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id="_modules-django-forms-extras-widgets"> <h1>Source code for django.forms.extras.widgets</h1><div class="highlight"><pre> <span></span><span class="sd">"""</span> <span class="sd">Extra HTML Widget classes</span> <span class="sd">"""</span> <span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="n">unicode_literals</span> <span class="kn">import</span> <span class="nn">datetime</span> <span class="kn">import</span> <span class="nn">re</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.forms.widgets</span> <span class="k">import</span> <span class="n">Select</span><span class="p">,</span> <span class="n">Widget</span> <span class="kn">from</span> <span class="nn">django.utils</span> <span class="k">import</span> <span class="n">datetime_safe</span><span class="p">,</span> <span class="n">six</span> <span class="kn">from</span> <span class="nn">django.utils.dates</span> <span class="k">import</span> <span class="n">MONTHS</span> <span class="kn">from</span> <span class="nn">django.utils.encoding</span> <span class="k">import</span> <span class="n">force_str</span> <span class="kn">from</span> <span class="nn">django.utils.formats</span> <span class="k">import</span> <span class="n">get_format</span> <span class="kn">from</span> <span class="nn">django.utils.safestring</span> <span class="k">import</span> <span class="n">mark_safe</span> <span class="n">__all__</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'SelectDateWidget'</span><span class="p">,)</span> <span class="n">RE_DATE</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span><span class="s1">r'(\d</span><span class="si">{4}</span><span class="s1">)-(\d\d?)-(\d\d?)$'</span><span class="p">)</span> <span class="k">def</span> <span class="nf">_parse_date_fmt</span><span class="p">():</span> <span class="n">fmt</span> <span class="o">=</span> <span class="n">get_format</span><span class="p">(</span><span class="s1">'DATE_FORMAT'</span><span class="p">)</span> <span class="n">escaped</span> <span class="o">=</span> <span class="kc">False</span> <span class="k">for</span> <span class="n">char</span> <span class="ow">in</span> <span class="n">fmt</span><span class="p">:</span> <span class="k">if</span> <span class="n">escaped</span><span class="p">:</span> <span class="n">escaped</span> <span class="o">=</span> <span class="kc">False</span> <span class="k">elif</span> <span class="n">char</span> <span class="o">==</span> <span class="s1">'</span><span class="se">\\</span><span class="s1">'</span><span class="p">:</span> <span class="n">escaped</span> <span class="o">=</span> <span class="kc">True</span> <span class="k">elif</span> <span class="n">char</span> <span class="ow">in</span> <span class="s1">'Yy'</span><span class="p">:</span> <span class="k">yield</span> <span class="s1">'year'</span> <span class="k">elif</span> <span class="n">char</span> <span class="ow">in</span> <span class="s1">'bEFMmNn'</span><span class="p">:</span> <span class="k">yield</span> <span class="s1">'month'</span> <span class="k">elif</span> <span class="n">char</span> <span class="ow">in</span> <span class="s1">'dj'</span><span class="p">:</span> <span class="k">yield</span> <span class="s1">'day'</span> <div class="viewcode-block" id="SelectDateWidget"><a class="viewcode-back" href="../../../../ref/forms/widgets.html#django.forms.extras.widgets.SelectDateWidget">[docs]</a><span class="k">class</span> <span class="nc">SelectDateWidget</span><span class="p">(</span><span class="n">Widget</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> A Widget that splits date input into three <select> boxes.</span> <span class="sd"> This also serves as an example of a Widget that has more than one HTML</span> <span class="sd"> element and hence implements value_from_datadict.</span> <span class="sd"> """</span> <span class="n">none_value</span> <span class="o">=</span> <span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="s1">'---'</span><span class="p">)</span> <span class="n">month_field</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">_month'</span> <span class="n">day_field</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">_day'</span> <span class="n">year_field</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">_year'</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">attrs</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">years</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">months</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">empty_label</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">attrs</span> <span class="o">=</span> <span class="n">attrs</span> <span class="ow">or</span> <span class="p">{}</span> <span class="c1"># Optional list or tuple of years to use in the "year" select box.</span> <span class="k">if</span> <span class="n">years</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">years</span> <span class="o">=</span> <span class="n">years</span> <span class="k">else</span><span class="p">:</span> <span class="n">this_year</span> <span class="o">=</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="o">.</span><span class="n">today</span><span class="p">()</span><span class="o">.</span><span class="n">year</span> <span class="bp">self</span><span class="o">.</span><span class="n">years</span> <span class="o">=</span> <span class="nb">range</span><span class="p">(</span><span class="n">this_year</span><span class="p">,</span> <span class="n">this_year</span> <span class="o">+</span> <span class="mi">10</span><span class="p">)</span> <span class="c1"># Optional dict of months to use in the "month" select box.</span> <span class="k">if</span> <span class="n">months</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">months</span> <span class="o">=</span> <span class="n">months</span> <span class="k">else</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">months</span> <span class="o">=</span> <span class="n">MONTHS</span> <span class="c1"># Optional string, list, or tuple to use as empty_label.</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">empty_label</span><span class="p">,</span> <span class="p">(</span><span class="nb">list</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">)):</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">len</span><span class="p">(</span><span class="n">empty_label</span><span class="p">)</span> <span class="o">==</span> <span class="mi">3</span><span class="p">:</span> <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">'empty_label list/tuple must have 3 elements.'</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">year_none_value</span> <span class="o">=</span> <span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">empty_label</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="bp">self</span><span class="o">.</span><span class="n">month_none_value</span> <span class="o">=</span> <span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">empty_label</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span> <span class="bp">self</span><span class="o">.</span><span class="n">day_none_value</span> <span class="o">=</span> <span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">empty_label</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span> <span class="k">else</span><span class="p">:</span> <span class="k">if</span> <span class="n">empty_label</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">none_value</span> <span class="o">=</span> <span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">empty_label</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">year_none_value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">none_value</span> <span class="bp">self</span><span class="o">.</span><span class="n">month_none_value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">none_value</span> <span class="bp">self</span><span class="o">.</span><span class="n">day_none_value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">none_value</span> <span class="k">def</span> <span class="nf">render</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">,</span> <span class="n">attrs</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> <span class="k">try</span><span class="p">:</span> <span class="n">year_val</span><span class="p">,</span> <span class="n">month_val</span><span class="p">,</span> <span class="n">day_val</span> <span class="o">=</span> <span class="n">value</span><span class="o">.</span><span class="n">year</span><span class="p">,</span> <span class="n">value</span><span class="o">.</span><span class="n">month</span><span class="p">,</span> <span class="n">value</span><span class="o">.</span><span class="n">day</span> <span class="k">except</span> <span class="ne">AttributeError</span><span class="p">:</span> <span class="n">year_val</span> <span class="o">=</span> <span class="n">month_val</span> <span class="o">=</span> <span class="n">day_val</span> <span class="o">=</span> <span class="kc">None</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="n">six</span><span class="o">.</span><span class="n">string_types</span><span class="p">):</span> <span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">USE_L10N</span><span class="p">:</span> <span class="k">try</span><span class="p">:</span> <span class="n">input_format</span> <span class="o">=</span> <span class="n">get_format</span><span class="p">(</span><span class="s1">'DATE_INPUT_FORMATS'</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span> <span class="n">v</span> <span class="o">=</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">strptime</span><span class="p">(</span><span class="n">force_str</span><span class="p">(</span><span class="n">value</span><span class="p">),</span> <span class="n">input_format</span><span class="p">)</span> <span class="n">year_val</span><span class="p">,</span> <span class="n">month_val</span><span class="p">,</span> <span class="n">day_val</span> <span class="o">=</span> <span class="n">v</span><span class="o">.</span><span class="n">year</span><span class="p">,</span> <span class="n">v</span><span class="o">.</span><span class="n">month</span><span class="p">,</span> <span class="n">v</span><span class="o">.</span><span class="n">day</span> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span> <span class="k">pass</span> <span class="k">else</span><span class="p">:</span> <span class="n">match</span> <span class="o">=</span> <span class="n">RE_DATE</span><span class="o">.</span><span class="n">match</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> <span class="k">if</span> <span class="n">match</span><span class="p">:</span> <span class="n">year_val</span><span class="p">,</span> <span class="n">month_val</span><span class="p">,</span> <span class="n">day_val</span> <span class="o">=</span> <span class="p">[</span><span class="nb">int</span><span class="p">(</span><span class="n">v</span><span class="p">)</span> <span class="k">for</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">match</span><span class="o">.</span><span class="n">groups</span><span class="p">()]</span> <span class="n">html</span> <span class="o">=</span> <span class="p">{}</span> <span class="n">choices</span> <span class="o">=</span> <span class="p">[(</span><span class="n">i</span><span class="p">,</span> <span class="n">i</span><span class="p">)</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">years</span><span class="p">]</span> <span class="n">html</span><span class="p">[</span><span class="s1">'year'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">create_select</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">year_field</span><span class="p">,</span> <span class="n">value</span><span class="p">,</span> <span class="n">year_val</span><span class="p">,</span> <span class="n">choices</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">year_none_value</span><span class="p">)</span> <span class="n">choices</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">six</span><span class="o">.</span><span class="n">iteritems</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">months</span><span class="p">))</span> <span class="n">html</span><span class="p">[</span><span class="s1">'month'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">create_select</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">month_field</span><span class="p">,</span> <span class="n">value</span><span class="p">,</span> <span class="n">month_val</span><span class="p">,</span> <span class="n">choices</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">month_none_value</span><span class="p">)</span> <span class="n">choices</span> <span class="o">=</span> <span class="p">[(</span><span class="n">i</span><span class="p">,</span> <span class="n">i</span><span class="p">)</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">32</span><span class="p">)]</span> <span class="n">html</span><span class="p">[</span><span class="s1">'day'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">create_select</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">day_field</span><span class="p">,</span> <span class="n">value</span><span class="p">,</span> <span class="n">day_val</span><span class="p">,</span> <span class="n">choices</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">day_none_value</span><span class="p">)</span> <span class="n">output</span> <span class="o">=</span> <span class="p">[]</span> <span class="k">for</span> <span class="n">field</span> <span class="ow">in</span> <span class="n">_parse_date_fmt</span><span class="p">():</span> <span class="n">output</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">html</span><span class="p">[</span><span class="n">field</span><span class="p">])</span> <span class="k">return</span> <span class="n">mark_safe</span><span class="p">(</span><span class="s1">'</span><span class="se">\n</span><span class="s1">'</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">output</span><span class="p">))</span> <span class="k">def</span> <span class="nf">id_for_label</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">id_</span><span class="p">):</span> <span class="k">for</span> <span class="n">first_select</span> <span class="ow">in</span> <span class="n">_parse_date_fmt</span><span class="p">():</span> <span class="k">return</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">_</span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">id_</span><span class="p">,</span> <span class="n">first_select</span><span class="p">)</span> <span class="k">else</span><span class="p">:</span> <span class="k">return</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">_month'</span> <span class="o">%</span> <span class="n">id_</span> <span class="k">def</span> <span class="nf">value_from_datadict</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="n">files</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="n">y</span> <span class="o">=</span> <span class="n">data</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">year_field</span> <span class="o">%</span> <span class="n">name</span><span class="p">)</span> <span class="n">m</span> <span class="o">=</span> <span class="n">data</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">month_field</span> <span class="o">%</span> <span class="n">name</span><span class="p">)</span> <span class="n">d</span> <span class="o">=</span> <span class="n">data</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">day_field</span> <span class="o">%</span> <span class="n">name</span><span class="p">)</span> <span class="k">if</span> <span class="n">y</span> <span class="o">==</span> <span class="n">m</span> <span class="o">==</span> <span class="n">d</span> <span class="o">==</span> <span class="s2">"0"</span><span class="p">:</span> <span class="k">return</span> <span class="kc">None</span> <span class="k">if</span> <span class="n">y</span> <span class="ow">and</span> <span class="n">m</span> <span class="ow">and</span> <span class="n">d</span><span class="p">:</span> <span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">USE_L10N</span><span class="p">:</span> <span class="n">input_format</span> <span class="o">=</span> <span class="n">get_format</span><span class="p">(</span><span class="s1">'DATE_INPUT_FORMATS'</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span> <span class="k">try</span><span class="p">:</span> <span class="n">date_value</span> <span class="o">=</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">(</span><span class="nb">int</span><span class="p">(</span><span class="n">y</span><span class="p">),</span> <span class="nb">int</span><span class="p">(</span><span class="n">m</span><span class="p">),</span> <span class="nb">int</span><span class="p">(</span><span class="n">d</span><span class="p">))</span> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span> <span class="k">return</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">-</span><span class="si">%s</span><span class="s1">-</span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">y</span><span class="p">,</span> <span class="n">m</span><span class="p">,</span> <span class="n">d</span><span class="p">)</span> <span class="k">else</span><span class="p">:</span> <span class="n">date_value</span> <span class="o">=</span> <span class="n">datetime_safe</span><span class="o">.</span><span class="n">new_date</span><span class="p">(</span><span class="n">date_value</span><span class="p">)</span> <span class="k">return</span> <span class="n">date_value</span><span class="o">.</span><span class="n">strftime</span><span class="p">(</span><span class="n">input_format</span><span class="p">)</span> <span class="k">else</span><span class="p">:</span> <span class="k">return</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">-</span><span class="si">%s</span><span class="s1">-</span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">y</span><span class="p">,</span> <span class="n">m</span><span class="p">,</span> <span class="n">d</span><span class="p">)</span> <span class="k">return</span> <span class="n">data</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> <span class="k">def</span> <span class="nf">create_select</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">field</span><span class="p">,</span> <span class="n">value</span><span class="p">,</span> <span class="n">val</span><span class="p">,</span> <span class="n">choices</span><span class="p">,</span> <span class="n">none_value</span><span class="p">):</span> <span class="k">if</span> <span class="s1">'id'</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">attrs</span><span class="p">:</span> <span class="n">id_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">attrs</span><span class="p">[</span><span class="s1">'id'</span><span class="p">]</span> <span class="k">else</span><span class="p">:</span> <span class="n">id_</span> <span class="o">=</span> <span class="s1">'id_</span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">name</span> <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">is_required</span><span class="p">:</span> <span class="n">choices</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">none_value</span><span class="p">)</span> <span class="n">local_attrs</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">build_attrs</span><span class="p">(</span><span class="nb">id</span><span class="o">=</span><span class="n">field</span> <span class="o">%</span> <span class="n">id_</span><span class="p">)</span> <span class="n">s</span> <span class="o">=</span> <span class="n">Select</span><span class="p">(</span><span class="n">choices</span><span class="o">=</span><span class="n">choices</span><span class="p">)</span> <span class="n">select_html</span> <span class="o">=</span> <span class="n">s</span><span class="o">.</span><span class="n">render</span><span class="p">(</span><span class="n">field</span> <span class="o">%</span> <span class="n">name</span><span class="p">,</span> <span class="n">val</span><span class="p">,</span> <span class="n">local_attrs</span><span class="p">)</span> <span class="k">return</span> <span class="n">select_html</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 href="../../../../index.html">Django 1.8.19 documentation</a> <ul><li><a href="../../../index.html">Module code</a> <ul><li><a href="../../../django.html">django</a> <ul><li>django.forms.extras.widgets</li></ul> </li></ul></li></ul> </li> </ul> <div id="searchbox" style="display: none" role="search"> <h3>Quick search</h3> <form class="search" action="../../../../search.html" method="get"> <div><input type="text" name="q" /></div> <div><input type="submit" value="Go" /></div> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> </div> <script type="text/javascript">$('#searchbox').show(0);</script> 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