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<div class="highlight" style="background: #f8f8f8"><pre style="line-height: 125%"><div id="lc1"><span style="color: #008000; font-weight: bold">def</span> <span style="color: #0000FF">load_generic_related</span>(qs, <span style="color: #666666">*</span>args):
</div><div id="lc2">    <span style="color: #BA2121; font-style: italic">&quot;&quot;&quot;</span>
</div><div id="lc3"><span style="color: #BA2121; font-style: italic">    Do in 1 + M(number of content types) quries the loading</span>
</div><div id="lc4"><span style="color: #BA2121; font-style: italic">    of related object which linked via GenericForeignKey</span>
</div><div id="lc5"><span style="color: #BA2121; font-style: italic">    &quot;&quot;&quot;</span>
</div><div id="lc6">
</div><div id="lc7">    items <span style="color: #666666">=</span> qs<span style="color: #666666">.</span>select_related(<span style="color: #BA2121">&#39;content_type&#39;</span>)
</div><div id="lc8">
</div><div id="lc9">    model_map <span style="color: #666666">=</span> {}
</div><div id="lc10">    item_map <span style="color: #666666">=</span> {}
</div><div id="lc11">
</div><div id="lc12">    <span style="color: #008000; font-weight: bold">for</span> item <span style="color: #AA22FF; font-weight: bold">in</span> items:
</div><div id="lc13">        model_map<span style="color: #666666">.</span>setdefault(item<span style="color: #666666">.</span>content_type, {})\
</div><div id="lc14">            <span style="color: #666666">.</span>setdefault(item<span style="color: #666666">.</span>object_id, [])<span style="color: #666666">.</span>append(item<span style="color: #666666">.</span>id)
</div><div id="lc15">        item_map[item<span style="color: #666666">.</span>id] <span style="color: #666666">=</span> item
</div><div id="lc16">
</div><div id="lc17">    <span style="color: #008000; font-weight: bold">for</span> ctype, ids <span style="color: #AA22FF; font-weight: bold">in</span> model_map<span style="color: #666666">.</span>items():
</div><div id="lc18">        cobjects <span style="color: #666666">=</span> ctype<span style="color: #666666">.</span>model_class()<span style="color: #666666">.</span>objects<span style="color: #666666">.</span>select_related(<span style="color: #666666">*</span>args)\
</div><div id="lc19">            <span style="color: #666666">.</span>filter(id__in<span style="color: #666666">=</span>ids<span style="color: #666666">.</span>keys())
</div><div id="lc20">        <span style="color: #008000; font-weight: bold">for</span> obj <span style="color: #AA22FF; font-weight: bold">in</span> cobjects:
</div><div id="lc21">            <span style="color: #008000; font-weight: bold">for</span> <span style="color: #008000">id</span> <span style="color: #AA22FF; font-weight: bold">in</span> ids[obj<span style="color: #666666">.</span>id]:
</div><div id="lc22">                item_map[<span style="color: #008000">id</span>]<span style="color: #666666">.</span>content_object <span style="color: #666666">=</span> obj
</div><div id="lc23">
</div><div id="lc24">    <span style="color: #008000; font-weight: bold">return</span> items
</div></pre></div>
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[color=#008000][b]def[/b][/color] [color=#0000FF]load_generic_related[/color](qs, [color=#666666]*[/color]args):
    [color=#BA2121][i]"""
    Do in 1 + M(number of content types) quries the loading
    of related object which linked via GenericForeignKey
    """[/i][/color]

items [color=#666666]=[/color] qs[color=#666666].[/color]select_related([color=#BA2121]'content_type'[/color])

model_map [color=#666666]=[/color] {}
    item_map [color=#666666]=[/color] {}

[color=#008000][b]for[/b][/color] item [color=#AA22FF][b]in[/b][/color] items:
        model_map[color=#666666].[/color]setdefault(item[color=#666666].[/color]content_type, {})\
            [color=#666666].[/color]setdefault(item[color=#666666].[/color]object_id, [])[color=#666666].[/color]append(item[color=#666666].[/color]id)
        item_map[item[color=#666666].[/color]id] [color=#666666]=[/color] item

[color=#008000][b]for[/b][/color] ctype, ids [color=#AA22FF][b]in[/b][/color] model_map[color=#666666].[/color]items():
        cobjects [color=#666666]=[/color] ctype[color=#666666].[/color]model_class()[color=#666666].[/color]objects[color=#666666].[/color]select_related([color=#666666]*[/color]args)\
            [color=#666666].[/color]filter(id__in[color=#666666]=[/color]ids[color=#666666].[/color]keys())
        [color=#008000][b]for[/b][/color] obj [color=#AA22FF][b]in[/b][/color] cobjects:
            [color=#008000][b]for[/b][/color] [color=#008000]id[/color] [color=#AA22FF][b]in[/b][/color] ids[obj[color=#666666].[/color]id]:
                item_map[[color=#008000]id[/color]][color=#666666].[/color]content_object [color=#666666]=[/color] obj

[color=#008000][b]return[/b][/color] items

--------------------------------------
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<div class="highlight"><pre><div id="lc1"><span class="k">def</span> <span class="nf">load_generic_related</span><span class="p">(</span><span class="n">qs</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">):</span>
</div><div id="lc2">    <span class="sd">&quot;&quot;&quot;</span>
</div><div id="lc3"><span class="sd">    Do in 1 + M(number of content types) quries the loading</span>
</div><div id="lc4"><span class="sd">    of related object which linked via GenericForeignKey</span>
</div><div id="lc5"><span class="sd">    &quot;&quot;&quot;</span>
</div><div id="lc6">
</div><div id="lc7">    <span class="n">items</span> <span class="o">=</span> <span class="n">qs</span><span class="o">.</span><span class="n">select_related</span><span class="p">(</span><span class="s">&#39;content_type&#39;</span><span class="p">)</span>
</div><div id="lc8">
</div><div id="lc9">    <span class="n">model_map</span> <span class="o">=</span> <span class="p">{}</span>
</div><div id="lc10">    <span class="n">item_map</span> <span class="o">=</span> <span class="p">{}</span>
</div><div id="lc11">
</div><div id="lc12">    <span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">items</span><span class="p">:</span>
</div><div id="lc13">        <span class="n">model_map</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">item</span><span class="o">.</span><span class="n">content_type</span><span class="p">,</span> <span class="p">{})</span>\
</div><div id="lc14">            <span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">item</span><span class="o">.</span><span class="n">object_id</span><span class="p">,</span> <span class="p">[])</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">item</span><span class="o">.</span><span class="n">id</span><span class="p">)</span>
</div><div id="lc15">        <span class="n">item_map</span><span class="p">[</span><span class="n">item</span><span class="o">.</span><span class="n">id</span><span class="p">]</span> <span class="o">=</span> <span class="n">item</span>
</div><div id="lc16">
</div><div id="lc17">    <span class="k">for</span> <span class="n">ctype</span><span class="p">,</span> <span class="n">ids</span> <span class="ow">in</span> <span class="n">model_map</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
</div><div id="lc18">        <span class="n">cobjects</span> <span class="o">=</span> <span class="n">ctype</span><span class="o">.</span><span class="n">model_class</span><span class="p">()</span><span class="o">.</span><span class="n">objects</span><span class="o">.</span><span class="n">select_related</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">)</span>\
</div><div id="lc19">            <span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="n">id__in</span><span class="o">=</span><span class="n">ids</span><span class="o">.</span><span class="n">keys</span><span class="p">())</span>
</div><div id="lc20">        <span class="k">for</span> <span class="n">obj</span> <span class="ow">in</span> <span class="n">cobjects</span><span class="p">:</span>
</div><div id="lc21">            <span class="k">for</span> <span class="nb">id</span> <span class="ow">in</span> <span class="n">ids</span><span class="p">[</span><span class="n">obj</span><span class="o">.</span><span class="n">id</span><span class="p">]:</span>
</div><div id="lc22">                <span class="n">item_map</span><span class="p">[</span><span class="nb">id</span><span class="p">]</span><span class="o">.</span><span class="n">content_object</span> <span class="o">=</span> <span class="n">obj</span>
</div><div id="lc23">
</div><div id="lc24">    <span class="k">return</span> <span class="n">items</span>
</div></pre></div>
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<blockquote><code><font color="#008000"><strong>def</strong></font>&nbsp;<font color="#0000FF">load_generic_related</font>(qs,&nbsp;<font color="#666666">*</font>args):
&nbsp;&nbsp;&nbsp;&nbsp;<font color="#BA2121"><em>&quot;&quot;&quot;
&nbsp;&nbsp;&nbsp;&nbsp;Do&nbsp;in&nbsp;1&nbsp;+&nbsp;M(number&nbsp;of&nbsp;content&nbsp;types)&nbsp;quries&nbsp;the&nbsp;loading
&nbsp;&nbsp;&nbsp;&nbsp;of&nbsp;related&nbsp;object&nbsp;which&nbsp;linked&nbsp;via&nbsp;GenericForeignKey
&nbsp;&nbsp;&nbsp;&nbsp;&quot;&quot;&quot;</em></font>

&nbsp;&nbsp;&nbsp;&nbsp;items&nbsp;<font color="#666666">=</font>&nbsp;qs<font color="#666666">.</font>select_related(<font color="#BA2121">&#39;content_type&#39;</font>)

&nbsp;&nbsp;&nbsp;&nbsp;model_map&nbsp;<font color="#666666">=</font>&nbsp;{}
&nbsp;&nbsp;&nbsp;&nbsp;item_map&nbsp;<font color="#666666">=</font>&nbsp;{}

&nbsp;&nbsp;&nbsp;&nbsp;<font color="#008000"><strong>for</strong></font>&nbsp;item&nbsp;<font color="#AA22FF"><strong>in</strong></font>&nbsp;items:
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;model_map<font color="#666666">.</font>setdefault(item<font color="#666666">.</font>content_type,&nbsp;{})\
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font color="#666666">.</font>setdefault(item<font color="#666666">.</font>object_id,&nbsp;[])<font color="#666666">.</font>append(item<font color="#666666">.</font>id)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;item_map[item<font color="#666666">.</font>id]&nbsp;<font color="#666666">=</font>&nbsp;item

&nbsp;&nbsp;&nbsp;&nbsp;<font color="#008000"><strong>for</strong></font>&nbsp;ctype,&nbsp;ids&nbsp;<font color="#AA22FF"><strong>in</strong></font>&nbsp;model_map<font color="#666666">.</font>items():
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cobjects&nbsp;<font color="#666666">=</font>&nbsp;ctype<font color="#666666">.</font>model_class()<font color="#666666">.</font>objects<font color="#666666">.</font>select_related(<font color="#666666">*</font>args)\
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font color="#666666">.</font>filter(id__in<font color="#666666">=</font>ids<font color="#666666">.</font>keys())
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font color="#008000"><strong>for</strong></font>&nbsp;obj&nbsp;<font color="#AA22FF"><strong>in</strong></font>&nbsp;cobjects:
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font color="#008000"><strong>for</strong></font>&nbsp;<font color="#008000">id</font>&nbsp;<font color="#AA22FF"><strong>in</strong></font>&nbsp;ids[obj<font color="#666666">.</font>id]:
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;item_map[<font color="#008000">id</font>]<font color="#666666">.</font>content_object&nbsp;<font color="#666666">=</font>&nbsp;obj

&nbsp;&nbsp;&nbsp;&nbsp;<font color="#008000"><strong>return</strong></font>&nbsp;items
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