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docs/1.0-dev/_modules/django/db/models/query.html
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@ -46,29 +46,29 @@
<span class="kn">import</span> <span class="nn">copy</span>
<span class="kn">import</span> <span class="nn">operator</span>
<span class="kn">import</span> <span class="nn">warnings</span>
<span class="kn">from</span> <span class="nn">collections</span> <span class="k">import</span> <span class="n">OrderedDict</span><span class="p">,</span> <span class="n">namedtuple</span>
<span class="kn">from</span> <span class="nn">functools</span> <span class="k">import</span> <span class="n">lru_cache</span>
<span class="kn">from</span> <span class="nn">itertools</span> <span class="k">import</span> <span class="n">chain</span>
<span class="kn">from</span> <span class="nn">collections</span> <span class="kn">import</span> <span class="n">OrderedDict</span><span class="p">,</span> <span class="n">namedtuple</span>
<span class="kn">from</span> <span class="nn">functools</span> <span class="kn">import</span> <span class="n">lru_cache</span>
<span class="kn">from</span> <span class="nn">itertools</span> <span class="kn">import</span> <span class="n">chain</span>
<span class="kn">from</span> <span class="nn">django.conf</span> <span class="k">import</span> <span class="n">settings</span>
<span class="kn">from</span> <span class="nn">django.core</span> <span class="k">import</span> <span class="n">exceptions</span>
<span class="kn">from</span> <span class="nn">django.db</span> <span class="k">import</span> <span class="p">(</span>
<span class="kn">from</span> <span class="nn">django.conf</span> <span class="kn">import</span> <span class="n">settings</span>
<span class="kn">from</span> <span class="nn">django.core</span> <span class="kn">import</span> <span class="n">exceptions</span>
<span class="kn">from</span> <span class="nn">django.db</span> <span class="kn">import</span> <span class="p">(</span>
<span class="n">DJANGO_VERSION_PICKLE_KEY</span><span class="p">,</span> <span class="n">IntegrityError</span><span class="p">,</span> <span class="n">connections</span><span class="p">,</span> <span class="n">router</span><span class="p">,</span>
<span class="n">transaction</span><span class="p">,</span>
<span class="p">)</span>
<span class="kn">from</span> <span class="nn">django.db.models</span> <span class="k">import</span> <span class="n">DateField</span><span class="p">,</span> <span class="n">DateTimeField</span><span class="p">,</span> <span class="n">sql</span>
<span class="kn">from</span> <span class="nn">django.db.models.constants</span> <span class="k">import</span> <span class="n">LOOKUP_SEP</span>
<span class="kn">from</span> <span class="nn">django.db.models.deletion</span> <span class="k">import</span> <span class="n">Collector</span>
<span class="kn">from</span> <span class="nn">django.db.models.expressions</span> <span class="k">import</span> <span class="n">Case</span><span class="p">,</span> <span class="n">Expression</span><span class="p">,</span> <span class="n">F</span><span class="p">,</span> <span class="n">Value</span><span class="p">,</span> <span class="n">When</span>
<span class="kn">from</span> <span class="nn">django.db.models.fields</span> <span class="k">import</span> <span class="n">AutoField</span>
<span class="kn">from</span> <span class="nn">django.db.models.functions</span> <span class="k">import</span> <span class="n">Cast</span><span class="p">,</span> <span class="n">Trunc</span>
<span class="kn">from</span> <span class="nn">django.db.models.query_utils</span> <span class="k">import</span> <span class="n">FilteredRelation</span><span class="p">,</span> <span class="n">InvalidQuery</span><span class="p">,</span> <span class="n">Q</span>
<span class="kn">from</span> <span class="nn">django.db.models.sql.constants</span> <span class="k">import</span> <span class="n">CURSOR</span><span class="p">,</span> <span class="n">GET_ITERATOR_CHUNK_SIZE</span>
<span class="kn">from</span> <span class="nn">django.db.utils</span> <span class="k">import</span> <span class="n">NotSupportedError</span>
<span class="kn">from</span> <span class="nn">django.utils</span> <span class="k">import</span> <span class="n">timezone</span>
<span class="kn">from</span> <span class="nn">django.utils.deprecation</span> <span class="k">import</span> <span class="n">RemovedInDjango30Warning</span>
<span class="kn">from</span> <span class="nn">django.utils.functional</span> <span class="k">import</span> <span class="n">cached_property</span><span class="p">,</span> <span class="n">partition</span>
<span class="kn">from</span> <span class="nn">django.utils.version</span> <span class="k">import</span> <span class="n">get_version</span>
<span class="kn">from</span> <span class="nn">django.db.models</span> <span class="kn">import</span> <span class="n">DateField</span><span class="p">,</span> <span class="n">DateTimeField</span><span class="p">,</span> <span class="n">sql</span>
<span class="kn">from</span> <span class="nn">django.db.models.constants</span> <span class="kn">import</span> <span class="n">LOOKUP_SEP</span>
<span class="kn">from</span> <span class="nn">django.db.models.deletion</span> <span class="kn">import</span> <span class="n">Collector</span>
<span class="kn">from</span> <span class="nn">django.db.models.expressions</span> <span class="kn">import</span> <span class="n">Case</span><span class="p">,</span> <span class="n">Expression</span><span class="p">,</span> <span class="n">F</span><span class="p">,</span> <span class="n">Value</span><span class="p">,</span> <span class="n">When</span>
<span class="kn">from</span> <span class="nn">django.db.models.fields</span> <span class="kn">import</span> <span class="n">AutoField</span>
<span class="kn">from</span> <span class="nn">django.db.models.functions</span> <span class="kn">import</span> <span class="n">Cast</span><span class="p">,</span> <span class="n">Trunc</span>
<span class="kn">from</span> <span class="nn">django.db.models.query_utils</span> <span class="kn">import</span> <span class="n">FilteredRelation</span><span class="p">,</span> <span class="n">InvalidQuery</span><span class="p">,</span> <span class="n">Q</span>
<span class="kn">from</span> <span class="nn">django.db.models.sql.constants</span> <span class="kn">import</span> <span class="n">CURSOR</span><span class="p">,</span> <span class="n">GET_ITERATOR_CHUNK_SIZE</span>
<span class="kn">from</span> <span class="nn">django.db.utils</span> <span class="kn">import</span> <span class="n">NotSupportedError</span>
<span class="kn">from</span> <span class="nn">django.utils</span> <span class="kn">import</span> <span class="n">timezone</span>
<span class="kn">from</span> <span class="nn">django.utils.deprecation</span> <span class="kn">import</span> <span class="n">RemovedInDjango30Warning</span>
<span class="kn">from</span> <span class="nn">django.utils.functional</span> <span class="kn">import</span> <span class="n">cached_property</span><span class="p">,</span> <span class="n">partition</span>
<span class="kn">from</span> <span class="nn">django.utils.version</span> <span class="kn">import</span> <span class="n">get_version</span>
<span class="c1"># The maximum number of items to display in a QuerySet.__repr__</span>
<span class="n">REPR_OUTPUT_SIZE</span> <span class="o">=</span> <span class="mi">20</span>
@ -78,7 +78,7 @@
<span class="k">class</span> <span class="nc">BaseIterable</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">queryset</span><span class="p">,</span> <span class="n">chunked_fetch</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">chunk_size</span><span class="o">=</span><span class="n">GET_ITERATOR_CHUNK_SIZE</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">queryset</span><span class="p">,</span> <span class="n">chunked_fetch</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">chunk_size</span><span class="o">=</span><span class="n">GET_ITERATOR_CHUNK_SIZE</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">queryset</span> <span class="o">=</span> <span class="n">queryset</span>
<span class="bp">self</span><span class="o">.</span><span class="n">chunked_fetch</span> <span class="o">=</span> <span class="n">chunked_fetch</span>
<span class="bp">self</span><span class="o">.</span><span class="n">chunk_size</span> <span class="o">=</span> <span class="n">chunk_size</span>
@ -87,7 +87,7 @@
<span class="k">class</span> <span class="nc">ModelIterable</span><span class="p">(</span><span class="n">BaseIterable</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Iterable that yields a model instance for each row.&quot;&quot;&quot;</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="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">queryset</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">queryset</span>
<span class="n">db</span> <span class="o">=</span> <span class="n">queryset</span><span class="o">.</span><span class="n">db</span>
<span class="n">compiler</span> <span class="o">=</span> <span class="n">queryset</span><span class="o">.</span><span class="n">query</span><span class="o">.</span><span class="n">get_compiler</span><span class="p">(</span><span class="n">using</span><span class="o">=</span><span class="n">db</span><span class="p">)</span>
@ -139,7 +139,7 @@
<span class="sd"> Iterable returned by QuerySet.values() that yields a dict for each row.</span>
<span class="sd"> &quot;&quot;&quot;</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="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">queryset</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">queryset</span>
<span class="n">query</span> <span class="o">=</span> <span class="n">queryset</span><span class="o">.</span><span class="n">query</span>
<span class="n">compiler</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">get_compiler</span><span class="p">(</span><span class="n">queryset</span><span class="o">.</span><span class="n">db</span><span class="p">)</span>
@ -161,7 +161,7 @@
<span class="sd"> for each row.</span>
<span class="sd"> &quot;&quot;&quot;</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="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">queryset</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">queryset</span>
<span class="n">query</span> <span class="o">=</span> <span class="n">queryset</span><span class="o">.</span><span class="n">query</span>
<span class="n">compiler</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">get_compiler</span><span class="p">(</span><span class="n">queryset</span><span class="o">.</span><span class="n">db</span><span class="p">)</span>
@ -198,7 +198,7 @@
<span class="c1"># called for every QuerySet evaluation.</span>
<span class="k">return</span> <span class="n">namedtuple</span><span class="p">(</span><span class="s1">&#39;Row&#39;</span><span class="p">,</span> <span class="n">names</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="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">queryset</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">queryset</span>
<span class="k">if</span> <span class="n">queryset</span><span class="o">.</span><span class="n">_fields</span><span class="p">:</span>
<span class="n">names</span> <span class="o">=</span> <span class="n">queryset</span><span class="o">.</span><span class="n">_fields</span>
@ -217,7 +217,7 @@
<span class="sd"> values.</span>
<span class="sd"> &quot;&quot;&quot;</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="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">queryset</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">queryset</span>
<span class="n">compiler</span> <span class="o">=</span> <span class="n">queryset</span><span class="o">.</span><span class="n">query</span><span class="o">.</span><span class="n">get_compiler</span><span class="p">(</span><span class="n">queryset</span><span class="o">.</span><span class="n">db</span><span class="p">)</span>
<span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">compiler</span><span class="o">.</span><span class="n">results_iter</span><span class="p">(</span><span class="n">chunked_fetch</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">chunked_fetch</span><span class="p">,</span> <span class="n">chunk_size</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">chunk_size</span><span class="p">):</span>
@ -227,7 +227,7 @@
<span class="k">class</span> <span class="nc">QuerySet</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Represent a lazy database lookup for a set of objects.&quot;&quot;&quot;</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">model</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">query</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">using</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">hints</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">model</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">query</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">using</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">hints</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">model</span> <span class="o">=</span> <span class="n">model</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_db</span> <span class="o">=</span> <span class="n">using</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_hints</span> <span class="o">=</span> <span class="n">hints</span> <span class="ow">or</span> <span class="p">{}</span>
@ -243,7 +243,7 @@
<span class="k">def</span> <span class="nf">as_manager</span><span class="p">(</span><span class="bp">cls</span><span class="p">):</span>
<span class="c1"># Address the circular dependency between `Queryset` and `Manager`.</span>
<span class="kn">from</span> <span class="nn">django.db.models.manager</span> <span class="k">import</span> <span class="n">Manager</span>
<span class="kn">from</span> <span class="nn">django.db.models.manager</span> <span class="kn">import</span> <span class="n">Manager</span>
<span class="n">manager</span> <span class="o">=</span> <span class="n">Manager</span><span class="o">.</span><span class="n">from_queryset</span><span class="p">(</span><span class="bp">cls</span><span class="p">)()</span>
<span class="n">manager</span><span class="o">.</span><span class="n">_built_with_as_manager</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">return</span> <span class="n">manager</span>
@ -287,17 +287,17 @@
<span class="bp">self</span><span class="o">.</span><span class="vm">__dict__</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">state</span><span class="p">)</span>
<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">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">data</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="n">REPR_OUTPUT_SIZE</span> <span class="o">+</span> <span class="mi">1</span><span class="p">])</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">data</span><span class="p">)</span> <span class="o">&gt;</span> <span class="n">REPR_OUTPUT_SIZE</span><span class="p">:</span>
<span class="n">data</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="s2">&quot;...(remaining elements truncated)...&quot;</span>
<span class="k">return</span> <span class="s1">&#39;&lt;</span><span class="si">%s</span><span class="s1"> </span><span class="si">%r</span><span class="s1">&gt;&#39;</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="n">data</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_fetch_all</span><span class="p">()</span>
<span class="k">return</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_result_cache</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="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> The queryset iterator protocol uses three nested iterators in the</span>
<span class="sd"> default case:</span>
@ -315,11 +315,11 @@
<span class="bp">self</span><span class="o">.</span><span class="n">_fetch_all</span><span class="p">()</span>
<span class="k">return</span> <span class="nb">iter</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_result_cache</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">__bool__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__bool__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_fetch_all</span><span class="p">()</span>
<span class="k">return</span> <span class="nb">bool</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_result_cache</span><span class="p">)</span>
<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">k</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">k</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Retrieve an item or slice from the set of results.&quot;&quot;&quot;</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">k</span><span class="p">,</span> <span class="p">(</span><span class="nb">int</span><span class="p">,</span> <span class="nb">slice</span><span class="p">)):</span>
<span class="k">raise</span> <span class="ne">TypeError</span>
@ -349,7 +349,7 @@
<span class="n">qs</span><span class="o">.</span><span class="n">_fetch_all</span><span class="p">()</span>
<span class="k">return</span> <span class="n">qs</span><span class="o">.</span><span class="n">_result_cache</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">def</span> <span class="nf">__and__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__and__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_merge_sanity_check</span><span class="p">(</span><span class="n">other</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="n">EmptyQuerySet</span><span class="p">):</span>
<span class="k">return</span> <span class="n">other</span>
@ -360,7 +360,7 @@
<span class="n">combined</span><span class="o">.</span><span class="n">query</span><span class="o">.</span><span class="n">combine</span><span class="p">(</span><span class="n">other</span><span class="o">.</span><span class="n">query</span><span class="p">,</span> <span class="n">sql</span><span class="o">.</span><span class="n">AND</span><span class="p">)</span>
<span class="k">return</span> <span class="n">combined</span>
<span class="k">def</span> <span class="nf">__or__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__or__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_merge_sanity_check</span><span class="p">(</span><span class="n">other</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">EmptyQuerySet</span><span class="p">):</span>
<span class="k">return</span> <span class="n">other</span>
@ -1354,7 +1354,7 @@
<span class="k">class</span> <span class="nc">InstanceCheckMeta</span><span class="p">(</span><span class="nb">type</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__instancecheck__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">instance</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__instancecheck__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">instance</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">instance</span><span class="p">,</span> <span class="n">QuerySet</span><span class="p">)</span> <span class="ow">and</span> <span class="n">instance</span><span class="o">.</span><span class="n">query</span><span class="o">.</span><span class="n">is_empty</span><span class="p">()</span>
@ -1364,7 +1364,7 @@
<span class="sd"> isinstance(qs.none(), EmptyQuerySet) -&gt; True</span>
<span class="sd"> &quot;&quot;&quot;</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="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s2">&quot;EmptyQuerySet can&#39;t be instantiated&quot;</span><span class="p">)</span>
@ -1373,7 +1373,7 @@
<span class="sd"> Provide an iterator which converts the results of raw SQL queries into</span>
<span class="sd"> annotated model instances.</span>
<span class="sd"> &quot;&quot;&quot;</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">raw_query</span><span class="p">,</span> <span class="n">model</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">query</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">params</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">raw_query</span><span class="p">,</span> <span class="n">model</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">query</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">params</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
<span class="n">translations</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">using</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">hints</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">raw_query</span> <span class="o">=</span> <span class="n">raw_query</span>
<span class="bp">self</span><span class="o">.</span><span class="n">model</span> <span class="o">=</span> <span class="n">model</span>
@ -1424,15 +1424,15 @@
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_prefetch_related_lookups</span> <span class="ow">and</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_prefetch_done</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_prefetch_related_objects</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_fetch_all</span><span class="p">()</span>
<span class="k">return</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_result_cache</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">__bool__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__bool__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_fetch_all</span><span class="p">()</span>
<span class="k">return</span> <span class="nb">bool</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_result_cache</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="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_fetch_all</span><span class="p">()</span>
<span class="k">return</span> <span class="nb">iter</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_result_cache</span><span class="p">)</span>
@ -1469,10 +1469,10 @@
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">query</span><span class="p">,</span> <span class="s1">&#39;cursor&#39;</span><span class="p">)</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">query</span><span class="o">.</span><span class="n">cursor</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">query</span><span class="o">.</span><span class="n">cursor</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
<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">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="s2">&quot;&lt;</span><span class="si">%s</span><span class="s2">: </span><span class="si">%s</span><span class="s2">&gt;&quot;</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="bp">self</span><span class="o">.</span><span class="n">query</span><span class="p">)</span>
<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">k</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">k</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">k</span><span class="p">]</span>
<span class="nd">@property</span>
@ -1519,7 +1519,7 @@
<span class="k">class</span> <span class="nc">Prefetch</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">lookup</span><span class="p">,</span> <span class="n">queryset</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">to_attr</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lookup</span><span class="p">,</span> <span class="n">queryset</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">to_attr</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="c1"># `prefetch_through` is the path we traverse to perform the prefetch.</span>
<span class="bp">self</span><span class="o">.</span><span class="n">prefetch_through</span> <span class="o">=</span> <span class="n">lookup</span>
<span class="c1"># `prefetch_to` is the path to the attribute that stores the result.</span>
@ -1560,10 +1560,10 @@
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">queryset</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">def</span> <span class="nf">__eq__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__eq__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="n">Prefetch</span><span class="p">)</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">prefetch_to</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">prefetch_to</span>
<span class="k">def</span> <span class="nf">__hash__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__hash__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">hash</span><span class="p">((</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">prefetch_to</span><span class="p">))</span>
@ -1867,7 +1867,7 @@
<span class="sd"> method gets row and from_obj as input and populates the select_related()</span>
<span class="sd"> model instance.</span>
<span class="sd"> &quot;&quot;&quot;</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">klass_info</span><span class="p">,</span> <span class="n">select</span><span class="p">,</span> <span class="n">db</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">klass_info</span><span class="p">,</span> <span class="n">select</span><span class="p">,</span> <span class="n">db</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">db</span> <span class="o">=</span> <span class="n">db</span>
<span class="c1"># Pre-compute needed attributes. The attributes are:</span>
<span class="c1"># - model_cls: the possibly deferred model class to instantiate</span>