Paths</h3> <ul> <li><a href="#sqlalchemybranchesschemadocbuildcontentdatamappingtxt">sqlalchemy/branches/schema/doc/build/content/datamapping.txt</a></li> </ul> </div> <div id="patch"> <h3>Diff</h3> <a id="sqlalchemybranchesschemadocbuildcontentdatamappingtxt"></a> <div class="modfile"><h4>Modified: sqlalchemy/branches/schema/doc/build/content/datamapping.txt (1452 => 1453)</h4> <pre class="diff"><span> <span class="info">--- sqlalchemy/branches/schema/doc/build/content/datamapping.txt 2006-05-13 08:00:52 UTC (rev 1452) +++ sqlalchemy/branches/schema/doc/build/content/datamapping.txt 2006-05-13 08:05:52 UTC (rev 1453) </span><span class="lines">@@ -404,9 +404,9 @@ </span><span class="cx"> Address.c.street=='123 Green Street') </span><span class="cx"> ) </span><span class="cx"> </span><del>-All keyword arguments sent to `select_by` are used to create query criterion. This means that familiar `select` keyword options like `order_by` and `limit` are not directly available. To enable these options with `select_by`, you can try the `SelectResults` extension which offers methods off the result of a `select_by` such as "order_by" as well as array slicing functions that generate queries. Or you can use `select` in conjunction with `join_to`. </del><ins>+All keyword arguments sent to `select_by` are used to create query criterion. This means that familiar `select` keyword options like `order_by` and `limit` are not directly available. To enable these options with `select_by`, you can try the `SelectResults` extension which offers methods off the result of a `select` or `select_by` such as `order_by()` and array slicing functions that generate new queries. Or you can use `select` in conjunction with `join_to`. </ins><span class="cx"> </span><del>-The `join_to` method of Query is a component of the `select_by` operation, and is given a keyname in order to return a "join path" from the Query's mapper to the mapper which contains the property of the given name: </del><ins>+The `join_to` method of `Query` is a component of the `select_by` operation, and is given a keyname in order to return a "join path" from the Query's mapper to the mapper which contains the property of the given name: </ins><span class="cx"> </span><span class="cx"> {python} </span><span class="cx"> >>> q = session.query(User) </span><span class="lines">@@ -424,6 +424,7 @@ </span><span class="cx"> </span><span class="cx"> Expressions produced by `join_to` and `join_via` can be used with `select` to create query criterion: </span><span class="cx"> </span><ins>+ {python} </ins><span class="cx"> >>> l = q.select( </span><span class="cx"> (addresses_table.c.street=='some address') & </span><span class="cx"> (items_table.c.item_name=='item #4') & </span></span></pre> </div> </div> </body> </html> |
