<!doctype html>
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>sqlobject.sresults — SQLObject 3.7.0 documentation</title>
<link rel="stylesheet" href="../../_static/bizstyle.css" type="text/css" />
<link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
<script type="text/javascript" src="../../_static/documentation_options.js"></script>
<script type="text/javascript" src="../../_static/jquery.js"></script>
<script type="text/javascript" src="../../_static/underscore.js"></script>
<script type="text/javascript" src="../../_static/doctools.js"></script>
<script type="text/javascript" src="../../_static/bizstyle.js"></script>
<link rel="index" title="Index" href="../../genindex.html" />
<link rel="search" title="Search" href="../../search.html" />
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<!--[if lt IE 9]>
<script type="text/javascript" src="_static/css3-mediaqueries.js"></script>
<![endif]-->
</head><body>
<div class="related" role="navigation" aria-label="related navigation">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../../genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="../../py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="nav-item nav-item-0"><a href="../../index.html">SQLObject 3.7.0 documentation</a> »</li>
<li class="nav-item nav-item-1"><a href="../index.html" accesskey="U">Module code</a> »</li>
</ul>
</div>
<div class="sphinxsidebar" role="navigation" aria-label="main navigation">
<div class="sphinxsidebarwrapper">
<div id="searchbox" style="display: none" role="search">
<h3>Quick search</h3>
<div class="searchformwrapper">
<form class="search" action="../../search.html" method="get">
<input type="text" name="q" />
<input type="submit" value="Go" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
</div>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body" role="main">
<h1>Source code for sqlobject.sresults</h1><div class="highlight"><pre>
<span></span><span class="kn">from</span> <span class="nn">.</span> <span class="k">import</span> <span class="n">dbconnection</span>
<span class="kn">from</span> <span class="nn">.</span> <span class="k">import</span> <span class="n">sqlbuilder</span>
<span class="kn">from</span> <span class="nn">.compat</span> <span class="k">import</span> <span class="n">string_type</span>
<span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s1">'SelectResults'</span><span class="p">]</span>
<div class="viewcode-block" id="SelectResults"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults">[docs]</a><span class="k">class</span> <span class="nc">SelectResults</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="n">IterationClass</span> <span class="o">=</span> <span class="n">dbconnection</span><span class="o">.</span><span class="n">Iteration</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sourceClass</span><span class="p">,</span> <span class="n">clause</span><span class="p">,</span> <span class="n">clauseTables</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
<span class="o">**</span><span class="n">ops</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span> <span class="o">=</span> <span class="n">sourceClass</span>
<span class="k">if</span> <span class="n">clause</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">clause</span><span class="p">,</span> <span class="nb">str</span><span class="p">)</span> <span class="ow">and</span> <span class="n">clause</span> <span class="o">==</span> <span class="s1">'all'</span><span class="p">:</span>
<span class="n">clause</span> <span class="o">=</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">SQLTrueClause</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">clause</span><span class="p">,</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">SQLExpression</span><span class="p">):</span>
<span class="n">clause</span> <span class="o">=</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">SQLConstant</span><span class="p">(</span><span class="n">clause</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">clause</span> <span class="o">=</span> <span class="n">clause</span>
<span class="bp">self</span><span class="o">.</span><span class="n">ops</span> <span class="o">=</span> <span class="n">ops</span>
<span class="k">if</span> <span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'orderBy'</span><span class="p">,</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">NoDefault</span><span class="p">)</span> <span class="ow">is</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">NoDefault</span><span class="p">:</span>
<span class="n">ops</span><span class="p">[</span><span class="s1">'orderBy'</span><span class="p">]</span> <span class="o">=</span> <span class="n">sourceClass</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">defaultOrder</span>
<span class="n">orderBy</span> <span class="o">=</span> <span class="n">ops</span><span class="p">[</span><span class="s1">'orderBy'</span><span class="p">]</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">orderBy</span><span class="p">,</span> <span class="p">(</span><span class="nb">tuple</span><span class="p">,</span> <span class="nb">list</span><span class="p">)):</span>
<span class="n">orderBy</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">map</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_mungeOrderBy</span><span class="p">,</span> <span class="n">orderBy</span><span class="p">))</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">orderBy</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_mungeOrderBy</span><span class="p">(</span><span class="n">orderBy</span><span class="p">)</span>
<span class="n">ops</span><span class="p">[</span><span class="s1">'dbOrderBy'</span><span class="p">]</span> <span class="o">=</span> <span class="n">orderBy</span>
<span class="k">if</span> <span class="s1">'connection'</span> <span class="ow">in</span> <span class="n">ops</span> <span class="ow">and</span> <span class="n">ops</span><span class="p">[</span><span class="s1">'connection'</span><span class="p">]</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">del</span> <span class="n">ops</span><span class="p">[</span><span class="s1">'connection'</span><span class="p">]</span>
<span class="k">if</span> <span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'limit'</span><span class="p">,</span> <span class="kc">None</span><span class="p">):</span>
<span class="k">assert</span> <span class="ow">not</span> <span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'start'</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'end'</span><span class="p">,</span> <span class="kc">None</span><span class="p">),</span> \
<span class="s2">"'limit' cannot be used with 'start' or 'end'"</span>
<span class="n">ops</span><span class="p">[</span><span class="s2">"start"</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">ops</span><span class="p">[</span><span class="s2">"end"</span><span class="p">]</span> <span class="o">=</span> <span class="n">ops</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="s2">"limit"</span><span class="p">)</span>
<span class="n">tablesSet</span> <span class="o">=</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">tablesUsedSet</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">clause</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_getConnection</span><span class="p">()</span><span class="o">.</span><span class="n">dbName</span><span class="p">)</span>
<span class="k">if</span> <span class="n">clauseTables</span><span class="p">:</span>
<span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">clauseTables</span><span class="p">:</span>
<span class="n">tablesSet</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">table</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">clauseTables</span> <span class="o">=</span> <span class="n">clauseTables</span>
<span class="c1"># Explicitly post-adding-in sqlmeta.table,</span>
<span class="c1"># sqlbuilder.Select will handle sqlrepr'ing and dupes.</span>
<span class="bp">self</span><span class="o">.</span><span class="n">tables</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">tablesSet</span><span class="p">)</span> <span class="o">+</span> <span class="p">[</span><span class="n">sourceClass</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">table</span><span class="p">]</span>
<div class="viewcode-block" id="SelectResults.queryForSelect"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.queryForSelect">[docs]</a> <span class="k">def</span> <span class="nf">queryForSelect</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">columns</span> <span class="o">=</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="n">q</span><span class="o">.</span><span class="n">id</span><span class="p">]</span> <span class="o">+</span> \
<span class="p">[</span><span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="n">q</span><span class="p">,</span> <span class="n">x</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
<span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">columnList</span><span class="p">]</span>
<span class="n">query</span> <span class="o">=</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">Select</span><span class="p">(</span><span class="n">columns</span><span class="p">,</span>
<span class="n">where</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">clause</span><span class="p">,</span>
<span class="n">join</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span>
<span class="s1">'join'</span><span class="p">,</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">NoDefault</span><span class="p">),</span>
<span class="n">distinct</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'distinct'</span><span class="p">,</span> <span class="kc">False</span><span class="p">),</span>
<span class="n">lazyColumns</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span>
<span class="s1">'lazyColumns'</span><span class="p">,</span> <span class="kc">False</span><span class="p">),</span>
<span class="n">start</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'start'</span><span class="p">,</span> <span class="mi">0</span><span class="p">),</span>
<span class="n">end</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'end'</span><span class="p">,</span> <span class="kc">None</span><span class="p">),</span>
<span class="n">orderBy</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span>
<span class="s1">'dbOrderBy'</span><span class="p">,</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">NoDefault</span><span class="p">),</span>
<span class="nb">reversed</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'reversed'</span><span class="p">,</span> <span class="kc">False</span><span class="p">),</span>
<span class="n">staticTables</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">tables</span><span class="p">,</span>
<span class="n">forUpdate</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'forUpdate'</span><span class="p">,</span> <span class="kc">False</span><span class="p">))</span>
<span class="k">return</span> <span class="n">query</span>
</div>
<span class="k">def</span> <span class="nf">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="s2">"<</span><span class="si">%s</span><span class="s2"> at </span><span class="si">%x</span><span class="s2">>"</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="vm">__class__</span><span class="o">.</span><span class="vm">__name__</span><span class="p">,</span> <span class="nb">id</span><span class="p">(</span><span class="bp">self</span><span class="p">))</span>
<span class="k">def</span> <span class="nf">_getConnection</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'connection'</span><span class="p">)</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="n">_connection</span>
<span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">conn</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_getConnection</span><span class="p">()</span>
<span class="k">return</span> <span class="n">conn</span><span class="o">.</span><span class="n">queryForSelect</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_mungeOrderBy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">orderBy</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">orderBy</span><span class="p">,</span> <span class="n">string_type</span><span class="p">)</span> <span class="ow">and</span> <span class="n">orderBy</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">'-'</span><span class="p">):</span>
<span class="n">orderBy</span> <span class="o">=</span> <span class="n">orderBy</span><span class="p">[</span><span class="mi">1</span><span class="p">:]</span>
<span class="n">desc</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">desc</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">orderBy</span><span class="p">,</span> <span class="n">string_type</span><span class="p">):</span>
<span class="k">if</span> <span class="n">orderBy</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span>
<span class="n">val</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="n">q</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">columns</span><span class="p">[</span><span class="n">orderBy</span><span class="p">]</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
<span class="k">if</span> <span class="n">desc</span><span class="p">:</span>
<span class="k">return</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">DESC</span><span class="p">(</span><span class="n">val</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="n">val</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">orderBy</span> <span class="o">=</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">SQLConstant</span><span class="p">(</span><span class="n">orderBy</span><span class="p">)</span>
<span class="k">if</span> <span class="n">desc</span><span class="p">:</span>
<span class="k">return</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">DESC</span><span class="p">(</span><span class="n">orderBy</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="n">orderBy</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="n">orderBy</span>
<div class="viewcode-block" id="SelectResults.clone"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.clone">[docs]</a> <span class="k">def</span> <span class="nf">clone</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">newOps</span><span class="p">):</span>
<span class="n">ops</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
<span class="n">ops</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">newOps</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="vm">__class__</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">clause</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">clauseTables</span><span class="p">,</span> <span class="o">**</span><span class="n">ops</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="SelectResults.orderBy"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.orderBy">[docs]</a> <span class="k">def</span> <span class="nf">orderBy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">orderBy</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">clone</span><span class="p">(</span><span class="n">orderBy</span><span class="o">=</span><span class="n">orderBy</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="SelectResults.connection"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.connection">[docs]</a> <span class="k">def</span> <span class="nf">connection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">conn</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">clone</span><span class="p">(</span><span class="n">connection</span><span class="o">=</span><span class="n">conn</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="SelectResults.limit"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.limit">[docs]</a> <span class="k">def</span> <span class="nf">limit</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">limit</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="p">[:</span><span class="n">limit</span><span class="p">]</span>
</div>
<div class="viewcode-block" id="SelectResults.lazyColumns"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.lazyColumns">[docs]</a> <span class="k">def</span> <span class="nf">lazyColumns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">clone</span><span class="p">(</span><span class="n">lazyColumns</span><span class="o">=</span><span class="n">value</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="SelectResults.reversed"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.reversed">[docs]</a> <span class="k">def</span> <span class="nf">reversed</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">clone</span><span class="p">(</span><span class="nb">reversed</span><span class="o">=</span><span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'reversed'</span><span class="p">,</span> <span class="kc">False</span><span class="p">))</span>
</div>
<div class="viewcode-block" id="SelectResults.distinct"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.distinct">[docs]</a> <span class="k">def</span> <span class="nf">distinct</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">clone</span><span class="p">(</span><span class="n">distinct</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="SelectResults.newClause"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.newClause">[docs]</a> <span class="k">def</span> <span class="nf">newClause</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">new_clause</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="vm">__class__</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="p">,</span> <span class="n">new_clause</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">clauseTables</span><span class="p">,</span> <span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="SelectResults.filter"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.filter">[docs]</a> <span class="k">def</span> <span class="nf">filter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">filter_clause</span><span class="p">):</span>
<span class="k">if</span> <span class="n">filter_clause</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="c1"># None doesn't filter anything, it's just a no-op:</span>
<span class="k">return</span> <span class="bp">self</span>
<span class="n">clause</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">clause</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">clause</span><span class="p">,</span> <span class="n">string_type</span><span class="p">):</span>
<span class="n">clause</span> <span class="o">=</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">SQLConstant</span><span class="p">(</span><span class="s1">'(</span><span class="si">%s</span><span class="s1">)'</span> <span class="o">%</span> <span class="n">clause</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">newClause</span><span class="p">(</span><span class="n">sqlbuilder</span><span class="o">.</span><span class="n">AND</span><span class="p">(</span><span class="n">clause</span><span class="p">,</span> <span class="n">filter_clause</span><span class="p">))</span>
</div>
<span class="k">def</span> <span class="nf">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="nb">slice</span><span class="p">):</span>
<span class="k">assert</span> <span class="ow">not</span> <span class="n">value</span><span class="o">.</span><span class="n">step</span><span class="p">,</span> <span class="s2">"Slices do not support steps"</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">value</span><span class="o">.</span><span class="n">start</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">value</span><span class="o">.</span><span class="n">stop</span><span class="p">:</span>
<span class="c1"># No need to copy, I'm immutable</span>
<span class="k">return</span> <span class="bp">self</span>
<span class="c1"># Negative indexes aren't handled (and everything we</span>
<span class="c1"># don't handle ourselves we just create a list to</span>
<span class="c1"># handle)</span>
<span class="k">if</span> <span class="p">(</span><span class="n">value</span><span class="o">.</span><span class="n">start</span> <span class="ow">and</span> <span class="n">value</span><span class="o">.</span><span class="n">start</span> <span class="o"><</span> <span class="mi">0</span><span class="p">)</span> \
<span class="ow">or</span> <span class="p">(</span><span class="n">value</span><span class="o">.</span><span class="n">stop</span> <span class="ow">and</span> <span class="n">value</span><span class="o">.</span><span class="n">stop</span> <span class="o"><</span> <span class="mi">0</span><span class="p">):</span>
<span class="k">if</span> <span class="n">value</span><span class="o">.</span><span class="n">start</span><span class="p">:</span>
<span class="k">if</span> <span class="n">value</span><span class="o">.</span><span class="n">stop</span><span class="p">:</span>
<span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="p">)[</span><span class="n">value</span><span class="o">.</span><span class="n">start</span><span class="p">:</span><span class="n">value</span><span class="o">.</span><span class="n">stop</span><span class="p">]</span>
<span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="p">)[</span><span class="n">value</span><span class="o">.</span><span class="n">start</span><span class="p">:]</span>
<span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="p">)[:</span><span class="n">value</span><span class="o">.</span><span class="n">stop</span><span class="p">]</span>
<span class="k">if</span> <span class="n">value</span><span class="o">.</span><span class="n">start</span><span class="p">:</span>
<span class="k">assert</span> <span class="n">value</span><span class="o">.</span><span class="n">start</span> <span class="o">>=</span> <span class="mi">0</span>
<span class="n">start</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'start'</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="n">value</span><span class="o">.</span><span class="n">start</span>
<span class="k">if</span> <span class="n">value</span><span class="o">.</span><span class="n">stop</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">assert</span> <span class="n">value</span><span class="o">.</span><span class="n">stop</span> <span class="o">>=</span> <span class="mi">0</span>
<span class="k">if</span> <span class="n">value</span><span class="o">.</span><span class="n">stop</span> <span class="o"><</span> <span class="n">value</span><span class="o">.</span><span class="n">start</span><span class="p">:</span>
<span class="c1"># an empty result:</span>
<span class="n">end</span> <span class="o">=</span> <span class="n">start</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">end</span> <span class="o">=</span> <span class="n">value</span><span class="o">.</span><span class="n">stop</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'start'</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'end'</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> \
<span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="p">[</span><span class="s1">'end'</span><span class="p">]</span> <span class="o"><</span> <span class="n">end</span><span class="p">:</span>
<span class="c1"># truncated by previous slice:</span>
<span class="n">end</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="p">[</span><span class="s1">'end'</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">end</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'end'</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">start</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'start'</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="n">end</span> <span class="o">=</span> <span class="n">value</span><span class="o">.</span><span class="n">stop</span> <span class="o">+</span> <span class="n">start</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'end'</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> \
<span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="p">[</span><span class="s1">'end'</span><span class="p">]</span> <span class="o"><</span> <span class="n">end</span><span class="p">:</span>
<span class="n">end</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="p">[</span><span class="s1">'end'</span><span class="p">]</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">clone</span><span class="p">(</span><span class="n">start</span><span class="o">=</span><span class="n">start</span><span class="p">,</span> <span class="n">end</span><span class="o">=</span><span class="n">end</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">if</span> <span class="n">value</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="nb">iter</span><span class="p">(</span><span class="bp">self</span><span class="p">))[</span><span class="n">value</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">start</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'start'</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="n">value</span>
<span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">clone</span><span class="p">(</span><span class="n">start</span><span class="o">=</span><span class="n">start</span><span class="p">,</span> <span class="n">end</span><span class="o">=</span><span class="n">start</span> <span class="o">+</span> <span class="mi">1</span><span class="p">))[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">def</span> <span class="nf">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="c1"># @@: This could be optimized, using a simpler algorithm</span>
<span class="c1"># since we don't have to worry about garbage collection,</span>
<span class="c1"># etc., like we do with .lazyIter()</span>
<span class="k">return</span> <span class="nb">iter</span><span class="p">(</span><span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">lazyIter</span><span class="p">()))</span>
<div class="viewcode-block" id="SelectResults.lazyIter"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.lazyIter">[docs]</a> <span class="k">def</span> <span class="nf">lazyIter</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Returns an iterator that will lazily pull rows out of the</span>
<span class="sd"> database and return SQLObject instances</span>
<span class="sd"> """</span>
<span class="n">conn</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_getConnection</span><span class="p">()</span>
<span class="k">return</span> <span class="n">conn</span><span class="o">.</span><span class="n">iterSelect</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="SelectResults.accumulate"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.accumulate">[docs]</a> <span class="k">def</span> <span class="nf">accumulate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">expressions</span><span class="p">):</span>
<span class="sd">""" Use accumulate expression(s) to select result</span>
<span class="sd"> using another SQL select through current</span>
<span class="sd"> connection.</span>
<span class="sd"> Return the accumulate result</span>
<span class="sd"> """</span>
<span class="n">conn</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_getConnection</span><span class="p">()</span>
<span class="n">exprs</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">for</span> <span class="n">expr</span> <span class="ow">in</span> <span class="n">expressions</span><span class="p">:</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expr</span><span class="p">,</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">SQLExpression</span><span class="p">):</span>
<span class="n">expr</span> <span class="o">=</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">SQLConstant</span><span class="p">(</span><span class="n">expr</span><span class="p">)</span>
<span class="n">exprs</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">expr</span><span class="p">)</span>
<span class="k">return</span> <span class="n">conn</span><span class="o">.</span><span class="n">accumulateSelect</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">exprs</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="SelectResults.count"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.count">[docs]</a> <span class="k">def</span> <span class="nf">count</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">""" Counting elements of current select results """</span>
<span class="k">assert</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'start'</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'end'</span><span class="p">),</span> \
<span class="s2">"start/end/limit have no meaning with 'count'"</span>
<span class="k">assert</span> <span class="ow">not</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'distinct'</span><span class="p">)</span> <span class="ow">and</span>
<span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'start'</span><span class="p">)</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'end'</span><span class="p">))),</span> \
<span class="s2">"distinct-counting of sliced objects is not supported"</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'distinct'</span><span class="p">):</span>
<span class="c1"># Column must be specified, so we are using unique ID column.</span>
<span class="c1"># COUNT(DISTINCT column) is supported by MySQL and PostgreSQL,</span>
<span class="c1"># but not by SQLite. Perhaps more portable would be subquery:</span>
<span class="c1"># SELECT COUNT(*) FROM (SELECT DISTINCT id FROM table)</span>
<span class="n">count</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">accumulate</span><span class="p">(</span>
<span class="s1">'COUNT(DISTINCT </span><span class="si">%s</span><span class="s1">)'</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">_getConnection</span><span class="p">()</span><span class="o">.</span><span class="n">sqlrepr</span><span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="n">q</span><span class="o">.</span><span class="n">id</span><span class="p">))</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">count</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">accumulate</span><span class="p">(</span><span class="s1">'COUNT(*)'</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'start'</span><span class="p">):</span>
<span class="n">count</span> <span class="o">-=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="p">[</span><span class="s1">'start'</span><span class="p">]</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'end'</span><span class="p">):</span>
<span class="n">count</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="p">[</span><span class="s1">'end'</span><span class="p">]</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'start'</span><span class="p">,</span> <span class="mi">0</span><span class="p">),</span> <span class="n">count</span><span class="p">)</span>
<span class="k">return</span> <span class="n">count</span>
</div>
<div class="viewcode-block" id="SelectResults.accumulateMany"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.accumulateMany">[docs]</a> <span class="k">def</span> <span class="nf">accumulateMany</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">attributes</span><span class="p">):</span>
<span class="sd">""" Making the expressions for count/sum/min/max/avg</span>
<span class="sd"> of a given select result attributes.</span>
<span class="sd"> `attributes` must be a list/tuple of pairs (func_name, attribute);</span>
<span class="sd"> `attribute` can be a column name (like 'a_column')</span>
<span class="sd"> or a dot-q attribute (like Table.q.aColumn)</span>
<span class="sd"> """</span>
<span class="n">expressions</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">conn</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_getConnection</span><span class="p">()</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">ops</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'distinct'</span><span class="p">):</span>
<span class="n">distinct</span> <span class="o">=</span> <span class="s1">'DISTINCT '</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">distinct</span> <span class="o">=</span> <span class="s1">''</span>
<span class="k">for</span> <span class="n">func_name</span><span class="p">,</span> <span class="n">attribute</span> <span class="ow">in</span> <span class="n">attributes</span><span class="p">:</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">attribute</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="n">attribute</span> <span class="o">=</span> <span class="n">conn</span><span class="o">.</span><span class="n">sqlrepr</span><span class="p">(</span><span class="n">attribute</span><span class="p">)</span>
<span class="n">expression</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">(</span><span class="si">%s%s</span><span class="s1">)'</span> <span class="o">%</span> <span class="p">(</span><span class="n">func_name</span><span class="p">,</span> <span class="n">distinct</span><span class="p">,</span> <span class="n">attribute</span><span class="p">)</span>
<span class="n">expressions</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">accumulate</span><span class="p">(</span><span class="o">*</span><span class="n">expressions</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="SelectResults.accumulateOne"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.accumulateOne">[docs]</a> <span class="k">def</span> <span class="nf">accumulateOne</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">func_name</span><span class="p">,</span> <span class="n">attribute</span><span class="p">):</span>
<span class="sd">""" Making the sum/min/max/avg of a given select result attribute.</span>
<span class="sd"> `attribute` can be a column name (like 'a_column')</span>
<span class="sd"> or a dot-q attribute (like Table.q.aColumn)</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">accumulateMany</span><span class="p">((</span><span class="n">func_name</span><span class="p">,</span> <span class="n">attribute</span><span class="p">))</span>
</div>
<div class="viewcode-block" id="SelectResults.sum"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.sum">[docs]</a> <span class="k">def</span> <span class="nf">sum</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">attribute</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">accumulateOne</span><span class="p">(</span><span class="s2">"SUM"</span><span class="p">,</span> <span class="n">attribute</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="SelectResults.min"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.min">[docs]</a> <span class="k">def</span> <span class="nf">min</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">attribute</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">accumulateOne</span><span class="p">(</span><span class="s2">"MIN"</span><span class="p">,</span> <span class="n">attribute</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="SelectResults.avg"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.avg">[docs]</a> <span class="k">def</span> <span class="nf">avg</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">attribute</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">accumulateOne</span><span class="p">(</span><span class="s2">"AVG"</span><span class="p">,</span> <span class="n">attribute</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="SelectResults.max"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.max">[docs]</a> <span class="k">def</span> <span class="nf">max</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">attribute</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">accumulateOne</span><span class="p">(</span><span class="s2">"MAX"</span><span class="p">,</span> <span class="n">attribute</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="SelectResults.getOne"><a class="viewcode-back" href="../../api/sqlobject.sresults.html#sqlobject.main.SelectResults.getOne">[docs]</a> <span class="k">def</span> <span class="nf">getOne</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="n">sqlbuilder</span><span class="o">.</span><span class="n">NoDefault</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> If a query is expected to only return a single value,</span>
<span class="sd"> using ``.getOne()`` will return just that value.</span>
<span class="sd"> If not results are found, ``SQLObjectNotFound`` will be</span>
<span class="sd"> raised, unless you pass in a default value (like</span>
<span class="sd"> ``.getOne(None)``).</span>
<span class="sd"> If more than one result is returned,</span>
<span class="sd"> ``SQLObjectIntegrityError`` will be raised.</span>
<span class="sd"> """</span>
<span class="kn">from</span> <span class="nn">.</span> <span class="k">import</span> <span class="n">main</span>
<span class="n">results</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">results</span><span class="p">:</span>
<span class="k">if</span> <span class="n">default</span> <span class="ow">is</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">NoDefault</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">main</span><span class="o">.</span><span class="n">SQLObjectNotFound</span><span class="p">(</span>
<span class="s2">"No results matched the query for </span><span class="si">%s</span><span class="s2">"</span>
<span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="vm">__name__</span><span class="p">)</span>
<span class="k">return</span> <span class="n">default</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">results</span><span class="p">)</span> <span class="o">></span> <span class="mi">1</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">main</span><span class="o">.</span><span class="n">SQLObjectIntegrityError</span><span class="p">(</span>
<span class="s2">"More than one result returned from query: </span><span class="si">%s</span><span class="s2">"</span>
<span class="o">%</span> <span class="n">results</span><span class="p">)</span>
<span class="k">return</span> <span class="n">results</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
</div>
<span class="k">def</span> <span class="nf">throughTo</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">class</span> <span class="nc">_throughTo_getter</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">inst</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sresult</span> <span class="o">=</span> <span class="n">inst</span>
<span class="k">def</span> <span class="nf">__getattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">attr</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">sresult</span><span class="o">.</span><span class="n">_throughTo</span><span class="p">(</span><span class="n">attr</span><span class="p">)</span>
<span class="k">return</span> <span class="n">_throughTo_getter</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="n">throughTo</span> <span class="o">=</span> <span class="nb">property</span><span class="p">(</span><span class="n">throughTo</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_throughTo</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">attr</span><span class="p">):</span>
<span class="n">otherClass</span> <span class="o">=</span> <span class="kc">None</span>
<span class="n">orderBy</span> <span class="o">=</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">NoDefault</span>
<span class="n">ref</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span>
<span class="n">attr</span><span class="o">.</span><span class="n">endswith</span><span class="p">(</span><span class="s1">'ID'</span><span class="p">)</span> <span class="ow">and</span> <span class="n">attr</span> <span class="ow">or</span> <span class="n">attr</span> <span class="o">+</span> <span class="s1">'ID'</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">ref</span> <span class="ow">and</span> <span class="n">ref</span><span class="o">.</span><span class="n">foreignKey</span><span class="p">:</span>
<span class="n">otherClass</span><span class="p">,</span> <span class="n">clause</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_throughToFK</span><span class="p">(</span><span class="n">ref</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">join</span> <span class="o">=</span> <span class="p">[</span><span class="n">x</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">joins</span>
<span class="k">if</span> <span class="n">x</span><span class="o">.</span><span class="n">joinMethodName</span> <span class="o">==</span> <span class="n">attr</span><span class="p">]</span>
<span class="k">if</span> <span class="n">join</span><span class="p">:</span>
<span class="n">join</span> <span class="o">=</span> <span class="n">join</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="n">orderBy</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">orderBy</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">join</span><span class="p">,</span> <span class="s1">'otherColumn'</span><span class="p">):</span>
<span class="n">otherClass</span><span class="p">,</span> <span class="n">clause</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_throughToRelatedJoin</span><span class="p">(</span><span class="n">join</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">otherClass</span><span class="p">,</span> <span class="n">clause</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_throughToMultipleJoin</span><span class="p">(</span><span class="n">join</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">otherClass</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">AttributeError</span><span class="p">(</span>
<span class="s2">"throughTo argument (got </span><span class="si">%s</span><span class="s2">) should be "</span>
<span class="s2">"name of foreignKey or SQL*Join in </span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="n">attr</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="p">))</span>
<span class="k">return</span> <span class="n">otherClass</span><span class="o">.</span><span class="n">select</span><span class="p">(</span><span class="n">clause</span><span class="p">,</span>
<span class="n">orderBy</span><span class="o">=</span><span class="n">orderBy</span><span class="p">,</span>
<span class="n">connection</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_getConnection</span><span class="p">())</span>
<span class="k">def</span> <span class="nf">_throughToFK</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">col</span><span class="p">):</span>
<span class="n">otherClass</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="p">,</span> <span class="s2">"_SO_class_"</span> <span class="o">+</span> <span class="n">col</span><span class="o">.</span><span class="n">foreignKey</span><span class="p">)</span>
<span class="n">colName</span> <span class="o">=</span> <span class="n">col</span><span class="o">.</span><span class="n">name</span>
<span class="n">query</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">queryForSelect</span><span class="p">()</span><span class="o">.</span><span class="n">newItems</span><span class="p">([</span>
<span class="n">sqlbuilder</span><span class="o">.</span><span class="n">ColumnAS</span><span class="p">(</span><span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="n">q</span><span class="p">,</span> <span class="n">colName</span><span class="p">),</span> <span class="n">colName</span><span class="p">)</span>
<span class="p">])</span><span class="o">.</span><span class="n">orderBy</span><span class="p">(</span><span class="kc">None</span><span class="p">)</span><span class="o">.</span><span class="n">distinct</span><span class="p">()</span>
<span class="n">query</span> <span class="o">=</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">Alias</span><span class="p">(</span><span class="n">query</span><span class="p">,</span>
<span class="s2">"</span><span class="si">%s</span><span class="s2">_</span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="vm">__name__</span><span class="p">,</span>
<span class="n">col</span><span class="o">.</span><span class="n">name</span><span class="p">))</span>
<span class="k">return</span> <span class="n">otherClass</span><span class="p">,</span> <span class="n">otherClass</span><span class="o">.</span><span class="n">q</span><span class="o">.</span><span class="n">id</span> <span class="o">==</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">query</span><span class="o">.</span><span class="n">q</span><span class="p">,</span> <span class="n">colName</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_throughToMultipleJoin</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">join</span><span class="p">):</span>
<span class="n">otherClass</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">otherClass</span>
<span class="n">colName</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">soClass</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">style</span><span class="o">.</span>\
<span class="n">dbColumnToPythonAttr</span><span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">joinColumn</span><span class="p">)</span>
<span class="n">query</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">queryForSelect</span><span class="p">()</span><span class="o">.</span><span class="n">newItems</span><span class="p">(</span>
<span class="p">[</span><span class="n">sqlbuilder</span><span class="o">.</span><span class="n">ColumnAS</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="n">q</span><span class="o">.</span><span class="n">id</span><span class="p">,</span> <span class="s1">'id'</span><span class="p">)])</span><span class="o">.</span>\
<span class="n">orderBy</span><span class="p">(</span><span class="kc">None</span><span class="p">)</span><span class="o">.</span><span class="n">distinct</span><span class="p">()</span>
<span class="n">query</span> <span class="o">=</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">Alias</span><span class="p">(</span><span class="n">query</span><span class="p">,</span>
<span class="s2">"</span><span class="si">%s</span><span class="s2">_</span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="vm">__name__</span><span class="p">,</span>
<span class="n">join</span><span class="o">.</span><span class="n">joinMethodName</span><span class="p">))</span>
<span class="n">joinColumn</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">otherClass</span><span class="o">.</span><span class="n">q</span><span class="p">,</span> <span class="n">colName</span><span class="p">)</span>
<span class="k">return</span> <span class="n">otherClass</span><span class="p">,</span> <span class="n">joinColumn</span> <span class="o">==</span> <span class="n">query</span><span class="o">.</span><span class="n">q</span><span class="o">.</span><span class="n">id</span>
<span class="k">def</span> <span class="nf">_throughToRelatedJoin</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">join</span><span class="p">):</span>
<span class="n">otherClass</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">otherClass</span>
<span class="n">intTable</span> <span class="o">=</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">Table</span><span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">intermediateTable</span><span class="p">)</span>
<span class="n">colName</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">joinColumn</span>
<span class="n">query</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">queryForSelect</span><span class="p">()</span><span class="o">.</span><span class="n">newItems</span><span class="p">(</span>
<span class="p">[</span><span class="n">sqlbuilder</span><span class="o">.</span><span class="n">ColumnAS</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="n">q</span><span class="o">.</span><span class="n">id</span><span class="p">,</span> <span class="s1">'id'</span><span class="p">)])</span><span class="o">.</span>\
<span class="n">orderBy</span><span class="p">(</span><span class="kc">None</span><span class="p">)</span><span class="o">.</span><span class="n">distinct</span><span class="p">()</span>
<span class="n">query</span> <span class="o">=</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">Alias</span><span class="p">(</span><span class="n">query</span><span class="p">,</span>
<span class="s2">"</span><span class="si">%s</span><span class="s2">_</span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sourceClass</span><span class="o">.</span><span class="vm">__name__</span><span class="p">,</span>
<span class="n">join</span><span class="o">.</span><span class="n">joinMethodName</span><span class="p">))</span>
<span class="n">clause</span> <span class="o">=</span> <span class="n">sqlbuilder</span><span class="o">.</span><span class="n">AND</span><span class="p">(</span>
<span class="n">otherClass</span><span class="o">.</span><span class="n">q</span><span class="o">.</span><span class="n">id</span> <span class="o">==</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">intTable</span><span class="p">,</span> <span class="n">join</span><span class="o">.</span><span class="n">otherColumn</span><span class="p">),</span>
<span class="nb">getattr</span><span class="p">(</span><span class="n">intTable</span><span class="p">,</span> <span class="n">colName</span><span class="p">)</span> <span class="o">==</span> <span class="n">query</span><span class="o">.</span><span class="n">q</span><span class="o">.</span><span class="n">id</span><span class="p">)</span>
<span class="k">return</span> <span class="n">otherClass</span><span class="p">,</span> <span class="n">clause</span>
</pre></div></div>
</div>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related" role="navigation" aria-label="related navigation">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../../genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="../../py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="nav-item nav-item-0"><a href="../../index.html">SQLObject 3.7.0 documentation</a> »</li>
<li class="nav-item nav-item-1"><a href="../index.html" >Module code</a> »</li>
</ul>
</div>
<div class="footer" role="contentinfo">
© Copyright 2004-2018, Ian Bicking and contributors.
Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.7.4.
</div>
</body>
</html>
distrib
>
Mageia
>
7
>
armv7hl
>
media
>
core-release
>
by-pkgid
>
f1af5ac4c8d0f3f6ef0bca84cf516f3e
>
files
>
721
