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2012-10-04 23:23:21 +05:30

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<div class="section" id="util">
<h1>Util<a class="headerlink" href="#util" title="Permalink to this headline"></a></h1>
<div class="section" id="class-diagram">
<h2>Class Diagram<a class="headerlink" href="#class-diagram" title="Permalink to this headline"></a></h2>
<p class="graphviz">
<img src="_images/inheritance-b1d6d9e7c478c7dc16ac802dba655251d1a9f594.png" alt="Inheritance diagram of django_select2.util" usemap="#inheritance39128e562c" class="inheritance"/>
<map id="inheritance39128e562c" name="inheritance39128e562c">
<area shape="poly" id="node1" href="#django_select2.util.JSFunction" title="JSFunction" alt="" coords="127,105,124,100,115,95,101,92,84,89,65,88,46,89,29,92,16,95,7,100,4,105,7,111,16,115,29,119,46,121,65,122,84,121,101,119,115,115,124,111"/>
<area shape="poly" id="node2" href="#django_select2.util.JSVar" title="JSVar" alt="" coords="199,23,197,17,191,13,183,9,172,7,160,6,148,7,137,9,129,13,123,17,121,23,123,28,129,33,137,36,148,39,160,40,172,39,183,36,191,33,197,28"/>
<area shape="poly" id="node4" href="#django_select2.util.JSFunctionInContext" title="JSFunctionInContext" alt="" coords="358,105,353,100,339,95,316,92,287,89,255,88,223,89,194,92,171,95,156,100,151,105,156,111,171,115,194,119,223,121,255,122,287,121,316,119,339,115,353,111"/>
</map>
</p>
</div>
<div class="section" id="module-django_select2.util">
<span id="reference"></span><h2>Reference<a class="headerlink" href="#module-django_select2.util" title="Permalink to this headline"></a></h2>
<dl class="class">
<dt id="django_select2.util.JSVar">
<em class="property">class </em><tt class="descclassname">django_select2.util.</tt><tt class="descname">JSVar</tt><a class="reference internal" href="_modules/django_select2/util.html#JSVar"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#django_select2.util.JSVar" title="Permalink to this definition"></a></dt>
<dd><p>Bases: <tt class="xref py py-class docutils literal"><span class="pre">unicode</span></tt></p>
<p>A JS variable.</p>
<p>This is a simple unicode string. This class type acts as a marker that this string is a JS variable name,
so it must not be quoted by <a class="reference internal" href="#django_select2.util.convert_py_to_js_data" title="django_select2.util.convert_py_to_js_data"><tt class="xref py py-func docutils literal"><span class="pre">convert_py_to_js_data()</span></tt></a> while rendering the JS code.</p>
</dd></dl>
<dl class="class">
<dt id="django_select2.util.JSFunction">
<em class="property">class </em><tt class="descclassname">django_select2.util.</tt><tt class="descname">JSFunction</tt><a class="reference internal" href="_modules/django_select2/util.html#JSFunction"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#django_select2.util.JSFunction" title="Permalink to this definition"></a></dt>
<dd><p>Bases: <a class="reference internal" href="#django_select2.util.JSVar" title="django_select2.util.JSVar"><tt class="xref py py-class docutils literal"><span class="pre">django_select2.util.JSVar</span></tt></a></p>
<p>A JS function name.</p>
<p>From rendering point of view, rendering this is no different from <a class="reference internal" href="#django_select2.util.JSVar" title="django_select2.util.JSVar"><tt class="xref py py-class docutils literal"><span class="pre">JSVar</span></tt></a>. After all, a JS varible
can refer a function instance, primitive constant or any other object. They are still all varibles.</p>
<div class="admonition tip">
<p class="first admonition-title">Tip</p>
<p class="last">Do use this marker for JS functions. This will make the code clearer, and the purpose more easier to
understand.</p>
</div>
</dd></dl>
<dl class="class">
<dt id="django_select2.util.JSFunctionInContext">
<em class="property">class </em><tt class="descclassname">django_select2.util.</tt><tt class="descname">JSFunctionInContext</tt><a class="reference internal" href="_modules/django_select2/util.html#JSFunctionInContext"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#django_select2.util.JSFunctionInContext" title="Permalink to this definition"></a></dt>
<dd><p>Bases: <a class="reference internal" href="#django_select2.util.JSVar" title="django_select2.util.JSVar"><tt class="xref py py-class docutils literal"><span class="pre">django_select2.util.JSVar</span></tt></a></p>
<p>A JS function name to run in context of some other Html DOM element.</p>
<p>Like :py:class:JSFunction`, this too flags the string as JS function, but with a special requirement. The JS function
needs to be invoked in the context of a Html DOM, such that, <tt class="docutils literal"><span class="pre">this</span></tt> inside the function refers to that DOM instead of
<tt class="docutils literal"><span class="pre">window</span></tt>.</p>
<div class="admonition tip">
<p class="first admonition-title">Tip</p>
<p class="last">JS functions of this type are warapped inside special another JS function &#8211; <tt class="docutils literal"><span class="pre">django_select2.runInContextHelper</span></tt>.</p>
</div>
</dd></dl>
<dl class="function">
<dt id="django_select2.util.render_js_script">
<tt class="descclassname">django_select2.util.</tt><tt class="descname">render_js_script</tt><big>(</big><em>inner_code</em><big>)</big><a class="reference internal" href="_modules/django_select2/util.html#render_js_script"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#django_select2.util.render_js_script" title="Permalink to this definition"></a></dt>
<dd><p>This wraps <tt class="docutils literal"><span class="pre">inner_code</span></tt> string inside the following code block:</p>
<div class="highlight-python"><pre>&lt;script&gt;
$(function () {
// inner_code here
});
&lt;/script&gt;</pre>
</div>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#unicode" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">unicode</span></tt></a></td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="django_select2.util.extract_some_key_val">
<tt class="descclassname">django_select2.util.</tt><tt class="descname">extract_some_key_val</tt><big>(</big><em>dct</em>, <em>keys</em><big>)</big><a class="reference internal" href="_modules/django_select2/util.html#extract_some_key_val"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#django_select2.util.extract_some_key_val" title="Permalink to this definition"></a></dt>
<dd><p>Gets a sub-set of a <a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">dict</span></tt></a>.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>dct</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Source dictionary.</li>
<li><strong>keys</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#list" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">list</span></tt></a> or any iterable.) &#8211; List of subset keys, which to extract from <tt class="docutils literal"><span class="pre">dct</span></tt>.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">dict</span></tt></a></p>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="django_select2.util.convert_py_to_js_data">
<tt class="descclassname">django_select2.util.</tt><tt class="descname">convert_py_to_js_data</tt><big>(</big><em>val</em>, <em>id_</em><big>)</big><a class="reference internal" href="_modules/django_select2/util.html#convert_py_to_js_data"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#django_select2.util.convert_py_to_js_data" title="Permalink to this definition"></a></dt>
<dd><p>Converts Python data type to JS data type.</p>
<p>Practically what this means is, convert <tt class="docutils literal"><span class="pre">False</span></tt> to <tt class="docutils literal"><span class="pre">false</span></tt>, <tt class="docutils literal"><span class="pre">True</span></tt> to <tt class="docutils literal"><span class="pre">true</span></tt> and so on.
It also takes care of the conversion of <a class="reference internal" href="#django_select2.util.JSVar" title="django_select2.util.JSVar"><tt class="xref py py-class docutils literal"><span class="pre">JSVar</span></tt></a>, <a class="reference internal" href="#django_select2.util.JSFunction" title="django_select2.util.JSFunction"><tt class="xref py py-class docutils literal"><span class="pre">JSFunction</span></tt></a>
and <a class="reference internal" href="#django_select2.util.JSFunctionInContext" title="django_select2.util.JSFunctionInContext"><tt class="xref py py-class docutils literal"><span class="pre">JSFunctionInContext</span></tt></a>. It takes care of recursively converting lists and dictionaries
too.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>val</strong> (<em>Any</em>) &#8211; The Python data to convert.</li>
<li><strong>id</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#str" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">str</span></tt></a>) &#8211; The DOM id of the element in which context <a class="reference internal" href="#django_select2.util.JSFunctionInContext" title="django_select2.util.JSFunctionInContext"><tt class="xref py py-class docutils literal"><span class="pre">JSFunctionInContext</span></tt></a> functions
should run. (This is not needed if <tt class="docutils literal"><span class="pre">val</span></tt> contains no <a class="reference internal" href="#django_select2.util.JSFunctionInContext" title="django_select2.util.JSFunctionInContext"><tt class="xref py py-class docutils literal"><span class="pre">JSFunctionInContext</span></tt></a>)</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#unicode" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">unicode</span></tt></a></p>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="django_select2.util.convert_dict_to_js_map">
<tt class="descclassname">django_select2.util.</tt><tt class="descname">convert_dict_to_js_map</tt><big>(</big><em>dct</em>, <em>id_</em><big>)</big><a class="reference internal" href="_modules/django_select2/util.html#convert_dict_to_js_map"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#django_select2.util.convert_dict_to_js_map" title="Permalink to this definition"></a></dt>
<dd><p>Converts a Python dictionary to JS map.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>dct</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">dict</span></tt></a>) &#8211; The Python dictionary to convert.</li>
<li><strong>id</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#str" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">str</span></tt></a>) &#8211; The DOM id of the element in which context <a class="reference internal" href="#django_select2.util.JSFunctionInContext" title="django_select2.util.JSFunctionInContext"><tt class="xref py py-class docutils literal"><span class="pre">JSFunctionInContext</span></tt></a> functions
should run. (This is not needed if <tt class="docutils literal"><span class="pre">dct</span></tt> contains no <a class="reference internal" href="#django_select2.util.JSFunctionInContext" title="django_select2.util.JSFunctionInContext"><tt class="xref py py-class docutils literal"><span class="pre">JSFunctionInContext</span></tt></a>)</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#unicode" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">unicode</span></tt></a></p>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="django_select2.util.convert_to_js_arr">
<tt class="descclassname">django_select2.util.</tt><tt class="descname">convert_to_js_arr</tt><big>(</big><em>lst</em>, <em>id_</em><big>)</big><a class="reference internal" href="_modules/django_select2/util.html#convert_to_js_arr"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#django_select2.util.convert_to_js_arr" title="Permalink to this definition"></a></dt>
<dd><p>Converts a Python list (or any iterable) to JS array.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>lst</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#list" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">list</span></tt></a> or Any iterable) &#8211; The Python iterable to convert.</li>
<li><strong>id</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#str" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">str</span></tt></a>) &#8211; The DOM id of the element in which context <a class="reference internal" href="#django_select2.util.JSFunctionInContext" title="django_select2.util.JSFunctionInContext"><tt class="xref py py-class docutils literal"><span class="pre">JSFunctionInContext</span></tt></a> functions
should run. (This is not needed if <tt class="docutils literal"><span class="pre">lst</span></tt> contains no <a class="reference internal" href="#django_select2.util.JSFunctionInContext" title="django_select2.util.JSFunctionInContext"><tt class="xref py py-class docutils literal"><span class="pre">JSFunctionInContext</span></tt></a>)</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#unicode" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">unicode</span></tt></a></p>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="django_select2.util.convert_to_js_string_arr">
<tt class="descclassname">django_select2.util.</tt><tt class="descname">convert_to_js_string_arr</tt><big>(</big><em>lst</em><big>)</big><a class="reference internal" href="_modules/django_select2/util.html#convert_to_js_string_arr"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#django_select2.util.convert_to_js_string_arr" title="Permalink to this definition"></a></dt>
<dd><p>Converts a Python list (or any iterable) of strings to JS array.</p>
<p><a class="reference internal" href="#django_select2.util.convert_to_js_arr" title="django_select2.util.convert_to_js_arr"><tt class="xref py py-func docutils literal"><span class="pre">convert_to_js_arr()</span></tt></a> can always be used instead of this. However, since it
knows that it only contains strings, it cuts down on unnecessary computations.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#unicode" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">unicode</span></tt></a></td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="django_select2.util.synchronized">
<tt class="descclassname">django_select2.util.</tt><tt class="descname">synchronized</tt><big>(</big><em>f</em><big>)</big><a class="reference internal" href="_modules/django_select2/util.html#synchronized"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#django_select2.util.synchronized" title="Permalink to this definition"></a></dt>
<dd><p>Decorator to synchronize multiple calls to a functions.</p>
</dd></dl>
<dl class="function">
<dt id="django_select2.util.is_valid_id">
<tt class="descclassname">django_select2.util.</tt><tt class="descname">is_valid_id</tt><big>(</big><em>val</em><big>)</big><a class="reference internal" href="_modules/django_select2/util.html#is_valid_id"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#django_select2.util.is_valid_id" title="Permalink to this definition"></a></dt>
<dd><p>Checks if <tt class="docutils literal"><span class="pre">val</span></tt> is a valid generated Id.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>val</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#str" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">str</span></tt></a>) &#8211; The value to check.</td>
</tr>
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#bool" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">bool</span></tt></a></td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="django_select2.util.register_field">
<tt class="descclassname">django_select2.util.</tt><tt class="descname">register_field</tt><big>(</big><em>*args</em>, <em>**kwargs</em><big>)</big><a class="reference internal" href="_modules/django_select2/util.html#register_field"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#django_select2.util.register_field" title="Permalink to this definition"></a></dt>
<dd><p>Registers an Auto field for use with <a class="reference internal" href="ref_views.html#django_select2.views.AutoResponseView" title="django_select2.views.AutoResponseView"><tt class="xref py py-class docutils literal"><span class="pre">views.AutoResponseView</span></tt></a>.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>key</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#unicode" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">unicode</span></tt></a>) &#8211; The key to use while registering this field.</li>
<li><strong>field</strong> (<tt class="xref py py-class docutils literal"><span class="pre">AutoViewFieldMixin</span></tt>) &#8211; The field to register.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">The generated Id for this field. If given <tt class="docutils literal"><span class="pre">key</span></tt> was already registered then the
Id generated that time, would be returned.</p>
</td>
</tr>
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#unicode" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">unicode</span></tt></a></p>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="django_select2.util.get_field">
<tt class="descclassname">django_select2.util.</tt><tt class="descname">get_field</tt><big>(</big><em>id_</em><big>)</big><a class="reference internal" href="_modules/django_select2/util.html#get_field"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#django_select2.util.get_field" title="Permalink to this definition"></a></dt>
<dd><p>Returns an Auto field instance registered with the given Id.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>id</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#unicode" title="(in Python v2.7)"><tt class="xref py py-obj docutils literal"><span class="pre">unicode</span></tt></a>) &#8211; The generated Id the field is registered with.</td>
</tr>
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><tt class="xref py py-class docutils literal"><span class="pre">AutoViewFieldMixin</span></tt> or None</td>
</tr>
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