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django ::
db ::
models ::
fields ::
subclassing ::
SubfieldBase ::
Class&nbsp;SubfieldBase
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<!-- ==================== TYPE DESCRIPTION ==================== -->
<h1 class="epydoc">Type SubfieldBase</h1><p class="nomargin-top"></p>
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<pre class="literalblock">
A metaclass for custom Field subclasses. This ensures the model's attribute
has the descriptor protocol attached to it.
</pre>
<!-- ==================== INSTANCE METHODS ==================== -->
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<p class="indent-wrapped-lines"><b>Inherited from <code>type</code></b>:
<code>__call__</code>,
<code>__delattr__</code>,
<code>__eq__</code>,
<code>__ge__</code>,
<code>__getattribute__</code>,
<code>__gt__</code>,
<code>__hash__</code>,
<code>__init__</code>,
<code>__le__</code>,
<code>__lt__</code>,
<code>__ne__</code>,
<code>__repr__</code>,
<code>__setattr__</code>,
<code>__subclasses__</code>,
<code>mro</code>
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<p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
<code>__format__</code>,
<code>__reduce__</code>,
<code>__reduce_ex__</code>,
<code>__sizeof__</code>,
<code>__str__</code>,
<code>__subclasshook__</code>
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<span class="summary-type"><pre class="literalblock">
a new object with type S, a subtype of T
</pre></span>
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<td><span class="summary-sig"><a href="django.db.models.fields.subclassing.SubfieldBase-class.html#__new__" class="summary-sig-name">__new__</a>(<span class="summary-sig-arg">cls</span>,
<span class="summary-sig-arg">name</span>,
<span class="summary-sig-arg">bases</span>,
<span class="summary-sig-arg">attrs</span>)</span></td>
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<p class="indent-wrapped-lines"><b>Inherited from <code>type</code></b>:
<code>__abstractmethods__</code>,
<code>__base__</code>,
<code>__bases__</code>,
<code>__basicsize__</code>,
<code>__dictoffset__</code>,
<code>__flags__</code>,
<code>__instancecheck__</code>,
<code>__itemsize__</code>,
<code>__mro__</code>,
<code>__name__</code>,
<code>__subclasscheck__</code>,
<code>__weakrefoffset__</code>
</p>
<p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
<code>__class__</code>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">__new__</span>(<span class="sig-arg">cls</span>,
<span class="sig-arg">name</span>,
<span class="sig-arg">bases</span>,
<span class="sig-arg">attrs</span>)</span>
<br /><em class="fname">Static Method</em>
</h3>
</td><td align="right" valign="top"
>&nbsp;
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<pre class="literalblock">
</pre>
<dl class="fields">
<dt>Returns: <pre class="literalblock">
a new object with type S, a subtype of T
</pre></dt>
<dt>Overrides:
object.__new__
<dd><em class="note">(inherited documentation)</em></dd>
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