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Package web2py ::
<a href="web2py.gluon-module.html">Package gluon</a> ::
<a href="web2py.gluon.dal-module.html">Module dal</a> ::
Class Expression
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<!-- ==================== CLASS DESCRIPTION ==================== -->
<h1 class="epydoc">Class Expression</h1><span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression">source code</a></span><br /><br />
<pre class="base-tree">
object --+
|
<strong class="uidshort">Expression</strong>
</pre>
<dl><dt>Known Subclasses:</dt>
<dd>
<a href="web2py.gluon.dal.Field-class.html">Field</a>
</dd></dl>
<hr />
<!-- ==================== INSTANCE METHODS ==================== -->
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<span class="summary-type"> </span>
</td><td class="summary">
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<tr>
<td><span class="summary-sig"><a href="web2py.gluon.dal.Expression-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">db</span>,
<span class="summary-sig-arg">op</span>,
<span class="summary-sig-arg">first</span>=<span class="summary-sig-default">1</span>,
<span class="summary-sig-arg">second</span>=<span class="summary-sig-default">1</span>,
<span class="summary-sig-arg">type</span>=<span class="summary-sig-default">1</span>)</span><br />
x.__init__(...) initializes x; see x.__class__.__doc__ for
signature</td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__init__">source code</a></span>
</td>
</tr>
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</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="sum"></a><span class="summary-sig-name">sum</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.sum">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="max"></a><span class="summary-sig-name">max</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.max">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="min"></a><span class="summary-sig-name">min</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.min">source code</a></span>
</td>
</tr>
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</td>
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<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="len"></a><span class="summary-sig-name">len</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.len">source code</a></span>
</td>
</tr>
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</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="lower"></a><span class="summary-sig-name">lower</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.lower">source code</a></span>
</td>
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</td>
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<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="upper"></a><span class="summary-sig-name">upper</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.upper">source code</a></span>
</td>
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</td>
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<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="year"></a><span class="summary-sig-name">year</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.year">source code</a></span>
</td>
</tr>
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</td>
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<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="month"></a><span class="summary-sig-name">month</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.month">source code</a></span>
</td>
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</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="day"></a><span class="summary-sig-name">day</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.day">source code</a></span>
</td>
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</table>
</td>
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<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="hour"></a><span class="summary-sig-name">hour</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.hour">source code</a></span>
</td>
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<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="minutes"></a><span class="summary-sig-name">minutes</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.minutes">source code</a></span>
</td>
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<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="coalesce_zero"></a><span class="summary-sig-name">coalesce_zero</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.coalesce_zero">source code</a></span>
</td>
</tr>
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</td>
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<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="seconds"></a><span class="summary-sig-name">seconds</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.seconds">source code</a></span>
</td>
</tr>
</table>
</td>
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<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__getslice__"></a><span class="summary-sig-name">__getslice__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">start</span>,
<span class="summary-sig-arg">stop</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__getslice__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__getitem__"></a><span class="summary-sig-name">__getitem__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">i</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__getitem__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a href="web2py.gluon.dal.Expression-class.html#__str__" class="summary-sig-name">__str__</a>(<span class="summary-sig-arg">self</span>)</span><br />
str(x)</td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__str__">source code</a></span>
</td>
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</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__or__"></a><span class="summary-sig-name">__or__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">other</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__or__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__invert__"></a><span class="summary-sig-name">__invert__</span>(<span class="summary-sig-arg">self</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__invert__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__add__"></a><span class="summary-sig-name">__add__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">other</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__add__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__sub__"></a><span class="summary-sig-name">__sub__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">other</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__sub__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__mul__"></a><span class="summary-sig-name">__mul__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">other</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__mul__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__div__"></a><span class="summary-sig-name">__div__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">other</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__div__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__mod__"></a><span class="summary-sig-name">__mod__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">other</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__mod__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__eq__"></a><span class="summary-sig-name">__eq__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">value</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__eq__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__ne__"></a><span class="summary-sig-name">__ne__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">value</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__ne__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__lt__"></a><span class="summary-sig-name">__lt__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">value</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__lt__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__le__"></a><span class="summary-sig-name">__le__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">value</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__le__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__gt__"></a><span class="summary-sig-name">__gt__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">value</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__gt__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="__ge__"></a><span class="summary-sig-name">__ge__</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">value</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__ge__">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="like"></a><span class="summary-sig-name">like</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">value</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.like">source code</a></span>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="belongs"></a><span class="summary-sig-name">belongs</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">value</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.belongs">source code</a></span>
</td>
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<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
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<tr>
<td><span class="summary-sig"><a name="startswith"></a><span class="summary-sig-name">startswith</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">value</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.startswith">source code</a></span>
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<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="endswith"></a><span class="summary-sig-name">endswith</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">value</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.endswith">source code</a></span>
</td>
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</td>
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<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="contains"></a><span class="summary-sig-name">contains</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">value</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.contains">source code</a></span>
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<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a name="with_alias"></a><span class="summary-sig-name">with_alias</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">alias</span>)</span></td>
<td align="right" valign="top">
<span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.with_alias">source code</a></span>
</td>
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</td>
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<tr>
<td colspan="2" class="summary">
<p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
<code>__delattr__</code>,
<code>__getattribute__</code>,
<code>__hash__</code>,
<code>__new__</code>,
<code>__reduce__</code>,
<code>__reduce_ex__</code>,
<code>__repr__</code>,
<code>__setattr__</code>
</p>
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<td align="left"><span class="table-header">Properties</span></td>
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><span class="options">[<a href="#section-Properties"
class="privatelink" onclick="toggle_private();"
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</td>
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<td colspan="2" class="summary">
<p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
<code>__class__</code>
</p>
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<a name="__init__"></a>
<div>
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cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">db</span>,
<span class="sig-arg">op</span>,
<span class="sig-arg">first</span>=<span class="sig-default">1</span>,
<span class="sig-arg">second</span>=<span class="sig-default">1</span>,
<span class="sig-arg">type</span>=<span class="sig-default">1</span>)</span>
<br /><em class="fname">(Constructor)</em>
</h3>
</td><td align="right" valign="top"
><span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__init__">source code</a></span>
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x.__init__(...) initializes x; see x.__class__.__doc__ for
signature
<dl class="fields">
<dt>Overrides:
object.__init__
<dd><em class="note">(inherited documentation)</em></dd>
</dt>
</dl>
</td></tr></table>
</div>
<a name="__str__"></a>
<div>
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cellspacing="0" width="100%" bgcolor="white">
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<h3 class="epydoc"><span class="sig"><span class="sig-name">__str__</span>(<span class="sig-arg">self</span>)</span>
<br /><em class="fname">(Informal representation operator)</em>
</h3>
</td><td align="right" valign="top"
><span class="codelink"><a href="web2py.gluon.dal-pysrc.html#Expression.__str__">source code</a></span>
</td>
</table>
str(x)
<dl class="fields">
<dt>Overrides:
object.__str__
<dd><em class="note">(inherited documentation)</em></dd>
</dt>
</dl>
</td></tr></table>
</div>
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