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id="_modules-django-contrib-postgres-validators"> <h1>Source code for django.contrib.postgres.validators</h1><div class="highlight"><pre> <span></span><span class="kn">import</span> <span class="nn">copy</span> <span class="kn">from</span> <span class="nn">django.core.exceptions</span> <span class="k">import</span> <span class="n">ValidationError</span> <span class="kn">from</span> <span class="nn">django.core.validators</span> <span class="k">import</span> <span class="p">(</span> <span class="n">MaxLengthValidator</span><span class="p">,</span> <span class="n">MaxValueValidator</span><span class="p">,</span> <span class="n">MinLengthValidator</span><span class="p">,</span> <span class="n">MinValueValidator</span><span class="p">,</span> <span class="p">)</span> <span class="kn">from</span> <span class="nn">django.utils.deconstruct</span> <span class="k">import</span> <span class="n">deconstructible</span> <span class="kn">from</span> <span class="nn">django.utils.translation</span> <span class="k">import</span> <span class="n">ugettext_lazy</span> <span class="k">as</span> <span class="n">_</span><span class="p">,</span> <span class="n">ungettext_lazy</span> <span class="k">class</span> <span class="nc">ArrayMaxLengthValidator</span><span class="p">(</span><span class="n">MaxLengthValidator</span><span class="p">):</span> <span class="n">message</span> <span class="o">=</span> <span class="n">ungettext_lazy</span><span class="p">(</span> <span class="s1">'List contains </span><span class="si">%(show_value)d</span><span class="s1"> item, it should contain no more than </span><span class="si">%(limit_value)d</span><span class="s1">.'</span><span class="p">,</span> <span class="s1">'List contains </span><span class="si">%(show_value)d</span><span class="s1"> items, it should contain no more than </span><span class="si">%(limit_value)d</span><span class="s1">.'</span><span class="p">,</span> <span class="s1">'limit_value'</span><span class="p">)</span> <span class="k">class</span> <span class="nc">ArrayMinLengthValidator</span><span class="p">(</span><span class="n">MinLengthValidator</span><span class="p">):</span> <span class="n">message</span> <span class="o">=</span> <span class="n">ungettext_lazy</span><span class="p">(</span> <span class="s1">'List contains </span><span class="si">%(show_value)d</span><span class="s1"> item, it should contain no fewer than </span><span class="si">%(limit_value)d</span><span class="s1">.'</span><span class="p">,</span> <span class="s1">'List contains </span><span class="si">%(show_value)d</span><span class="s1"> items, it should contain no fewer than </span><span class="si">%(limit_value)d</span><span class="s1">.'</span><span class="p">,</span> <span class="s1">'limit_value'</span><span class="p">)</span> <span class="nd">@deconstructible</span> <div class="viewcode-block" id="KeysValidator"><a class="viewcode-back" href="../../../../ref/contrib/postgres/validators.html#django.contrib.postgres.validators.KeysValidator">[docs]</a><span class="k">class</span> <span class="nc">KeysValidator</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span> <span class="sd">"""A validator designed for HStore to require/restrict keys."""</span> <span class="n">messages</span> <span class="o">=</span> <span class="p">{</span> <span class="s1">'missing_keys'</span><span class="p">:</span> <span class="n">_</span><span class="p">(</span><span class="s1">'Some keys were missing: </span><span class="si">%(keys)s</span><span class="s1">'</span><span class="p">),</span> <span class="s1">'extra_keys'</span><span class="p">:</span> <span class="n">_</span><span class="p">(</span><span class="s1">'Some unknown keys were provided: </span><span class="si">%(keys)s</span><span class="s1">'</span><span class="p">),</span> <span class="p">}</span> <span class="n">strict</span> <span class="o">=</span> <span class="kc">False</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">keys</span><span class="p">,</span> <span class="n">strict</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">messages</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">keys</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">keys</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">strict</span> <span class="o">=</span> <span class="n">strict</span> <span class="k">if</span> <span class="n">messages</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">messages</span> <span class="o">=</span> <span class="n">copy</span><span class="o">.</span><span class="n">copy</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">messages</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">messages</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">messages</span><span class="p">)</span> <span class="k">def</span> <span class="nf">__call__</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="n">keys</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">value</span><span class="o">.</span><span class="n">keys</span><span class="p">())</span> <span class="n">missing_keys</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">keys</span> <span class="o">-</span> <span class="n">keys</span> <span class="k">if</span> <span class="n">missing_keys</span><span class="p">:</span> <span class="k">raise</span> <span class="n">ValidationError</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">messages</span><span class="p">[</span><span class="s1">'missing_keys'</span><span class="p">],</span> <span class="n">code</span><span class="o">=</span><span class="s1">'missing_keys'</span><span class="p">,</span> <span class="n">params</span><span class="o">=</span><span class="p">{</span><span class="s1">'keys'</span><span class="p">:</span> <span class="s1">', '</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">missing_keys</span><span class="p">)},</span> <span class="p">)</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">strict</span><span class="p">:</span> <span class="n">extra_keys</span> <span class="o">=</span> <span class="n">keys</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">keys</span> <span class="k">if</span> <span class="n">extra_keys</span><span class="p">:</span> <span class="k">raise</span> <span class="n">ValidationError</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">messages</span><span class="p">[</span><span class="s1">'extra_keys'</span><span class="p">],</span> <span class="n">code</span><span class="o">=</span><span class="s1">'extra_keys'</span><span class="p">,</span> <span class="n">params</span><span class="o">=</span><span class="p">{</span><span class="s1">'keys'</span><span class="p">:</span> <span class="s1">', '</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">extra_keys</span><span class="p">)},</span> <span class="p">)</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">return</span> <span class="p">(</span> <span class="nb">isinstance</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">__class__</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">keys</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">keys</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">messages</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">messages</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">strict</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">strict</span><span class="p">)</span> <span class="p">)</span> <span class="k">def</span> <span class="nf">__ne__</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="ow">not</span> <span class="p">(</span><span class="bp">self</span> <span class="o">==</span> <span class="n">other</span><span class="p">)</span></div> <div class="viewcode-block" id="RangeMaxValueValidator"><a class="viewcode-back" href="../../../../ref/contrib/postgres/validators.html#django.contrib.postgres.validators.RangeMaxValueValidator">[docs]</a><span class="k">class</span> <span class="nc">RangeMaxValueValidator</span><span class="p">(</span><span class="n">MaxValueValidator</span><span class="p">):</span> <span class="n">compare</span> <span class="o">=</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">:</span> <span class="n">a</span><span class="o">.</span><span class="n">upper</span> <span class="o">></span> <span class="n">b</span> <span class="n">message</span> <span class="o">=</span> <span class="n">_</span><span class="p">(</span><span class="s1">'Ensure that this range is completely less than or equal to </span><span class="si">%(limit_value)s</span><span class="s1">.'</span><span class="p">)</span></div> <div class="viewcode-block" id="RangeMinValueValidator"><a class="viewcode-back" href="../../../../ref/contrib/postgres/validators.html#django.contrib.postgres.validators.RangeMinValueValidator">[docs]</a><span class="k">class</span> <span class="nc">RangeMinValueValidator</span><span class="p">(</span><span class="n">MinValueValidator</span><span class="p">):</span> <span class="n">compare</span> <span class="o">=</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">:</span> <span class="n">a</span><span class="o">.</span><span class="n">lower</span> <span class="o"><</span> <span class="n">b</span> <span class="n">message</span> <span class="o">=</span> <span class="n">_</span><span class="p">(</span><span class="s1">'Ensure that this range is completely greater than or equal to </span><span class="si">%(limit_value)s</span><span class="s1">.'</span><span class="p">)</span></div> </pre></div> </div> </div> </div> <div class="yui-b" id="sidebar"> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"> <h3>Browse</h3> <ul> </ul> <h3>You are here:</h3> <ul> <li> <a 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